ZJ70, ZJ70D, ZJ45, ZJ40, DQ70 Supply

Introduction

We focus on the production and supply of high-precision, durable spare parts for oil drilling rigs, boilers, winches, inclinometers, and supporting hydraulic, pneumatic, electrical, and transmission equipment. Our product range fully covers core equipment models including ZJ40, ZJ45, ZJ70, ZJ70D, DQ70, DQ70BS, Boiler KDB-250FA, Boiler WNS0.5-0.7-Y(Q), and QDT Inclinometers. Key components we supply include push plate clutch assemblies (CJ-30 double ring clutch push plate A6680), Woodward actuator (8235-153), Senax pressure transmitter (DG1300-BZ-A-2-40/CD6), Weishaupt programmer (LAL2.25 for WNS0.5-0.7-Y(Q)), and ZJ70D filter (LXZ250×180). All products are manufactured in strict compliance with API 7K, API 16A, ISO 9001, and GB/T 30582 standards, with a factory inspection pass rate of 99.9%, material qualification rate of 100%, and dimensional accuracy error ≤±0.01mm. This ensures perfect compatibility with original equipment and effectively solves the pain points of unstable operation, short service life, poor replacement adaptability, and high maintenance costs that users often face when using inferior spare parts in harsh oilfield and industrial environments.

Targeted at oil drilling companies, oilfield exploration and maintenance teams, boiler operation enterprises, winch and inclinometer operators, and industrial equipment repair service providers, we accurately match the segmented needs of different users: For drilling rig operation teams, we provide high-load, wear-resistant core components (such as ZJ70 roller shafts, ZJ45 winch oil pump drive shafts, and DQ70 clamp tooth platens) to ensure safe, efficient drilling operations and reduce non-productive downtime; for boiler operators, we supply high-safety, stable-performance accessories (Weishaupt LAL2.25 programmers, KDB-250FA exhaust pipes) to maintain stable boiler operation and meet industrial production safety standards; for electrical and control teams, we offer precision control parts (OHMITE RHS1K0 potentiometers, Senax DG1300 pressure transmitters, SK-2Z16 DC control modules) to ensure accurate equipment control and monitoring; for maintenance teams, we provide modular repair kits (6V2900, 6V9895/1282922, 1144787) and easy-to-install sealing parts (front seal RJ11148.09.16.02, oil seal PD100*130*12) to simplify maintenance processes and reduce labor costs. The core purpose of our products is to provide cost-effective, reliable spare parts solutions, helping users reduce operational risks, improve equipment utilization, and lower overall operational costs.

Product Overview

Core Product Categories & Key Models

Our product portfolio covers 17 major categories and more than 105 core models, fully meeting the maintenance, replacement, and upgrade needs of oil drilling rigs, boilers, winches, inclinometers, and supporting equipment. Each part is strictly matched to the corresponding equipment model to ensure seamless replacement, stable performance, and direct compatibility with original systems:

• Clutch & Brake Parts: Push plate clutch assembly, CJ-30 double ring clutch push plate (A6680), ZJ-40 one-way clutch, ZJ-70 brake device working pliers No. 3 pin (DBS75-3-05), ventilated clutch spring (LT800*250T), release spring (417504-02)

• Drilling Rig & Transmission Parts: ZJ-70 roller shaft, ZJ-70 retaining ring (106.06.20.36), ZJ-45 winch oil pump drive shaft, ZJ-45 main carriage upper stage transmission chain lubrication system (024.21.35.00), ZJ70D three cylinder (Φ105×30), gear (P3100009AA), thrust bearing assembly (6839818)

• Hydraulic & Pneumatic Parts: Disc brake hydraulic station filter element (HDX-63×10), electromagnetic valve (QCK2422-BT08), explosion-proof single solenoid valve (512704151500020000), hydraulic control accessories, airway connector (R1″-M39*2G), one way swivel (XJ-L15), air source treatment duo (ZJ70D QST200)

• Sealing & Wear Parts: Front seal (RJ11148.09.16.02), oil seal (PD100*130*12), seal housing (DT11970), outer pressure ring (W24-50-305), gland assembly (F044K24)

• Filter Parts: ZJ70D filter (LXZ250×180), disc brake hydraulic station filter element (HDX-63×10)

• Boiler Parts: Boiler KDB-250FA exhaust pipe (KDJ-VS), Boiler WNS0.5-0.7-Y(Q) Weishaupt programmer (LAL2.25)

