01 Mar 2026

Parts for ZJ30/ZJ40/ZJ50/ZJ70 Drills, KDB-250FA Boiler & FKQ1280-8B Control Room

Introduction

We focus on manufacturing and supplying high-quality, OEM-compatible industrial spare parts, specifically engineered to fit and enhance the performance of a wide range of heavy-duty industrial equipment. Our comprehensive product portfolio covers core components for ZJ series drilling rigs (ZJ30C, ZJ30DB, ZJ40, ZJ40PSZ75A, ZJ45, ZJ50L, ZJ70, ZJ70PSK), KDB-250FA boiler systems, FKQ1280-8B remote control rooms, slurry pumps (CAM078HS1D21 B078G01), winches, and top drive systems. Key products include valve seat rings (1767690), friction pads (29529492 for fifth and forward gears), return springs (ZJ70 PSK KQ-48), bearings (N2222M, CS33001-0220), hydraulic filters (ZJ32L FAX-100×10), steel tooth roller bits (2159mm HJ437G), and repair kits (Safety Cylinder Repair Kit ZJ40 PSZ75A, DW40C070266666666). 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 equipment downtime directly impacts productivity, safety, and operational costs.

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-ZJ70), top drives, slurry pumps, and FKQ1280-8B remote control rooms; 2) Industrial maintenance teams responsible for KDB-250FA boilers, winches, hydraulic systems, and engine/transmission repairs; 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.

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, mismatched components causing system failure, complex maintenance processes, and lack of reliable technical guidance—by delivering precision-manufactured parts that fit seamlessly with original equipment. Our parts balance durability and cost-effectiveness, helping users reduce long-term maintenance costs while maximizing operational efficiency.

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:

 Valves & Valve Components: Valve Seat Ring 1767690, Valve VA20-AA440/A20-AA128, Manual Reversing Valve ZJ50L RK23R5-L8-J, Full Open Valve with Urethane Insert (P/N 9700353, SWND-6V1), Safety Valve EQ140-3514E2-010, 8P-1S/P55556-3/B2804 Shift Valve, DW40C0801wg28049719 One-way Valve

 Bearings & Mechanical Components: Bearing N2222M, Main Bearing CS33001-0220, Clutch Torsion Bar AVB700*250, Winch Oil Pump Drive Shaft ZJ-45, Tin Bronze Shaft Sleeve HG075K34, Wear Ring W36-33-300, Semicircle Retaining Ring (BK-8-7A, BK-8-7B, BKD-8-7D)

 Drilling & Pump Components: CAM078HS1D21 B078G01 Slurry Pump Stuffing Box, Steel Tooth Roller Bit 2159mm HJ437G, STL45078HS1 Seal, Inhale Air Capsules AH330010535A00

 Brake & Transmission Components: Friction Pads for Fifth and Forward Gears 29529492, Return Spring ZJ70 PSK KQ-48, Brake Device ZJ-30C Rear Axle Brake Chamber CP3530JL010/50002, Brake Device ZJ30C Direction Oil Pump V10-1P 7P-11D20-LH, Guide Belt BK-GB-1, Lever BK-5-7Ag

 Filters & Seals: Hydraulic Filter ZJ32L FAX-100×10, Air Filter BEZK183/45 440 55 394, Seal 3J1907, O-Ring DQ70BS WDJHZ 143×8.6, Winch Oil Pump Drive Shaft Oil Seal PD40*65*12, Shear Ram Cutter Body Seal I 2FZ35704J

 Repair Kits & Accessories: Safety Cylinder Repair Kit ZJ40 PSZ75A, DW40C070266666666 Repair Kit, Remote Control Room Repair Kit FKQ1280-8B, Top Drive Accessories Gasket DQ40 9702012003, F003M Frame, 90020503 Back Tong Positioning Pin

