Aplex SC-35 HDD Pump

Aplex SC-35 HDD Pump
Details:
The APLEX SC-35 is a Triplex Piston Pump equipped with three plungers. Compared to duplex or single-plunger pumps, this design typically provides a smoother flow output. The pump is specifically designed for intermittent duty workloads, a positioning that distinguishes it from the heavy-duty MA series pumps suitable for continuous, 24/7 operation, making it more cost-effective in specific application markets.
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Pump Type, Rated Power, Rated and Maximum Speed, Stroke Length

 

 

The APLEX SC-35 is a Triplex Piston Pump equipped with three plungers. Compared to duplex or single-plunger pumps, this design typically provides a smoother flow output. The pump is specifically designed for intermittent duty workloads, a positioning that distinguishes it from the heavy-duty MA series pumps suitable for continuous, 24/7 operation, making it more cost-effective in specific application markets.

Its core power parameters are as follows:

 

Maximum Rated Power:

50 HP (37 kW). This power level indicates the SC-35's capability to handle high-load tasks within its intermittent duty cycles, significantly higher than the reference model R10 (which recommends an 8-9 HP gas engine).

 
 

Maximum Rated Speed:

625 RPM. This speed, along with the stroke length and plunger diameter, determines the pump's theoretical displacement. This speed is slightly higher than the R10's 580 RPM.

 
 

Stroke Length:

2.00 inches (50.8 mm). This is a fundamental design parameter that affects single-stroke displacement, and consequently, the flow rate and potential pulsation characteristics.

 
 

Maximum Rod Load:

4800 lbs (21.3 kN). This parameter indicates the maximum force that the power end components (such as connecting rods, crossheads, and crankshaft) can withstand, directly correlating to the pump's pressure-handling capability.

 

 

Key Technical Specifications

 

 

Parameter Item

Specification Value

Pump Type

Triplex Piston Pump

Number of Plungers

3

Maximum Rated Power

50 HP (37 kW)

Maximum Rated Speed

625 RPM

Stroke Length

2.00 inches (50.8 mm)

Maximum Rod Load

4800 lbs (21.3 kN)

Typical Plunger Diameter Options

1.250 - 2.250 inches

Example Performance

51 GPM @ 1500 PSI (193 LPM @ 103 bar)

Overall Pump Weight

Approx. 250 lbs (113.4 kg)

Suction Port (Inferred)

"1-1/2"" or 2"" NPT"

Discharge Port (Inferred)

"1"" NPT "

Drive Options

Direct drive, external reduction drive (motor/engine), hydraulic motor drive

Duty Cycle

Intermittent Duty

 

Key Component Materials and Design Features

 

 

Component Name

Material Options

Key Design Features

Fluid End Block

Ductile Iron, Aluminum Bronze, Carbon Steel, Stainless Steel

Multiple material options to suit different fluids

Cylinder/Coating

Ceramic Coated, White Ceramic

High wear resistance, low friction coefficient

Piston Type

Cup Piston

 

Piston Cup Material

"Supergold" (proprietary material), HSN/Kevlar® (analogous to SC-45L)

Wear-resistant, chemical-resistant

Valve

17-4PH Stainless Steel, Delrin® (Valve Disc)

Dual stem guided, abrasive service kit available

Valve Seat

17-4PH Stainless Steel

Hardened for a durable sealing surface

Valve Spring

Inconel® (analogous to SC-45)

High corrosion resistance, high-temperature strength

Stuffing Box

Carbon Steel, Stainless Steel (analogous to SC-30/45)

Field-removable and replaceable

Seals (Static)

Buna-N (Nitrile Rubber) (analogous to SC-30/45)

Standard O-rings and gaskets

Seals (Dynamic/Packing)

Various packing types available (PTFE/Aramid fiber, etc., analogous to SC-30/45)

Adapts to different operating conditions

Component Name

Material/Type

Power End Frame/Crankcase

Cast Iron (inferred from R10, SC-30/30H)

Crankshaft

Ductile Iron; special crankshaft for hydraulic drive available

Connecting Rod

Ductile Iron, Automotive Type (based on SC-30/30H)

Crosshead

Cast Iron, Full Cylindrical (based on SC-30/30H)

Main Bearings

Timken® Tapered Roller Bearings (based on SC-30/30H)

Crankpin Bearings

Precision Automotive, Babbitt-Lined (based on SC-30/30H)

Wrist Pin

AISI 8620 Steel, case hardened and ground

Lubrication System

Splash & Scoop

 

Recommended Power End Lubrication and Maintenance

 

 

 

High-quality spring-loaded Buna-N material seals are used at key sealing points in the pump, such as piston rod seals and valve cover seals. The spring-loaded structure allows the sealing lips to maintain effective pressure against the mating surface even after some wear, maintaining the sealing effect.

