Parts Supply: ZJ30C, ZJ50D, ZJ70D, DQ70BSD, MT125HU4DVE

Introduction

We focus on the production and supply of high-quality replacement parts and accessories, specifically matching core industrial and oilfield equipment models such as ZJ30C, ZJ50D, ZJ70D drilling rigs, DQ70BS/DQ70BSD/DQ70BSC well control equipment, BOMCO F1300/1600CP150 mud pumps, 2530 logging instruments, Centrifugal Refrigeration Compressor MT125HU4DVE, and TDS accumulator systems. Our product range covers drive rings (515862, 515860), bearings (500100201), PDC drill bits (3112mm STS915K), filter elements (466987-5, 23533816), O-rings (115*53 CS33001-0405, DQ70 2.4.51.030), and hundreds of other precision components. Every part is manufactured in strict compliance with API (American Petroleum Institute) standards, ISO quality management system requirements, and original equipment (OEM) specifications, ensuring perfect compatibility, reliable performance, and long service life.

Target User Segmentation & Core Purpose: Our products are tailored to the specific needs of oilfield drilling teams, industrial maintenance engineers, equipment operation managers, and logging/well control professionals. For oilfield users, we solve the pain points of long downtime due to mismatched parts, high maintenance costs, and unstable equipment operation during drilling and well control. For industrial users, we provide cost-effective replacement solutions for refrigeration compressors, cooling systems, and air compressors, ensuring continuous production. The core purpose of our products is to deliver 1:1 matched, durable, and easy-to-install parts that reduce maintenance time, lower operational costs, and maximize the service life of your key equipment—whether it’s a ZJ50D drilling rig’s turntable drive shaft, a DQ70BSD’s sealing ring, or a MT125HU4DVE compressor’s components.

Product Overview

Key Product Categories & Matched Equipment Models

Our product portfolio covers a full range of precision components for oilfield drilling, well control, logging, industrial refrigeration, and air compression equipment. Each part is strictly matched to specific equipment models to eliminate compatibility risks. Below are the main product categories and their applicable equipment:

• Drilling Rig Parts: Suitable for ZJ30C, ZJ50D, ZJ70D drilling rigs, including turntable drive shaft bolts (M16*1.5*100), main drum casting brake blocks (E720-03000073), pulleys (Φ900 101.01.03), handle reversing valves (2-HA-1R REXROTH), and safety gear cylinder assemblies (BK-7-7B).

• Well Control & Logging Equipment Parts: Matching DQ70BS, DQ70BSD, DQ70BSC well control equipment and 2530 logging instruments, including end straight connectors (5202000450), protection connectors (T75020519-1 197×407 NC50), hose assemblies (9705229004), and hot air temperature circulation boxes (HT203-Ⅱ).

• Mud Pump & Drill Bit Parts: Applicable to BOMCO F1300/1600CP150 mud pumps and oilfield drilling operations, including dedicated pistons, PDC drill bits (3112mm STS915K), LMD centralizer collars (981785 GE), and throatbushes (G8083U38).

• Refrigeration & Air Compressor Parts: For Centrifugal Refrigeration Compressor MT125HU4DVE and air compressors, including connecting rods (239409), elevated oil seals (5S2106), and flow restrictor valves (P/N 5126000990).

• Filters & Seals: Universal and model-specific filters (fuel filter BF7587, oil filter 29505563), filter elements (466987-5, 23533816, 23530646), O-rings (115*53 CS33001-0405, DQ70 2.4.51.030, LMD O-ring AS-123 Viton 381540 GE), drive rings (515862, 515860), and wear rings (W24-33-300).

• Fasteners & General Parts: Bolts (575517001T, P2200637AA), washers (P1000365AA), semicircle retaining rings (BK-8-6A), support rings (P1100657AA), shields (7E5287, 450106), belts (9L6639, Qiandele 8240 P-1604), and aviation sockets (Baoji Youtai 15YZ-3P+E-15A).

Function Description

Each product is independently designed to meet the specific functional requirements of its matched equipment, ensuring efficient, safe, and stable operation. The core functions of key product categories are as follows:

Drilling Rig & Well Control Parts

Turntable drive shaft bolts (M16*1.5*100) for ZJ50D drilling rigs fix the drive shaft firmly, ensuring stable power transmission during drilling. Handle reversing valves (2-HA-1R REXROTH) for ZJ70D rigs control the direction of hydraulic oil flow, enabling smooth switching of drilling operations. Protection connectors (T75020519-1) for DQ70BS well control equipment protect the connection of well control pipelines, preventing leakage and ensuring safe well control operations.

