Parts Supply: ZJ30, ZJ40, ZJ50DB, ZJ70D, ZJ70DB-2

Introduction

We specialize in the production and supply of high-quality, OEM-matched replacement parts for oilfield drilling rigs, hydraulic systems, cranes, nitrogen trucks, boilers, inclinometers, and industrial equipment. Our product range fully covers core components for key equipment models, including ZJ30, ZJ40, ZJ40DB, ZJ50DB, ZJ70D, ZJ70DB drilling rigs/cranes, DQ005, DQ70BSC hydraulic systems, KDB-250FA, WNS1-1.25 boilers, YL-LWD/QDT inclinometers, and nitrogen trucks. Key products include Z1/2 830102-01-0200 troughway terminal pipe connectors, ZJ70D QSL+QIU-40 water separators, 9-1/2″ HJ437 insert carbide roller bits, 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 and hoisting operation teams, industrial boiler/hydraulic equipment 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/cranes, DQ series hydraulic systems, YL-LWD/QDT inclinometers, and insert carbide roller bits. For maintenance engineers, we provide easy-to-install, durable parts that reduce on-site repair time and labor intensity, whether servicing hydraulic valves, boiler controllers, inclinometer assemblies, or transmission components. 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 ZJ70D 245×275×18 sealing ring, a ZJ30 ZP520 pneumatic control valve, or a WNS1-1.25 boiler motherboard.

Product Overview

Key Product Categories & Matched Equipment Models

Our product portfolio covers a comprehensive range of components for oilfield drilling, hydraulic systems, cranes, nitrogen trucks, boilers, inclinometers, and industrial 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 & Crane Parts: Suitable for ZJ30, ZJ40, ZJ40DB, ZJ50DB, ZJ70D, ZJ70DB drilling rigs and ZJ-40DB cranes, including ZJ70D QSL+QIU-40 NPT1-1/2 water separators, ZJ70D 245×275×18 sealing rings, ZJ70 FST 170653-J automatic triple drain assemblies, ZJ50DB RD-162S18 regulators, ZJ30 ZP520 1/4 pneumatic control valves, ZJ40 QSL-1/8-8 L-type plug-in threaded joints, ZJ70D 5202122655 tee joints, ZJ70DB BK-FD check valves, ZJ-40DB one-way air-guiding faucets (XL-L15), and ZJ-70 brake device disc brake air pipelines (15000C).

• Hydraulic System Parts: Matching DQ005, DQ70BSC hydraulic systems, including DQ005.12.21.00 hydraulic motor assemblies, DQ70BSC 5202000430 articulated joints, DQ70BS M20×160 hex head bolts with holes, 3WH6B53 hydraulic reversing valves, QSC-80X56-S-56-CB double acting telescopic cylinders, Z2SF6-30/S2 throttle valves, 512601010096006000 gear pumps, and hydraulic control accessories.

• Inclinometer Parts: For YL-LWD, QDT inclinometers, including YL-LWD 981348 servo valve assemblies, QDT AS-218 sealing rings, and related inclinometer components.

• Drilling Bits & Transmission Parts: Including 9-1/2″ HJ437 insert carbide roller bits, connecting rods (2133190), main regulator springs (6839209), bushings (P1100319AA, PSZ75A-2-10), P28K9QJG/P28J9MQJG components, and FAHF6056QU1 AHF impellers.

• Engine & Fuel System Parts: Fuel injector assemblies (7E6408), oil nozzles (7W4990), belts (4N8221), dynamos (20466315), and related engine components.

• Filters & Oil Systems Parts: Air filters (BEZK183/45 440 55 394), oil filter assemblies (AH100101061000), filter elements (9N-6123, CH10931), 20619-01 oil seal covers, and floating water jackets (W24-11-306).

• Boiler Parts: For KDB-250FA, WNS1-1.25 boilers, including KDB-250FA KDC-104 main controllers and WNS1-1.25 BURNER-22 motherboards.

• Nitrogen Truck & Instrument Parts: Nitrogen truck DPS-1591DP-9999 pressure gauges, pressure transmitters (DG1300-BZ-A-2-150), SK-2Z16 T10 600:115V 140VA transformers, signal converters (KFD2-UT2-Ex1 223812), and XYM-5 density meter liquid cups (140cm³).

• Electrical & Pneumatic Parts: PLUG EX 16A 3POLE EEX DE IICT6 IP66 200-250V GHG5117306R0001 plugs, PS120 DH-0831/2 73 electric control valves, and related electrical components.

• Fasteners & Sealing Parts: Z1/2 830102-01-0200 troughway terminal pipe connectors, wear sleeves (AH1301010303), pins (T404-03005), set screws (000369*0205), imperial connectors (520901150024070000), and sealing rings (AS-218, 245×275×18).