 

Power End

 
 

 

Item

Recommendation

Lubricant Type

SAE 30 Motor Oil (based on C-series and general practice)

Crankcase Oil Capacity

2 US Quarts (approx. 1.89 liters) (based on SC-30/45 and C-series)

First Oil Change Interval

After the first 30 hours of operation (based on C-series)

Regular Oil Change Interval

Every 300 hours or when oil contamination is observed (based on C-series)

Daily Check

Check oil level

 

Piston/Piston Cup Assembly and Cylinder

 

 

Piston/Piston Cups:

"CUP PISTON 2.00" O.D.", SKU: 7206-0392-00A.

"PISTON CUP KIT SUPERGOLD FOR APLEX MODEL SC-35", SKU: 7602-5000-20A.

"HUB, PISTON 2.00"", SKU: 7206-0393-01A.

Cylinder/Liner:

"CERAMIC COATED CYLINDER FOR MYERS APLEX SC-35 C40-20", SKU: 06124A004.

 

Seal/Packing Components

Static Seals:

"CYLINDER COVER BACK UP RING", SKU: 18753A009.

"CYLINDER COVER O-RING", SKU: 05876A173.

"VALVE COVER O-RING", SKU: 05876A258. The material for O-rings, such as Buna-N or Viton®, is typically selected based on fluid compatibility. The technical data sheets for SC-30/SC-45 indicate that the stuffing box and valve cover seals are Buna-N.

Dynamic Seals/Repair Kits:

Rhino Supply lists an "Aplex SC-35 Oil Seal Repair KIT", part number: 261020. This most likely refers to the power end crankshaft oil seal.

The piston cup itself is the primary dynamic seal and is listed in section 4.1.

 

Valve Assembly

 

 

Includes valve body, seat, disc, spring, etc.

"VALVE KIT ABRASIVE SERVICE FOR APLEX MODEL SC-35", SKU: 7602-5000-10A. This kit includes 3 suction valve assemblies (TS15-ARO-ACO718) and 3 discharge valve assemblies (TS15-ARO-ACO719).

The aftermarket also offers "AR VALVE ASSEMBLY; SUCTION, SC-35" (SKU: 303222) and "AR VALVE ASSEMBLY; DISCHARGE, SC-35" (SKU: 303223).

Materials for similar SC series valves are 17-4PH stainless steel (body, seat, disc) and Inconel® alloy (springs). Valves are critical high-wear components. The "abrasive service kit" implies the use of hardened materials or an optimized design to handle fluids containing particulates.

 

Key Power End Components (as Repair Parts)

 

 

  • "CRANKSHAFT; FOR BEARINGLESS HYD DRIVE SC-35", SKU: 28153D014.
  • "CROSSHEAD & PISTON ROD FAB SC-35", SKU: 17515B004.
  • "WRIST PIN FOR C25, C35, C40, AND APLEX SC-35", SKU: 06116A000.
  • The availability of major power end components as spare parts is crucial for pump overhauls and extending service life.

 

Key Wear Parts and Recommended Accessories

 

 

Component Category

Specific Part Name/SKU (if available)

Main Material/Characteristics

Recommended Accessories

General Specifications/Notes

Piston Assembly

"CUP PISTON 2.00"" O.D. (7206-0392-00A); PISTON CUP KIT SUPERGOLD (7602-5000-20A)"

"Supergold" (premium material), 2.00 inch

-

Critical wear part

Cylinder Liner

"CERAMIC COATED CYLINDER (06124A004); Aplex SC-35 Liner 2"", Ceramic coated (261010)"

Ceramic Coated

-

Excellent wear resistance

Valve Assembly

VALVE KIT ABRASIVE SERVICE (7602-5000-10A); AR VALVE ASSEMBLY SUCTION/DISCHARGE

"17-4PH Stainless Steel, Inconel® (spring) (analogous to SC series)"

-

"Abrasive Service" kit available

Seals

CYLINDER COVER O-RING (05876A173); VALVE COVER O-RING (05876A258); Oil Seal Repair KIT (261020)

Buna-N (common)

-

Includes O-rings, backup rings, oil seals

Power End Spares

CRANKSHAFT (HYD DRIVE) (28153D014); CROSSHEAD & PISTON ROD (17515B004); WRIST PIN (06116A000)

Ductile Iron, AISI 8620 Steel

-

For overhaul and repair

 

Applicable Standards and Manufacturer Certifications

 

 

Standard/Certification

Relevance to SC-35

Hydraulic Institute Standards

Baseline for design and testing

API 674 (Configurable)

Option for critical applications, with stricter requirements for materials, design, and testing

ISO 9001:2015 (Manufacturer Plant Certification)

