ZJ30, ZJ40, ZJ50, ZJ70, DQ70BS, DQ70BSD Supply

Introduction

We focus on the production and supply of high-precision, durable spare parts for oil drilling rigs, inclinometers (MWD/LHE type), swivels, gearboxes, disc brakes, and supporting hydraulic, pneumatic, electrical, and transmission equipment. Our product range fully covers core equipment models including ZJ30, ZJ40, ZJ50, ZJ70, DQ70BS, DQ70BSD, Swivel SL160, LHE Type Self-Floating Electronic Single-Point Inclinometer, and MWD Inclinometer. Key components we supply include Inclinometer compass MWD sieve cavity 406092, ZJ70 C2 type disc brake sealing ring PSZ75-2-25.9, 17-1/2″ MP2G steel tooth roller bit, DQ70BSD driller’s floor communication explosion-proof cable assembly 9704029404, and ZJ30 HL-2-X two-position three-way reset handle. 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, inclinometer (MWD/LHE) users, drilling rig operation teams, 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 ZJ50 roller shafts, ZJ70 turntable cat head shafts, 17-1/2″ MP2G steel tooth roller bits, and ZJ70 C2 type disc brake blocks) to ensure safe, efficient drilling operations and reduce non-productive downtime; for inclinometer users, we supply precision parts (MWD sieve cavity 406092, LHE type self-floating electronic single-point inclinometer buoyancy chamber φ48-LHSF-26D) to ensure accurate downhole measurement and stable inclinometer operation; for swivel and gearbox operators, we offer matching components (swivel SL160 central tube SL160-08, gear hub W36-01-302, gear pump 4900550085) to maintain equipment stability; for maintenance teams, we provide repair kits (6V1169, 4G4972), filter elements (3842043, FS1000), and easy-to-install fasteners (track shoe bolts 6V1723, hexagon fit bolts CS33001-0214) 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 21 major categories and more than 125 core models, fully meeting the maintenance, replacement, and upgrade needs of oil drilling rigs, inclinometers, swivels, gearboxes, disc brakes, 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:

• Inclinometer & MWD Parts: Inclinometer compass MWD sieve cavity 406092, Inclinometer LHE type self-floating electronic single-point inclinometer buoyancy chamber φ48-LHSF-26D

• Hydraulic & Pneumatic Valves: IA162 air control valve, relief valve 512604010001202000, shuttle valve IA341, brake valve 512704900000002000, two-way relay ZJ40 K24JQ, two-position three-way reset handle ZJ30 HL-2-X, selector valve D-1330-6/50140, Y/M0004 start valve block, high pressure ball valve YQ2-32H-NPT 1-1/2″, plug valve Z03111700002AA

• Fasteners & Structural Parts: Lo sets P1300165AA, track shoe bolts 6V1723, hexagon fit bolts with split pin hole on shank (right P/N-CS33001-0214), short link chain for lifting T203-0120002, fixer T100-00600B1, blocking board DBS75-2-17, CH1032 frame plate

• Repair Kits & Filters: Engine repair kit 6V1169, filter element 3842043, repair kit 4G4972, filter element FS1000, HEPA filter 29510910 (P550223)

• Couplings & Bearings: Coupling 520901040906060000, marin bearing bus, magnetic drive copper bearing 08-0139, fan bearing 3L1425/6307C3

• Swivel & Drilling Parts: Central tube SL160-08 (Trunk) for the swivel SL160, steel tooth roller bit 17-1/2″ MP2G

• Disc Brake & Brake Parts: Disc brake ZJ70 C2 type sealing ring PSZ75-2-25.9, PSZ-75A disc brake block, friction disc W30-07-902

• Sealing Parts: O-ring 033-6036, sealing ring 530301291300000101, sealing ring 3T-3601, piston rubber AH000004-080200-170, static friction copper plate 416527

• Pipes & Hoses: Turntable cat head shaft ZJ-70 hydraulic cat head oil inlet pipeline JB1885-77, headframe hydraulic tube P/N 9705322000, hose joint buckle sleeve DQ70BS YJ2536 M36×2

