ZJ70, ZJ50, ZJ40, KDB-250FA, 2159mm SPQ172-101 Supply

Introduction

We focus on the production and supply of high-precision, high-durability spare parts for oil drilling rigs, industrial boilers, winches, and supporting hydraulic, pneumatic, and electrical equipment. Our product range fully covers core equipment models including ZJ30, ZJ40, ZJ50, ZJ50L, ZJ50LDB, ZJ70, ZJ70D, DQ70BSD, JC21D Winch, Boiler KDB-250FA, and BOMCO F1300/1600 Pump. Key components we supply include main carriages (ZJ70), bolts (M20*90/106.06.01.10), air filters (EF7-100), roller core bits (2159*105mm SPQ172-101), friction discs (W18-07-901), filter elements (1R0750, ZJ40 IX-250×80), inclinometer accessories (LHE type self-floating electronic single-point inclinometer rubber hanger φ32), high-pressure hose assemblies (ZJ70D 16II-12000), axial piston pumps (ZJ70D 80SCY14-1B), and boiler overheating preventers (KDB-250FA MS-IP). All products are manufactured in strict compliance with API 7K, API 16A, ASME BPVC, 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 industrial environments.

Targeted at oil drilling companies, oilfield exploration and maintenance teams, industrial boiler operators, equipment repair service providers, and heavy machinery operation enterprises, we accurately match the segmented needs of different users: For oil drilling teams, we provide wear-resistant, high-pressure, and high-temperature core components (such as 2159mm SPQ172-101 roller core bits, ZJ70D 80SCY14-1B axial piston pumps, and PSZ75 series brake parts) to ensure safe, efficient drilling operations and reduce non-productive downtime; for boiler operators, we supply high-safety, corrosion-resistant accessories (such as KDB-250FA MS-IP overheating preventers and gaskets) to maintain stable boiler operation and meet industrial production safety standards; for maintenance teams, we offer easy-to-install, modular, and long-life spare parts (such as filter elements, sealing rings, and repair kits) to reduce maintenance time, labor costs, and inventory pressure; for heavy machinery operators, we provide durable, high-load-bearing parts (such as ZJ50LDB working tongs cylinders and leaf springs) to adapt to high-intensity working conditions. 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 10 major categories and more than 75 core models, fully meeting the maintenance, replacement, and upgrade needs of oil drilling rigs, industrial boilers, winches, 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:

• Drilling Bit & Inclinometer Parts: Roller core bit (2159*105mm SPQ172-101), LHE type self-floating electronic single-point inclinometer rubber hanger (φ32)

• Hydraulic & Pneumatic Parts: Axial piston pump (ZJ70D 80SCY14-1B), high-pressure hose assembly (ZJ70D 16II-12000), high-pressure globe valve (ZJ40 PSZ75B BK-F-G3), high-pressure control valve check valve (DF65 105MPa), two-position four-way valve (4900300052), working tongs cylinder (ZJ50LDB PSZ75-3-02.0), oil pump device (512601010050002500), airbag (TPQ 124-05 pneumatic coupling), airbag assembly (AK7535020400)

• Brake & Transmission Parts: Friction disc (W18-07-901), ventilated clutch brake shoe assembly (LT1170*250T), braking device (ZJ50L), open clamp return spring (KQ-48), extension spring (BK-12-7A), leaf spring (T104-01803), chain (WG05706031), drum shaft (ZJ-50), winch drum (JC21D)

• Filter & Sealing Parts: Air filter (EF7-100), filter element (23046479, 1R0750, ZJ40 IX-250×80), gasket (AG37500113), sealing ring (BKD-SR-2), V-clamp fabric assembly seals (3GB.00 Cwith crack), oil cooler and pipeline repair kit (8T3387\115-3657), repair kit (2457339)

• Electrical & Control Parts: High voltage electrical equipment (WESTCODE UK thyristor N540CH16L00 0313), 8040D10-SP1 thickener potentiometer assembly (07-0539), electromagnetic valve (3018453), sullair pressure regulator switch (407778), 3512 dynamo (4N-3986), Rexroth valve (R431003701/P55380-1/7P-5S)

