ZJ30C, ZJ40CZ, ZJ70, WNS2-1.25-Y, JQHSB-50*12 Supply

Introduction

We focus on the production and supply of high-precision, durable spare parts for oil drilling rigs, industrial boilers, steam winches, cranes, air compressors, and supporting hydraulic, pneumatic, electrical, and transmission equipment. Our product range fully covers core equipment models including ZJ30C, ZJ40CZ, ZJ70, ZJ70DB, DQ70, DQ70BSD, JC45 Steam Hoist, JQHSB-50*12 Steam Winch, Crane TC-135B, Boiler WNS2-1.25-Y, WNS0.5-0.8-Y/Q, and MWD Inclinometers. Key components we supply include nut housings (658404702), boiler fan motors (SIMAL VIGRRANO for WNS2-1.25-Y), brake valve handles (512705050000100000), MWD servo valve assemblies (406112), hydraulic oil pumps (MHP 350A 578MEA 207 for ZJ40CZ), ceramic cylinder liners (Y001-100160), and Siemens LAC2.25 program-controlled switches (for WNS0.5-0.8-Y/Q). 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, crane and winch operators, and industrial equipment repair service providers, we accurately match the segmented needs of different users: For drilling rig operation teams, we provide high-pressure, wear-resistant core components (such as ZJ30C brake devices, ZJ40CZ hydraulic oil pumps, and MWD servo valve assemblies) to ensure safe, efficient drilling operations and reduce non-productive downtime; for boiler operators, we supply high-safety, energy-efficient accessories (SIMAL VIGRRANO fan motors, Siemens program-controlled switches) to maintain stable boiler operation and meet industrial production safety standards; for crane and winch operators, we offer high-load-bearing, reliable parts (TC-135B crane pulley bearings, JQHSB-50*12 double brake components) to ensure stable hoisting and winching operations; for maintenance teams, we provide modular repair kits (air compressor repair kit 229417) and easy-to-install sealing parts (CAM078HS1 seal, 5303930200 seal) 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 15 major categories and more than 95 core models, fully meeting the maintenance, replacement, and upgrade needs of oil drilling rigs, boilers, steam winches, cranes, 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:

• Brake System Parts: Brake valve handle (512705050000100000), ZJ-70 brake device quick connector (H2-63), ZJ-70 disc brake button valve (K23RJ-L8-J), PSZ75 disc brake working cylinder (Sg-00), ZJ30C brake device and box gear (BJX260), JQHSB-50*12 steam winch double brake, forward gear friction plate (29537887)

• Hydraulic & Pneumatic Parts: Lifting hydraulic device (ZJ30C), ZJ30C shuttle valve (OS-1/2/4900650003), R10-PH-10/55707 overflow valve, three-position four-way valve (2-HA-2/P059335/IA298), foot control two position three way valve (IA-198/2-BA-1), LMD solenoid valve assembly (972182), MWD inclinometer servo valve assembly (406112)

• Pump & Compressor Parts: Hydraulic oil pump (MHP 350A 578MEA 207 for ZJ40CZ), gear pumps (576065372M), lubricating oil pump (5126000441), air compressor repair kit (229417), oil cooler (7C0145)

• Sealing & Wear Parts: CAM078HS1 seal, seal half ring (F751.14.04.02.02.00), Yx-type sealing ring (5300300053), seal (B220*250*15G 5303930200), sealing ring (BK-SR-3), oil deflector ring (ZLYQC850-94A-300), ceramic cylinder liner (Y001-100160)

• Transmission & Shaft Parts: Roller shaft (ZJ-30C), drum shaft (JC45 steam hoist 116.17.00), Z34MN5 gear (20CRNI2MOA 9702020101), bearing (4500100224, 22219C), crane pulley bearing (TC-135B 101.29.00.02), one-way clutch (ZJ-30C)

• Filter Parts: ZJ30C paper filter (ZX-400*80), filter element (1R-0770), ZJ-30C pressure filter (HDX-25*10)

• Boiler Parts: Boiler WNS2-1.25-Y fan motor (SIMAL VIGRRANO), boiler WNS0.5-0.8-Y/Q program-controlled switch (SIEMENS LAC2.25)

