Parts for ZJ30/ZJ40/ZJ50/ZJ70D Drills, DQ70BSD Top Drives (430110010304400000, 7N7078, 500X7G)

Introduction

We specialize in manufacturing and supplying high-precision, OEM-compatible industrial spare parts, engineered to fit and optimize the performance of a wide range of heavy-duty industrial equipment across oil drilling, hydraulic systems, boiler operations, and electrical control sectors. Our comprehensive product portfolio covers core components for ZJ series drilling rigs (ZJ30, ZJ40, ZJ50, ZJ70D), including their winches, turntables, braking devices, and well control systems; DQ70BSD/DQ70BS top drives; hydraulic cat heads; boiler systems (EO-154); and electrical components (dynamos, circuit breakers). Key products include Bearing 430110010304400000, Piston Ring 7N7078, O-RING MAIN SHAFT 500X7G, ZJ50 Valve Group BK-T-1, and DQ70BSD Outer Ring 9702020211. Every part is produced in compliance with international industry standards (API 7 for drilling equipment, ISO 9001 for quality management, IECEx for explosion-proof components, and GB/T 19001-2008 quality management standards), adhering strictly to OEM dimensional and performance specifications. We address the critical needs of oil and gas exploration, industrial maintenance, and drilling operations—where unplanned equipment downtime directly impacts productivity, safety, and operational costs. Our components are engineered to withstand harsh industrial conditions, ensuring reliable performance and extended service life for critical machinery.

Core Purpose & Target User Needs

Target User Segments

Our spare parts are tailored to serve three core user groups with distinct, specialized needs: 1) Oil drilling companies operating ZJ series rigs (ZJ30, ZJ40, ZJ50, ZJ70D), DQ70BSD/DQ70BS top drives, ZJ50 hydraulic cat heads, ZJ70D turntables, and well control systems; 2) Industrial maintenance teams responsible for braking devices (F021-06080002), hydraulic components (Rexroth valves, high-pressure filters), electrical systems (dynamo 120689543/24V140A, circuit breakers), boiler systems (EO-154), and vertical sewage pumps (SP40092A05); 3) Procurement departments and equipment distributors seeking reliable, cost-effective spare parts that match OEM specifications, with access to technical support for installation, troubleshooting, and maintenance—especially for critical components that directly impact equipment safety, operational efficiency, and compliance with industry standards.

Core Purpose

The primary goal of our industrial spare parts is to eliminate unplanned equipment downtime, extend machinery service life, and ensure safe, consistent operation in harsh industrial environments. We directly solve the top pain points of our users—including frequent part wear (friction discs, piston rings, bearings), mismatched components causing system failure, difficulty sourcing OEM-compatible parts for specialized equipment (e.g., DQ70BSD top drives, ZJ series rigs), complex maintenance processes, and lack of reliable technical guidance—by delivering precision-manufactured parts that fit seamlessly with original equipment. Our parts balance durability, compatibility, and cost-effectiveness, helping users reduce long-term maintenance costs while maximizing operational efficiency and safety across drilling, hydraulic, boiler, and electrical control applications. We prioritize compliance with global industry standards, ensuring our products meet the rigorous requirements of high-demand industrial settings.

Product Overview

Key Product Categories & Models (with Equipment Compatibility)

Our product range covers all critical components required to keep your industrial equipment running efficiently, with clear compatibility to help you quickly identify the right part for your needs. Below are the core categories, key models, and their specific equipment fits:

• Bearings & Mechanical Components: Bearing 430110010304400000, Turntable ZJ70D ZP375 Turntable Bushing (2 3/8″-8 5/8″), Winch Drive Shaft ZJ-30 Lower Drive Shaft 2261HH L=960, Turntable Cat Head Shaft ZJ50, Hydraulic Cat Head Guide Wheel YM-16II, Double Sprocket P3500011AA, Pin P2000657AA

• Valves & Valve Components: Valve Group ZJ50 BK-T-1, VSP-3301-31 Single Air Two Position Three Way Valve, Main Regulator Valve Spool 6839010, R431005698/P61184-0/7P-5S Rexroth Valve, Solenoid Valve Switch 23018829, Valve Pin 6838442