• Pumps & Repair Kits: Spray pump assemblies (AH1301010800), 8T6678 middle and lower structure repair kits, and 480101150020020000 normally open brake repair kits.

• Structural & Other Parts: Frame boards (B1032D21) and related equipment structural components.

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 & Crane Parts

ZJ70D QSL+QIU-40 water separators remove moisture from air or fluid systems, protecting ZJ70D drilling rig components from corrosion. ZJ70 FST 170653-J automatic triple drain assemblies discharge condensate automatically, ensuring smooth operation of ZJ70 drilling rigs. ZJ50DB RD-162S18 regulators maintain stable pressure in ZJ50DB hydraulic systems, while ZJ30 ZP520 pneumatic control valves regulate air flow for ZJ30 drilling rig operations. ZJ-40DB XL-L15 one-way air-guiding faucets control air direction, supporting crane operation, and ZJ-70 disc brake air pipelines deliver air to brake systems, ensuring reliable braking.

Hydraulic & Pump Parts

DQ005.12.21.00 hydraulic motor assemblies power DQ005 hydraulic systems, enabling smooth movement of equipment components. DQ70BSC 5202000430 articulated joints connect hydraulic lines, allowing flexible movement. 3WH6B53 hydraulic reversing valves change fluid flow direction, controlling hydraulic cylinder movement. QSC-80X56-S-56-CB double acting telescopic cylinders lift and lower equipment parts, while 512601010096006000 gear pumps supply hydraulic fluid, maintaining system pressure. Spray pump assemblies (AH1301010800) deliver spray fluid for equipment cleaning or cooling.

Inclinometer & Drilling Bit Parts

YL-LWD 981348 servo valve assemblies control inclinometer movement, ensuring accurate measurement of drilling direction. QDT AS-218 sealing rings provide reliable sealing for QDT inclinometers, preventing dust and moisture entry. 9-1/2″ HJ437 insert carbide roller bits drill through rock and soil, enabling efficient oilfield exploration, while connecting rods (2133190) transmit power to drilling components.

Boiler & Instrument Parts

KDB-250FA KDC-104 main controllers regulate boiler operation, ensuring safe and efficient heating. WNS1-1.25 BURNER-22 motherboards control boiler burners, maintaining stable combustion. Nitrogen truck DPS-1591DP-9999 pressure gauges monitor nitrogen pressure, while DG1300-BZ-A-2-150 pressure transmitters send pressure data to control systems. SK-2Z16 transformers convert voltage, supporting electrical equipment operation, and KFD2-UT2-Ex1 signal converters process sensor signals, ensuring accurate data transmission.

Filters & Sealing Parts

BEZK183/45 air filters remove impurities from air, protecting engine and hydraulic components. Oil filter assemblies (AH100101061000) and filter elements (9N-6123, CH10931) maintain oil cleanliness, extending component service life. Z1/2 830102-01-0200 troughway terminal pipe connectors ensure secure, leak-free connection of pipes, while ZJ70D 245×275×18 sealing rings prevent fluid leakage in hydraulic systems. Wear sleeves (AH1301010303) protect equipment parts from wear, extending service life.

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, ZJ70D QSL+QIU-40 water separators, DQ70BSC 5202000430 articulated joints, YL-LWD 981348 servo valve assemblies, and WNS1-1.25 BURNER-22 motherboards 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 drilling bits, connectors, and bolts, wear-resistant carbide for roller bits, heat-resistant materials for boiler components, and oil-resistant rubber for sealing rings. 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, quick-connect pipe connectors and plug-in threaded joints enable fast installation and disassembly; filter elements and sealing rings are easy to replace. Even complex parts like hydraulic reversing valves and servo valve assemblies have intuitive mounting points, reducing maintenance time.

• Safety-Critical Design: Parts related to equipment safety—such as ZJ70DB check valves, boiler main controllers, and normally open brake repair kits—adopt multiple safety structures to prevent failure during high-load or emergency operations, protecting operators and equipment. Explosion-proof plugs (GHG5117306R0001) ensure safe operation in hazardous environments.

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 & Crane Scenarios

Suitable for onshore and offshore drilling operations (desert, plateau, coastal) with ZJ30, ZJ40, ZJ50DB, ZJ70D, ZJ70DB drilling rigs and ZJ-40DB cranes. Products such as 9-1/2″ HJ437 drill bits, ZJ70D water separators, and ZJ-70 brake air pipelines can withstand high temperature, high humidity, dust, vibration, and high pressure, ensuring continuous drilling and crane operation.

Hydraulic & Pump Scenarios

For DQ005, DQ70BSC hydraulic systems and spray pumps. Hydraulic motors, reversing valves, and pump assemblies adapt to high-pressure fluid and high-vibration environments, ensuring stable hydraulic system and pump operation.

