Your Professional DL Quick Change Technologies Supplier

 

We are a certified manufacturer of mud pumps, plunger pumps, and fracturing pumps, supplying complete pump systems, accessories, and centrifuges for oil drilling, mining, and industrial use. With API 7K and ISO 9001 certification, advanced CNC machining, and full in-house testing, we deliver reliable equipment for high solids, high pressure, and harsh environments. Our products are widely applied in oil & gas drilling, mining slurry transport, environmental engineering, and high-pressure fracturing operations.


Quality Control
Multi-axis CNC machining and complete testing systems ensure consistent quality, verified performance, and full traceability for every critical component.

 

Global Market Experience
Strong performance in North America, Russia, and the Middle East supports reliable supply and service.

 

High-Quality Service
From pre-sales engineering analysis to installation, training, and after-sales maintenance, we help customers reduce risk, improve uptime, and extend equipment service life.

 

 
  • DL Safe-Set Hammerless Liner Retainer
    Black-JAK Core Technology Analysis: The Engineering Basis of Superior Performance
  • DL Safe-Set Hydraulic Liner Bushing Puller
    For a long time, the maintenance of the hydraulic end of the mud pump has been limited by an outdated and inefficient operation process. Traditionally, the removal of the cylinder liner requires a
  • DL Safe-Set Self-Align Piston Rod
    The HydrA-LIGN piston rod assembly is a multi-component precision combination that introduces a flexible connection point between the piston rod and the pony rod (Pony Rod) that allows for small
  • DL Safe-Set Hydraulic Torque Wrench
    The torque applied by hammering is instantaneous, huge and completely uncontrollable. This imprecise force causes long-term, cumulative damage to the equipment. Operators cannot accurately determine
  • DL Safe-Set Rig-Repack Washpipe Cartridge 5000 Psi
    The core of the Blak-Jak system is an integrated self-contained unit (cartridge) design. This innovative configuration pre-integrates the flushing tube, seals, bearings, and related components into a
  • DL Safe-Set Rig-Repack Washpipe Cartridge 7500 Psi
    To maintain absolute reliability under extreme working pressures of 7,500 PSI, the system has been comprehensively upgraded in terms of materials and processes for key components.
  • DL Rapid-Fit Piston Rod System
    The hydraulic end of the mud pump is the heart of the entire drilling cycle system, and the piston rod system is one of its most critical weak links. The traditional flange and clamp connection
  • DL Rapid-Fit Hammerless Liner Retainer
    The core innovation of the P-Quip system lies in its unique locking mechanism. It employs a powerful, precisely calibrated spring assembly to deliver constant and optimal locking force. Throughout
  • DL Rapid-Fit Hammerless Discharge Strainer
    The P-Quip system tackles the core challenges of NPT (Non-Production Time), with its most notable value being the reduction of filter replacement or cleaning time to under 5 minutes.
  • DL Rapid-Fit Quick-Change Wash Pipe System
    The P-Quip system's core innovation lies in its built-in cylinder. This design utilizes standard compressed air (100-150 psi) readily available to drilling crews as its power source.
  • DL Rapid-Fit Valve Seat Puller
    Core principle: The Kwik-Pull is a hydraulic tool designed to overcome the enormous clamping force in the fluid end module of a mud pump. This clamping force originates from valve hammering action
 

Parameter

 

 

Features (Feature)

Traditional OEM System (Conventional OEM System)

MISSION Blak-Jak system (MISSION Blak-Jak System)

Average change-out time (Avg. Change-Out Time)

2-4 hours

<15 minutes

Maintenance Location (ML)

High Top Drive (At the Swivel)

Rig floor (On the rig floor)

Personnel Required

2-3 persons

1-2 persons

Key Tools

Hammer, special wrench, hydraulic tools

Special wrench bar (Spanner Bar)

Key Safety Risks

Impact injuries, falls from height, falling objects

The hammer risk has been eliminated and the time spent working at height has been greatly reduced

 

DL Safe-Set Hammerless Liner Retainer

 

Advantages of DL Quick Change Technologies

Reduced Changeover Time
Quick Change Systems streamline the process of switching from one task to another, saving valuable time that would have otherwise been wasted on setups and adjustments.

 

Increased Flexibility
With the ability to swiftly change tools and components, your production line becomes more adaptable to different product variations, leading to increased output and flexibility in manufacturing.

 

Enhanced Quality Control
Implementing these systems can improve the accuracy and consistency of your products by ensuring that the setup is precise and errors are minimized during changeovers.