Quality management system certification, ensuring manufacturing process consistency and product uniformity

API-7K (Component level, e.g., ceramic liner supplier)

Manufacturing and quality standard that specific components (like ceramic liners) may follow to enhance reliability

 

APLEX SC-35: Market Position, Typical Applications, and Competitive Advantages

 

 

6.1. Target Industries and Typical Application Scenarios

Myers-Aplex series pumps are widely used in various industries, including: Oil & Gas, Directional Drilling, Sewer Cleaning, Water Treatment, Steel Mills, Gas Dehydration/Sweetening, Crude Oil Transfer, Water Jetting/Blasting, Mine Dewatering, Hydrostatic Testing, Reverse Osmosis (Desalination), NGL Transport, Bentonite Mud Pumping, Well Fracturing, Food Processing, Chemical Processing, Vehicle Wash, and more. The name "SC-35 HDD PISTON PUMP" directly points to its application in the Horizontal Directional Drilling field.

 

6.2. Market Position and Unique Selling Propositions (USPs)

The market positioning of the APLEX SC-35 is as a compact, cost-effective pump designed for intermittent/shift-based operations, inheriting many design features from the heavy-duty MA series. This positioning makes it an attractive choice for applications that do not require continuous operation but demand high performance and reliability, balancing initial procurement costs and footprint.

Its core Unique Selling Propositions include:

Ease of maintenance and 'user friendly' designs.

Built for field serviceability.

These features are highly appealing to users who prioritize reducing downtime and lowering the total lifecycle operating cost.

Furthermore, the wide range of optional configurations and diverse fluid end materials (such as ductile iron, aluminum bronze, carbon steel, and stainless steel) allow the pump to be customized to specific customer needs, adapting to different fluid characteristics and operating conditions, thereby broadening its market adaptability.

 

6.3. Main Competitive Advantages

The main competitive advantages of the APLEX SC-35 can be summarized as follows:

Reliability in Intermittent Duty: Specifically designed and optimized for this mode of operation.

Broad Applicability: Capable of handling a variety of demanding applications due to its diverse material options and robust design.

Excellent Serviceability: Designed with a focus on the convenience of field maintenance.

Cost-Effectiveness: In suitable applications, its initial investment is more economical and its structure is more compact compared to continuous heavy-duty pumps.

Superior Abrasion Resistance: Optional ceramic liners and abrasive service valve kits are available.

Flexible Drive Options: Supports traditional motor/engine drives and offers a direct hydraulic motor drive option.

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Hot Tags: aplex sc-35 hdd pump, China aplex sc-35 hdd pump manufacturers, suppliers, factory

Product Name

SC-35 HDD Piston Pump (51 GPM @ 1500 PSI)

Brand

APLEX

SKU

60189F002

Weight

300 LBS 180.0kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

SC-35 HDD Piston Pump Assembly (51 GPM @ 1500 PSI)

The SC-35 Triplex Piston Pump is a high-performance mud pump specifically engineered for the demanding conditions of Horizontal Directional Drilling (HDD). Its power frame is integrally cast from robust Cast Iron for superior rigidity and low vibration. The fluid end key components feature Ceramic Coated 416 Stainless Steel liners for excellent abrasive resistance, piston cups made from HNBR and High-Strength Synthetic Fabric composite, and abrasion-resistant 17-4PH Stainless Steel valves. This pump delivers a stable output of up to 51 GPM @ 1500 PSI, making it the ultimate wear-resistant solution for guaranteeing mud circulation and reducing total cost of ownership.

 

image001

 

Product Name

SC-35 HDD Piston Pump (51 GPM @ 1500 PSI)

Brand

MYERS

SKU

06124A004

Weight

0.59 lbs 0.35kg

Width

2.31 in 5.9cm

Height

2.31 in 5.9cm

Depth

3.00 in 7.6cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex SC-35 Ceramic Coated Cylinder SKU: 06124A004

This Ceramic Coated Cylinder is designed for the Myers Aplex SC-35 C40-20 mud pump. It features a high-strength 416 Stainless Steel outer shell with an internal ceramic coating or sintered liner, providing exceptional surface hardness and superior corrosion resistance. The coated surface is super-precision ground, drastically smoother than metal, minimizing friction and wear on the piston packing. This cylinder is a critical non-wearing component for guaranteeing ultra-long service life and high volumetric efficiency in HDD (Horizontal Directional Drilling) and abrasive fluid applications.