 Electronics & Instruments: Air Conditioner Thermostat T8011R TRANE, Tachometer ZJ70 D00-14-0003, Pressure Transmitters BSCYG901040CJ, Inclinometer (LHE Type Self-Floating Electronic Single-Point, MWD Fishing Head 201711), Tolteq Transformer 220V to 110V 630039

 Fasteners & Connectors: Hexagon Socket Head Screw DQ70 M14×60 4.10.01.128, Connector ZJ30DB 436.52.172.35 QS-3/8-8, Gas Connector ZJ50L QS-10, Touring Car Hook Assembly Z16120000044AA, Touring Car Hook YG180 Lower Hook Body 02023

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. Valves & Valve Components

Valve Seat Ring 1767690 ensures a tight seal for valves in drilling and industrial systems, preventing fluid leakage and maintaining system pressure. The Manual Reversing Valve ZJ50L RK23R5-L8-J controls the direction of hydraulic fluid flow in ZJ50L rigs, enabling smooth operation of cylinders and winches. The Full Open Valve with Urethane Insert (9700353/SWND-6V1) provides reliable flow control with wear-resistant urethane inserts, extending service life in harsh environments.

2. Bearings & Mechanical Components

Bearings N2222M and CS33001-0220 reduce friction in rotating components (e.g., shafts, gears), ensuring smooth operation and reducing wear. The Clutch Torsion Bar AVB700*250 absorbs vibration in clutch systems, protecting transmission components and improving overall system stability. The Tin Bronze Shaft Sleeve HG075K34 provides wear resistance for rotating shafts, extending the life of pumps and other machinery.

3. Brake & Transmission Components

Friction Pads 29529492 for fifth and forward gears provide reliable friction for transmission systems, ensuring smooth gear shifts and reducing wear. The Return Spring ZJ70 PSK KQ-48 restores brake and valve components to their original position after operation, ensuring consistent performance. The Brake Device ZJ-30C Rear Axle Brake Chamber CP3530JL010/50002 delivers reliable braking force for ZJ30C rigs, enhancing safety during drilling operations.

4. Filters & Repair Kits

Hydraulic Filter ZJ32L FAX-100×10 removes contaminants from hydraulic fluid, protecting pumps, valves, and cylinders from damage. The Remote Control Room Repair Kit FKQ1280-8B includes all necessary components to maintain and repair FKQ1280-8B remote control rooms, reducing the need for separate part sourcing and minimizing downtime. O-Rings (DQ70BS WDJHZ 143×8.6) and seals (3J1907) create airtight and watertight seals in fluid systems, preventing leakage.

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 Manual Reversing Valve ZJ50L RK23R5-L8-J is precision-machined for seamless integration with ZJ50L rigs, and the Winch Oil Pump Drive Shaft ZJ-45 is designed to fit ZJ-45 winches perfectly—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: Steel Tooth Roller Bit 2159mm HJ437G features high-strength steel and carbide teeth for long-lasting drilling performance; Friction Pads 29529492 use heat-resistant, high-friction materials to extend service life; and Bearings N2222M are made from high-grade steel for enhanced load-bearing capacity and corrosion resistance.

3. User-Friendly Design

Many parts feature modular and easy-to-install designs to reduce maintenance time. Repair kits (e.g., Safety Cylinder Repair Kit ZJ40 PSZ75A) come with pre-sorted components and clear instructions, allowing maintenance teams to complete repairs quickly. Fasteners like the Hexagon Socket Head Screw DQ70 M14×60 4.10.01.128 feature a hexagonal socket design for easy installation and removal, even in tight spaces.

4. Safety-Centric Construction

Components like the Safety Valve EQ140-3514E2-010 and Brake Device ZJ-30C Rear Axle Brake Chamber CP3530JL010/50002 are designed with safety as a top priority. The safety valve protects hydraulic systems from overpressure, preventing equipment damage and safety hazards, while the brake chamber delivers consistent braking force to protect operators and machinery. Shear Ram Cutter Body Seal I 2FZ35704J ensures reliable sealing in blowout preventer (BOP) systems, critical for drilling safety.

