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.
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DL Safe-Set Hammerless Liner RetainerBlack-JAK Core Technology Analysis: The Engineering Basis of Superior Performance
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DL Safe-Set Hydraulic Liner Bushing PullerFor a long time, the maintenance of the hydraulic end of the mud pump has been limited by an outdated and inefficient operation process.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
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DL Safe-Set Self-Align Piston RodThe 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
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DL Safe-Set Hydraulic Torque WrenchThe 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
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DL Safe-Set Rig-Repack Washpipe Cartridge 5000 PsiThe 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
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DL Safe-Set Rig-Repack Washpipe Cartridge 7500 PsiTo 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.
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DL Rapid-Fit Piston Rod SystemThe 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
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DL Rapid-Fit Hammerless Liner RetainerThe 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
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DL Rapid-Fit Hammerless Discharge StrainerThe 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.
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DL Rapid-Fit Quick-Change Wash Pipe SystemThe 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.
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DL Rapid-Fit Valve Seat PullerCore 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 |

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.
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

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
Packaging and Shipping
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Packaging |
Standard export plywood case or carton. |
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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.

Our Certificates




FAQ
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.
