Parts Supply: ZJ30, ZJ40, ZJ45, ZJ50, ZJ70D-2

Introduction

We specialize in the production and supply of high-quality, OEM-matched replacement parts for oilfield drilling rigs, industrial boilers, winches, mud pumps, hydraulic systems, and electrical equipment. Our product range fully covers core components for key equipment models, including ZJ30, ZJ40, ZJ45, ZJ50, ZJ50L, ZJ70D drilling rigs, DQ70, DQ70BS, DQ70BSD drilling rig systems, TDS transmission systems, DZH1/10T, WNS2-1.25-YQ, SZL14-1.0/1.5-70A2 boilers, 75PN horizontal sand pumps, ZJ-30C mud pump groups, and Volvo hydraulic systems. Key products include TDQ(450DBZ) cables, ZJ70D 2-HA-2Z REXROTH handle reversing valves, ZJ40 winch brake operating mechanisms, Volvo 11711074 hydraulic fuel filter cores, and hundreds of other precision components. Every part is manufactured in strict compliance with API (American Petroleum Institute) standards, ISO 9001 quality management system requirements, and original equipment specifications, ensuring perfect compatibility, reliable performance, and long service life in harsh industrial and oilfield environments.

Target User Segmentation & Core Purpose: Our products are tailored to the specific needs of three core user groups: oilfield drilling operation teams, industrial boiler and pump maintenance engineers, and equipment operation managers. For oilfield teams, we solve the critical pain points of prolonged equipment downtime due to mismatched parts, high maintenance costs, and safety risks from substandard components—especially for ZJ series drilling rigs, TDS transmission systems, ZJ-30C mud pump groups, and DQ70 series hydraulic systems. For maintenance engineers, we provide easy-to-install, durable parts that reduce on-site repair time and labor intensity, whether servicing brake systems, hydraulic valves, boiler components, or electrical connectors. For operation managers, our cost-effective solutions help control operational costs while ensuring continuous production. The core purpose of our products is to deliver 1:1 OEM-matched parts that maximize equipment uptime, enhance operational safety, and lower long-term maintenance costs—whether you need a ZJ30 steering power cylinder, a ZJ40 clutch torsion bar, or a WNS2-1.25-YQ boiler burner fixed plate.

Product Overview

Key Product Categories & Matched Equipment Models

Our product portfolio covers a comprehensive range of components for oilfield drilling, industrial boilers, winches, mud pumps, hydraulic systems, and electrical equipment. Each part is strictly matched to specific equipment models to eliminate compatibility risks and ensure seamless replacement. Below are the main product categories and their applicable equipment:

• Drilling Rig Parts: Suitable for ZJ30, ZJ40, ZJ45, ZJ50, ZJ50L, ZJ70D drilling rigs, including steering power cylinder assemblies (ZJ30 D722-33010001), turntables (ZJ-45 driller operation box 106.02.300.00), roller shafts (ZJ-50), clutch torsion bars (ZJ40/2250DB φ700/115.31.04), winch brake operating mechanisms (ZJ40), brake devices (ZJ-70 disc brake flexible coupling A1524, ZJ-50 live end shaft pin L106.02.50.09 φ40*210, ZJ50L open clamp bearing KQ-32), and L-type plug-in threaded joints (ZJ40 QSL-1/4-8).

• Boiler Parts: Applicable to DZH1/10T, WNS2-1.25-YQ, SZL14-1.0/1.5-70A2 boilers, including boiler insurance pins (SZL14-1.0/1.5-70A2), boiler burner fixed plates (WNS2-1.25-YQ L8JF-1), and Leiden GSC-6 pump oil seals (DN25*50*10).

• Pump & Hydraulic Parts: Matching DQ70, DQ70BS, DQ70BSD hydraulic systems, 75PN horizontal sand pumps, ZJ-30C mud pump groups, and Volvo hydraulic systems, including horizontal sand pumps (75PN), mud pump group oil mist devices (ZJ-30C QYW-L15-S1/5400400005), impellers (SH6147A05), hydraulic motors (DQ70BSD 5126000790), counterbalance cylinders (P/N 9705221100), high pressure control valves (140GF6-00, PFF 65-70), handle reversing valves (ZJ70D 2-HA-2Z REXROTH), check valve assemblies (60202-01-01-25-0), check valves (P4600013AA), and valve pot covers (NAH36002-0502).

• Filters & Lubrication Parts: Model-specific and universal filters, including fuel filter core units (Volvo 11711074), filter elements (DQ70BS D0KJL0401028 YAC3000-03), drain filters (AH100101190202), air filters (5400100012), and rotary line filters (ZJ40 SP-06*10).