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 ZJ30C, ZJ30DB, ZJ40, ZJ45, ZJ50L, ZJ70 series rigs, top drives, and slurry pumps, 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 KDB-250FA boilers, operating in high-temperature and high-pressure conditions, where gaskets and seals must withstand extreme heat and pressure.

 Heavy Industrial Facilities: Perfect for winches, hydraulic systems, transmissions, and remote control rooms (FKQ1280-8B) in mining, construction, and manufacturing, where equipment operates under heavy loads, constant vibration, and harsh conditions.

 Hazardous Environments: Safety components (e.g., Safety Valve EQ140-3514E2-010, Shear Ram Cutter Body Seal I 2FZ35704J) are designed for use in hazardous oil and gas operations, meeting strict safety standards.

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, 3J1907), valves (1767690, VA20-AA440), and brake components (29529492, CP3530JL010) monthly for wear, cracks, or leakage—replace immediately if damage is found to prevent system failure. Check bearings (N2222M, CS33001-0220) quarterly for noise or vibration, which indicate wear.

2. Cleaning & Lubrication

Clean air filters (BEZK183/45) and hydraulic filters (FAX-100×10) every 3 months to remove debris and prevent clogging. Lubricate moving parts (bearings, shafts, gears) 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 (thermostat T8011R, inclinometer) should be stored in anti-static packaging to protect sensitive circuits.

4. Replacement Schedule

Follow these recommended replacement intervals: O-rings and seals every 6-12 months (or sooner if leakage is observed); filter elements every 6 months or 500 operating hours; friction pads (29529492) every 12-18 months (depending on usage); and bearings every 24 months or during equipment overhauls.

We supply the following spare parts:

Valve seat ring 1767690 Friction pads for fifth and forward gears 29529492

return spring\ZJ70 PSK KQ-48

Bearing N2222M

clutch torsion bar AVB700*250

CAM078HS1D21 B078G01 Slurry Pump Stuffing Box

Air conditioner thermostat T8011R TRANE

Winch oil pump drive shaft ZJ-45 oil seal PD40*65*12

Tachometer\ZJ70 D00-14-0003

STL45078HS1 seal

Valve VA20-AA440/A20-AA128

manual reversing valve\ZJ50L RK23R5-L8-J

FULL OPEN VALVE WITH URETHANE INSERT P/N 9700353 or P/N SWND-6V1

Touring car hook assembly Z16120000044AA

BEARING, MAIN CS33001-0220

Top drive accessories gasket DQ40 9702012003

F003M Frame

wear ring W36-33-300

Inclinometer LHE type self-floating electronic single-point inclinometer friction pipe wrench LHE-6334

6838243 main oil pump

guide belt BK-GB-1

90020503 back tong positioning pin

Valve plate body F751.11.04.03.01

Safety Cylinder Repair Kit ZJ40 PSZ75A

Semicircle retaining ring BK-8-7ABK-8-7BBKD-8-7D

Hydraulic filter ZJ32L FAX-100×10

Pressure Transmitters BSCYG901040CJ

connector\ZJ30DB 436.52.172.35 QS-3/8-8

Inhale air capsules AH330010535A00

Touring car hook YG180 Hook lower hook body 02023

DW40C070266666666 Repair kit

Brake device ZJ-30C rear axle brake chamber CP3530JL010/50002

Shear ram cutter body sealI 2FZ35704J

Release spring 417504-03

Boiler KDB-250FA Furnace 256ST

air filter BEZK183/45 440 55 394seal 3J1907

Hexagon socket head screw DQ70 M14×60 4.10.01.128

Steel tooth roller bit 2159mm HJ437G

Tin Bronze Shaft Sleeve HG075K34

V-BELT 4/8V-3750, 6 set x 4 Grooves=24EA; PN: 4/8V-3750

Brake device ZJ30C direction oil pump V10-1P 7P-11D20-LH

Inclinometer compass MWD fishing head 201711

DW40C0801wg28049719 One-way valve

Gas connector\ZJ50L QS-10

remote control room repair kit FKQ1280-8B

safety valve EQ140-3514E2-010

lever BK-5-7Ag

Inclinometer tolteq transformer 220V to 110V 630039

8P-1S/P55556-3/B2804 shift valve

cylinder head 1720834

oO-ring DQ70BS WDJHZ 143×8.6

 