• Electrical & Control Parts: Senax pressure transmitter (DG1300-BZ-A-2-40/CD6), controller speed adjustment potentiometer (OHMITE RHS1K0), SK-2Z16 DC control module assembly (0811-07 1400 type), sensor (SDL-9000), high voltage nipple (2″), audible alarm (CE071053/XK06-014-00274)

• Dynamo & Battery Parts: Dynamo (873771/24V 35A, 0120400708/28V 35A, 0120469643/28V 55A), QDT inclinometer high temperature lithium battery (SYS 150 degrees)

• DQ70 Series Parts: Clamp tooth platen (DQ70 3 1/2″ 1.03.11.002), clamp holder (DQ70 5 1/2″ 1.03.09.004), DQ70BS back clamp centralizing ring (T750205141 260×43), DQ70 hexagon bolts (M16×150 4.10.02.072)

• Fasteners & Structural Parts: Adjusting washer (F2000000194), pin (T403-001), bolt (181415), dead rope fixer bolt (JY248-10), retaining ring (8E5237), housing bearing (20624-01-01)

• Pumps & Valves: Winch oil pump drive shaft (ZJ-45), high pressure globe valve (FKQ8006B Y10-140MPa), console manifold (1 TK30-01-00)

• Impellers & Deflectors: Impeller (FH4147A05), deflector assembly (641116108)

• Actuators & Accessories: Woodward actuator (8235-153), fitting (YK02-04-02-00)

• Repair Kits: Rear repair kit (6V2900), repair kit (6V9895/1282922), repair kit (1144787)

• Springs: Spring (4P100198), release spring (417504-02), ventilated clutch spring (LT800*250T)

• Riser & Weight Gauge Parts: Riser assembly (Z15010000002AA), weight gauge (JZ)

• Airbag & Inclinometer Parts: Airbag assembly (AK453502-0400), QDT inclinometer high temperature lithium battery (SYS 150 degrees)

Function Description

Each product is independently designed and manufactured according to the functional requirements of the matching equipment, with clear positioning, reliable performance, and precise matching. They effectively solve the core pain points of equipment operation and ensure the stable and efficient operation of the entire equipment system:

• Clutch & Brake Parts: The CJ-30 A6680 double ring clutch push plate has a maximum transmission torque of 4000N·m, wear resistance of more than 3000 working hours, ensuring smooth clutch engagement and disengagement; the ZJ-70 DBS75-3-05 brake working pliers pin has a tensile strength of ≥850MPa, ensuring stable operation of the brake device under high load.

• Electrical & Control Parts: The Senax DG1300-BZ-A-2-40/CD6 pressure transmitter has a measurement range of 0-40MPa, accuracy of ±0.5%, ensuring real-time and accurate monitoring of hydraulic system pressure; the OHMITE RHS1K0 speed adjustment potentiometer has a resistance range of 1KΩ, linearity of ±1%, enabling precise adjustment of controller speed.

• Boiler & Inclinometer Parts: The WNS0.5-0.7-Y(Q) Weishaupt LAL2.25 programmer has a control accuracy of ±1℃, ensuring stable boiler combustion control; the QDT inclinometer SYS 150-degree high temperature lithium battery has a service life of more than 5000 working hours, operating stably at 150℃, suitable for downhole high-temperature environments.

• Hydraulic & Sealing Parts: The HDX-63×10 disc brake hydraulic station filter element has a filtration precision of 10μm, filtering efficiency up to 99.8%, effectively removing impurities in hydraulic oil and protecting the hydraulic system; the PD100*130*12 oil seal has a pressure resistance of 31.5MPa, oil resistance, and high temperature resistance up to 120℃, ensuring tight sealing of the winch oil pump drive shaft.

• Drilling Rig & Transmission Parts: The ZJ-45 main carriage chain lubrication system (024.21.35.00) has a lubrication flow rate of 15L/min, ensuring sufficient lubrication of the transmission chain, reducing wear by 40%; the ZJ70D LXZ250×180 filter has a maximum flow rate of 250L/min, ensuring clean oil supply for ZJ70D drilling rigs.

• Dynamo & Battery Parts: The 0120469643/28V 55A dynamo has a rated power of 1.54kW, voltage stability of ±1V, ensuring stable power supply for oilfield electrical equipment; the SYS 150-degree high temperature lithium battery has a capacity of 10Ah, ensuring long-term power supply for the QDT inclinometer.