• Electrical & Control Parts: For drilling rig electrical systems, industrial control equipment, and power supply systems, including TDQ(450DBZ) cables (TD*PWR-E777-86-04-04-B), BX3-200-3P+E-200A-380V hanging aviation plug connectors, FQN24-10ZJ ten-core aviation sockets (pin type), SK-2Z16 PC104 motherboards (SK-PC104), IA100(P-050208-00001) foot throttles, dynamos (873771/24V 35A/0120400708/28V 35A), and clean water pump motors (C060017503).

• Transmission & Bearing Parts: For TDS transmission systems, drilling rig transmission components, including drive motor shaft bearings (TDS NU316ECM/C3 P/N 4301000450), crosshead bearings (430129140061206023), bearings (430104010221200000), bushings (BK-3-6A4, DBS75-2-15), reversing gear intermediate gears (Z=36 P3200002AA), and transmission repair kits (6V4529).

• Brake & Safety Parts: For drilling rig brake systems, including disc springs (PSZ65A 2-06.03), disc brake blocks (BK-2-7A), normally open brakes (WG05211110), and brake device components (ZJ-70, ZJ-50, ZJ50L).

• Fasteners & General Parts: Back pins (DQ70BS T754020506 38×284), connectors (520901140605020000), front bags (2322600/6V5910), mats (230102), sealing rings (DQ70 180×200×9.4 2.4.99.01.001, P1700028AA), torque converter gaskets (6882326), exhaust valves (115-2367), and hoses (HG4-406-75 16Ⅰ-11*23m).

Function Description

Each product is engineered to fulfill the specific functional requirements of its matched equipment, ensuring efficient, safe, and stable operation. The core functions of key product categories are as follows, explained in simple, practical terms:

Drilling Rig & Brake Parts

Steering power cylinder assemblies (ZJ30 D722-33010001) control ZJ30 drilling rig steering, ensuring precise movement. Turntables (ZJ-45 driller operation boxes 106.02.300.00) provide a control interface for driller operations, enabling efficient drilling control. Winch brake operating mechanisms (ZJ40) regulate winch braking, ensuring safe lifting of drilling tools. Brake devices (ZJ-70, ZJ-50, ZJ50L) provide reliable braking force, preventing accidents during drilling operations. Clutch torsion bars (ZJ40/2250DB φ700/115.31.04) absorb vibration during clutch operation, protecting transmission components.

Boiler & Pump Parts

Boiler insurance pins (SZL14-1.0/1.5-70A2) and burner fixed plates (WNS2-1.25-YQ L8JF-1) ensure safe operation of DZH1/10T, WNS2-1.25-YQ, and SZL14 boilers. Leiden GSC-6 pump oil seals (DN25*50*10) prevent oil leakage from boiler pumps. Horizontal sand pumps (75PN) and ZJ-30C mud pump group oil mist devices (QYW-L15-S1/5400400005) handle sand and mud circulation during drilling, ensuring smooth operation. Impellers (SH6147A05) drive pump fluid flow, maintaining pump performance.

Hydraulic & Valve Parts

Hydraulic motors (DQ70BSD 5126000790) and counterbalance cylinders (P/N 9705221100) power DQ70BSD hydraulic systems, enabling precise control of drilling components. High pressure control valves (140GF6-00, PFF 65-70) and ZJ70D 2-HA-2Z REXROTH handle reversing valves regulate hydraulic fluid pressure and direction, ensuring smooth switching of equipment working states. Check valve assemblies (60202-01-01-25-0) and check valves (P4600013AA) prevent fluid backflow, protecting hydraulic components. Valve pot covers (NAH36002-0502) seal valve pots, preventing fluid leakage.

Filters & Electrical Parts

Volvo 11711074 fuel filter core units and DQ70BS filter elements (D0KJL0401028 YAC3000-03) remove impurities from fuel and hydraulic fluid, protecting engines and hydraulic systems from wear. Air filters (5400100012) and drain filters (AH100101190202) maintain air and fluid cleanliness. TDQ(450DBZ) cables transmit power and signals, while BX3-200-3P+E-200A-380V aviation plug connectors and FQN24-10ZJ aviation sockets ensure stable electrical connections. SK-2Z16 PC104 motherboards control industrial equipment, and IA100 foot throttles regulate engine speed.