• Pumps & Gear Parts: Gear pump 4900550085, gear hub W36-01-302, gearbox output shaft oil seal P160064291

• Electrical & Control Parts: Pneumatic anti-shock pressure transmitter YPQ-25, explosion-proof plug TY57J20ZYA, explosion-proof plug 32A-6H 3P+ MENNEKES, explosion-proof cable assembly for driller’s floor communication DQ70BSD 9704029404, barriers NPEXA-C311P

• Tools & Instruments: Gap adjustment wrench 400101281002000000, measuring instrument 8040D10-SP1

• Mechanical Parts: DH2083U38 throatbush, valve plate body F751.14.04.08.01, roller shaft ZJ-50, ferrule L106.02.50.26 φ90/60*30, suction flange AH1001010526, auxiliary pulley assembly T203-00200, locking spool 6834453

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:

• Inclinometer & MWD Parts: The MWD 406092 sieve cavity has a filtration precision of 10μm, ensuring clean fluid circulation for the inclinometer compass and stable downhole measurement; the LHE type φ48-LHSF-26D buoyancy chamber has a buoyancy of 150N, ensuring the inclinometer floats stably in downhole environments and maintains accurate positioning.

• Drill Bits & Drilling Parts: The 17-1/2″ MP2G steel tooth roller bit is made of high-strength alloy steel, suitable for drilling in soft to medium rock formations, with a drilling speed of 15-20m/h and service life of more than 650 drilling meters, ensuring efficient drilling operations.

• Disc Brake & Brake Parts: The ZJ70 C2 type PSZ75-2-25.9 sealing ring is made of fluorine rubber, pressure resistance of 31.5MPa, high temperature resistance up to 180℃, ensuring tight sealing of the ZJ70 C2 type disc brake and preventing oil leakage; the PSZ-75A disc brake block has a friction coefficient of 0.45-0.55, heat resistance up to 300℃, ensuring reliable braking performance.

• Hydraulic & Pneumatic Parts: The IA162 air control valve has a rated pressure of 1.0MPa, response time of ≤0.15 seconds, ensuring precise control of pneumatic systems; the YPQ-25 pneumatic anti-shock pressure transmitter has a measurement range of 0-25MPa, accuracy of ±0.5%, suitable for harsh oilfield shock environments.

• Filters & Sealing Parts: The HEPA filter 29510910 (P550223) has a filtration efficiency of 99.97% for particles ≥0.3μm, ensuring clean air supply for electrical equipment; the 3T-3601 sealing ring has a pressure resistance of 25MPa, oil resistance, and good sealing performance for hydraulic components.

• Swivel & Gear Parts: The swivel SL160 central tube SL160-08 has a tensile strength of ≥900MPa, ensuring stable fluid transmission for the SL160 swivel; the 4900550085 gear pump has a flow rate of 50L/min, pressure resistance of 25MPa, ensuring stable hydraulic power supply for drilling rig systems.

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: Steel tooth roller bits, gear hubs, and roller shafts are made of high-chromium alloy, 40Cr, and 35CrMo alloy steels; sealing parts are made of nitrile rubber (NBR), fluorine rubber (FKM), and high-temperature resistant materials; fasteners are made of high-strength carbon steel and alloy steel, 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 have 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 bolts, O-rings, and bearings) 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, inclinometer downhole measurement, swivel operation, gearbox operation, disc brake 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, ZJ70, DQ70BS, DQ70BSD): Suitable for onshore and offshore drilling operations, able to withstand high temperature (-40℃ ~ 150℃), high pressure (up to 31.5MPa for hydraulic parts), strong vibration (vibration frequency 10-50Hz), and dusty, salty, and humid environments.

• Inclinometers (MWD, LHE Type): Inclinometer parts are suitable for downhole measurement in oil and gas wells, able to adapt to high temperature (up to 120℃) and high pressure (up to 20MPa), ensuring accurate measurement in harsh downhole environments.

