Your Professional Dragon Mud Pumps 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.

 

 
  • DRAGON 440HP Mud Pump
    The standard configuration is equipped with a Detroit Series 60, Tier 3 diesel engine. Paired with this legendary engine is an Allison HT750DR transmission, renowned for its smooth and reliable power
  • DRAGON 660HP Mud Pump
    This table provides a quick technical overview of the entire pump package, enabling potential buyers to quickly assess its compatibility with existing infrastructure (such as power, connections,
 

Parameter

 

 

Rated Input Power

660 HP (492 kW)

Engine

Detroit Diesel Series 60 14.0L Tier III (Rated 630 HP @ 2100 RPM)

Transmission

Allison 6061 Straight-Through (Wet Housing)

Stroke Length

8.5 inches (215.9 mm)

Maximum Pump Speed

147 SPM (Strokes Per Minute)

Gear Ratio

5.05:1

Discharge Line Connection

4 inches

Suction Line Connection

6 inches

Standard Components

Pulsation Dampener, Shear Pin Safety Valve, Mud Pressure Gauge, Belt-Driven 5x4 Centrifugal Charge Pump, Integrated Control Console

 

DRAGON 440HP Mud Pump

 

Advantages of Dragon Mud Pumps
  • Simple structure for easy maintenance and disassembly
  • Smooth operation, minimal vibration, and low noise
  • It can deliver high concentration and high viscosity suspended slurry
  • The drilling fluid flow is stable. It has no over-current, pulsation, and remains stirred.
  • The discharge pressure is not proportional to the speed. The displacement can be adjusted easily by the shifting mechanism or motor.
  • The pumps usually have a high self-absorption capability, and they can suck the liquid directly without the bottom valve.

 

Applications of Dragon Mud Pumps
 
 
 

Oil and Gas Exploration

This is its core application. The pump is explicitly defined as a "mud pump" for drilling operations, particularly suitable for: Shallow well drilling operations, providing the circulating power needed to cool, lubricate, and carry cuttings for the drill bit.

 
 

Well Services and Workover

Its reliable pressure and flow output make it an ideal choice for well intervention, well killing operations, and hot washing operations. The inclusion of 1502 high-pressure swivel joints in some used equipment packages also strongly suggests its history of use in high-pressure well service lines.

 
 

Mining and Resource Extraction

The robust fluid end design, especially the optional ultra-wear-resistant zirconia ceramic liners, makes this pump highly suitable for handling the abrasive slurries and pulp commonly encountered in mining operations.

 
 

Heavy Civil and Industrial Pumping

Leveraging its high power and high-pressure capabilities, the pump is equally applicable to large-scale long-distance water transfer, pipeline pressure testing, proppant pumping for hydraulic fracturing, and other industrial applications requiring high-pressure fluid transfer.

 

 

Types of Dragon Mud Pumps Liner Materials

 

 

Liner Type

Inner Sleeve Material

Outer Shell Material

Bore Hardness (HRC)

Typical Service Life (Hours)

Bore Surface Finish (RMS)

Bi-Metal (High-Chrome) Liner

High-Chrome Iron (Cr 26-28%)

Forged Carbon Steel

60-69

800 - 1,000

16-20

Ceramic Liner (Alumina)

High-Density Alumina Ceramic

Forged Carbon Steel

> 74

~ 3,000

8

Zirconia Liner

Zirconia-Based Ceramic

Forged Carbon Steel

> 90

> 5,000

4-8

 

Daily Maintenance of Dragon Mud Pumps
 
  • Check the oil level at the power end after stopping the pump.
  • Observe the working conditions of the cylinder liner and piston. If the leaked mud is found to exceed the normal limit, new cylinder liners and pistons must be replaced.
  • Check the cylinder liner cavity, if there is a large amount of mud precipitation, it should be cleaned.
  • Check whether the water in the water tank of the spray pump is sufficient and replenish it in time, replace the cooling water when it is contaminated, and clean the water tank at the same time.
DRAGON 440HP Mud Pump suppliers

 

DRAGON 440HP Mud Pump factory
  • Check whether the inflation pressure of the exhaust air bag meets the requirements.
  • Regularly check the reliability of the safety valve.
  • Loosen the piston rod clamp every day, turn the piston about a quarter of a turn, and then tighten the clamp.
  • Before tightening the cylinder head and valve cover, fill the thread with grease first, and check whether there is any looseness every 4 hours.

 

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.

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Our Certificates

 

 

QQ20260104090357
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QQ20260104085459

 

FAQ

 

Q: What are the main parts of Dragon mud pumps?

A: Dragon mud pumps mainly consist of a power end, fluid end, crankshaft, crosshead, piston, valve, and liner. The power end provides motion, while the fluid end controls pressure and flow. Dragon mud pumps use heavy-duty components to ensure stable operation and long service life during drilling.

Q: Are Dragon mud pumps suitable for high-pressure drilling?

A: Yes, Dragon mud pumps are designed to handle high-pressure drilling conditions. Their fluid ends and liners are built to withstand strong internal pressure. Dragon mud pumps are often used in deep wells where stable and reliable pressure is required for safe drilling operations.

Q: Can Dragon mud pumps handle abrasive mud?

A: Dragon mud pumps are suitable for pumping abrasive drilling mud with sand and solid particles. Wear-resistant liners and valves help protect key components. Dragon mud pumps are commonly used in harsh drilling environments where mud quality can cause high wear on equipment.

Q: Can Dragon mud pumps run continuously?

A: Dragon mud pumps are designed for continuous operation under heavy load. Their power end structure supports long working hours without overheating. Dragon mud pumps are often used in 24-hour drilling projects, provided that lubrication and routine inspections are properly maintained.

Q: What safety features do Dragon mud pumps have?

A: Dragon mud pumps feature strong housings, reliable sealing systems, and pressure-resistant fluid ends. These features help prevent leaks and sudden failures. When installed and operated correctly, Dragon mud pumps provide a safe and stable pumping solution for high-pressure drilling environments.

Q: How are Dragon mud pumps installed on drilling rigs?

A: Dragon mud pumps are usually installed on solid foundations or skid bases. Proper alignment with the motor or engine is important. Dragon mud pumps are connected to mud tanks and pipelines through high-pressure connections to ensure stable and vibration-free operation.

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

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