Transmission & Bearing Parts

TDS NU316ECM/C3 drive motor shaft bearings (P/N 4301000450) and crosshead bearings (430129140061206023) support rotating components, reducing friction and ensuring stable transmission. Bushings (BK-3-6A4, DBS75-2-15) provide support for moving parts, extending component service life. Reversing gear intermediate gears (Z=36 P3200002AA) transfer power in transmission systems, enabling gear reversal. Transmission repair kits (6V4529) provide all necessary parts for transmission maintenance, simplifying repair work.

Structural Features

Our products are designed with a focus on compatibility, durability, and ease of use—directly addressing the common challenges users face with generic parts, such as poor fit, short service life, and difficult installation. Key structural features include:

• 1:1 OEM Compatibility: Every part is manufactured to the exact specifications of the original equipment. For example, ZJ30 steering power cylinders (D722-33010001), ZJ70D REXROTH handle reversing valves (2-HA-2Z), TDS NU316ECM/C3 bearings (4301000450), and Volvo 11711074 filter cores match the original equipment perfectly, allowing direct replacement without modifying the equipment structure or using special tools.

• High-Durability Materials: Key parts use industry-grade materials to withstand harsh conditions—high-strength steel for drive shafts and bearings, wear-resistant rubber for sealing rings and oil seals, and corrosion-resistant materials for electrical connectors. This ensures resistance to wear, corrosion, high temperature, and high pressure, extending part service life.

• User-Friendly Design: We prioritize on-site operation convenience. For example, filter elements (D0KJL0401028 YAC3000-03) and air filters (5400100012) adopt a snap-on design for quick replacement; aviation plug connectors and sockets enable fast electrical connections. Even complex parts like ZJ40 winch brake operating mechanisms have intuitive installation marks, reducing installation time.

• Safety-Critical Design: Parts related to equipment safety—such as boiler insurance pins, normally open brakes (WG05211110), and check valves—adopt multiple safety structures to prevent failure during high-load or emergency operations, protecting operators and equipment.

Applicable Working Conditions

Our products are built to adapt to the harshest industrial and oilfield environments, ensuring stable performance in diverse scenarios. The main applicable working conditions are as follows:

Oilfield Drilling Scenarios

Suitable for onshore and offshore drilling operations (desert, plateau, coastal) with ZJ30, ZJ40, ZJ45, ZJ50, ZJ70D drilling rigs. Products such as clutch torsion bars (ZJ40/2250DB), winch brake operating mechanisms (ZJ40), and mud pump oil mist devices (ZJ-30C) can withstand high temperature, high humidity, dust, vibration, and high pressure, ensuring continuous drilling operations.

Boiler Operation Scenarios

For DZH1/10T, WNS2-1.25-YQ, SZL14-1.0/1.5-70A2 boilers in factories, power plants, and heating facilities. Boiler insurance pins, burner fixed plates, and pump oil seals adapt to high-temperature and high-pressure boiler environments, ensuring safe and efficient operation.

Hydraulic & Pump Scenarios

For DQ70, DQ70BS, DQ70BSD hydraulic systems, 75PN horizontal sand pumps, and ZJ-30C mud pump groups. Hydraulic motors (5126000790), high pressure control valves, and check valves adapt to high-pressure fluid environments, ensuring stable pump and hydraulic system operation.

Electrical & Transmission Scenarios

Suitable for drilling rig electrical systems, TDS transmission systems, and industrial control equipment. TDQ(450DBZ) cables, SK-PC104 motherboards, and NU316ECM/C3 bearings adapt to harsh field environments, ensuring stable power supply, signal transmission, and transmission performance.

Maintenance & Care Recommendations

Proper maintenance and care can significantly extend the service life of parts, reduce equipment downtime, and lower maintenance costs. Below are practical, easy-to-follow recommendations for on-site teams:

Daily Inspection

Check the condition of sealing rings (180×200×9.4, P1700028AA), hoses (HG4-406-75 16Ⅰ-11*23m), electrical connectors (BX3-200-3P+E), and brake components daily. Ensure there is no looseness, leakage, or damage. For oil seals, sealing rings, and bushings, check for aging or cracks—replace them immediately if issues are found to avoid fluid leakage and equipment damage. Inspect boiler insurance pins and brake blocks for wear.

Regular Cleaning & Replacement

Replace Volvo 11711074 fuel filter cores, DQ70BS filter elements (D0KJL0401028 YAC3000-03), and air filters (5400100012) every 25-30 days (or according to equipment operation hours) to maintain performance. Clean impellers (SH6147A05) and sand pumps (75PN) to remove debris, preventing blockages and ensuring pump efficiency. Clean electrical components to avoid contact failure.

