7W-5928 Plunger, JJ746605011300 Chain Assembly

Introduction

In industrial production and equipment operation, every core component is a cornerstone of stable and efficient work—especially in high-demand fields like oil drilling, boiler operation, and mud treatment. Whether it is oil drilling rigs (ZJ20, ZJ30, ZJ45, ZJ70, ZJ70D, ZJ-30C, JC70B, DW40C), top drives (DQ250Z), industrial boilers (WNS1.0-1.25-Y, EO-154), mud instruments (80-1 Electric Centrifuge, LKZN-Ⅲ Intelligent Mud Control Device), or winches, each component directly affects equipment performance and production safety. This document focuses on a full range of high-quality industrial parts, including 7W-5928 Plunger, JJ746605011300 Chain Assembly, 3827643 Filter Element, and more than 50 other essential components. We target professional users in oil drilling, boiler operation, mining, and mechanical equipment maintenance, directly solving industry pain points such as component mismatch, short service life in harsh environments, difficult installation, high maintenance costs, and unplanned production downtime. Every product we supply complies with international industrial standards (ISO 9001, API 7G, GB/T) and original equipment specifications, ensuring perfect compatibility, stable performance, and long service life in complex working conditions.

Core Purpose

This full series of industrial parts is specifically designed to match and replace core components of key industrial equipment, including ZJ20/ZJ30/ZJ45/ZJ70/ZJ70D/ZJ-30C/JC70B/DW40C drilling rigs, DQ250Z top drives, WNS1.0-1.25-Y/EO-154 industrial boilers, 80-1 electric centrifuges, LKZN-Ⅲ intelligent mud control devices, and JC70B winches. We focus on meeting the segmented needs of target users in different scenarios: 1) High-precision model matching to avoid equipment malfunctions, production delays, and safety hazards caused by incompatible parts; 2) Excellent wear resistance, corrosion resistance, and high-temperature resistance to adapt to high-pressure (up to 35MPa), high-temperature (up to 220℃), humid, dusty, and vibrating industrial environments; 3) User-friendly design for easy installation and maintenance, minimizing equipment downtime and reducing labor costs; 4) Stable and reliable performance to ensure long-term continuous operation of production equipment. Covering plungers, chain assemblies, filters, valves, bearings, seals, sensors, and control systems, our product line provides a one-stop supply solution for equipment maintenance, overhaul, and spare parts replacement, helping users reduce production risks and improve operational efficiency.

Product Overview

Product Range

Our product line covers more than 50 types of industrial core components, including but not limited to: Plunger (7W-5928), Chain Assembly (JJ746605011300), Filter Element (3827643, 3831236, 142-1339, 1R0712), Exhaust Valve (5I7738), 3AMP Insurance (P-1434), Filter Cartridge (FAX-40×20, FAX-63×10), End Cap (P0100455AA), Bearing Cap (JC28/11D-06-02), ZJ70D Airway Assembly (QJ-5), ZJ20 Sintered Oil Filter Element (S100), LKZN-Ⅲ Intelligent Mud Control Device Sensor Assembly, Grease Fitting (19368-01), DQ250Z Top Drive Braking Pad (1200419582), Bushing (BK-3-7B), Output Shaft Bearing (6754783), JY248.2-4 Rubber Hose Connector Seal, SZJ-C Drilling Parameters Control System (Weight Indicator), Belt (6N6655/6652), DQ70BSD Stack Valve Screw (4201990041), Plunger Seal (P100195 CL9012.02.00), Olock Up (3K-0360), ZJ70 PSK High Pressure Filter (FAX-63×10), JC70B Winch Water Pipeline Assembly (700105020200), DQ70BSD Special Rotating Grid Circle (TG3403800-T40NA), Copper Pad (T001-1701), ZJ-30C Gear Box High Pressure Ball Valve (4600100020), SL-135 Flushing Pipe Seal, Air Filter (QQ2), WNS1.0-1.25-Y Boiler Pressure Controller (SSNS-C110), ZJ70DB Oil Return Filter (FAX-63×10), ZJ30 Drill Floor Tongs Tail Pile (180-06-01), Diesel Filter (1R0712), Valve Guide (122-7374), 80-1 Mud Instrument Electric Centrifuge, DW40C0805wg15000012 Auxiliary Brake Control Valve, Frame Board (G8032HSPRTSD21), Rexroth Valve (R431006328/P63985-2/7P-9S), 19368-01 Grease Zerk Cover, Water Separator (129-0373), Spring Packing (5259640), ZJ70D Oil Guide Swivel Tap (R019-021563/C3MIJ), DW40C0701wg07010014 Remote Control Box Assembly, ZJ45 Spring Seal (250×290×18), Crankshaft (W1512939), Main Regulator Valve Spool1 (6834453), DAM4013 Cover Plate, Bolt (420201061120060060), Pressure Sensor (5093BPS), ZJ-70 Winch Brake Operating Mechanism Disc Brake Injection Pump (A10VS010DR/52R), Gear Pump (P37X278BASD307), ZJ70D High Pressure Hose Assembly (16II-26000), SL-170 Faucet Flush Pipe Circlip, EO-154 Boiler Fuel Solenoid Valve (K2423), and Cross Head Flat Pad (P1000315AA). All products are manufactured in strict accordance with ISO 9001 quality management system, API 7G standards, and original equipment specifications, with a 100% model matching rate and 99.9% factory inspection pass rate, ensuring consistent performance and reliability.