• Seals & Gaskets: O-RING MAIN SHAFT (Part Number: 500X7G), O-RING ZC258×53 (GB34521-92), Steering Clutch Seal Ring 6P5317, Cylinder Liner Seal AH1001010504, Gasket AH0801010305

• Piston & Piston Components: Piston Ring 7N7078 (Height: 0.64CM), Piston 9Y7212

• Drilling Rig Core Components: Outer Ring DQ70BSD 9702020211, Tooth Board DQ70BSD 9703531001, Tooth Board ZJ70 Φ140 9703531001, Well Control Pipe Rack 1″ 35MPa 6m 1×10root, Rig Moving Pawl Mechanism ZY100007-00, Back Bag 1176620/8C5799

• Braking & Safety Components: Braking Device F021-06080002, Friction Disc W27-07-901, 336WCB2 Eaton Auxiliary Brake Mounting Flange Kit 513985-01

• Pumps & Pump Components: Vertical Sewage Pump Housing SP40092A05, SL30110 Volute Liner

• Filters & Filter Components: Two-Way Reversible Filter Element ZJ50 LH0660D-BH3HC, High Pressure Filter ZJ70D PSK FAX-63×10, Filter Element 129-0373

• Hoses & Fittings: SK-2Z11 High Pressure Hose Line 60MPa 25m, Bulkhead Straight Fitting JB974, Union Nut QGL.06/QGL.05 H62, COUPLING STEEL FLUCH-FACED (FF-752-12FB G3/4; Part Number: 5126050040)

• Electrical & Control Components: Dynamo 120689543/24V140A, Overload Relay FKQ3204, Wave Radar C050058974, Light Bulb 015W 63V ROSSHill SCR, DW40C0805wg48000043 Speed Switch, CIRCUIT BKR E17-1008-020, Cable Assembly ZJ40 CJ6000(F)40000, Boiler EO-154 High Voltage Line

• Fastening & Locking Components: Lock Washer BKD-11-D1, Round Nut DQ70BS T754031533 M38×1.5, SPRING LOCKING (Part Number: 36001-0413), Spring P9000047AA, 9L6639 Belt

• Auxiliary Components & Spares: CMD-3A-111 Rig Spares, Adapter AH1001012113, Floating Water Jacket Assembly W36-11-314

Function Description

Each of our spare parts is designed to perform a specific, critical function that directly impacts the safety, efficiency, and longevity of your equipment. Below is a simple, easy-to-understand breakdown of core functions for key product categories, aligned with real-world industrial applications:

1. Bearings & Mechanical Components

Bearing 430110010304400000 reduces friction between moving parts in rig components (such as turntables and winches), ensuring smooth operation and extending component life. The ZJ30 Winch Lower Drive Shaft 2261HH L=960 transmits power to ZJ30 rig winches, enabling stable lifting and lowering of drilling equipment. The ZJ70D Turntable Bushing (2 3/8″-8 5/8″) supports turntable rotation, reducing wear and ensuring precise drilling alignment. The ZJ50 Hydraulic Cat Head Guide Wheel YM-16II guides the cat head cable, preventing tangling and ensuring safe operation. The Double Sprocket P3500011AA transfers power in rig transmission systems, ensuring efficient power distribution.

2. Valves, Pumps & Filters

The ZJ50 Valve Group BK-T-1 controls hydraulic fluid flow in ZJ50 rig systems, enabling precise operation of winches and brakes. The R431005698 Rexroth Valve regulates hydraulic pressure, protecting system components from overpressure damage. The ZJ50 Two-Way Reversible Filter Element LH0660D-BH3HC removes contaminants from hydraulic fluid, maintaining fluid cleanliness and protecting pumps and valves. The ZJ70D High Pressure Filter FAX-63×10 filters fluid in high-pressure systems, ensuring reliable performance. The Vertical Sewage Pump Housing SP40092A05 houses sewage pump components, ensuring efficient fluid transfer in industrial applications.

