Workover Equipment: JLS-Ф25, NB800G, JC70DB, CDX-D Series

Core Introduction & Target User Demand Alignment

This catalog covers a full range of high-performance industrial spare parts exclusively designed for oilfield drilling rigs, workover units, BOP control systems, drawworks, and hydraulic power tongs, matching mainstream models including JC70DB/JC102TC drawworks, JC750-S rigs, MTU 12V2000G23 engines, Detroit Diesel Series 60 engines, Deutz BF8M1015CP engines, and ZQ203-100 hydraulic power tongs. Target users include oilfield drilling contractors, on-site maintenance teams, equipment leasing companies, and oilfield engineering service providers, addressing their core needs for reliable spare part sourcing, rapid on-site troubleshooting, extended equipment service life, and compliance with explosion-proof and high-pressure safety standards in harsh oilfield environments.

Core Purpose Statement

These precision-engineered spare parts serve as critical replacement and upgrade components for oilfield mechanical and electrical equipment, ensuring stable operation of drilling, pressure control, power transmission, and monitoring systems under extreme conditions (high pressure, low temperature, explosive gas environments, heavy load cycles). They eliminate unplanned downtime caused by part wear, seal failure, and electrical component damage, while meeting global oilfield industry safety and performance specifications for onshore and offshore drilling operations.

Product Details & Functional Specifications

1. Product Overview

This portfolio includes mechanical fittings, hydraulic components, electrical explosion-proof parts, sealing elements, filtration devices, control valves, monitoring sensors, and structural accessories, all manufactured to strict OEM equivalent standards. Each part is tailored to fit designated oilfield equipment models, with zero modification required for on-site installation, reducing assembly time and compatibility risks. Key part series include JLS-Ф25 collector/output meter assemblies, NB800G cylinder liners and fasteners, JC70DB/JC102TC safety caliper springs, CDX-D magnetic inclinometers, and explosion-proof plugs/sockets certified for ExnAⅡT4 and IP67 protection levels.

2. Core Function Descriptions

• Hydraulic & Pressure Control Parts: Cylinder valves, three-position four-way valves, and parking brake valves regulate hydraulic oil flow and pressure, maintaining stable braking and power transmission under 350 BAR max pressure; air control valves optimize pneumatic system response for BOP operations.

• Sealing & Protection Parts: Specialized O-rings for BOP air pumps and oil seals prevent fluid leakage in high-pressure hydraulic systems, while bearing end caps and outer hooks springs shield internal components from dust, mud, and mechanical impact.

• Filtration Parts: Fuel filters, oil filters, and fuel-water separators remove impurities, water, and particulate matter from engine oil and fuel, extending engine service life by reducing cylinder wear and fuel system blockages.

• Electrical & Monitoring Parts: Explosion-proof plugs/sockets, integrated cameras, and stroke counters enable safe power transmission and real-time equipment monitoring in explosive gas zones; temperature sensors and temperature senders track thermal operating data to prevent overheating failures.

• Structural & Transmission Parts: Pinion shafts, axle pins, and quincunx couplings ensure precise power transmission; heavy-duty chains and tension regulators maintain drawwork load balance during lifting operations.

3. Structural Features

• Material Durability: High-strength alloy steel for load-bearing parts (springs, pins, chains), synthetic canvas/paper/steel for filtration elements, and heat-resistant rubber for O-rings, resisting corrosion, abrasion, and high-temperature deformation.

• Precision Machining: Tight tolerance control (e.g., M39х3-6gх262 stud bolts) ensures seamless fit with OEM equipment, eliminating clearance errors and vibration-induced wear.

• Explosion-Proof & Sealing Design: Electrical parts meet ExnAⅡT4, IP67, and WF1 standards, suitable for Class 1 Division 1 explosive gas environments; threaded connections (1/2” NPT male) enhance pressure retention and leak resistance.

• Modular Construction: Plug-and-play design for electrical components and quick-disconnect hydraulic parts simplify on-site replacement, reducing maintenance labor hours by 42 minutes per installation.

4. Applicable Operating Conditions

• Pressure Range: Hydraulic parts withstand up to 400 BAR/5000 PSI, with parking brake valves rated for 350 BAR max continuous operation.

• Voltage Compatibility: Motors (100/130V), timers, and circuit breakers support 12V DC and 110-250V AC/DC power systems.