Function Description

Key Component Functions

• Plungers & Sealing Components (7W-5928, P100195, 250×290×18, 5259640): The 7W-5928 Plunger is used in hydraulic pumps and injection systems, with a surface hardness of HRC 60-65 and a wear resistance 35% higher than standard plungers, ensuring stable fluid delivery; the P100195 Plunger Seal (CL9012.02.00) and ZJ45 250×290×18 Spring Seal provide reliable sealing, with a temperature resistance range of -40℃ to 150℃ and a sealing efficiency of 99.8%; the 5259640 Spring Packing ensures tight sealing for rotating components, reducing oil leakage by 90% compared to ordinary packing.

• Filters & Filtration Components (3827643, 1R0712, FAX-63×10, QQ2): The 3827643 Filter Element has a filtration precision of 5μm, removing impurities from hydraulic oil to extend the service life of hydraulic components by 30%; the 1R0712 Diesel Filter filters diesel impurities, with a dirt-holding capacity of 40g and a filtration efficiency of 99.5%; the FAX-63×10 High Pressure Filter (for ZJ70, ZJ70DB) withstands pressure up to 35MPa, ensuring clean oil circulation in high-pressure systems; the QQ2 Air Filter filters dust and debris, with a filtration precision of 10μm, protecting engine and air compressor components.

• Drilling & Transmission Components (JJ746605011300, 1200419582, 6754783, A10VS010DR/52R): The JJ746605011300 Chain Assembly transmits power for drilling rig components, with a breaking strength of 800kN and a service life of 15,000 working hours; the DQ250Z Top Drive 1200419582 Braking Pad provides stable braking, with a friction coefficient of 0.47 and a service life of 8,000 working hours; the 6754783 Output Shaft Bearing has a load capacity of 50kN and a rotational speed of up to 3500r/min, ensuring smooth power transmission; the ZJ-70 A10VS010DR/52R Injection Pump delivers stable hydraulic pressure, with a displacement of 10ml/r and a maximum pressure of 31.5MPa, supporting winch brake operation.

• Boiler & Control Components (SSNS-C110, K2423, 5093BPS, SZJ-C): The WNS1.0-1.25-Y Boiler SSNS-C110 Pressure Controller monitors and adjusts boiler pressure, with a control range of 0-1.25MPa and an accuracy of ±0.01MPa; the EO-154 Boiler K2423 Fuel Solenoid Valve controls fuel supply, with a response time of ≤0.05s and a service life of over 100,000 cycles; the 5093BPS Pressure Sensor measures system pressure, with a measurement range of 0-50MPa and an accuracy of ±0.5%; the SZJ-C Drilling Parameters Control System (Weight Indicator) displays drilling weight in real time, with an accuracy of ±1% FS, ensuring safe drilling operations.

Structural Features

Overall Structural Advantages

All products adopt industry-optimized structural design, combined with precision manufacturing technology, to balance durability, compatibility, and ease of use. Key structural features include:

1. High-Strength & Wear-Resistant Materials: Mechanical components (plungers, chain assemblies, crankshafts, bearings) are made of 40Cr, 45# steel, or wear-resistant alloy,经过 carburizing, quenching, and tempering treatment to achieve a tensile strength of ≥750MPa and impact toughness of ≥65J/cm², capable of withstanding high loads, impacts, and wear in harsh industrial environments.

2. Precision Machining & Perfect Compatibility: Adopting CNC machining technology with a machining accuracy of ±0.01mm, ensuring perfect matching with original equipment interfaces. For example, the JC28/11D-06-02 Bearing Cap has a fit tolerance of H7/h6, and the 420201061120060060 Bolt has a thread tolerance of 6g, meeting the strict fit requirements of industrial equipment. All components are designed to match the original equipment without the need for modification.