• Fasteners & Structural Parts: Main carriage (ZJ70), bolt (M20*90/106.06.01.10), nut (532615622S), retaining ring (K-7-6A9), U-clamp (7001050267), guard plate (DQ70BSD 9702022103), copper sets (ZJ40 PSZ75A-2-06.05), clamp frame (PSZ75B-70D-B-01-00), lower packing nut (ZJ30 SL2-2-06), discharge flange assembly (B600-32020003), guide wheel assembly (AZ000003040200)

• Pump & Impeller Parts: Impeller (86056), washer impeller (7300239), wear liner (CS33001-0303), dedicated piston (BOMCO F1300/1600 CP180)

• Boiler Parts: Boiler KDB-250FA overheating preventer (MS-IP)

• Clutch & Valve Parts: One-way clutch (ZJ-40), valve seat ring (1W5283), drum shaft plug (ZJ-50 G3/8″ 106.02.20.24), piston pin (0947134)

• Auxiliary Parts: Thread anaerobic locking adhesive (575403512L), connector (520901150026030000), spring (186284, 6883373)

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:

• Drilling Bit & Inclinometer Parts: The 2159*105mm SPQ172-101 roller core bit is made of high-chromium alloy, with a wear resistance of 4 times that of traditional bits, and can drill 1000-1500 meters in medium-hard to hard formations; the LHE type self-floating electronic single-point inclinometer rubber hanger (φ32) has a working temperature range of -40℃ to 120℃, ensuring stable fixing and accurate downhole measurement in harsh well conditions.

• Hydraulic & Pneumatic Parts: The ZJ70D 80SCY14-1B axial piston pump has a displacement of 80ml/r, working pressure up to 31.5MPa, and volumetric efficiency ≥95%, providing stable hydraulic power for ZJ70D drilling rigs; the ZJ70D 16II-12000 high-pressure hose assembly has a working pressure of 40MPa, high temperature resistance up to 120℃, and fatigue life of more than 100,000 times, ensuring safe hydraulic oil transmission.

• Brake & Transmission Parts: The W18-07-901 friction disc has a friction coefficient of 0.45-0.55, heat resistance up to 300℃, and service life of more than 2000 working hours, ensuring reliable braking of ZJ series drilling rigs; the WG05706031 chain has a tensile strength of ≥1500N/mm², suitable for high-load power transmission in winches and drilling rigs.

• Filter & Sealing Parts: The EF7-100 air filter has a filtration precision of 5μm, filtering efficiency up to 99.8%, protecting the air system from impurities; the 1R0750 filter element has a filtration precision of 10μm, effectively removing impurities in hydraulic oil and extending the service life of the hydraulic system by 30%.

• Electrical & Control Parts: The WESTCODE UK N540CH16L00 0313 thyristor has a rated voltage of 5400V, rated current of 1600A, meeting IEC 60747 standards, ensuring stable operation of high-voltage electrical systems; the 407778 sullair pressure regulator switch has a pressure regulation range of 0.6-1.0MPa, pressure regulation accuracy of ±0.05MPa, ensuring stable air pressure supply.

• Boiler Parts: The KDB-250FA MS-IP overheating preventer has a temperature control range of 0-150℃, response time of ≤0.2 seconds, and can automatically cut off the heating source when the boiler overheats, ensuring the safety of boiler operation.

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: Drilling bits, impellers, and friction discs are made of high-chromium alloy, wear-resistant steel, and other high-performance materials; structural parts (bolts, shafts, copper sets) are made of 40Cr, 20Mn2, and other high-quality alloy steels,经过 (after) quenching, tempering, and other heat treatment processes, with a hardness of HRC 35-45, tensile strength ≥800MPa, and impact toughness ≥60J/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 (gaskets, O-rings, V-clamp seals) adopt nitrile rubber (NBR), fluorine rubber (FKM), and asbestos-free 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 40%, improving maintenance efficiency.

