CAT C18, ZJ50D28, ZJ70DB, Fann35A, ST615TU

Introduction: Reliable Parts for Oilfield & Engineering Equipment Stability

We focus on the production and supply of high-quality spare parts for oilfield drilling, workover, pumping, and engineering equipment, covering a full range of core components tailored to meet the rigorous demands of industrial operations. Our product lineup includes Generator C18 D9T (333-1184) CAT C18, winch brake operating mechanism for ZJ50D28/ZJ70DB/ZJ30DB/ZJ40LDB, Sand fishing drum assembly Z03030000006AA, TROUGHWAY TERMINAL PIPE CONNECTOR Z1/2 (830102-01-0500), 2538-1H Bolt casing jack, PDC drill bit 2159mm ST615TU, Steel tooth roller bit 2413mm HAT127, Six Speed Rotational Viscometer Fann35A 115V 60Hz, and hundreds of other precision parts.

These components are exclusively designed to fit leading equipment models, including CAT C18 generators, ZJ30DB/ZJ40LDB/ZJ50D28/ZJ70DB drilling rigs, 10/8G-AH mud pumps, C2051/S751 slurry pumps, JC-30DBX winches, and Fann35A testing equipment. Targeted at oilfield drilling contractors, workover service providers, equipment maintenance teams, and industrial spare parts distributors, our products directly address the critical pain points of industrial operations—unplanned downtime caused by low-quality parts, compatibility issues leading to equipment failure, and high maintenance costs from frequent part replacements.

We prioritize value delivery by adhering to international industry standards (ISO 9001:2015, API Spec 7K, GB/T 3077-2015) and implementing a 3-stage quality inspection process, ensuring a product qualification rate of 99.9%. Our parts are engineered to enhance equipment reliability by 40%, reduce maintenance frequency by 35%, and extend the service life of key equipment by 25% compared to generic alternatives, directly boosting operational efficiency and reducing total ownership costs.

Core Purpose & Product Overview

Core Purpose

Our oilfield and engineering equipment parts are designed to ensure the safe, stable, and efficient operation of critical industrial machinery. From power generation and drilling to material handling and fluid transmission, each component plays a vital role in maintaining operational continuity. Whether for routine maintenance, emergency replacement, or equipment upgrade, our parts provide a cost-effective, compatible, and durable solution to minimize downtime, reduce maintenance workload, and ensure compliance with industrial safety and performance standards.

Product Introduction

Our product range covers 7 major categories, each optimized for specific functions and fully compatible with leading equipment models:

• Power & Control Parts: Generator C18 D9T (333-1184) CAT C18, SCR DQ70BS A5E00338484 3106000090, Clean water motor position feedback device C050010915, and Six Speed Rotational Viscometer Fann35A 115V 60Hz—ensuring stable power supply, accurate control, and reliable performance monitoring, with a voltage stability of ±1% for generator parts.

• Winch & Brake Components: Winch brake operating mechanism for ZJ50D28/ZJ70DB/ZJ30DB/ZJ40LDB, Winch drive shaft ZJ-70DB, fast rope roller 40106.02.170.00, Winch JC-30DBX handle reversing valve 2-HA-1, and Hydraulic Disc Brake Ⅰ Pin Shaft PSZ65A-2-01—delivering smooth braking and transmission, with a braking response time of ≤0.5 seconds and a load capacity of up to 500 tons.

• Drilling & Well Tools: PDC drill bit 2159mm ST615TU, Steel tooth roller bit 2413mm HAT127, Sand fishing drum assembly Z03030000006AA, Casing line stabilizer PSQ 011.00, and 2538-1H Bolt casing jack—optimized for harsh drilling conditions, with a drill bit service life of 800+ drilling hours and a casing jack load capacity of 150 tons.

• Pump & Hydraulic Parts: 10/8G-AH mud pump WRT1 impeller FAM8145WRT1A05A, C2051 Slurry Pump Impeller, HYDRAULIC MOTOR 20 HP E01-1013-01, DW40C0701wg32100003 Oil motor, and High pressure control valve crankshaft plunger pump QB 1.80 35CrMo—providing stable fluid transmission, with a working pressure range of 0.6-40MPa and a flow rate accuracy of ±2%.

• Valves & Fittings: ZJ-30-Four valve NYLL-30-02, VA20-AA440-40A3-Y04044 Quad valve, TROUGHWAY TERMINAL PIPE CONNECTOR Z1/2 (830102-01-0500), quick coupler ZJ-40LDB NV14, 229859/IA-112 quick release valve, and quick exhaust valve 512704070600150004—ensuring tight sealing and smooth fluid control, with a leakage rate of ≤0.01ml/min.

• Seals & Gaskets: O-ring DQ70BSC 5303100500 195×7 (high temperature resistant), otype sealing ring 5300100235, disc brake seal universal PSZ-OK.0150, spring seal ZJ45 200×240×18, and SEALING, INNER OIL SLEEVE (Part Number: 9702020312)—resisting high temperature (-40℃ to 150℃) and high pressure, with a service life of 5,000+ working hours.

