ZJ30/1700CZ, XJ450, GJC45-21, 3NB-1300C Series Supply

Introduction: Tailored Spare Parts for Oilfield Core Equipment

We specialize in providing high-precision, durable spare parts that perfectly match a wide range of oilfield equipment, including crane assemblies (ZJ30/1700CZ), cementing hydraulic systems (GJC45-21), power systems (XJ-80, XJ450, XJ550, XJ650), mud pumps (3NB-1300C), winch assemblies, hydraulic boxes (F-1600, F-1000), remote control systems (FKQ640-7, FKQ800-7F) and more. Our products are engineered to address the critical needs of oilfield operation teams, drilling contractors, and equipment maintenance departments—focusing on solving common pain points such as unplanned downtime, poor part compatibility, and short service life that plague on-site operations.

Core Purpose: Our spare parts are designed to ensure the stable, efficient, and safe operation of oilfield equipment. Whether it’s replacing a worn 2HA-1 two-position three-way valve for ZJ30/1700CZ crane, a 4900550312 double vane pump for GJC45-21 cementing system, or a P166254 torque converter filter for XJ450 power system, each component undergoes strict quality control to meet or exceed original equipment manufacturer (OEM) standards. We aim to minimize maintenance costs, extend equipment service life, and support continuous oilfield drilling, cementing, and well completion operations.

Product Overview

Key Product Categories & Matching Equipment Models

Our product portfolio covers all critical spare parts for oilfield equipment, with a focus on the following core categories and matching models, ensuring 100% compatibility and direct replacement without modification:

• Crane Assembly Parts:适配 ZJ30/1700CZ, including two-position three-way valve (2HA-1 3801950003), air suspension bridge airbag (QN-968 P1700349AA), single air two-position three-way valve (VSP-3301-31P), steering cylinder (ZJ-30K EDF301).

• Cementing Hydraulic System Parts:适配 GJC45-21, including double vane pump (4900550312), single vane pump (4900550039), density transmitter (X04-05-421).

• Power System Parts:适配 XJ-80, XJ450, XJ550, XJ650, including front outrigger cylinder oil seal (XJ01.02.00.00), hydraulic oil filter element (ZSX-160*10), steering power cylinder (100T), auxiliary brake radiator (JH-125kW).

• Mud Pump Parts:适配 3NB-1300C, including cylinder seat bolts (M30*2*138-107.11.110.41-1), fluid end assembly (NJ-05.00), adjustable flexible tube clamp (KRQ 203.2-254).

• Winch Assembly Parts:适配 XJ650, including dryer (AD-2), radiator assembly (JH-125KW XJ650-AA89-112), two-position three-way reversing valve (23JQ-L15), push disc clutch airbag (ATD218H A20040021191).

• Hydraulic Box Parts:适配 F-1600, F-1000, including safety valve takeover assembly (107.04.117.00-4), hexagonal wrench (400101091700000000), angle stop valve (JZR3-L8), main bearing (3G4053156H), oil seal (AH36001-03.08A).

• Remote Control System Parts:适配 FKQ640-7, FKQ800-7F, including remote control console pneumatic pump (QYB-40-60L), three-position four-way rotary valve (34ZS21-25), capsule (4807101020).

• Other Core Parts: Air control valve parts (XJ350, XJ650), main roller brake parts (ZJ30, XJ650), plunger parts (QZB50-13, GJQ100-30Ⅱ), casing centralizers, tool joints, and more.

Function Description

Each spare part is designed to perform specific critical functions, directly supporting the normal operation of oilfield equipment and avoiding operational failures caused by component damage. Below are the core functions of key product categories:

Valve Series (2HA-1, 23JQ-L15, VSP-3301-31P)

Control the flow direction, pressure, and flow rate of hydraulic oil or air in the equipment system, ensuring precise operation of crane lifting, winch winding, and hydraulic mechanism movement. For example, the 2HA-1 two-position three-way valve for ZJ30/1700CZ crane accurately adjusts the hydraulic pressure of the crane’s lifting mechanism, preventing overload or unstable operation.

Pump Series (4900550312, 4900550039)

As the power core of the hydraulic system, the vane pump (double vane pump 4900550312 and single vane pump 4900550039) for GJC45-21 cementing system provides stable hydraulic power for cementing operations, ensuring uniform cement injection and improving cementing quality. The pump’s high-pressure resistance and low noise design adapt to the harsh working environment of oilfields.