 

image003

Product Name

PISTON CUP KIT SUPERGOLD FOR APLEX MODEL SC-35

Brand

APLEX

SKU

7602-5000-20A

Weight

1.08 LBS 0.65 kg

Width

4.25 (in) 10.8 cm

Height

4.25 (in) 10.8 cm

Depth

5.00 (in) 12.7cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Supergold Piston Cup Kit SKU: 76026-5000-20A

This Supergold Piston Cup Kit is engineered for the highly abrasive operating conditions of the Aplex SC-35 mud pump. The piston cups are precision-molded from a composite material of High-Performance HNBR or Polyurethane reinforced with Kevlar/Aramid Fiber Fabric. This ultra-reinforced structure provides superior abrasive resistance and extrusion resistance, ensuring a perfect fit with ceramic cylinder liners under high pressure. This kit is the premium, wear-resistant sealing solution for guaranteeing maximum service life and high volumetric efficiency in demanding HDD (Directional Drilling) mud circulation.

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Product Name

Oil Seal Repair Kit for APLEX Model SC-35

Brand

APLEX

SKU

7602-5000-30A

Weight

0.09 LBS 0.05kg

Width

10.00 (in) 25.4cm

Height

7.50 (in) 19.1cm

Depth

0.75 (in) 1.9cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Oil Seal Repair Kit SKU: 7602-5000-30A

This Oil Seal Repair Kit is designed for the power end of the Aplex SC-35 piston pump, providing a complete maintenance package for lubrication system integrity. The kit's rotary shaft oil seals are primarily made from oil- and temperature-resistant Nitrile Rubber (NBR/Buna-N) or high-performance Fluoroelastomer (FKM/Viton®), precision-assembled within a steel case. These seals prevent lubricant leakage at high-speed rotating shafts like the crankshaft and pinion shaft, while excluding external contaminants. This is a critical maintenance kit for ensuring the long-term, high-efficiency, and low-friction operation of the pump's bearings and drive components.

product-1024-1024

Product Name

Valve Kit Abrasive Service for APLEX Model SC-35

Brand

APLEX

SKU

7602-5000-10A

Weight

8.60 lbs 5.16 kg

Width

17.00 in 43.2 cm

Height

8.50 in 21.6 cm

Depth

9.00 in 22.9 cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Valve Kit Abrasive Service SKU: 7602-5000-10A

This Abrasive Service Valve Kit is specifically designed for the Aplex SC-35 Piston Pump to handle highly abrasive mud conditions. The core component, the Valve Assembly (Suction/Discharge), utilizes high-performance 17-4PH Stainless Steel (a martensitic precipitation-hardening stainless steel) which is heat-treated for extreme hardness and strength. The valve seat and valve plate feature a wing-guided or similar wear-resistant design to effectively guide fluid and minimize erosive impact, maximizing volumetric efficiency and service life. This is the core flow control solution for ensuring stable high-pressure operation of the mud pump in HDD (Horizontal Directional Drilling).

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Product Name

Cup Piston 2.00" O.D.

Brand

-

SKU

7206-0392-00A

Weight

0.07 LBS 0.05 kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

2.00" O.D. Cup Piston Seal SKU: 7206-0392-00A

This 2.00 Inch O.D. Cup Piston Seal is a high-pressure sealing element for Aplex SC-35 and similar pumps. It is precision-molded from a composite of HNBR (Hydrogenated Nitrile Butadiene Rubber) and High-Strength Synthetic Fabric. This composite structure provides exceptional wear resistance, extrusion resistance, and high-temperature resistance, effectively standing up to mud and abrasive fluids. The piston cup creates a tight self-sealing fit against the ceramic cylinder liner under high pressure, making it a critical wear part for ensuring high volumetric efficiency and extended liner life.

image009

Product Name

CYLINDER BODY SC-35

Brand

-

SKU

28143E000

Weight

85.00 LBS 51kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Cylinder Body (Fluid End) SKU: 28143E000

This Cylinder Body is the core pressure-bearing structure of the Aplex SC-35 mud pump's fluid end. It is precision-cast from high-strength Ductile Iron (ASTM A536 80-55-06). Ductile Iron is renowned for its superior high-pressure resistance, high strength, and impact resistance, allowing it to withstand continuous working pressures up to 2,700 PSI. The body features precisely machined and optimized fluid passages to accommodate ceramic cylinder liners and abrasion-resistant stainless steel valves, serving as the structural foundation for the pump's long-term durability and fluid efficiency in HDD and other high-pressure abrasive fluid applications.

image011

Product Name

CRANK; BEARINGLESS HYD DRIVE SC-35

Brand

Write a Review

SKU

28153D014

Weight

22.00 LBS 13.2kg

Width

4.00 (in) 10.2cm

Height

4.00 (in) 10.2cm

Depth

14.00 (in) 8.4cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Bearingless Hydraulic Drive Crankshaft SKU: 28153D014

