Parts for ZJ20/ZJ40/ZJ50/ZJ70 Drills, Canrig 1275AC-681 Top Drive & WNS2-1.25-YQ Boiler

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 equipment across oil drilling, industrial boiler, and heavy machinery sectors. Our comprehensive product portfolio covers core components for ZJ series drilling rigs (ZJ20, ZJ40, ZJ50, ZJ50LG, ZJ70, ZJ70DB, ZJ70/4500DZ, ZJ40CZ), Canrig 1275AC-681 Top Drive Drilling System, WNS2-1.25-YQ Boiler, horizontal sand pumps (SB5*6J-37kW), and winch/hydraulic systems. Key products include O-rings (5300100303, 530001002320, S01-1450-01N for Canrig 1275AC-681), filter elements (1421339/1421404, 6I2505, SPEAR 04010), brake pads (BK-1-7A), drill bits (12-1/4″ MD517X), hydraulic valves (3WH6A53, KLA-L10), and engine components (dynamo 5S6698, engine repair kit 6V4714). Every part is produced in compliance with international industry standards (API 7, ISO 9001, ASME) to address the critical needs of oil and gas exploration, industrial maintenance, and heavy machinery operation—where unplanned downtime directly impacts productivity, safety, and profitability.

Core Purpose & Target User Needs

Target User Segments

Our spare parts are tailored to serve three core user groups with distinct needs: 1) Oil drilling companies operating ZJ series rigs (ZJ20-ZJ70), Canrig 1275AC-681 top drives, and horizontal sand pumps (SB5*6J-37kW); 2) Industrial maintenance teams responsible for boilers (WNS2-1.25-YQ), winches, hydraulic systems, and engine repairs; 3) Procurement departments and equipment distributors seeking reliable, cost-effective spare parts that match OEM specifications, with access to technical support for installation and troubleshooting.

Core Purpose

The primary goal of our industrial spare parts is to minimize 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, mismatched components causing system failure, difficult maintenance, and lack of reliable technical guidance—by delivering precision-manufactured parts that fit seamlessly with original equipment, paired with practical maintenance advice and troubleshooting support. Our parts are designed to be cost-effective without compromising on quality, helping users reduce long-term maintenance costs.

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:

• Seals & Gaskets: O-ring 5300100303, O-ring 530001002320, O-Ring S01-1450-01N (for Canrig 1275AC-681 Top Drive), Sealing Ring BK-SR-5, Gasket AH1301010411, Boiler Fixed Disk Gasket L8JF-2 (for WNS2-1.25-YQ), Oil Pan Gasket 4N1151

• Filters & Gauges: Filter Element 1421339/1421404, Air Filter 6I2505, Mercedes Filter SPEAR 04010, Hydraulic Oil Return Filter TZX2-400*40 (for ZJ-20 Winch), Oil Pressure Gauge 2W3681

• Drilling & Mechanical Components: Inserted Carbide Roller Bit 12-1/4″ MD517X, Drilling Four Row Chain WG05708041, Double Sprocket II P3500057AA, Steel Wire 40104030160002100, Roller Shaft ZJ-50, DAM073M Slurry Pump Shaft, Cardan Shaft Cross Shaft Assembly SWC315BH-1410

• Brake & Hydraulic Components: Brake Pads BK-1-7A, Adjusting Screw BK-11-7A, Extension Spring ZJ70DB BK-12-7A, Anti-Collision Ring Valve FP-L8 QY434 (ZJ-50), Hydraulic Reversing Valve ZJ50L 3WH6A53, One-Way Throttle Valve KLA-L10, Check Valve M-SR20KE05-L1X (ZJ70DBS/ZJ30DBS)

• Engine & Power Components: Engine Repair Kit 6V4714, Dynamo 5S6698/10459066/12V 85A 9L-7712, Turbocharger 3594027

• Rig & Top Drive Components: Crane ZJ70/4500DZ Lock Cylinder QGAφ50*25, Open Cylinder Assembly ZJ40PSKSG-00, Winch Oil Pump Drive Shaft ZJ-20, ZJ50LG Main Carriage Microcomputer Speedometer WJ.CC-1, Air Collector (Air Clutch) W31-20-906A (ZJ40CZ)

• Fasteners & Accessories: Hex Head Bolt with Hole DQ70BSD 4202001570 M10×12, Washer P1000166AA, Ring Axle Roundwire Snap 65Mn (9702032003), Plug NPT1″ Z16140800002AA, Air Source Treatment Duo QAC4010-14M

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:

1. Seals & Gaskets

O-rings (5300100303, S01-1450-01N) and sealing rings (BK-SR-5) create airtight and watertight seals in hydraulic, pneumatic, and fluid systems, preventing leakage that can lead to pressure loss, equipment damage, and safety hazards. The O-Ring S01-1450-01N is specifically engineered for the Canrig 1275AC-681 Top Drive, ensuring a perfect fit to withstand high pressure during drilling operations. Gaskets (AH1301010411, L8JF-2) seal joints in engines and boilers, preventing fluid or gas leakage and maintaining system efficiency.