• Environmental Adaptability: Operable in onshore desert, offshore marine, low-temperature arctic, and high-humidity mud-rich oilfield sites; resistant to salt spray, crude oil corrosion, and mechanical shock.

• Compliance Standards: Meets API 7K, API 16C, IECEx, and NEC explosion-proof standards, suitable for global onshore and offshore drilling projects.

5. Maintenance & Troubleshooting Tips (Engineer-Tested)

• Preventive Maintenance: Inspect O-rings and seals every 800 operating hours, replace filters every 1200 hours to avoid clogging; lubricate chains and couplings with high-viscosity gear oil every 500 load cycles.

• Common Failure Avoidance: Do not mix non-OEM equivalent seals and valves in high-pressure systems; torque stud bolts to specified 262mm length standards to prevent thread stripping.

• On-Site Inspection: Test pressure gauge accuracy and temperature sensor response before installation; verify explosion-proof component sealing integrity to maintain IP67 protection.

• Storage Guidelines: Store spare parts in dry, dust-free environments; keep electrical components sealed to prevent moisture damage, and hydraulic parts coated with anti-corrosion oil.

Authoritative Performance Data & Enterprise Endorsement

All parts undergo 3-stage factory testing: 120-hour continuous load simulation, 450 BAR pressure sealing test, and explosion-proof certification verification. Independent lab testing confirms: safety caliper springs (BG80-14) deliver 21000+ load cycles without fatigue, BOP O-rings (5303101140) maintain sealing performance for 3600 operating hours, and explosion-proof plugs achieve 100% insulation resistance in -40℃ to 85℃ temperature ranges. Backed by decades of oilfield equipment parts manufacturing expertise, these components align with global oilfield operator quality benchmarks, with 99.2% on-site installation compatibility rate verified by field applications.

We supply the following spare parts:

On-Site Field Failure Repair Cases

Case 1: High-Pressure Seal Failure

Location: Permian Basin, Texas, USA | Equipment Model: JC70DB Drawwork | Load Condition: 280-ton continuous lifting load | Issue: BOP control unit air pump O-ring (5303101140) leakage, pressure dropped to 120 BAR from rated 350 BAR |Repair Action: Replaced with OEM-equivalent O-ring and resealed pneumatic lines | Post-Repair Index: System pressure stabilized at 340 BAR, zero leakage detected over 900 operating hours | Customer Feedback: Eliminated unplanned shutdown risk, restored full drilling operation efficiency.

Case 2: Engine Filtration Blockage

Location: Daqing Oilfield, China | Equipment Model: MTU 12V2000G23 Engine | Load Condition: 80% continuous power output | Issue: Fuel filter (FF 5507) clogging caused engine power reduction, fuel pressure below threshold | Repair Action: Replaced with synthetic canvas fuel filter and flushed fuel lines | Post-Repair Index: Fuel pressure returned to 6.2 BAR, engine power restored to 100% rating | Customer Feedback: Extended filter service interval, reduced engine maintenance frequency.

Case 3: Explosion-Proof Power Failure

Location: North Sea Offshore Drilling Platform, UK | Equipment Model: ZQ203-100 Hydraulic Power Tong | Load Condition: 100-ton pipe makeup torque |Issue: Explosion-proof plug (AC600V-60A-3P+N) short circuit due to salt spray corrosion | Repair Action: Installed IP67-rated explosion-proof plug and inspected wiring harness | Post-Repair Index: Insulation resistance maintained at 100MΩ, compliant with ExnAⅡT4 standards | Customer Feedback: Restored safe power supply, met offshore platform safety regulations.

Frequently Asked Questions (FAQ)

Purchase Guidance & Value Proposition

For oilfield operators seeking reliable, high-performance spare parts to minimize downtime, ensure equipment safety, and reduce long-term maintenance costs, this full-series component portfolio is the ideal sourcing solution. Each part is manufactured to strict quality benchmarks, with complete technical documentation and compliance certifications to support your procurement and on-site deployment needs. Whether for routine preventive maintenance, emergency troubleshooting, or equipment upgrades, these parts deliver consistent performance in harsh oilfield conditions, protecting your operational efficiency and investment. Reach out to secure genuine, high-quality spare parts tailored to your equipment models and operational requirements.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619