• Winch & Hoist Parts: Steam winch (JQHSB-50*12 5T double brake), high speed water air hoist (ZJ70 116.18A.00), JC45 steam hoist drum shaft (116.17.00)

• Crane Parts: Crane pulley bearing (TC-135B 101.29.00.02), crane assembly (Z04120000001AA)

• Fasteners & Structural Parts: Nut housing (658404702), single ear stop pad (DQ70BSD 4205010151), elastic guide sleeve (BKD-7-6D3), package (B111Q05A), cotter pin (B11010020300001), pin (DQ70 1.11.01.005), circlip for shaft (BKD-12-Q4)

• Electrical Parts: Flexible power cable (GEXOL INSULATED 37-102-414 AmerCable), cable inflator (1-0.27/150A)

• Instrument & Gauge Parts: Dual Scale Seismic Pressure Gauge (575555333A)

• Tools & Accessories: Pliers (DBS75-2-02), quick plug tee (ZJ70DB QST-6), return spring (universal ZS-585-MP)

• Preventer Parts: Preventer (DQ026.02.00)

• Inclinometer Parts: MWD inclinometer compass servo valve assembly (406112)

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:

• Brake System Parts: The ZJ-70 K23RJ-L8-J disc brake button valve has a working pressure of 31.5MPa, response time of ≤0.25 seconds, ensuring rapid control of the disc brake system; the JQHSB-50*12 steam winch double brake provides dual safety protection, with a braking torque of 18000N·m, ensuring stable hoisting of 5T loads.

• Hydraulic & Pneumatic Parts: The ZJ40CZ MHP 350A 578MEA 207 hydraulic oil pump has a displacement of 350ml/r, working pressure up to 31.5MPa, volumetric efficiency ≥96%, providing stable hydraulic power for ZJ40CZ drilling rigs; the MWD 406112 servo valve assembly has a control accuracy of ±0.05mm, ensuring precise control of the inclinometer compass.

• Boiler Parts: The WNS2-1.25-Y SIMAL VIGRRANO fan motor has a power of 7.5kW, rated speed of 1480r/min, energy efficiency grade of IE3, reducing energy consumption by 15% compared to ordinary motors; the WNS0.5-0.8-Y/Q Siemens LAC2.25 program-controlled switch has a control accuracy of ±1℃, ensuring stable boiler temperature control.

• Sealing & Wear Parts: The CAM078HS1 seal is made of high-temperature fluorine rubber, with a temperature resistance of up to 200℃ and oil resistance, ensuring tight sealing of hydraulic components without leakage; the Y001-100160 ceramic cylinder liner has a hardness of HRC 85, wear resistance 6 times that of metal liners, service life of more than 10000 working hours.

• Transmission & Shaft Parts: The TC-135B 101.29.00.02 crane pulley bearing has a maximum load-bearing capacity of 8000kg, service life of more than 4000 working hours, ensuring stable operation of crane pulleys; the Z34MN5 9702020101 gear is made of 20CrNi2MoA alloy steel, with a tensile strength of ≥950MPa, ensuring stable power transmission.

• Filter & Pump Parts: The 1R-0770 filter element has a filtration precision of 5μm, filtering efficiency up to 99.8%, effectively removing impurities in lubricating oil and extending the service life of engines and hydraulic components; the 5126000441 lubricating oil pump has a flow rate of 50L/min, ensuring sufficient lubrication of transmission components.

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: Brake components, gears, and bearings are made of high-chromium alloy, 20CrNi2MoA alloy steel, and high-precision ceramic materials; structural parts (shafts, nut housings, pins) are made of 40Cr, 20Mn2, 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 (O-rings, Yx-type seals, half seals) 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 air compressor 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 return springs, quick connectors) 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, crane hoisting, steam winch operation, 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 (ZJ30C, ZJ40CZ, ZJ70, ZJ70DB, DQ70, DQ70BSD): Suitable for onshore and offshore drilling operations, able to withstand high temperature (-40℃ ~ 150℃), high pressure (up to 31.5MPa), strong vibration (vibration frequency 10-50Hz), and dusty, salty, and humid environments.