5. Modular & Universal Design: For core components such as repair kits, filter elements, and gaskets, a modular design is adopted, which is convenient for partial replacement and maintenance, reducing maintenance costs; some universal parts (such as bolts, nuts, and sealing 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, industrial boiler operation, heavy machinery 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 (ZJ30, ZJ40, ZJ50, ZJ50L, ZJ50LDB, ZJ70, ZJ70D, DQ70BSD): Suitable for onshore and offshore drilling operations, able to withstand high temperature (-40℃ ~ 120℃), high pressure (up to 40MPa), strong vibration (vibration frequency 10-50Hz), and dusty, salty, and humid environments.

• Industrial Boilers (KDB-250FA): Applicable to industrial steam boilers, 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 & Pumps (JC21D Winch, BOMCO F1300/1600 Pump): Suitable for oilfield hoisting, mud circulation, and other operations, able to adapt to high load, frequent start-stop, and high-wear working conditions.

• Other Fields: High-voltage electrical parts are suitable for flammable and explosive oilfield environments; inclinometer parts are suitable for downhole measurement in oil and gas wells; auxiliary parts such as thread anaerobic locking adhesive are suitable for various equipment assembly and maintenance scenarios.

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 hydraulic valves, sealing parts, friction discs, and belts, 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 drilling bits and pump impellers, check for wear and damage every 200 working hours.

2. Cleaning & Replacement: Clean the surface of filters (EF7-100 air filter, 1R0750 filter element) every 50 working hours, and replace the filter element every 500 working hours; clean the impeller and wear liner of the pump every 800 working hours to remove sediment and impurities, ensuring smooth flow.

3. Lubrication Maintenance: Apply lubricating oil (No. 32 anti-wear hydraulic oil) to transmission parts (drum shaft, chain) every 200 working hours, and apply grease to bearings and guide wheels 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.

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); use thread anaerobic locking adhesive (575403512L) for bolt connections to prevent loosening. 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 heavy machinery 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 Hydraulic Pump Failure

Fault Phenomenon: During the operation of the ZJ70D drilling rig, the axial piston pump (80SCY14-1B) failed, resulting in insufficient hydraulic pressure and inability to drive the drill bit normally, affecting drilling progress.

Fault Cause: The pump’s internal wear was severe after 8000 working hours of use, and the volumetric efficiency dropped below 85%, leading to insufficient pressure output.

Maintenance Solution: Replace the axial piston pump with our ZJ70D 80SCY14-1B spare part, debug the hydraulic system, and test the pressure. After replacement, the hydraulic system pressure is stable at 30MPa, the pump’s volumetric efficiency is restored to 96%, and the drilling rig operates normally.

Case 2: ZJ50L Drilling Rig Brake Failure

Fault Phenomenon: The ZJ50L drilling rig’s brake system failed during hoisting operations, the friction disc (W18-07-901) slipped, and the drill string could not be fixed, posing a safety hazard.

Fault Cause: The friction disc was severely worn (wear thickness exceeding 3mm), and the friction coefficient decreased, leading to insufficient braking force.

Maintenance Solution: Replace the friction disc with our W18-07-901 spare part, adjust the brake clearance, and test the braking performance. After replacement, the braking torque reaches 14000N·m, the brake locks firmly, and the safety hazard is eliminated.

Case 3: KDB-250FA Boiler Overheating Alarm

Fault Phenomenon: The KDB-250FA boiler’s overheating preventer (MS-IP) continuously alarmed, and the boiler automatically shut down, affecting industrial production.

Fault Cause: The overheating preventer’s sensor was aged, leading to inaccurate temperature detection and false alarms.

Maintenance Solution: Replace the overheating preventer with our KDB-250FA MS-IP spare part, calibrate the temperature sensor, and test the alarm function. After replacement, the temperature detection accuracy is ±1℃, the boiler operates normally, and no false alarms occur.

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, and supporting equipment, covering core models such as ZJ70, ZJ50, ZJ40, KDB-250FA, and key parts such as 2159*105mm SPQ172-101 roller core bit, ZJ70D 80SCY14-1B axial piston pump, and KDB-250FA MS-IP overheating preventer. 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 parts, or other related products (such as ZJ70 main carriage, ZJ70D high-pressure hose assembly, 1R0750 filter element, 2159mm roller core bit, 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.