Filter Series (P166254, ZSX-160*10, LXZ-100*80FS)

Filter impurities such as metal particles, dust, and oil sludge in hydraulic oil, steering fluid, and engine oil, protecting key components (such as torque converters, hydraulic valves, and engines) from wear and extending their service life. The P166254 torque converter filter for XJ450 power system effectively filters impurities in the torque converter oil, ensuring smooth power transmission.

Seal & Friction Parts (Oil Seals, Brake Pads, Friction Plates)

Prevent oil leakage in hydraulic systems (such as XJ250 oil seal PG120*150*14mm) and ensure reliable braking performance (such as JC28A-02.07 main roller brake pads for ZJ30). The air clutch friction plates (LT500*125, LT600*125) ensure stable power transmission of the clutch, avoiding slippage during high-load operation.

Structural Features

Our spare parts adopt advanced structural design and high-quality materials, combining durability, compatibility, and easy installation to meet the harsh working conditions of oilfields. Key structural features include:

High-Strength Material Selection

All metal parts (such as cylinder seat bolts M30*2*138-107.11.110.41-1, brake return spring 416757-02) are made of high-quality alloy steel,经过 heat treatment and precision machining to achieve high tensile strength, corrosion resistance, and wear resistance. Non-metal parts (such as oil seals, airbags) are made of high-temperature and oil-resistant rubber (such as nitrile rubber, fluorine rubber) to ensure long service life in high-temperature, high-pressure, and oil-containing environments.

Precision Machining & OEM Compatibility

Each part is processed by CNC precision machine tools, with strict control of dimensional tolerance (complying with ISO 9001 quality standards) to ensure 100% compatibility with original equipment. There is no need to modify the equipment during installation, reducing maintenance time and labor costs. For example, the XJ450 hydraulic six-way valve is designed according to the original equipment’s structural parameters, directly replacing the old valve without adjusting the hydraulic pipeline.

Sealed & Protective Structure

Valves, pumps, and other components adopt integrated sealed structures (such as O-ring seals 130*5.7 E301.2.17.08) to prevent oil leakage and dust entry. The air suspension bridge airbag (QN-968 P1700349AA) for ZJ30/1700CZ crane adopts a multi-layer rubber structure with strong pressure resistance and good air tightness, adapting to the vibration and impact during crane operation.

Easy Maintenance Design

Parts such as filters and oil seals are designed with quick-disassembly structures, allowing maintenance personnel to replace them on-site in a short time without professional tools. For example, the LXZ-100*80FS main engine hydraulic steering oil filter can be disassembled and replaced within 15 minutes, minimizing equipment downtime.

Applicable Working Conditions

Our spare parts are specially designed for the harsh working environment of oilfields, and are applicable to various complex working conditions, including:

• Onshore Oilfield Drilling: Suitable for ZJ30/1700CZ crane, 3NB-1300C mud pump, XJ450/XJ650 power system and other equipment, adapting to high temperature ( -20℃ ~ 80℃ ), high humidity, and dusty working environments.

• Cementing Operations: GJC45-21 cementing hydraulic system parts (such as 4900550312 double vane pump) are suitable for high-pressure cementing operations, with pressure resistance up to 70MPa, ensuring stable operation under high-pressure working conditions.

• Offshore Oilfield Operations: Parts with corrosion-resistant structures (such as stainless steel valve bodies, anti-corrosion oil seals) are suitable for offshore high-salt, high-humidity environments, preventing component corrosion and extending service life.

• Low-Temperature and High-Altitude Operations: Spare parts such as steering power cylinders and oil seals are designed with low-temperature resistance, adapting to working environments in cold regions (temperature as low as -40℃ ), ensuring no oil leakage or component failure.

• High-Load Continuous Operations: Parts such as winch radiator assemblies (JH-125KW XJ650-AA89-112) and brake pads (JC28A-02.07) are designed for long-term high-load operation, with strong wear resistance and heat dissipation performance, avoiding failures caused by overheating.

Maintenance & Care Recommendations

Proper maintenance and care can significantly extend the service life of spare parts, reduce maintenance costs, and ensure the stable operation of equipment. Below are targeted maintenance recommendations for different types of parts:

Filter Series Maintenance

• Check the filter pressure gauge regularly (once a week). If the pressure exceeds the rated value (usually 0.3MPa), replace the filter element in time to avoid blocking the oil circuit and affecting equipment operation.

• Replace the filter element every 200 working hours or 3 months (whichever comes first). For harsh working environments (such as high dust), shorten the replacement cycle by 30%.