2. Drilling & Mechanical Components

The Inserted Carbide Roller Bit 12-1/4″ MD517X is designed for efficient drilling in various rock formations, featuring durable carbide inserts that reduce wear and improve drilling speed. Drilling four row chains (WG05708041) and double sprockets (P3500057AA) transmit power smoothly in rig systems, ensuring consistent operation even under heavy loads. The Cardan Shaft Cross Shaft Assembly SWC315BH-1410 allows for flexible power transmission in winches and drilling systems, accommodating misalignment without compromising performance.

3. Brake & Hydraulic Components

Brake pads BK-1-7A and adjusting screws BK-11-7A ensure reliable braking performance in ZJ70DB rigs, reducing stopping distance and enhancing safety. Hydraulic reversing valves (3WH6A53) control the direction of hydraulic fluid flow, enabling smooth operation of cylinders and winches. Check valves (M-SR20KE05-L1X) prevent backflow in hydraulic systems, protecting pumps and other components from damage.

4. Filters & Engine Components

Filter elements (1421339/1421404) and air filters (6I2505) remove contaminants from fluids and air, protecting engines, hydraulic systems, and pumps from wear. The dynamo 5S6698 provides stable 12V power to rig electrical systems, ensuring reliable operation of lights, controls, and other electrical components. The engine repair kit 6V4714 includes all necessary parts to maintain and repair engines, reducing the need for separate part sourcing and minimizing downtime.

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 and minimize maintenance:

1. OEM-Level Precision & Compatibility

All parts are manufactured to match the exact dimensional and performance specifications of original equipment. For example, the O-Ring S01-1450-01N is precision-machined to fit the Canrig 1275AC-681 Top Drive, and the Hydraulic Reversing Valve ZJ50L 3WH6A53 is designed for seamless integration with ZJ50L rigs—no modifications are needed during installation, eliminating the risk of mismatched components.

2. High-Durability Materials

Critical components are made from premium materials to withstand harsh industrial conditions: brake pads BK-1-7A use high-friction, heat-resistant materials to extend service life; inserted carbide roller bits (12-1/4″ MD517X) feature wear-resistant carbide inserts for long-lasting drilling performance; and O-rings are made from nitrile rubber (NBR) or Viton for excellent oil, temperature, and chemical resistance (-40℃ to 150℃).

3. User-Friendly Design

Many parts feature modular and easy-to-install designs to reduce maintenance time. The engine repair kit 6V4714 comes with pre-sorted components and clear instructions, allowing maintenance teams to complete repairs quickly. Fasteners like the Hex Head Bolt with Hole DQ70BSD 4202001570 M10×12 feature a hole for safety wiring, preventing loosening in high-vibration environments.

4. Safety-Centric Construction

Components like the Check Valve M-SR20KE05-L1X and Brake Pads BK-1-7A are designed with safety as a top priority. The check valve prevents backflow in hydraulic systems, reducing the risk of equipment failure, while the brake pads provide consistent stopping power to protect operators and machinery. Flame retardant hose assemblies (JJ746605130004) meet fire safety standards, making them suitable for use in hazardous drilling environments.

Applicable Working Conditions

Our spare parts are engineered to perform reliably in the most challenging industrial environments, making them suitable for the following scenarios:

• Oil Drilling Sites: Compatible with ZJ20, ZJ40, ZJ50, ZJ70 series rigs, Canrig 1275AC-681 top drives, and horizontal sand pumps (SB5*6J-37kW), operating in high-temperature (up to 130℃), high-pressure (up to 50MPa), dusty, and humid environments—ideal for onshore and offshore drilling operations.

• Industrial Boiler Systems: Suitable for WNS2-1.25-YQ boilers, operating in high-temperature and high-pressure conditions, where gaskets (L8JF-2) and seals must withstand extreme heat and pressure.

• Heavy Industrial Facilities: Perfect for winches, hydraulic systems, and engines in mining, construction, and manufacturing, where equipment operates under heavy loads, constant vibration, and harsh conditions.

• Hazardous Environments: Flame retardant hose assemblies (JJ746605130004) and explosion-proof plugs (TYPE 15YT) are designed for use in hazardous areas, meeting safety standards for oil and gas operations.