• Mechanical Components: Spherical roller bearing 430103012231100026, sprocket ZJ50 106.11.30.11 (2Z=75), double sprocket P3500056AA, gear P3100007AA, Clutch shoe AVB700*250 assembly, Safety pin (P/N 9701000002), and lock pin DQ70 1.05.01.18.006—ensuring mechanical stability and wear resistance, with a hardness of HRC 58-62 for key components.

Function Description

Key Functions of Core Products

• CAT C18 Generator (333-1184): Provides stable power supply for oilfield drilling rigs and engineering equipment, with a rated power of 500kW and a fuel efficiency of 210g/kWh, ensuring continuous operation in remote industrial environments without grid support.

• ZJ70DB Winch Brake Operating Mechanism: Controls the winch’s lifting and lowering operations, with a hydraulic disc brake system that delivers reliable braking force, preventing load slippage and ensuring operator safety. The matching DG18V-32AB60 air control reversing valve enables quick and smooth brake adjustment.

• PDC Drill Bit 2159mm ST615TU: Drills through various formations (sandstone, limestone, shale) with high efficiency, featuring 12 polycrystalline diamond cutters that reduce drilling resistance by 30% and improve drilling speed by 25% compared to traditional roller bits.

• Fann35A Rotational Viscometer: Measures the viscosity of drilling mud and cement slurry, with a measurement range of 1-100,000 cP and an accuracy of ±1%, helping engineers optimize drilling fluid performance and ensure smooth drilling operations.

• High Temperature O-ring DQ70BSC 5303100500 195×7: Seals hydraulic and fluid systems in high-temperature environments (up to 150℃), preventing oil or fluid leakage and protecting precision components from contamination and damage.

Structural Features

General Structural Advantages

All our parts are engineered to withstand the harsh conditions of oilfield and industrial operations, with the following structural features:

• High-Strength Material Selection: Key components (Steel tooth roller bit HAT127, High pressure control valve QB 1.80 35CrMo) are made of 35CrMo alloy steel and wear-resistant materials, with a tensile strength of ≥980MPa, ensuring resistance to impact, wear, and corrosion.

• Precision Machining: Parts such as Winch drive shaft ZJ-70DB and sprocket ZJ50 106.11.30.11 are processed by CNC machine tools with a machining accuracy of ±0.005mm, ensuring perfect compatibility with original equipment and no need for secondary modification.

• High-Temperature & High-Pressure Resistance: Seals (O-ring 5303100500) and hydraulic parts (HYDRAULIC MOTOR E01-1013-01) are designed to withstand extreme temperatures (-40℃ to 150℃) and pressures (up to 40MPa), maintaining performance in harsh working conditions.

• Modular & Easy-to-Install Design: Winch brake operating mechanisms and valve components adopt a modular structure, allowing for quick installation and disassembly, reducing maintenance time by 40% and minimizing downtime.

• Anti-Corrosion Coating: Exposed components (Sand fishing drum assembly Z03030000006AA, quick coupler NV14) are treated with galvanized or anti-corrosion coating, extending service life by 30% in high-humidity and high-salt offshore environments.

Applicable Working Conditions

Our parts are widely applicable to various harsh industrial environments, including:

• Onshore & Offshore Drilling Rigs: Compatible with ZJ30DB/ZJ40LDB/ZJ50D28/ZJ70DB drilling rigs, withstanding high temperature (up to 85℃), high humidity (relative humidity ≥95%), and strong wind (wind speed up to 30m/s) conditions.

• Oilfield Workover Operations: Suitable for JC-30DBX winches, 2538-1H Bolt casing jacks, and Sand fishing drum assemblies, adapting to remote and harsh well repair sites with uneven terrain.

• Mud & Slurry Pump Systems: Matching 10/8G-AH mud pumps and C2051 slurry pumps, working stably in high-pressure (up to 40MPa) and high-abrasion environments, ensuring continuous fluid delivery.

• Power Generation & Control Systems: Applicable to CAT C18 generators and SCR DQ70BS control modules, operating reliably in grid-independent environments (e.g., remote oilfields) with fluctuating load demands.

• Extreme Environment Operations: Parts such as high-temperature O-rings and anti-corrosion sprockets can work normally in low-temperature (-40℃) and offshore high-salt environments, with strong environmental adaptability.

Maintenance & Care Recommendations

Proper maintenance of industrial equipment parts is essential to extending their service life and ensuring equipment stability. We recommend the following maintenance measures:

• Regular Inspection: Check winch brake operating mechanisms and disc brake seals every 600 working hours; replace worn seals if leakage is detected. Inspect drill bits (ST615TU, HAT127) after each drilling shift to remove debris and check for cutter wear.

• Lubrication Maintenance: Apply lithium-based grease (NLGI Grade 2) to Spherical roller bearing 430103012231100026 and winch drive shafts every 1,200 working hours, ensuring sufficient lubrication and reducing friction wear.

• Seal Replacement: Replace high-temperature O-rings (5303100500) and otype sealing rings (5300100235) every 5,000 working hours or if signs of aging (cracking, hardening) are found, to prevent fluid leakage.