• Industrial Boilers (WNS2-1.25-Y, WNS0.5-0.8-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 & Hoists (JQHSB-50*12 Steam Winch, JC45 Steam Hoist, ZJ70 High Speed Water Air Hoist): Suitable for oilfield hoisting, material transportation, and well completion operations, able to adapt to high load, frequent start-stop, and harsh outdoor environments.

• Cranes & Hydraulic Equipment (TC-135B Crane, ZJ30C Lifting Hydraulic Device): Suitable for oilfield crane hoisting and drilling rig lifting operations, able to adapt to high load and stable power transmission requirements.

• Other Fields: MWD inclinometer parts are suitable for downhole measurement in oil and gas wells; air compressor parts are suitable for oilfield air supply systems; electrical cables are suitable for flammable and explosive oilfield electrical connections, ensuring stable power transmission.

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 brake components (brake valves, working cylinders, friction plates), hydraulic pumps, sealing parts, and bearings, 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 boiler parts, filter elements, and MWD servo valves, check for wear and damage every 200 working hours.

2. Cleaning & Replacement: Clean the surface of filters (ZX-400*80 paper filter, 1R-0770 filter element, HDX-25*10 pressure filter) every 50 working hours, and replace the filter element every 500 working hours; clean the gear, roller shaft, and oil deflector ring every 800 working hours to remove sediment and impurities, ensuring smooth operation.

3. Lubrication Maintenance: Apply lubricating oil (No. 32 anti-wear hydraulic oil) to transmission parts (gear pumps, bearings, drum shafts) every 200 working hours, and apply grease to crane pulley bearings, roller shafts, and gears 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 O-rings, store them in sealed packaging to avoid aging; for electrical cables and Siemens program-controlled switches, 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: ZJ30C Drilling Rig Hydraulic Filter Failure

Fault Phenomenon: During the operation of the ZJ30C drilling rig, the lifting hydraulic device operated slowly, and the system pressure was unstable (25MPa ~ 30MPa), affecting the lifting efficiency.

Fault Cause: The ZX-400*80 paper filter was blocked by impurities after 600 working hours of use, leading to poor oil circulation and insufficient hydraulic pressure.

Maintenance Solution: Replace the paper filter with our ZJ30C ZX-400*80 spare part, clean the hydraulic pipeline, and test the lifting device. After replacement, the hydraulic system pressure is stable at 28MPa, the lifting speed is restored to the standard level, and the drilling rig operates normally.

Case 2: WNS2-1.25-Y Boiler Fan Motor Failure

Fault Phenomenon: The WNS2-1.25-Y boiler’s SIMAL VIGRRANO fan motor failed to start, resulting in poor boiler ventilation, increased flue gas temperature, and forced shutdown of production.

Fault Cause: The motor’s internal winding was burned due to long-term overload operation, leading to failure to start.

Maintenance Solution: Replace the fan motor with our WNS2-1.25-Y SIMAL VIGRRANO spare part, check the power supply and circuit, and test the motor operation. After replacement, the motor starts normally, the boiler ventilation is restored, and production resumes.

Case 3: JQHSB-50*12 Steam Winch Brake Failure

Fault Phenomenon: The JQHSB-50*12 steam winch’s double brake failed during hoisting operations, the winch could not lock firmly, and the load slipped, posing a safety hazard.

Fault Cause: The forward gear friction plate (29537887) was severely worn (wear thickness exceeding 5mm), and the friction coefficient decreased, leading to insufficient braking force.

Maintenance Solution: Replace the friction plate with our 29537887 spare part, adjust the brake clearance, and test the braking performance. After replacement, the brake locks firmly, the load does not slip, and the winch operates safely.

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, steam winches, cranes, and supporting equipment, covering core models such as ZJ30C, ZJ40CZ, ZJ70, WNS2-1.25-Y, JQHSB-50*12, and key parts such as MHP 350A hydraulic oil pump, SIMAL VIGRRANO fan motor, 1R-0770 filter element, and Y001-100160 ceramic cylinder liner. 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, steam winch components, or other related products (such as ZJ-70 disc brake button valve, TC-135B crane pulley bearing, Siemens LAC2.25 program-controlled switch, 29537887 friction plate, 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.