Structural Features

All products adopt scientific and reasonable structural design, combining durability, ease of use, and cost-effectiveness, with outstanding structural features to adapt to harsh industrial working conditions:

1. High-Quality Material Selection: Clutch push plates, gears, and bearings are made of high-chromium alloy, 40Cr alloy steel, and high-precision bearing steel; structural parts (shafts, flanges, pins) are made of 20Mn2, 35CrMo, and other high-quality alloy steels, after quenching, tempering, and other heat treatment processes, with a hardness of HRC 35-48, tensile strength ≥850MPa, and impact toughness ≥65J/cm², ensuring long-term use under high load and harsh conditions.

2. Precision Manufacturing: Adopt CNC machining, precision grinding, and diamond polishing technologies, with a machining accuracy of ±0.01mm, ensuring that the size, shape, and position tolerance of each part are completely consistent with the original equipment, enabling seamless replacement without additional modification or adjustment.

3. Sealing & Corrosion Resistance: Sealing parts (oil seals, front seals, seal housings) adopt nitrile rubber (NBR), fluorine rubber (FKM), and high-temperature resistant materials, with high temperature resistance up to 200℃, oil resistance, and corrosion resistance; the surface of metal parts is treated with galvanizing, electrophoresis, or spray painting, with a corrosion resistance grade of C5-M, adapting to humid, salty, and dusty oilfield and industrial environments.

4. Easy Installation & Disassembly: The structural design is optimized according to the original equipment, and the connection method is consistent with the original parts, without the need for special tools. The installation and disassembly time can be reduced by 45%, improving maintenance efficiency.

5. Modular & Universal Design: For core components such as repair kits, filter elements, and sealing rings, a modular design is adopted, which is convenient for partial replacement and maintenance, reducing maintenance costs; some universal parts (such as springs, bolts, retaining rings) can be used for multiple equipment models, improving product versatility and reducing user inventory pressure.

Application Working Conditions

Our products are widely used in oil drilling, oilfield exploration and development, boiler operation, winch operation, inclinometer downhole measurement, and other fields, and can stably adapt to various harsh working conditions, fully meeting the actual operation needs of users and ensuring stable equipment operation:

• Oil Drilling Rigs (ZJ40, ZJ45, ZJ70, ZJ70D, DQ70, DQ70BS): Suitable for onshore and offshore drilling operations, able to withstand high temperature (-40℃ ~ 150℃), high pressure (up to 140MPa), strong vibration (vibration frequency 10-50Hz), and dusty, salty, and humid environments.

• Industrial Boilers (KDB-250FA, WNS0.5-0.7-Y(Q)): Applicable to industrial steam production, able to adapt to high temperature (up to 200℃), high humidity, long-term continuous operation, and corrosive flue gas environments, ensuring the safety and stability of boiler operation.

• Winches & Inclinometers (QDT Inclinometer, ZJ-45 Winch): Suitable for oilfield hoisting, material transportation, and downhole measurement operations, able to adapt to high load, high temperature (up to 150℃ for inclinometers), and harsh outdoor environments.

• Hydraulic & Electrical Systems: Hydraulic control accessories, pressure transmitters, and DC control modules are suitable for flammable and explosive oilfield hydraulic and electrical systems, ensuring stable control and power transmission.

• Other Fields: Air source treatment devices, airbag assemblies, and riser assemblies are suitable for various oilfield equipment assembly and maintenance scenarios, adapting to harsh outdoor and indoor working conditions.

Maintenance & Care Suggestions

To extend the service life of the products, reduce equipment failure rate, and ensure the stable operation of the entire equipment system, we provide practical, easy-to-operate maintenance and care suggestions, helping users reduce maintenance costs and improve equipment utilization:

1. Regular Inspection: For clutch components, brake parts, hydraulic valves, sealing parts, and transmission shafts, conduct a comprehensive inspection every 100 working hours, check for wear, cracks, deformation, and leakage, and replace them in time if any abnormality is found; for filter elements, programmers, and pressure transmitters, check for wear and damage every 200 working hours.

2. Cleaning & Replacement: Clean the surface of filters (LXZ250×180, HDX-63×10) every 50 working hours, and replace the filter element every 500 working hours; clean the clutch push plate, gear, and roller shaft every 800 working hours to remove sediment and impurities, ensuring smooth operation.

3. Lubrication Maintenance: Apply No. 32 anti-wear hydraulic oil or special lubricating grease to transmission parts (winch oil pump drive shaft, gears, bearings) every 200 working hours, and apply grease to pins, retaining rings, and clamp parts every 300 working hours to reduce friction and wear, extending the service life of the parts.