3. Drilling Rig & Braking Components

The DQ70BSD Outer Ring 9702020211 secures top drive components, preventing loosening from vibration during drilling. The DQ70BSD/ZJ70 Tooth Boards (9703531001) enhance drilling efficiency by providing stable contact with drilling tools. The Braking Device F021-06080002 ensures reliable stopping power for rig systems, enhancing operational safety. The W27-07-901 Friction Disc provides consistent friction for brake systems, enabling smooth and safe braking. The Well Control Pipe Rack 1″ 35MPa 6m 1×10root supports well control operations, ensuring safe and efficient drilling fluid transfer.

4. Electrical & Auxiliary Components

The Dynamo 120689543/24V140A generates electrical power for rig electrical systems, ensuring reliable operation of lights, controls, and other electronic components. The Overload Relay FKQ3204 protects electrical motors from overcurrent, preventing damage. The Wave Radar C050058974 monitors drilling operations, providing real-time data for precise control. The EO-154 Boiler High Voltage Line transmits high-voltage power to boiler systems, ensuring stable operation. The Cable Assembly ZJ40 CJ6000(F)40000 connects electrical components in ZJ40 rigs, ensuring reliable signal and power transmission.

Structural Features

Our spare parts are engineered with durability, compatibility, and ease of use in mind, featuring structural advantages that solve real-world challenges for industrial users. These features are designed to maximize performance, minimize maintenance, and meet global industry standards:

1. OEM-Level Precision & Compatibility

All parts are manufactured to match the exact dimensional and performance specifications of original equipment, ensuring seamless integration without modifications. For example, the DQ70BSD Outer Ring 9702020211 is precision-machined to fit DQ70BSD top drives, and the ZJ30 Winch Lower Drive Shaft 2261HH L=960 is designed to match ZJ30 rig winches—eliminating the risk of mismatched parts and system failure. The O-RING ZC258×53 (GB34521-92) complies with national standards, ensuring compatibility with a wide range of industrial equipment. The Rexroth Valve R431005698 is designed to fit OEM hydraulic systems, ensuring reliable performance.

2. High-Durability Materials & Construction

Critical components are made from premium materials to withstand harsh industrial conditions: Bearing 430110010304400000 is crafted from high-strength alloy steel with a wear-resistant coating, ensuring long service life in high-friction environments. The W27-07-901 Friction Disc is made from heat-resistant friction material, capable of withstanding high temperatures during braking. The DQ70BSD Tooth Board 9703531001 is constructed from high-hardness steel, ensuring durability in drilling operations. Seals and gaskets (500X7G O-RING, 6P5317 Seal Ring) are made from oil-resistant, high-temperature rubber to prevent leakage and aging. The Vertical Sewage Pump Housing SP40092A05 is made from corrosion-resistant material, ensuring durability in sewage handling applications.

3. User-Friendly & Maintenance-Friendly Design

Many parts feature modular and easy-to-install designs to reduce maintenance time and labor costs. The Two-Way Reversible Filter Element LH0660D-BH3HC allows for easy cleaning and replacement, minimizing downtime. The Union Nut QGL.06/QGL.05 H62 and Bulkhead Straight Fitting JB974 enable quick connection of hoses and pipes, simplifying maintenance. The Lock Washer BKD-11-D1 and Round Nut DQ70BS T754031533 M38×1.5 feature standard sizes, making them easy to install and replace with common tools. The Floating Water Jacket Assembly W36-11-314 is designed for easy installation and removal, simplifying maintenance of rig cooling systems.

4. Compliance with Global Industry Standards

All our parts meet or exceed international industry standards, including API 7 (for drilling equipment), ISO 9001 (quality management), and IECEx (for explosion-proof components). We adhere to strict quality control processes throughout production, ensuring each part meets OEM performance requirements. Valves (VSP-3301-31, Rexroth R431005698) meet pressure rating standards for high-pressure applications, and electrical components (Dynamo 120689543, CIRCUIT BKR E17-1008-020) comply with industrial electrical safety standards. The GB34521-92 O-RING and 36001-0413 Locking Spring comply with relevant standards, ensuring compatibility and performance.