• When replacing the filter element, clean the filter housing to remove accumulated impurities, and ensure the seal ring is intact to prevent oil leakage.

Valve & Pump Series Maintenance

• Check the valve and pump for oil leakage every 15 working days. If leakage is found, replace the seal ring or gasket in time (such as O-ring 130*5.7 E301.2.17.08).

• Add hydraulic oil that meets the OEM standard (such as 46# anti-wear hydraulic oil) and keep the oil level within the specified range. Replace the hydraulic oil every 6 months, and clean the oil tank at the same time.

• For vane pumps and gear pumps, avoid idling for more than 5 minutes to prevent dry friction and damage to the pump core.

Seal & Friction Parts Maintenance

• Check the oil seal for aging, cracking, or deformation every month. If any damage is found, replace it immediately to avoid oil leakage and damage to other components.

• The brake pads and friction plates should be checked every 100 working hours. If the wear thickness exceeds 3mm, replace them in time to ensure braking performance.

• Apply a small amount of lubricating oil to the friction surface of the clutch friction plate regularly to reduce wear, but avoid excessive oil application to prevent slippage.

General Maintenance Principles

After each operation, clean the surface of the parts to remove dust, oil stains, and mud. Store spare parts in a dry, ventilated, and dust-free warehouse, avoiding direct sunlight and contact with corrosive substances. For parts that have not been used for a long time (more than 6 months), check the seal performance and flexibility before installation.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, providing practical reference for users to solve common equipment problems using our spare parts:

Case 1: ZJ30/1700CZ Crane Lifting Instability

Fault Phenomenon: During the lifting operation of the ZJ30/1700CZ crane, the lifting mechanism was unstable, and the boom could not stay in the specified position, accompanied by slow lifting speed.

Fault Diagnosis: After inspection, the 2HA-1 two-position three-way valve (part number 3801950003) was found to be worn internally, resulting in unstable hydraulic pressure control and oil leakage.

Repair Solution: Replace the original valve with our 2HA-1 two-position three-way valve (100% OEM compatible). After replacement, the hydraulic pressure of the crane lifting mechanism was stable, the boom could stay in the specified position, and the lifting speed returned to normal. The fault was completely solved, and the crane resumed normal operation.

Case 2: GJC45-21 Cementing System Hydraulic Pressure Insufficiency

Fault Phenomenon: During the cementing operation of the GJC45-21 cementing system, the hydraulic pressure could not reach the rated value (35MPa), resulting in uneven cement injection and affecting cementing quality.

Fault Diagnosis: After testing, the 4900550312 double vane pump of the cementing hydraulic system was found to have worn vanes, resulting in reduced pump displacement and insufficient pressure.

Repair Solution: Replace the double vane pump with our 4900550312 model. After installation and debugging, the hydraulic pressure of the cementing system reached the rated value, the cement injection was uniform, and the cementing quality met the on-site requirements. The system has been running stably for more than 3 months without recurrence of the fault.

Case 3: XJ650 Main Roller Brake Failure

Fault Phenomenon: The XJ650 winch main roller brake failed during operation, and the roller could not be braked in time, posing a safety hazard.

Fault Diagnosis: Inspection found that the WCB224 eaton brake return spring (part number 416757-02) was broken, resulting in the brake pad not being able to reset and the brake failing.

Repair Solution: Replace the brake return spring with our 416757-02 model. After replacement, the brake reset normally, the main roller could be braked quickly and reliably, and the safety hazard was eliminated. The brake has been working normally for 2 months.

Frequently Asked Questions (FAQ)

Procurement Guide & Technical Support

We are committed to providing high-quality oilfield spare parts and professional technical support to help you solve equipment maintenance problems and ensure continuous operation. Whether you need a single part (such as P166254 torque converter filter, ZSX-160*10 hydraulic oil filter element) or a batch of spare parts for equipment maintenance, we can provide customized supply solutions.

Our spare parts have passed strict quality inspection (including material inspection, dimensional inspection, and performance testing) to meet the requirements of API (American Petroleum Institute) and ISO 9001 quality management system, ensuring reliable quality and stable performance. We focus on long-term cooperation with customers, providing competitive prices and efficient supply services.

If you need to purchase oilfield spare parts, or have questions about product selection, installation, or maintenance, please contact us. Our professional team will provide you with one-on-one technical consultation and procurement guidance, helping you choose the most suitable spare parts and solve on-site technical problems. Choose our spare parts, and you will get reliable quality, perfect compatibility, and professional support—your trusted partner for oilfield equipment maintenance and operation.

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Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.