Lubrication Maintenance

Apply API-certified lubricating oil to moving parts such as TDS NU316ECM/C3 bearings (4301000450), crosshead bearings (430129140061206023), and clutch torsion bars (ZJ40/2250DB) regularly. Follow the equipment manual for lubricant type and quantity to reduce friction loss and extend part service life. Check disc springs (PSZ65A 2-06.03) and torque converter gaskets (6882326) for wear and replace as needed.

Storage & Handling

Store unused parts in a dry, ventilated, and clean warehouse, away from moisture, dust, and corrosive substances. Precision parts like SK-PC104 motherboards, FQN24-10ZJ aviation sockets, and filter elements should be kept in sealed packaging to avoid damage. When handling heavy parts (e.g., roller shafts, hydraulic motors), use appropriate tools to prevent collision and deformation.

Replacement Standards

Replace parts immediately if they show the following signs: excessive wear (e.g., disc brake blocks BK-2-7A, bushings), deformation (e.g., clutch torsion bars), leakage (e.g., sealing rings), or failure to meet operational requirements (e.g., check valves, boiler insurance pins).

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, providing practical references for users to solve similar technical problems and demonstrating the reliability of our products in real-world scenarios:

Case 1: ZJ70D Drilling Rig Hydraulic Control Failure

Fault Phenomenon: The ZJ70D drilling rig’s hydraulic system failed to switch directions smoothly, disrupting drilling operations. Fault Analysis: Inspection found that the ZJ70D 2-HA-2Z REXROTH handle reversing valve was worn, leading to fluid leakage and unstable control. Solution: Replace the reversing valve with our ZJ70D-specific 2-HA-2Z REXROTH part. After installation, the hydraulic system switched directions smoothly, ensuring normal drilling operation. Key Point: Using OEM-matched hydraulic valves ensures precise control and avoids system downtime.

Case 2: TDS Transmission System Bearing Failure

Fault Phenomenon: The TDS transmission system made abnormal noise and had reduced transmission efficiency. Fault Analysis: The TDS NU316ECM/C3 drive motor shaft bearing (P/N 4301000450) was worn and seized, causing friction and noise. Solution: Replace the bearing with our TDS-specific NU316ECM/C3 part. After installation, the transmission system operated quietly and efficiently. Key Point: Model-matched bearings ensure stable transmission and extend system service life.

Case 3: WNS2-1.25-YQ Boiler Leakage

Fault Phenomenon: The WNS2-1.25-YQ boiler had oil leakage from the pump, leading to reduced boiler efficiency. Fault Analysis: The Leiden GSC-6 pump oil seal (DN25*50*10) was aging and cracked, losing sealing performance. Solution: Replace the oil seal with our boiler-specific DN25*50*10 part. After installation, there was no oil leakage, and the boiler operated at full efficiency. Key Point: Using model-matched seals ensures reliable boiler operation and avoids energy waste.

FAQ (Frequently Asked Questions)

Procurement Reference & Technical Standards

Procurement Reference Standards

To ensure you purchase the right parts for your equipment, follow these simple procurement guidelines:

• Confirm Equipment & Part Details: Provide your equipment model (e.g., ZJ70D, DQ70BS) and the original part number (e.g., 2-HA-2Z reversing valve, D0KJL0401028 filter element) to avoid compatibility issues.

• Verify Performance Parameters: Check the part’s material, size, and working pressure to ensure it matches your equipment’s operating conditions (e.g., high-pressure hydraulic systems, harsh oilfield environments, high-temperature boilers).

• Prioritize Quality & Compatibility: Choose parts that meet API, ISO, or OEM standards to ensure reliability—this reduces the risk of frequent replacements and equipment damage.

Technical Reference Standards

Our products comply with international and industry standards to ensure safety and performance: API 7-1 for drilling rig parts, API 16C for hydraulic components, ISO 9001 for quality management, and OEM specifications for all replacement parts. Every part undergoes strict quality inspection (dimensional testing, material analysis, pressure testing) before leaving the factory, ensuring it meets the technical requirements of your equipment and can work stably in harsh environments.

Call to Purchase

We are dedicated to providing high-quality, OEM-matched replacement parts for oilfield and industrial equipment. Whether you need ZJ series drilling rig parts, WNS2-1.25-YQ boiler parts, TDS transmission components, or Volvo hydraulic filter cores, we have a comprehensive range to meet your needs. Our products offer perfect compatibility, long service life, and professional technical support—helping you reduce equipment downtime, lower maintenance costs, and ensure continuous production. Contact us now to provide your equipment model and part requirements, and we will offer a customized procurement plan and competitive quotation. Choose our parts to keep your equipment running efficiently and reliably, with the peace of mind that comes from using high-quality, compatible components.

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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.