• Swivels (SL160) & Gearboxes: Suitable for oilfield drilling fluid transmission and power transmission, able to adapt to high load, high speed, and continuous operation, ensuring stable equipment operation.

• Disc Brakes & Pneumatic Systems: Disc brake parts are suitable for drilling rig hoisting and braking operations, able to adapt to high temperature, high pressure, and frequent braking; pneumatic parts are suitable for oilfield pneumatic control systems, ensuring reliable control in flammable and explosive environments.

• Other Fields: Hydraulic valves, gear pumps, and filters are suitable for various oilfield hydraulic systems; explosion-proof electrical parts are suitable for flammable and explosive oilfield electrical systems, adapting to harsh outdoor and industrial 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 drill bits, disc brake blocks, roller shafts, hydraulic valves, sealing parts, and inclinometer components, 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, pressure transmitters, and bearings, check for wear and damage every 200 working hours.

2. Cleaning & Replacement: Clean the surface of HEPA filters (29510910) and hydraulic filters (3842043, FS1000) every 50 working hours, and replace the filter element every 500 working hours; clean the steel tooth roller bit, throatbush, and disc brake block 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 (roller shafts, gear hubs, gearbox output shafts) every 200 working hours, and apply grease to pins, connectors, and valve stems 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 parts and explosion-proof devices, 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 inclinometer 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, inclinometer, 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: ZJ70 Disc Brake Oil Leakage

Fault Phenomenon: During the operation of the ZJ70 drilling rig, the C2 type disc brake leaked hydraulic oil, resulting in reduced braking force and unstable operation of the drilling rig hoisting system.

Fault Cause: The PSZ75-2-25.9 sealing ring was worn after 4500 working hours of use, and the sealing performance decreased, leading to oil leakage.

Maintenance Solution: Replace the sealing ring with our ZJ70 C2 type PSZ75-2-25.9 spare part, add hydraulic oil to the standard level, and test the braking performance. After replacement, there is no oil leakage, the braking force is restored, and the drilling rig hoisting system operates normally.

Case 2: MWD Inclinometer Measurement Failure

Fault Phenomenon: The MWD inclinometer’s 406092 sieve cavity was blocked, resulting in poor fluid circulation, unstable compass operation, and inaccurate downhole measurement data.

Fault Cause: The sieve cavity was blocked by downhole sediment and impurities after 3000 working hours of use, affecting the normal operation of the inclinometer compass.

Maintenance Solution: Replace the sieve cavity with our MWD 406092 spare part, clean the inclinometer fluid pipeline, and calibrate the compass. After replacement, the fluid circulation is smooth, the compass operates stably, and the measurement data is accurate.

Case 3: ZJ50 Roller Shaft Wear Failure

Fault Phenomenon: The ZJ50 drilling rig’s roller shaft had abnormal noise and uneven rotation, resulting in reduced drilling efficiency and increased vibration of the drilling rig.

Fault Cause: The roller shaft was severely worn (wear thickness exceeding 0.2mm) after 7000 working hours of use, leading to increased clearance between the shaft and bearing.

Maintenance Solution: Replace the roller shaft with our ZJ50 spare part, adjust the bearing clearance, and test the rotation performance. After replacement, the roller shaft operates smoothly without abnormal noise, and the drilling efficiency is restored.

FAQ (Frequently Asked Questions)

Conclusion & Procurement Guide

We are committed to providing high-quality, reliable, and cost-effective spare parts for oil drilling rigs, inclinometers, swivels, gearboxes, disc brakes, and supporting equipment, covering core models such as ZJ30, ZJ40, ZJ50, ZJ70, DQ70BS, DQ70BSD, and key parts such as MWD 406092 sieve cavity, 17-1/2″ MP2G steel tooth roller bit, ZJ70 C2 type disc brake sealing ring, and DQ70BSD explosion-proof cable assembly. 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, inclinometer components, swivel parts, or other related products (such as ZJ50 roller shaft, 3842043 filter element, 6V1169 engine repair kit, IA162 air control valve, 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.