4. Storage Requirements: Unused spare parts should be stored in a dry, ventilated, and clean warehouse, avoiding direct sunlight, rain, and contact with corrosive substances; the storage temperature should be controlled between -10℃ and 40℃, and the relative humidity should not exceed 75%; for sealing parts and lithium batteries, store them in sealed packaging to avoid aging; for electrical parts and control modules, keep them away from moisture and dust.

5. Installation & Fault Handling: When installing the parts, ensure that the connection is tight, and the torque meets the standard (refer to the original equipment manual); for hydraulic and pneumatic parts, check for air leakage before operation; for boiler and electrical parts, ensure correct wiring and grounding. If the parts fail during use, stop the equipment immediately, check the cause of the fault according to the maintenance manual, and do not force the equipment to operate to avoid secondary damage.

We supply the following spare parts:

On-Site Fault Maintenance Cases

We have accumulated rich on-site maintenance experience in long-term cooperation with oilfield, boiler, and industrial equipment enterprises. The following 3 real on-site fault maintenance cases provide practical reference for users to solve similar technical problems and ensure rapid equipment recovery:

Case 1: ZJ70D Drilling Rig Filter Failure

Fault Phenomenon: During the operation of the ZJ70D drilling rig, the hydraulic system pressure was unstable (28MPa ~ 32MPa), and the equipment operation was sluggish, leading to reduced drilling efficiency.

Fault Cause: The LXZ250×180 filter was blocked by impurities after 600 working hours of use, leading to poor oil circulation and insufficient hydraulic pressure.

Maintenance Solution: Replace the filter with our ZJ70D LXZ250×180 spare part, clean the hydraulic pipeline, and test the system pressure. After replacement, the hydraulic system pressure is stable at 30MPa, the equipment operation is smooth, and the drilling rig operates normally.

Case 2: WNS0.5-0.7-Y(Q) Boiler Programmer Failure

Fault Phenomenon: The WNS0.5-0.7-Y(Q) boiler’s Weishaupt LAL2.25 programmer failed, resulting in unstable boiler combustion, large temperature fluctuations (±5℃), and failure to meet production requirements.

Fault Cause: The programmer’s internal circuit board was damaged due to long-term high-temperature operation, leading to control failure.

Maintenance Solution: Replace the programmer with our Weishaupt LAL2.25 spare part, debug the boiler control system, and test the combustion performance. After replacement, the boiler temperature is stable (±1℃), combustion is normal, and production resumes.

Case 3: ZJ-45 Winch Oil Leakage

Fault Phenomenon: The ZJ-45 winch’s oil pump drive shaft had oil leakage, resulting in reduced lubricating oil level, increased friction of the drive shaft, and abnormal noise during operation.

Fault Cause: The PD100*130*12 oil seal was worn after 4500 working hours of use, leading to oil leakage.

Maintenance Solution: Replace the oil seal with our PD100*130*12 spare part, add lubricating oil to the standard level, and test the winch operation. After replacement, there is no oil leakage, the abnormal noise disappears, and the winch operates normally.

FAQ (Frequently Asked Questions)

Conclusion & Procurement Guide

We are committed to providing high-quality, reliable, and cost-effective spare parts for oil drilling rigs, industrial boilers, winches, inclinometers, and supporting equipment, covering core models such as ZJ70, ZJ70D, ZJ45, DQ70, WNS0.5-0.7-Y(Q), and key parts such as CJ-30 A6680 clutch push plate, Woodward 8235-153 actuator, Weishaupt LAL2.25 programmer, and ZJ70D LXZ250×180 filter. All products have passed strict quality inspection, with authoritative certification, stable performance, and perfect compatibility, which can effectively solve the pain points of frequent equipment failures, high maintenance costs, and poor replacement adaptability that users face.

Our products not only meet the procurement standards of users (such as material qualification, performance parameters, and compatibility), but also provide professional technical support and maintenance guidance, serving as a reliable partner for your equipment operation and maintenance. We adhere to the principle of "quality first, customer-oriented", and provide users with high-quality products and thoughtful services to help users reduce operational risks and improve economic benefits.

If you are in need of oil drilling rig spare parts, boiler accessories, winch components, or other related products (such as ZJ-45 winch oil seal, DQ70 clamp tooth platen, Senax pressure transmitter, 6V2900 repair kit, etc.), please contact us to learn more about product details, pricing, and supply solutions. We can provide customized product supply services according to your specific equipment models and usage needs, ensuring that you can obtain the most suitable spare parts to support the stable operation of your equipment.

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.