Filters & Seals

Fuel filters (BF7587) and oil filters (29505563) remove impurities from fuel and oil, protecting the engine and hydraulic system from wear. Filter elements (466987-5, 23533816) are designed for high filtration efficiency, ensuring clean fluid circulation. O-rings and sealing rings (DQ70BSD 9702032014) provide reliable sealing for pipelines and components, preventing oil, gas, or fluid leakage in high-pressure environments.

Drill Bits & Mud Pump Parts

PDC drill bits (3112mm STS915K) are designed for efficient rock drilling, with high wear resistance and long service life, suitable for various formation conditions. Dedicated pistons for BOMCO F1300/1600CP150 mud pumps ensure stable slurry delivery, maintaining the pressure and flow required for drilling operations. LMD centralizer collars (981785 GE) stabilize the drill string, reducing wear and improving drilling accuracy.

Refrigeration & Air Compressor Parts

Flow restrictor valves (5126000990) control the flow of refrigerant in Centrifugal Refrigeration Compressor MT125HU4DVE, ensuring stable cooling performance. Air compressor connecting rods (239409) transmit power to the piston, maintaining stable air supply for industrial equipment. Elevated oil seals (5S2106) prevent oil leakage, extending the service life of the air compressor.

Structural Features

Our products adopt advanced structural design and high-quality materials, combining compatibility, durability, and ease of installation—addressing the common pain points of difficult replacement, short service life, and poor stability of generic parts. Key structural features include:

• 1:1 OEM Compatibility: All parts are manufactured according to original equipment drawings, with precise dimensional tolerance control. For example, ZJ30C main drum casting brake blocks (E720-03000073) and DQ70 2.4.51.030 O-rings match the original equipment perfectly, allowing direct replacement without modifying the equipment structure.

• High-Durability Materials: Key parts use industry-grade materials—such as high-strength alloy steel for bolts and drive rings, Viton for O-rings (AS-123), and wear-resistant carbide for PDC drill bits (STS915K)—enhancing wear resistance, corrosion resistance, and pressure resistance, suitable for harsh industrial and oilfield environments.

• Easy Installation & Maintenance: The structural design fully considers on-site operation needs. For example, semicircle retaining rings (BK-8-6A) and support rings (P1100657AA) can be installed and removed quickly with common tools; filter elements (23533816, 23530646) adopt a detachable design, making replacement convenient and reducing maintenance time.

• Safety-Oriented Design: Safety-critical parts (such as safety gear cylinder assemblies BK-7-7B and handle reversing valves 2-HA-1R) adopt multiple safety protection structures, preventing failure during high-pressure or high-load operations, and ensuring the safety of operators and equipment.

Applicable Working Conditions

Our products are engineered to adapt to various harsh working environments, meeting the operational needs of oilfield, industrial, and logging scenarios. The main applicable working conditions are as follows:

Oilfield Drilling & Well Control Scenarios

Suitable for onshore and offshore drilling operations (desert, plateau, coastal), including ZJ30C/ZJ50D/ZJ70D drilling rig operations and DQ70BS/DQ70BSD well control operations. Products such as PDC drill bits (3112mm STS915K), turntable drive shaft bolts, and safety gear cylinder assemblies can withstand high temperature, high humidity, dust, vibration, and high pressure, ensuring stable operation during long-term continuous drilling.

Logging & Industrial Heating Scenarios

Applicable to 2530 logging instrument operations and industrial heating systems. Hot air temperature circulation boxes (HT203-Ⅱ) for logging instruments can maintain stable temperature in harsh field environments, ensuring accurate logging data. LMD centralizer collars (981785 GE) and throatbushes (G8083U38) adapt to downhole high-temperature and high-pressure conditions, ensuring smooth drilling and logging operations.

Refrigeration & Air Compression Scenarios

For Centrifugal Refrigeration Compressor MT125HU4DVE in factories, cold storage, and industrial facilities, our flow restrictor valves and connecting rods can adapt to low-temperature and high-pressure working conditions, ensuring stable refrigeration performance. Air compressor parts (connecting rods 239409, elevated oil seals 5S2106) adapt to continuous operation in industrial workshops, maintaining stable air supply.

General Industrial Scenarios

Suitable for various industrial equipment such as mud pumps (BOMCO F1300/1600CP150), cooling fans (CDG50 W2E200-HH38-01 230), and transmission systems. Belts (9L6639, P-1604), pulleys (Φ900), and universal transfer switches (LW5-16N/2 330109050500110000) ensure stable operation of equipment in normal industrial environments, reducing maintenance frequency.