Boiler & Industrial Scenarios

For KDB-250FA, WNS1-1.25 boilers and industrial equipment. Boiler controllers, motherboards, and electrical parts adapt to high-temperature industrial environments, ensuring safe and efficient boiler operation and stable electrical system performance.

Inclinometer & Instrument Scenarios

For YL-LWD, QDT inclinometers and nitrogen trucks. Inclinometer servo valves, sealing rings, and pressure gauges adapt to harsh field conditions, ensuring accurate inclinometer measurement and reliable nitrogen truck operation.

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 ZJ70D 245×275×18 sealing rings, DQ70BSC hydraulic hoses, brake air pipelines (15000C), and electrical connectors daily. Ensure there is no looseness, leakage, or damage. For air filters (BEZK183/45), filter elements, and oil seal covers (20619-01), check for clogging or wear—replace them immediately if issues are found to avoid component damage. Inspect pressure gauges and transmitters for accurate readings.

Regular Cleaning & Replacement

Replace filter elements (9N-6123, CH10931) and oil filter assemblies (AH100101061000) every 25-30 operation hours to maintain fluid cleanliness. Clean 9-1/2″ HJ437 drill bits regularly to remove debris, ensuring drilling efficiency. Replace belts (4N8221) and sealing rings (AS-218) if signs of wear are present, ensuring engine and inclinometer performance. Clean water separators (ZJ70D QSL+QIU-40) to remove accumulated moisture.

Lubrication Maintenance

Apply API-certified lubricating oil to moving parts such as DQ005 hydraulic motor assemblies, 512601010096006000 gear pumps, and connecting rods (2133190) regularly. Follow the equipment manual for lubricant type and quantity to reduce friction loss and extend part service life. Check main regulator springs (6839209) for elasticity and replace if worn.

Storage & Handling

Store unused parts in a dry, ventilated, and clean warehouse, away from moisture, dust, and corrosive substances. Precision parts like YL-LWD 981348 servo valve assemblies, KFD2-UT2-Ex1 signal converters, and drill bits should be kept in sealed packaging to avoid damage. When handling heavy parts (e.g., hydraulic motor assemblies, frame boards), use appropriate tools to prevent collision and deformation.

Replacement Standards

Replace parts immediately if they show the following signs: excessive wear (e.g., drill bits, wear sleeves AH1301010303), deformation (e.g., articulated joints), leakage (e.g., sealing rings), or failure to meet operational requirements (e.g., boiler controllers, pneumatic control valves).

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 Air System Moisture Buildup

Fault Phenomenon: The ZJ70D drilling rig’s air system had excessive moisture buildup, leading to corrosion of components and unstable operation. Fault Analysis: The ZJ70D QSL+QIU-40 water separator was clogged, failing to remove moisture effectively. Solution: Replace the water separator with our ZJ70D-specific QSL+QIU-40 NPT1-1/2 part. After installation, moisture buildup was eliminated, and the air system operated normally. Key Point: Using OEM-matched water separators ensures clean air supply and protects drilling rig components.

Case 2: DQ70BSC Hydraulic System Power Loss

Fault Phenomenon: The DQ70BSC hydraulic system experienced power loss, leading to slow equipment movement. Fault Analysis: The DQ70BSC 5202000430 articulated joint was worn and leaking hydraulic fluid. Solution: Replace the articulated joint with our DQ70BSC-specific 5202000430 part. After installation, hydraulic fluid leakage was stopped, and the system regained full power. Key Point: Model-matched articulated joints ensure reliable hydraulic connection and system performance.

Case 3: WNS1-1.25 Boiler Combustion Failure

Fault Phenomenon: The WNS1-1.25 boiler failed to ignite and maintain combustion, affecting heating efficiency. Fault Analysis: The boiler’s BURNER-22 motherboard was faulty, failing to control the burner properly. Solution: Replace the motherboard with our WNS1-1.25-specific BURNER-22 part. After installation, the boiler ignited normally, and combustion was stable. Key Point: Using OEM-matched boiler motherboards ensures reliable boiler operation and heating efficiency.

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., ZJ70DB, WNS1-1.25) and the original part number (e.g., BK-FD check valve, BURNER-22 motherboard) 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. For explosion-proof parts, ensure compliance with EEX DE IICT6 standards.

Technical Reference Standards

Our products comply with international and industry standards to ensure safety and performance: API 7-1 for drilling rig parts and roller bits, API 16C for hydraulic components, ISO 9001 for quality management, and OEM specifications for all replacement parts. Explosion-proof plugs meet EEX DE IICT6 IP66 standards, and boiler parts comply with industrial boiler safety standards. 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/crane parts, DQ series hydraulic components, YL-LWD/QDT inclinometer parts, or WNS/KDB boiler components, 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.

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.