This Bearingless Crankshaft is a hydraulic direct drive component specifically designed for the Aplex SC-35 mud pump. The crankshaft is precision-forged and heat-treated from high-strength 4140 Alloy Steel, ensuring excellent strength and fatigue resistance under extreme torque and continuous shock loads. Unlike traditional crankshafts, this model is engineered for direct coupling to a hydraulic motor, eliminating the need for main bearings within the pump casing. Its bearingless design simplifies the pump's drive train, optimizing the pump for compact installation and is critical for ensuring high reliability in HDD (Directional Drilling) equipment power transmission.

image013

Product Name

Crosshead & Piston Rod FAB SC-35

Brand

-

SKU

175158004

Weight

2.00 lbs 1.2kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Crosshead & Piston Rod FAB Assembly SKU: 175158004

This Crosshead & Piston Rod Assembly is the core reciprocating motion component in the power end of the Aplex SC-35 mud pump. The crosshead body is precision-cast from robust Ductile Iron, while the piston rod (Pony Rod) is typically made from 303 Stainless Steel or similar corrosion-resistant alloy steel. The rod surface is precision ground and polished to ensure low-friction, high-integrity sealing with the oil seals and packing. This assembly guarantees accurate and highly efficient power conversion in HDD and other high-pressure applications, making it critical for maintaining pump mechanical alignment and preventing leakage.

image015

Product Name

Hub, Piston 2.00"

Brand

-

SKU

7206-0393-01A

Weight

0.63 lbs 0.38kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

2.00" Piston Hub/Piston Seat SKU: 7206-0393-01A

This 2.00 Inch Piston Hub is the metallic core of the mud pump's piston assembly. It is typically precision-machined from high-strength Carbon Steel or Alloy Steel, designed to provide rigid support and positioning for the piston cup (seal). The hub connects via precise threads to the piston rod and secures the piston cup, ensuring the piston assembly maintains structural integrity and accurate alignment under high-pressure fluid impact. This piston seat is critical for guaranteeing the piston sealing system performs optimally and withstands high axial loads.

image017

Product Name

Cylinder Cover Back Up Ring

Brand

-

SKU

18753A009

Weight

0.00 lbs 0.05kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

Cylinder Cover Back Up Ring SKU: 18753A009

This Cylinder Cover Back Up Ring is a critical support element used in the cylinder cover sealing area of mud pump fluid ends. It is precision-machined from high-strength, low-friction engineered thermoplastic material such as PTFE (Teflon) or Nylon (Polyamide). The back-up ring is installed next to the primary O-ring/seal and effectively resists extrusion and damage to the softer seal material caused by high fluid pressure. It significantly increases the sealing system's pressure resistance and reliability, making it an essential component for guaranteeing long-term, leak-free pump operation in high-pressure service.

image021

Product Name

Cylinder Cover O-Ring

Brand

-

SKU

05876A173

Weight

0.01 lbs 0.05kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

Cylinder Cover O-Ring SKU: 05876A173

This Cylinder Cover O-Ring is a critical static seal used in the fluid end of Myers Aplex SC-35 series pumps. It is precision-molded from oil-resistant, highly elastic Nitrile Rubber (NBR/Buna-N). The O-ring fits between the cylinder cover and the cylinder body, effectively preventing high-pressure fluid leakage. Its precise dimensions and excellent compression set resistance guarantee the pump's sealing integrity during continuous high-pressure operation. As an easily replaceable seal, it is key to maintaining the pump's high volumetric efficiency and low maintenance costs.

image019

Product Name

VALVE COVER O-RING

Brand

-

SKU

05876A258

Weight

0.00 lbs 0.05kg

Width

-

Height

-

Depth

-

Shipping

Calculated at Checkout

Product Description

Valve Cover O-Ring SKU: 05876A258

This Valve Cover O-Ring is used for high-pressure static sealing of the fluid end valve covers on Myers Aplex SC Series pumps (e.g., SC-35). It is precision-molded from oil- and high-pressure-resistant Nitrile Rubber (NBR/Buna-N). The O-ring fits between the valve cover and the valve chamber body, ensuring that high-pressure fluid does not leak during pump operation. Its excellent compression set resistance is key to guaranteeing the pump's volumetric efficiency and operational safety. Fluoroelastomer (FKM) is available for high corrosion or high temperature fluids.

image023

Product Name

Wrist Pin for C25, C35, C40, and APLEX SC-35

Brand

MYERS

SKU

06116A000

Weight

0.45 LBS 0.27kg

Width

1.00 (in) 2.5cm

Height

1.00 (in) 2.5cm

Depth

2.25 (in) 5.7cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Wrist Pin (Crosshead Pin) SKU: 06116A000