Maintenance & Care Recommendations

Proper maintenance and care can extend the service life of parts, improve equipment operation efficiency, and reduce long-term maintenance costs. We provide practical recommendations based on the characteristics of different products, easy to follow for on-site maintenance teams:

Daily Inspection

Check the connection status of bolts (575517001T, P2200637AA), hoses (DQ70BSC 9705229004), and seals (DQ70BSD 9702032014) daily. Ensure there is no looseness, leakage, or deformation. For O-rings and elevated oil seals (5S2106), check for aging or cracks, and replace them in time to avoid fluid leakage.

Regular Cleaning & Replacement

Clean or replace filter elements (466987-5, 23533816, 23530646) every 20-30 days (or according to equipment operation hours) to ensure filtration efficiency. Clean PDC drill bits (3112mm STS915K) and LMD centralizer collars (981785 GE) after use to remove sludge and debris, avoiding wear caused by impurity accumulation.

Lubrication Maintenance

Apply appropriate lubricating oil to moving parts such as bearings (500100201), pulleys (Φ900), and air compressor connecting rods (239409) regularly. Choose lubricants that meet API standards and equipment manual requirements to reduce friction loss and extend part service life.

Storage & Handling

Unused parts should be stored in a dry, ventilated, and clean warehouse, away from moisture, dust, and corrosive substances. Precision parts such as aviation sockets (Baoji Youtai 15YZ-3P+E-15A) and filter elements should be stored in sealed packaging to avoid damage to internal components. When handling heavy parts (such as turntable drive shafts), use appropriate tools to prevent collision and deformation.

Replacement Standards

Replace parts in time if they show the following signs: wear exceeding the equipment manual limit (e.g., wear rings W24-33-300), deformation (e.g., frame plates CAM3032), leakage (e.g., sealing rings), or failure to meet operational requirements (e.g., flow restrictor valves 5126000990 with unstable flow control).

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 fault handling:

Case 1: ZJ30C Drilling Rig Brake Failure

Fault Phenomenon: During ZJ30C drilling rig operation, the main drum could not brake effectively, leading to unsafe operation and drilling suspension. Fault Analysis: Inspection found that the main drum casting brake block (E720-03000073) was severely worn, reducing braking friction. Solution: Replace the brake block with our ZJ30C-specific E720-03000073 part. After installation, the brake was sensitive and stable, and drilling operations resumed immediately. Key Point: Using model-matched brake blocks ensures braking performance and avoids safety accidents caused by generic parts.

Case 2: DQ70BSD Well Control Equipment Leakage

Fault Phenomenon: DQ70BSD well control equipment had oil leakage at the pipeline connection, affecting well control safety. Fault Analysis: The sealing ring (9702032014) was aging and deformed, losing sealing performance. Solution: Replace the sealing ring with our DQ70BSD-specific 9702032014 part. After replacement, there was no leakage, and the equipment operated normally. Key Point: Model-specific seals ensure perfect fit and reliable sealing in high-pressure well control environments.

Case 3: MT125HU4DVE Refrigeration Compressor Flow Instability

Fault Phenomenon: Centrifugal Refrigeration Compressor MT125HU4DVE had unstable cooling performance, with frequent temperature fluctuations. Fault Analysis: The flow restrictor valve (5126000990) was blocked and had internal component wear, leading to uneven refrigerant flow. Solution: Replace the flow restrictor valve with our 5126000990 part. After debugging, the compressor’s refrigerant flow was stable, and cooling performance returned to normal. Key Point: Using original-matched flow control parts ensures the stability of the refrigeration system.

FAQ (Frequently Asked Questions)

Procurement Reference & Technical Standards

Procurement Reference Standards

To ensure you purchase the most suitable parts, follow these procurement guidelines:

• Confirm Equipment & Part Information: Provide your equipment model (e.g., ZJ70D, DQ70BSC) and the original part number (e.g., 5202000450, 23533816) to avoid compatibility issues.

• Verify Product Specifications: Check the material, size, and performance parameters of the part to ensure it matches your equipment’s working conditions (e.g., high-pressure, low-temperature environments).

• Prioritize Quality & Compatibility: Choose parts that meet API, ISO, or OEM standards to ensure reliability and avoid frequent replacements and equipment damage.

Technical Reference Standards

Our products comply with international and industry standards to ensure performance and safety: API 7-1 for drill bits, API 16C for well control equipment parts, ISO 9001 for quality management, and OEM specifications for all replacement parts. 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 committed to providing high-quality, compatible, and cost-effective replacement parts for oilfield and industrial equipment. Whether you need ZJ series drilling rig parts, DQ70 series well control parts, MT125HU4DVE compressor parts, or BOMCO mud pump parts, we have you covered. Our products feature full model coverage, reliable quality, 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.

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Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.