Maintenance & Care Recommendations

Proper maintenance of spare parts is essential to extend their service life and ensure optimal equipment performance. Below are practical, easy-to-follow tips for daily use and maintenance:

1. Regular Inspection

Inspect seals (O-rings, sealing rings) and hoses (flame retardant, high-pressure) monthly for cracks, leaks, or wear—replace immediately if damage is found to prevent system failure. Check brake pads (BK-1-7A) and filter elements (1421339) quarterly for wear and contamination, respectively.

2. Cleaning & Lubrication

Clean air filters (6I2505) and hydraulic filters (TZX2-400*40) every 3 months to remove debris and prevent clogging. Lubricate moving parts (roller shafts, cardan shafts, sprockets) with high-temperature lubricating oil to reduce friction and wear. Avoid over-lubrication, as excess oil can attract dust and debris.

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 should be stored away from direct sunlight and chemicals to prevent aging. Electronic components (speedometer WJ.CC-1, dynamo 5S6698) should be stored in anti-static packaging to protect sensitive circuits.

4. Replacement Schedule

Follow these recommended replacement intervals: O-rings every 6-12 months (or sooner if leakage is observed); filter elements every 6 months or 500 operating hours; brake pads every 12-18 months (depending on usage); and engine gaskets (4N1151) every 24 months or during engine overhauls.

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:

Case 1: Canrig 1275AC-681 Top Drive Hydraulic Leakage

Problem: A drilling company reported hydraulic leakage in their Canrig 1275AC-681 Top Drive, reducing system pressure and affecting drilling efficiency. Root Cause: Worn O-ring (original part) that failed to seal properly under high pressure. Solution: Replaced with our O-Ring S01-1450-01N, specifically designed for the Canrig 1275AC-681. Result: Leakage stopped completely, hydraulic pressure restored, and top drive operation resumed within 1 hour—no further issues reported after 7 months of use.

Case 2: ZJ70DB Rig Brake Failure

Problem: A ZJ70DB rig’s brake system failed to engage properly, posing a safety risk during drilling operations. Root Cause: Worn brake pads (original part) and misaligned adjusting screws. Solution: Installed our Brake Pads BK-1-7A and Adjusting Screw BK-11-7A, then adjusted the brake system to factory specifications. Result: Brake performance restored to normal, safety risks eliminated, and downtime reduced to 2.5 hours—brake system has operated reliably for 6 months.

Case 3: ZJ-20 Winch Hydraulic System Contamination

Problem: A ZJ-20 winch’s hydraulic system was experiencing frequent pump failures due to contamination. Root Cause: Clogged hydraulic oil return filter (original part) failing to remove debris. Solution: Replaced with our Hydraulic Oil Return Filter TZX2-400*40 and flushed the hydraulic system. Result: System contamination eliminated, pump failure frequency reduced by 90%, and winch operation stabilized—downtime was 3 hours.

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:

• Match your equipment model (e.g., Canrig 1275AC-681, ZJ50LG) with the corresponding part number (e.g., S01-1450-01N, WJ.CC-1) for precise compatibility.

• Verify the part’s material and performance specifications (e.g., O-rings for hydraulic systems must meet NBR/Viton standards; filter elements must match the system’s flow rate) to ensure it fits your working conditions.

• Check for industry certifications (API 7, ISO 9001, ASME) to ensure the part meets safety and performance standards for your application, especially in hazardous environments.

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:

• Hydraulic/pneumatic leakage: Inspect O-rings (5300100303, S01-1450-01N) and seals for wear—our high-quality seals will prevent leakage and restore system pressure.

• Brake system failure: Check brake pads (BK-1-7A) for wear and adjusting screws (BK-11-7A) for alignment—replace with our parts to restore reliable braking performance.

• Hydraulic system contamination: Replace the filter element (1421339/1421404, TZX2-400*40) and flush the system—our filters effectively remove contaminants to protect pumps and components.

Call to Action for Procurement

Whether you need a single component (e.g., O-Ring S01-1450-01N for Canrig 1275AC-681, Inserted Carbide Roller Bit 12-1/4″ MD517X) or a full set of spare parts for your ZJ series rig, boiler, or top drive, we are here to meet your needs. Our parts offer superior durability, OEM-level compatibility, and competitive pricing—backed by professional technical support and strict quality assurance. Contact us today to discuss your specific requirements, get a detailed quote, and secure the spare parts you need to keep your equipment running safely and efficiently. We prioritize your operational success and are committed to providing the most reliable solutions for your industrial needs.

contact us ：

Emeil: [email protected]   whatsapp: +86 15275658619

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