3. Corrosion & High-Temperature Resistance: Metal components are treated with galvanizing, chrome plating, or ceramic coating, achieving a corrosion resistance grade of ≥C5 (in line with ISO 12944-2 standard), suitable for humid, corrosive, and dusty on-site environments; sealing components (P100195, 5259640, JY248.2-4) are made of fluororubber or nitrile rubber, with a temperature resistance range of -40℃ to 150℃ and a compression set of ≤12%, ensuring reliable sealing performance.

4. User-Friendly Installation & Maintenance: Optimized for easy operation—19368-01 Grease Fittings and 420201061120060060 Bolts use standard sizes for compatibility with common tools; quick-connect components (ZJ70D High Pressure Hose Assembly 16II-26000) enable fast installation and disassembly, reducing maintenance time by 40%; filter elements (3827643, 1R0712) are designed for easy replacement, minimizing equipment downtime.

Applicable Working Conditions

This series of industrial parts is widely used in various harsh industrial scenarios, with targeted applicability for different equipment types:

1. Oil Drilling & Exploration

Suitable for ZJ20, ZJ30, ZJ45, ZJ70, ZJ70D, ZJ-30C, JC70B, DW40C drilling rigs and DQ250Z top drives, including components such as the 7W-5928 Plunger, JJ746605011300 Chain Assembly, 1200419582 Braking Pad, and A10VS010DR/52R Injection Pump. Adapts to high-temperature (≤160℃), high-pressure (≤35MPa), vibrating, and dusty drilling sites, ensuring continuous and safe operation of drilling rigs.

2. Industrial Boiler Systems

Matching WNS1.0-1.25-Y and EO-154 industrial boilers, including the SSNS-C110 Pressure Controller, K2423 Fuel Solenoid Valve, and T001-1701 Copper Pad. Works stably under high temperature (≤220℃) and high pressure (≤1.25MPa), with excellent electrical insulation and corrosion resistance, ensuring safe and efficient operation of the boiler system.

3. Mud Treatment & Fluid Transmission Systems

Applicable to 80-1 electric centrifuges, LKZN-Ⅲ intelligent mud control devices, and drilling rig hydraulic systems, including components such as the 3827643 Filter Element, FAX-63×10 High Pressure Filter, and 5093BPS Pressure Sensor. Adapts to long-term continuous operation, high-speed rotation (≤3500r/min), and conveying high-concentration mud or hydraulic oil, with stable performance and low energy consumption.

4. Mechanical Transmission & Control Systems

Suitable for winches (JC70B, ZJ-70), gear boxes (ZJ-30C), and drilling parameter control systems (SZJ-C), including components such as the JJ746605011300 Chain Assembly, 6754783 Output Shaft Bearing, and DW40C0805wg15000012 Auxiliary Brake Control Valve. Adapts to high-load, high-frequency operation, ensuring smooth power transmission, precise control, and accurate data measurement.

Maintenance & Care Suggestions

Proper maintenance and care can significantly extend the service life of components, reduce maintenance costs, and ensure consistent equipment performance. Below are practical, targeted suggestions:

1. Daily Inspection

Check the tightness of bolts (420201061120060060, DQ70BSD 4201990041) and chain assemblies (JJ746605011300) every 24 working hours, tightening or adjusting them promptly if loose; inspect sealing components (P100195, 5259640, JY248.2-4) for oil or air leaks, replacing them immediately if damage is found; check filter elements (3827643, 1R0712, FAX-63×10) for clogging, cleaning or replacing them when the pressure difference exceeds 0.3MPa.

2. Regular Lubrication

Lubricate chain assemblies (JJ746605011300), output shaft bearings (6754783), and bushings (BK-3-7B) every 600 working hours using industrial-grade lubricating oil or grease (e.g., 68# anti-wear hydraulic oil, lithium-based grease), ensuring lubrication coverage of 100% of moving parts; avoid mixing different types of lubricants to prevent reduced lubrication efficiency and component damage.

3. Periodic Replacement

Replace wearing parts according to service life: Braking pads (1200419582), filter elements (3827643, 1R0712, FAX-63×10), and seals (P100195, 5259640) every 8000-10000 working hours; chain assemblies (JJ746605011300) and plungers (7W-5928) every 15000-20000 working hours; pressure sensors (5093BPS) and solenoid valves (K2423) every 20000-25000 working hours. For components in harsh environments (e.g., drilling sites, boiler rooms), shorten the replacement cycle by 30%.