• Storage Requirements: Store spare parts in a dry, ventilated warehouse with a temperature of 0-25℃ and relative humidity ≤60%. Avoid direct sunlight, moisture, and contact with corrosive substances (crude oil, chemicals).

• Installation Notes: When installing parts such as Winch Hydraulic Disc Brake Pin Shaft PSZ65A-2-01 and quick coupler NV14, follow the original equipment manual for torque requirements (35-45 N·m) to avoid over-tightening or under-tightening.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, demonstrating how our parts solve critical equipment issues and minimize downtime:

Case 1: Winch Brake Failure on ZJ70DB Drilling Rig

Fault Description: A ZJ70DB drilling rig’s winch failed to brake properly during lifting operations, leading to load slippage and potential safety risks. On-site inspection found that the winch brake operating mechanism’s air control reversing valve (DG18V-32AB60) was worn, causing delayed brake response.

Repair Solution: Replace the faulty valve with our DG18V-32AB60 air control reversing valve, which is fully compatible with ZJ70DB winch brake systems and undergoes strict functional testing before delivery.

Result: The winch brake returned to normal operation within 1.5 hours of replacement, with a braking response time of 0.3 seconds. The valve has been in stable operation for 9,000 working hours without any failures, ensuring safe lifting operations.

Case 2: Mud Pump Impeller Wear Leading to Reduced Efficiency

Fault Description: A 10/8G-AH mud pump on a ZJ50D28 drilling rig experienced reduced flow rate and increased noise during operation. Inspection showed that the original WRT1 impeller was severely worn (wear depth ≥0.8mm), affecting fluid delivery efficiency.

Repair Solution: Replace the worn impeller with our FAM8145WRT1A05A impeller, which is made of high-wear-resistant alloy material and optimized for mud pump operations.

Result: The mud pump’s flow rate recovered to the rated value (80m³/h), and noise was reduced by 15%. The impeller has a service life of 7,500 working hours, doubling the service life of the original part and reducing maintenance costs.

Case 3: Generator Power Fluctuation on CAT C18

Fault Description: A CAT C18 generator (333-1184) on an offshore oilfield platform experienced frequent power fluctuations, causing instability in drilling rig control systems. Testing confirmed that the SCR module (A5E00338484 3106000090) was faulty, leading to inconsistent voltage output.

Repair Solution: Replace the faulty SCR module with our DQ70BS SCR A5E00338484 3106000090, which is fully compatible with CAT C18 generators and meets ISO 60664-1 insulation standards.

Result: The generator’s voltage stability improved to ±0.8%, eliminating power fluctuations and ensuring stable operation of the drilling rig’s control system. The module has a mean time between failures (MTBF) of 25,000+ working hours.

FAQ (Frequently Asked Questions)

Procurement Reference & Technical Standards

Procurement Reference Criteria

When purchasing industrial equipment parts, we recommend focusing on the following key points to ensure you select high-quality, compatible products:

• Model Compatibility: Confirm that the part model (e.g., CAT C18 333-1184, ZJ70DB DG18V-32AB60) matches your equipment’s original part number and technical parameters to avoid compatibility issues.

• Quality & Certification: Prioritize parts that meet international standards (ISO 9001:2015, API Spec 7K) and have passed strict quality inspections, with a qualification rate of ≥99.8%.

• Material & Durability: Choose parts made of high-strength, wear-resistant, and corrosion-resistant materials (e.g., 35CrMo alloy steel, high-temperature rubber) to ensure long service life in harsh environments.

• After-Sales Support: Select suppliers that provide comprehensive after-sales service, including technical support, fault diagnosis, and warranty coverage, to ensure timely assistance when needed.

Technical Reference Standards

Our products comply with the following international and national technical standards, ensuring reliable performance and safety:

• Drill Bits: API Spec 7K (Drilling and Well Servicing Equipment)

• Hydraulic Components: ISO 4401:2010 (Hydraulic Fluid Power - Cylinders - Mounting Dimensions)

• Bearings: GB/T 3077-2015 (Alloy Structural Steels) and ISO 281:2019 (Rolling Bearings - Dynamic Load Ratings and Rating Life)

• Generators: ISO 8528 (Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets)

• General Quality: ISO 9001:2015 (Quality Management Systems - Requirements)

Call to Action: Procure Your Reliable Industrial Equipment Parts Today

Whether you need critical power parts (CAT C18 333-1184 generator components), drilling tools (ST615TU PDC drill bit, HAT127 steel tooth roller bit), winch and brake components (ZJ70DB winch brake operating mechanism), or hydraulic and sealing parts (high-temperature O-ring 5303100500), we have the right solution for you. Our parts are precision-manufactured, 100% compatible with original equipment, and backed by strict quality control and professional technical support. We are committed to helping you reduce maintenance costs, minimize unplanned downtime, and improve operational efficiency. Contact us now to inquire about product availability, pricing, and technical details, and let us be your trusted partner for industrial equipment parts supply.

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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.