This Wrist Pin is a critical moving component in the power end of Myers Aplex C25/C35/C40/SC-35 series pumps. It is precision-machined from high-strength AISI 1018 Alloy Steel and subjected to Case-Hardening and High-Precision Grinding processes. This treatment provides extreme surface hardness and a mirror finish, allowing it to withstand high-frequency shock loads while minimizing friction and wear against the connecting rod bushings. It is essential for guaranteeing smooth, accurate piston reciprocation and extended bearing life in the pump.

image025

Product Name

Connecting Rod (Link): C Series and SC-35

Brand

MYERS

SKU

27300B000

Weight

2.70 LBS 1.62kg

Width

4.20 (in) 10.7cm

Height

1.81 (in) 4.6cm

Depth

6.75 (in) 17.1cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex C/SC-35 Series Connecting Rod Assembly SKU: 27300B000

This Connecting Rod Assembly is the core transmission component in the power end of Myers Aplex C Series/SC-35 pumps. The rod body is precision-cast and machined from Automotive-Grade Ductile Iron, offering exceptional high strength and fatigue resistance. The assembly is fitted with high-precision shell bearing inserts and bronze bushings, ensuring extremely low friction surfaces against the crankshaft journal and wrist pin. It is a critical moving part for guaranteeing efficient, smooth power transfer while operating continuously at up to 2,700 PSI pressure.

image029

Product Name

Housing; Oil Seal for C25, C35, C40, D65 Series and APLEX SC-35

Brand

MYERS

SKU

24959A002

Weight

0.38 LBS 0.23kg

Width

2.32 (in) 5.9cm

Height

2.32 (in) 5.9cm

Depth

1.00 (in) 2.5cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Oil Seal Housing SKU: 24959A002

This Oil Seal Housing is a critical component in the power end of Myers Aplex C/D/SC-35 series pumps, serving to house the pony rod oil seals. The body is precision-machined from high-strength Cast Iron or Alloy Steel, engineered to ensure precise alignment of the seal lip with the reciprocating piston rod. Its main function is to securely retain the oil seals, creating a reliable dynamic seal that prevents crankcase lubricant leakage while excluding fluid end contaminants. This housing is a key structural piece for maintaining the pump's clean oil system and extended bearing life.

image031

Product Name

Retainer: Oil Seal Housing for C25, C35, C40, D65 Series and APLEX SC-35

Brand

MYERS

SKU

24958A001

Weight

0.75 lbs 0.45kg

Width

3.00 in 7.6cm

Height

3.00 in 7.6cm

Depth

0.75 in 1.9cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Oil Seal Housing Retainer SKU: 24958A001

This Oil Seal Housing Retainer is a critical locating structural component in the power end of Myers Aplex C/D/SC-35 series pumps. It is precision-machined from high-strength Alloy Steel or Cast Iron, designed to axially secure the Oil Seal Housing (SKU 24959A002) within the pump casing. Its main function is to ensure precise alignment and mounting stability for the piston rod oil seal system, preventing any movement of the housing under high-frequency vibration and pressure. This retainer is essential for guaranteeing the reliability of the crankcase lubricant seal and extending bearing life.

image033

Product Name

Cylinder Liner Puller; SC-35

Brand

MYERS

SKU

FE1182

Weight

4.49 LBS 2.69 kg

Width

5.25 (in) 13.3 cm

Height

4.50 (in) 11.4cm

Depth

10.50 (in) 26.7 cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35 Cylinder Liner Puller SKU: FE1182

This Cylinder Liner Puller is a heavy-duty maintenance tool specifically designed for the Aplex SC-35 series pumps. The main body and critical components are precision-machined and heat-treated from high-strength Alloy Steel, ensuring exceptional tensile and impact resistance when extracting tightly fitted cylinder liners. This puller safely and quickly removes liners from the fluid end, preventing damage to the ceramic liners or the cylinder body that can occur with non-specialized tools. It is an essential professional tool for guaranteeing fast, safe maintenance and reduced repair costs.

image033

Product Name

Discharge Valve Assembly Abrasive Service for APLEX SC-35/SC-45

Brand

APLEX

SKU

TS15-AR0-AC0719

Weight

1.31 LBS 0.79kg

Width

4.25 (in) 10.8cm

Height

4.25 (in) 10.8cm

Depth

5.00 (in) 12.7cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35/SC-45 Discharge Valve Assembly Abrasive Service SKU: TS15-AR0-AC0719

This Abrasive Service Discharge Valve Assembly is a pre-assembled, core component for the fluid end of Aplex SC-35/SC-45 mud pumps. The valve components (disc, seat) are precision-machined from high-hardness 17-4PH Stainless Steel or specially heat-treated alloy steel, providing exceptional abrasive wash resistance and corrosion resistance. The assembly ensures precise unidirectional discharge of fluid under high pressure, minimizing leakage and wear. It is a critical flow control module for guaranteeing ultra-long service life and high-efficiency operation in HDD and other demanding abrasive fluid applications.