 

Cost Savings
By reducing downtime and increasing productivity, Quick Change Systems can help you save on operational costs in the long run, making your manufacturing processes more efficient and cost-effective.

 

 

Applications of DL Quick Change Technologies

The DL quick change technologies is tailored for the following most demanding drilling operations:

  • Ultra-deep and deep oil and gas exploration
  • High pressure shale gas/tight oil fracturing
  • Managed Pressure Drilling (MPD)
  • High temperature and high pressure (HTHP) well
DL Rapid-Fit Piston Rod System

 

Comparison of Different DL Quick Change Technologies

 

 

Characteristics/Advantages

P-Quip high performance quick change system

Premium Sur-Lock® system

NOV Blak-JAK™ system

Traditional clamp system

Piston replacement time

<5 minutes

Fast, but manual

Fast

Very slow, hours

Clamping mechanism

Hydraulic drive, spring force maintained

Mechanical "taper lock"

Fluid drive

Manual clamp/brace

Clamping force control

Automatic, precise, repeatable

Depends on operator manual torque

Voluntarily

Uncontrollable and error-prone

China mechanism

Automatic alignment

Claim of self-righteousness

Self-orientation

No, it's completely manual

Safety

Hamless operation

No hydraulic pump required, but manual tools are still required

Hamless operation

A sledgehammer is required

System integration

Complete hydraulic end ecosystem (cylinder liner, valve cover, etc.)

Single component, interchangeable with P-Quip

NOV system integration

Not have

Core Selling Proposition (USP)

Precise automatic clamping force, proven reliability, and complete system solutions

Simplicity without a hydraulic pump

NOV brand and channel

Low initial cost

 

Ordering Process

 

 

Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.

 

Packaging and Shipping

 

 

Packaging

Standard export plywood case or carton.

Shipping

DHL, TNT, UPS, FEDEX, and EMS, SF. Air and sea transportation are also supported.

 

Our Factory

 

Shijiazhuang Dong Li Petroleum Machinery Co., Ltd. (DLSY) was founded in 2008 and is headquartered in Shijiazhuang, Hebei Province, China.

p2025092315351678c99.jpg (800×613)

 

Our Certificates

 

 

QQ20260104090357
p20251022172541a0bae.jpg (1600×2260)
p20251022172550accfb.jpg (1600×2260)
QQ20260104085459

 

FAQ

 

Q: What is a DL rapid-fit piston rod system?

A: A DL rapid-fit piston rod system is a quick-install solution designed for hydraulic and pumping equipment. It allows fast assembly and removal of piston rods without complex tools. The DL rapid-fit piston rod system helps reduce downtime, improves maintenance efficiency, and ensures reliable alignment during operation.

Q: Is a DL rapid-fit piston rod system easy to install?

A: Yes, a DL rapid-fit piston rod system is designed for easy installation. It requires fewer tools and less technical effort than traditional systems. With clear fitting steps, the DL rapid-fit piston rod system allows operators to complete assembly safely and correctly in a short time.

Q: What materials are used in a DL rapid-fit piston rod system?

A: A DL rapid-fit piston rod system is usually made from high-strength alloy steel. This ensures durability, wear resistance, and long service life. The materials used in the DL rapid-fit piston rod system support heavy loads and demanding operating conditions.

Q: Is a DL rapid-fit piston rod system suitable for high-pressure applications?

A: A DL rapid-fit piston rod system is suitable for high-pressure applications when properly matched to system requirements. Its secure connection design ensures stable performance. The DL rapid-fit piston rod system maintains strength and alignment even under continuous pressure.

Q: Can a DL rapid-fit piston rod system be reused?

A: Yes, a DL rapid-fit piston rod system can be reused if it is properly inspected and maintained. Its durable design supports multiple installation cycles. Reusability makes the DL rapid-fit piston rod system cost-effective over long-term use.

Q: Can a DL rapid-fit piston rod system handle heavy loads?

A: A DL rapid-fit piston rod system is designed to handle heavy loads within its rated capacity. High-strength materials support demanding work conditions. This makes the DL rapid-fit piston rod system suitable for industrial and oilfield applications.

Shijiazhuang Dongli Petroleum Machinery Co., Ltd. is one of the most professional dl quick change technologies manufacturers and suppliers in China, featured by quality products and low price. Please rest assured to buy CE approved dl quick change technologies made in China here from our factory. Contact us for quotation.

Send Inquiry