Applicable Working Conditions

Our spare parts are engineered to perform reliably in the most challenging industrial environments, making them suitable for the following scenarios—with a focus on compatibility and durability:

• Oil Drilling Sites: Compatible with ZJ30, ZJ40, ZJ50, ZJ70D rigs, DQ70BSD/DQ70BS top drives, ZJ50 hydraulic cat heads, ZJ70D turntables, and well control systems, operating in high-temperature (up to 130℃), high-pressure (up to 60MPa), dusty, humid, and vibration-prone environments—ideal for onshore and offshore drilling operations.

• Industrial Hydraulic & Pump Systems: Suitable for Rexroth valves, high-pressure filters (FAX-63×10), vertical sewage pumps (SP40092A05), and high-pressure hoses (SK-2Z11 60MPa), operating in high-pressure, high-vibration environments where reliable fluid control and transfer are critical.

• Boiler & Electrical Systems: Perfect for EO-154 boiler high voltage lines, dynamos (120689543/24V140A), circuit breakers (E17-1008-020), and speed switches (DW40C0805wg48000043), operating in high-temperature, high-voltage environments where electrical safety and stability are essential.

• Hazardous & Heavy-Duty Environments: Our parts are designed to withstand heavy loads, constant vibration, and exposure to dust, oil, and chemicals—suitable for mining, construction, and oilfield operations where equipment reliability is essential. Electrical components meet IECEx standards for use in explosive atmospheres.

Maintenance & Care Recommendations

Proper maintenance of spare parts is essential to extend their service life, ensure optimal equipment performance, and reduce unplanned downtime. Below are practical, easy-to-follow tips for daily use and maintenance, tailored to the unique needs of industrial drilling and hydraulic equipment:

1. Regular Inspection

Inspect filters (129-0373, LH0660D-BH3HC), seals (500X7G, 6P5317), and brake components (W27-07-901) monthly for wear, clogging, or leakage—replace immediately if damage is found to prevent system failure. Check electrical components (Dynamo 120689543, CIRCUIT BKR E17-1008-020) for loose connections or damage, as these can compromise equipment control. Inspect bearings (430110010304400000) and turntable bushings for abnormal noise or vibration, indicating potential wear. Examine valves (R431005698, VSP-3301-31) and pumps (SP40092A05) for fluid leakage and abnormal operation.

2. Cleaning & Lubrication

Clean filter elements (129-0373, LH0660D-BH3HC) every 3 months to remove debris and prevent clogging. Lubricate moving parts (bearings, winch drive shafts, turntable bushings) with high-temperature lubricating oil to reduce friction and wear—ensure proper lubrication levels to avoid component damage. Flush hydraulic lines and valves (R431005698, VSP-3301-31) annually to remove contaminants and maintain fluid flow. Clean DQ70BSD outer rings (9702020211) and tooth boards (9703531001) regularly to prevent mud buildup and ensure efficient operation.

3. Storage Guidelines

Store spare parts in a dry, clean, and temperature-controlled environment (10-25℃) to avoid rust and damage. Seals and rubber components (500X7G, 6P5317) should be stored away from direct sunlight and chemicals to prevent aging. Electronic components (Dynamo 120689543, Wave Radar C050058974) should be stored in anti-static packaging to protect sensitive circuits. Metal components (bearings, shafts, tooth boards) should be coated with anti-rust oil during storage to prevent corrosion. Fasteners and small parts should be stored in organized containers to avoid loss or damage.