4. Storage & Handling

Store unused components in a dry, ventilated warehouse with a temperature of 0℃-25℃ and relative humidity ≤60%, avoiding moisture, corrosion, and direct sunlight; seal precision components (5093BPS Pressure Sensor, LKZN-Ⅲ Sensor Assembly) in waterproof packaging to prevent dust and damage; handle heavy components (crankshaft W1512939, gear pump P37X278BASD307) with care to avoid collision and deformation.

We supply the following spare parts:

On-Site Fault Maintenance Cases

Below are 3 real on-site fault cases, providing practical maintenance guidance to help users quickly resolve component-related issues, reduce equipment downtime, and improve operational efficiency:

Case 1: ZJ70 Drilling Rig Hydraulic Pump Failure

Fault Phenomenon: The ZJ70 drilling rig hydraulic pump fails to deliver pressure, and the winch cannot operate. Fault Cause: Inspection shows the 7W-5928 Plunger is worn (surface wear exceeds 0.2mm), and the P100195 Plunger Seal is damaged, causing internal leakage. Maintenance Solution: Replace the 7W-5928 Plunger and P100195 Plunger Seal, adjust the pump pressure to 30MPa, and test run. Result: The hydraulic pump delivers pressure normally, the winch operates smoothly, and the drilling rig resumes work. Key Tip: Check plunger wear every 3 months, and replace it when wear exceeds 0.15mm.

Case 2: WNS1.0-1.25-Y Boiler Pressure Instability

Fault Phenomenon: The WNS1.0-1.25-Y boiler pressure fluctuates abnormally, and the pressure controller displays incorrect data.Fault Cause: The SSNS-C110 Pressure Controller is faulty, and the sensor probe is contaminated. Maintenance Solution: Replace the SSNS-C110 Pressure Controller, clean the sensor probe, and calibrate the pressure control range. Result: The boiler pressure stabilizes within 0-1.25MPa, and the controller works normally. Key Tip: Clean the pressure controller probe every month to avoid contamination and ensure accurate measurement.

Case 3: DQ250Z Top Drive Brake Failure

Fault Phenomenon: The DQ250Z top drive brake fails to engage, and the drill string cannot be locked. Fault Cause: The 1200419582 Braking Pad is severely worn (thickness less than 5mm), and the brake clearance is too large. Maintenance Solution: Replace the 1200419582 Braking Pad, adjust the brake clearance to 0.3-0.5mm, and test the brake engagement. Result: The brake engages reliably, the drill string is locked securely, and the top drive resumes normal operation. Key Tip: Check braking pad thickness every 2 months, and replace it when thickness is less than 6mm.

Frequently Asked Questions (FAQ)

Procurement Guide

We provide a full range of industrial core parts, including the 7W-5928 Plunger, JJ746605011300 Chain Assembly, 3827643 Filter Element, and all other models listed in this document. All products are manufactured in strict accordance with international industrial standards (ISO, API, GB) and original equipment specifications, ensuring high precision, strong compatibility, and reliable performance. We offer customized matching services based on your equipment model, working conditions, and usage requirements, ensuring each component perfectly fits your equipment and meets your operational needs. Whether you need single spare parts, batch procurement, or professional technical support for installation and maintenance, we can provide comprehensive solutions to help you reduce maintenance costs, minimize equipment downtime, and improve production efficiency. To ensure you get the most suitable components, please provide the following information when purchasing: 1) Equipment model and specification; 2) Component model or original part number; 3) Working environment (temperature, pressure, medium, etc.); 4) Purchase quantity and usage purpose. We will provide you with a competitive quotation, detailed product parameters, and professional technical guidance to support your production and maintenance needs.

Conclusion

This series of industrial core parts, including the 7W-5928 Plunger, JJ746605011300 Chain Assembly, 3827643 Filter Element, and more than 50 other components, is dedicated to providing reliable, high-compatibility solutions for users in oil drilling, boiler operation, mining, and mechanical equipment maintenance. With high-quality materials, precision machining, and user-friendly design, our products effectively solve industry pain points such as mismatched components, short service life, and difficult maintenance, helping users improve equipment stability and production efficiency. We adhere to the principle of "quality first, customer-centric", providing one-stop procurement and technical support services. Whether you need to replace a single component or purchase in batches, we are your trusted partner for industrial parts supply, committed to supporting your long-term, stable production and helping you achieve better economic benefits.

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