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: ZJ70PSK Rig Transmission Gear Slippage

Problem: A drilling company reported gear slippage in their ZJ70PSK rig’s transmission, affecting drilling efficiency and posing a safety risk. Root Cause: Worn friction pads (29529492) for fifth and forward gears, reducing friction and causing slippage.Solution: Replaced with our Friction Pads 29529492 and adjusted the transmission to factory specifications. Result: Gear slippage eliminated, transmission performance restored, and downtime reduced to 2 hours—rig has operated smoothly for 8 months.

Case 2: ZJ32L Rig Hydraulic System Contamination

Problem: A ZJ32L rig’s hydraulic system was experiencing frequent valve failures due to contamination. Root Cause: Clogged hydraulic filter (original part) failing to remove debris from the fluid. Solution: Installed our Hydraulic Filter ZJ32L FAX-100×10 and flushed the hydraulic system. Result: System contamination eliminated, valve failure frequency reduced by 90%, and hydraulic system operation stabilized—downtime was 3 hours.

Case 3: KDB-250FA Boiler Valve Leakage

Problem: A KDB-250FA boiler’s valve was leaking, reducing boiler efficiency and posing a safety hazard. Root Cause: Worn valve seat ring (original part) failing to seal properly under high pressure. Solution: Replaced with our Valve Seat Ring 1767690 and re-seated the valve. Result: Leakage stopped completely, boiler efficiency restored, and safety hazards eliminated—downtime was 1.5 hours.

FAQ (Frequently Asked Questions)

Question

Answer

Are your parts compatible with ZJ series rigs (ZJ30-ZJ70) and KDB-250FA boilers?

Yes, all our parts are manufactured to match OEM specifications, ensuring 100% compatibility with ZJ30C/ZJ30DB/ZJ40/ZJ45/ZJ50L/ZJ70 rigs, KDB-250FA boilers, FKQ1280-8B remote control rooms, and slurry pumps. We use the same dimensional and material standards as original parts, so no modifications are needed during installation.

How can I find the right part if I only have the equipment model or application?

Simply provide us with your equipment model (e.g., ZJ70PSK, KDB-250FA) or application (e.g., transmission friction pad, hydraulic filter), and our technical team will match it to the correct part (e.g., 29529492, FAX-100×10). We also provide detailed product specifications and compatibility guides to help you verify.

Do you provide technical support for installation and troubleshooting?

Yes, we offer free technical support, including installation manuals, maintenance videos, and real-time assistance from our experienced engineers. If you encounter issues during installation or use, our team can help troubleshoot to minimize downtime and ensure proper part performance.

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., ZJ70PSK, KDB-250FA) with the corresponding part number (e.g., KQ-48, 1767690) for precise compatibility.

 Verify the part’s material and performance specifications (e.g., friction pads for transmissions must meet high-heat resistance standards; filters 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:

 Transmission gear slippage: Check friction pads (29529492) for wear—replace with our high-friction pads to restore gear performance.

 Hydraulic system contamination: Replace the hydraulic filter (FAX-100×10) and flush the system—our filters effectively remove contaminants to protect pumps and valves.

 Valve leakage: Inspect the valve seat ring (1767690) for wear—replace with our precision-machined seat ring to ensure a tight seal and prevent leakage.

Call to Action for Procurement

Whether you need a single component (e.g., Valve Seat Ring 1767690, Steel Tooth Roller Bit 2159mm HJ437G) or a full set of spare parts for your ZJ series rig, KDB-250FA boiler, or FKQ1280-8B remote control room, 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.


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