4. Replacement Schedule

Follow these recommended replacement intervals to ensure optimal performance and safety: Filters and filter elements every 6 months or 500 operating hours; seals and gaskets every 6-12 months (or sooner if leakage is observed); brake components (W27-07-901) every 12-18 months (depending on usage); bearings (430110010304400000) and turntable bushings every 24 months or during equipment overhauls; electrical components every 5 years or if performance issues arise. Piston rings (7N7078) and pump components should be replaced when wear exceeds OEM specifications to prevent system failure.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are three real-world repair cases from our clients, demonstrating how our spare parts solve common equipment issues, minimize downtime, and restore optimal performance. These cases reflect actual scenarios in oil drilling and industrial operations, highlighting the reliability of our components:

Case 1: ZJ70D Rig Turntable Abnormal Vibration

Problem: A drilling company reported their ZJ70D rig’s turntable was experiencing excessive vibration, leading to reduced drilling precision and potential component damage. Root Cause: Worn turntable bushing (original part) unable to support rotation smoothly. Solution: Replaced with our ZJ70D ZP375 Turntable Bushing (2 3/8″-8 5/8″) and lubricated the turntable system.Result: Vibration eliminated, drilling precision restored, and turntable service life extended—downtime reduced to 2 hours, with reliable performance for 10 months of daily use.

Case 2: DQ70BSD Top Drive Component Loosening

Problem: A DQ70BSD top drive was experiencing component loosening during drilling, posing safety risks and disrupting operations. Root Cause: Damaged outer ring (original part) unable to secure top drive components. Solution: Installed our DQ70BSD Outer Ring 9702020211 and tightened related fasteners. Result: Components secured, safety risks eliminated, and top drive operation returned to normal—downtime reduced to 1.5 hours, with no further issues after 9 months.

Case 3: ZJ50 Rig Hydraulic System Pressure Instability

Problem: A ZJ50 rig’s hydraulic system was experiencing pressure instability, leading to inconsistent winch operation. Root Cause: Faulty main regulator valve spool (original part) unable to regulate pressure properly. Solution: Replaced with our Main Regulator Valve Spool 6839010 and flushed the hydraulic system. Result: Pressure stability restored, winch operation normalized, and drilling efficiency improved—downtime reduced to 1 hour, with consistent performance since replacement.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Problem-Solving Reference

Procurement Reference Standards

To ensure you select the right spare parts for your equipment, follow these simple procurement guidelines—focused on compatibility, quality, and compliance:

• Match your equipment model (e.g., ZJ70D, DQ70BSD, ZJ50) with the corresponding part number or specification (e.g., 430110010304400000, 9702020211, 7N7078) for precise compatibility. For critical components, verify OEM part numbers to ensure a perfect fit.

• Verify the part’s material and performance specifications (e.g., high-pressure components must withstand 60MPa; seals must be oil-resistant; bearings must be wear-resistant) to ensure it fits your working conditions. For electrical components, check compliance with IECEx or other relevant safety standards.

• Check for industry certifications (API 7, ISO 9001, IECEx) to ensure the part meets safety and performance standards for your application, especially in hazardous drilling environments. This ensures compliance and reduces the risk of equipment failure.

Technical Problem-Solving Reference

Our spare parts are designed to solve common technical issues in industrial equipment. Below are key references to help you troubleshoot quickly and minimize downtime:

• ZJ70D rig turntable vibration: Check the ZJ70D ZP375 turntable bushing for wear—replace with our bushing to reduce vibration, restore drilling precision, and protect turntable components.

• DQ70BSD top drive component loosening: Inspect the 9702020211 outer ring for damage—replace with our outer ring to secure components, eliminate safety risks, and ensure smooth top drive operation.

• ZJ50 rig hydraulic pressure instability: Check the 6839010 main regulator valve spool for faults—replace with our spool to restore pressure stability and ensure consistent winch operation.

Call to Action for Procurement

Whether you need a single component (e.g., Bearing 430110010304400000, DQ70BSD Outer Ring 9702020211, Piston Ring 7N7078) or a full set of spare parts for your ZJ series rig, DQ70BSD top drive, or industrial hydraulic system, we are here to meet your needs. Our parts offer superior durability, OEM-level compatibility, and compliance with international industry standards—backed by professional technical support and strict quality assurance. We prioritize delivering reliable components that keep your equipment running safely and efficiently, reducing unplanned downtime and long-term maintenance costs. Contact us today to discuss your specific requirements, get a detailed quote, and secure the spare parts you need to maintain optimal operational performance. We are committed to providing the most reliable solutions for your industrial drilling, hydraulic, and electrical control needs.

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