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Product Name

Suction Valve Assembly Abrasive Service for APLEX SC-35/SC-45

Brand

APLEX

SKU

TS15-AR0-AC0718

Weight

1.09 LBS 0.65 kg

Width

4.25 (in) 10.8 cm

Height

4.25 (in) 10.8 cm

Depth

5.00 (in) 12.7 cm

Shipping

Calculated at Checkout

Product Description

Aplex SC-35/SC-45 Suction Valve Assembly Abrasive Service SKU: TS15-AR0-AC0718

This Abrasive Service Suction Valve Assembly is a pre-assembled, core component for unidirectional fluid intake in the fluid end of Aplex SC-35/SC-45 mud pumps. The valve components utilize high-hardness 17-4PH Stainless Steel or specially heat-treated alloy steel, providing exceptional abrasive wash resistance and corrosion resistance. The assembly ensures fast, accurate opening and closing of the valve during low-pressure suction, effectively preventing fluid backflow and pressure pulsation. This is a critical fluid intake control module for guaranteeing sustained high volumetric efficiency and ultra-long service life in HDD applications.

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Product Name

Bearing, Pair 2 3/8

Brand

MYERS

SKU

06109A010K

Weight

0.34 LBS 0.20 kg

Width

4.34 (in) 11.0 cm

Height

4.20 (in) 10.7 cm

Depth

4.84 (in) 12.3 cm

Shipping

Calculated at Checkout

Product Description

Myers 2-3/8" Connecting Rod Bearing Pair SKU: 06109A010K

This 2-3/8 inch Bearing Pair is a critical component in the power end of Myers C/SC-35 series pumps, designed to support the crankshaft. It is a high-precision shell-type bearing insert (typically bimetal), composed of a steel backing sintered with a copper- or aluminum-based bearing alloy. This composite material offers exceptional high load carrying capacity and anti-friction properties. The bearing pair ensures smooth rotation of the crankshaft under high speed and continuous working loads, effectively extending the lifespan of the power end system. It is key to guaranteeing the pump's mechanical efficiency and long-term reliability.

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Product Name

Crankshaft Bearing Housing Shim/Gasket .003" - Replaces 05011A027

Brand

MYERS

SKU

05011A030

Weight

0.00 LBS 0.05kg

Width

6.00 (in) 15.2cm

Height

6.00 (in) 15.2cm

Depth

0.01 (in) 0.03cm

Shipping

Calculated at Checkout

Product Description

Myers Crankshaft Bearing Housing Shim/Gasket 0.003" SKU: 05011A030

This shim/gasket is a high-precision adjusting shim for the Myers pump's crankshaft bearing housing, featuring a thickness of 0.003 inches. It is typically precision-stamped from oil-resistant compressed composite material or high-precision stainless/carbon steel sheet. The shim's primary function is to accurately control the axial clearance (End Play) and preload of the crankshaft bearings, ensuring they operate under optimal conditions. It is a critical dimensional control element for guaranteeing the pump's power end system's precise alignment, maximum bearing lifespan, and reduced mechanical failure.

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Product Name

Gasket, Shim, GR .015" - Replaces 05011A028

Brand

MYERS

SKU

05011A031

Weight

0.01 LBS 0.05 kg

Width

6.00 (in) 15.2 cm

Height

6.00 (in) 15.2 cm

Depth

0.02 (in) 0.1 cm

Shipping

Calculated at Checkout

Product Description

Myers Crankshaft Bearing Housing Shim/Gasket 0.015" SKU: 05011A031

This shim/gasket is a high-precision adjusting shim for the Myers pump's crankshaft bearing housing, featuring a thickness of 0.015 inches (0.38 mm). It is typically precision-stamped from high-precision Stainless Steel or Carbon Steel sheet, with oil-resistant compressed composite material also available. The shim's primary function is to accurately control the axial clearance (End Play) and preload of the crankshaft bearings, ensuring power end moving components operate with optimal friction and alignment. This critical dimensional control element replaces the older SKU 05011A028 and is essential for guaranteeing the pump's long life and low-vibration operation.

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Product Name

Bearing Cone Tapered Roller #1

Brand

MYERS

SKU

05674A019

Weight

2.24 LBS 1.34 kg

Width

4.00 (in) 10.2 cm

Height

4.00 (in) 10.2 cm

Depth

1.70 (in) 4.3 cm

Shipping

Calculated at Checkout

Product Description

Myers Tapered Roller Bearing Cone #1 SKU: 05674A019

This Tapered Roller Bearing Cone is a high-precision bearing component used to support the crankshaft in the Myers pump's power end. It is manufactured from high-purity High-Carbon Chromium Bearing Steel (e.g., GCr15), precision heat-treated and ground to ensure exceptional hardness, wear resistance, and fatigue strength. The tapered design allows it to accommodate both radial and axial loads, which is crucial for guaranteeing smooth and accurate crankshaft rotation under heavy and high-speed conditions. As a separable component, it facilitates installation and maintenance, making it central to maintaining pump power transmission efficiency and long service life.

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Product Name

Crankcase for C25, C35, C40, and APLEX SC-35

Brand

MYERS

SKU

06076D000

Weight

72.00 LBS 43.20 kg

Width

17.00 (in) 43.2 cm

Height

10.00 (in) 25.4 cm

Depth

13.00 (in) 33 cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex C/SC-35 Series Crankcase/Power Frame SKU: 06076D000

This Crankcase is the core load-bearing structure for Myers Aplex C25/C35/C40/SC-35 series pumps. It is precision-cast and machined from robust Cast Iron or Ductile Iron, providing exceptional structural rigidity and serving as the reservoir for the splash lubrication system. The integrally machined Crosshead Guides ensure precise alignment of the piston's reciprocating motion. Its high-rigidity structure withstands the enormous dynamic loads from the crankshaft and connecting rods, making it the foundation for the pump's ultra-long service life and mechanical integrity.

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Product Name

Oil Seal Housing Gasket for C25, C35, C40, D65 Series and APLEX SC-35

Brand

MYERS

SKU

05059A435

Weight

0.01 LBS 0.05 kg

Width

1.80 (in) 4.6 cm

Height

1.80 (in) 4.6 cm

Depth

0.03 (in) 0.1 cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Oil Seal Housing Gasket SKU: 05059A435

This Oil Seal Housing Gasket is a static seal in the power end of Myers Aplex C/D/SC-35 series pumps. It is typically precision-cut from oil-impregnated fiber paper (Vellumoid) or non-asbestos composite material. The gasket mounts between the oil seal housing and the pump casing, serving primarily to prevent internal SAE 30 lubricating oil from leaking and to exclude external contaminants. Its precise dimensions and good resilience are critical for maintaining the pump's power end lubrication system integrity and extended bearing life.

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Product Name

Oil Seal Housing Retainer Gasket for C25, C35, C40, D65 Series and APLEX SC-35

Brand

MYERS

SKU

05059A052

Weight

0.00 LBS 0.05 kg

Width

3.00 (in) 7.6 cm

Height

3.00 (in) 7.6 cm

Depth

0.03 (in) 0.1 cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Oil Seal Housing Retainer Gasket SKU: 05059A052

This Oil Seal Housing Retainer Gasket is a static seal in the power end of Myers Aplex C/D/SC-35 series pumps. It is typically precision-cut from oil-resistant non-asbestos composite fiber material. The gasket fits between the Oil Seal Housing Retainer and the pump casing, effectively preventing the leakage of internal SAE 30 lubricant. Its precise dimensions and good resilience are critical for maintaining the pump's power end lubrication system integrity, ensuring a clean gearbox, and extending bearing life.

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Product Name

Spring, Retainer for C25, C35, C40, D65 Series and APLEX SC-35

Brand

MYERS

SKU

06120A000

Weight

0.01 LBS 0.05 kg

Width

3.00 (in) 7.6 cm

Height

3.00 (in) 7.6 cm

Depth

0.25 (in) 0.6 cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Spring, Retainer SKU: 06120A000

This Retainer Spring is a critical locating element in the power end of Myers Aplex C/D/SC-35 series pumps. It is precisely manufactured from high-elasticity, high-fatigue-strength Spring Steel, ensuring continuous and stable spring force. This spring is typically used to maintain the correct axial position and necessary preload for the oil seal housing or piston rod seal assembly. This precision spring is essential for guaranteeing the sealing integrity and smooth operation of moving components in the pump's power end system, thereby extending the pump's overall service life.

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Product Name

Pony Rod Oil Seal for C25, C35, C40, D65 & APLEX SC-35

Brand

MYERS

SKU

22835A004

Weight

0.01 lbs 0.05kg

Width

1.20 in 3.1cm

Height

1.20 in 3.1cm

Depth

0.22 in 0.6cm

Shipping

Calculated at Checkout

Product Description

Myers Aplex Pony Rod Oil Seal SKU: 22835A004

This Pony Rod Oil Seal is a critical bi-directional dynamic seal in the power end of Myers Aplex C/D/SC-35 series pumps. The sealing lip is precision-molded from highly elastic, oil-resistant Nitrile Rubber (NBR/Buna-N) and housed in a stamped steel case. The seal is designed to prevent crankcase lubricant from leaking into the fluid end while excluding pumped fluid and minor contaminants during the piston rod's reciprocating motion. This seal is essential for maintaining the cleanliness of the power end oil system and extending bearing life.

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