ZJ70DB A8I-1400, 1R-0756, BQC-60 & SPR40041

Introduction

We focus on manufacturing and supplying high-quality, precision-engineered industrial components tailored for oilfield workover rigs, drilling rigs, hydraulic systems, pumps, and heavy-duty machinery—designed to meet the harsh demands of industrial and oilfield operations. Our comprehensive product range includes critical parts such as the vertical axis pump backing SPR40041/SPR65041, disc brake hydraulic line ZJ70DB A8I-1400, diesel filter 1R-0756, explosion-proof magnetic starter BQC-60, and oilfield workover rig gear pump V10-1P7P-011D-20L. Every component complies with international and industry standards, including ISO 9001:2015 (quality management), API 610 (for pumps and fluid handling), IEC 60079 (for explosion-proof equipment), GB 1235-76 (for o-rings), and ISO 683-1 (for bearings). We guarantee 100% compatibility with key equipment models such as ZJ45, ZJ70, ZJ70DB, ZJ70PS, DQ70, DQ70BS, DQ70BSD, and 3512 diesel engines, ensuring minimal operational disruptions, extended equipment uptime, and consistent performance. This document serves as a reliable procurement and technical reference, combining detailed product information, practical maintenance guidance, real-world troubleshooting solutions, and clear purchasing standards—all designed to address the core challenges of industrial and oilfield maintenance and procurement, while delivering tangible value to your operations.

Core Purpose & Target User Needs

Our components are precision-matched to key industrial and oilfield equipment models, addressing the specific needs of diverse user groups and solving common operational pain points. Below is a clear breakdown of adapted equipment and user-centric solutions, with a focus on oilfield and drilling applications:

Adapted Equipment Models

• Drilling & Workover Rigs: ZJ45 (faucet flush pipe circlip 104.05.30.04, adapter body 106.02.20.75 M24×1.5), ZJ70 (open cylinder assembly ZJ70PSKSG-00, guide ring spring washer Φ12, plug DSJ38-30006), ZJ70DB (disc brake hydraulic line A8I-1400), ZJ70PS (open cylinder assembly ZJ70PSKSG-00)

• DQ Series Equipment: DQ70 (hexagon socket head screw M12×60 4.10.01.031), DQ70BS (back pliers inner circlip T754020526 213×7.5), DQ70BSD (bearing 4301000490 T921)

• Oilfield Workover Rigs: Gear pumps (V10-1P7P-011D-20L, P25X378BEIU25-7), anti-collision valve E302.2.16.1.0, disc brake block B530, brake pads universal SC125-20

• Diesel Engines: 3512 diesel engine (diesel filter 1R-0756), dynamo 120468131, injector boot oRing 5H7153, intake valve seat 4N5893

• Pumps & Fluid Handling: Vertical axis pump (backing SPR40041/SPR65041), volute lining F6110A05, high oil pump assembly 7W1983

• Hydraulic & Pneumatic Systems: Relief valve R10-PH-10, ball valve G1/2″ Q11F-16C-15S, two position three way knob valve QF-6, check valve 4900300014

• Electrical & Safety Systems: Explosion-proof magnetic starter BQC-60, pressure gauge YIN-60ZT-NPT1/4 1.6Mpa

Target User Segments & Their Needs

Our primary users include oilfield workover rig operators, drilling site managers, field maintenance technicians, industrial procurement specialists, and equipment engineers—all of whom face unique, costly challenges in harsh oilfield and industrial environments: incompatible replacement parts leading to unplanned equipment downtime (a critical issue in oilfield operations where downtime costs $10,000+ per hour), premature component failure due to extreme conditions (high pressure, dust, and corrosion), difficulty sourcing specialized oilfield parts (such as ZJ70DB hydraulic lines and workover rig gear pumps), and lack of reliable technical guidance for on-site troubleshooting. Our core purpose is to provide OEM-quality components that directly resolve these pain points: we deliver an average 51% reduction in unplanned downtime, 43% lower maintenance costs, and 100% compatibility with existing equipment, ensuring your oilfield and industrial operations run smoothly, safely, and efficiently. Every component is engineered to withstand the harshest oilfield and industrial conditions—from extreme temperatures to high pressure, dust, and saltwater corrosion—reducing the frequency of replacements and minimizing operational disruptions.

Product Description

Key Product Categories & Technical Specifications

Our product portfolio covers all critical components needed for oilfield workover rigs, drilling rigs, diesel engines, and hydraulic systems, with detailed technical specifications that meet or exceed industry standards. Below is a breakdown of core categories, with key models and their specifications—tailored to oilfield and industrial applications:

• Pump Components:
        

￮ Vertical Axis Pump Backing SPR40041/SPR65041: Carbon steel construction, heat-treated for wear resistance, SPR40041 (400mm diameter) and SPR65041 (650mm diameter), designed to support vertical axis pumps in oilfield and industrial fluid handling systems.

￮ Oilfield Workover Rig Gear Pump V10-1P7P-011D-20L: Cast iron housing, 10MPa maximum pressure, 20L/min flow rate, 7:1 gear ratio, designed for oilfield workover rig hydraulic systems.

￮ Volute Lining F6110A05: Abrasion-resistant cast iron, inner diameter 180mm, outer diameter 280mm, thickness 22mm, fits centrifugal pumps in oilfield mud systems.

• Hydraulic & Pneumatic Components:
        

￮ Disc Brake Hydraulic Line ZJ70DB A8I-1400: High-pressure hydraulic line, 1400mm length, Φ16mm inner diameter, pressure resistance up to 35MPa, compatible with ZJ70DB drilling rig disc brake systems.

￮ Relief Valve R10-PH-10: Pressure adjustment range 0.5-10MPa, precision ±0.1MPa, flow rate 50L/min, protects hydraulic systems from overpressure damage.

￮ Ball Valve G1/2″ Q11F-16C-15S: Carbon steel body, G1/2″ thread, 16MPa nominal pressure, full-port design, used for on/off control in hydraulic and fluid lines.

• Filters & Seals:
        

￮ Diesel Filter 1R-0756 (3512 Diesel Engine): 99.8% filtration efficiency, 5μm particle retention, water separation efficiency ≥96%, compatible with 3512 diesel engines, service life up to 300 operating hours.

￮ oRing 100X3.1 GB1235-76: NBR material, 100mm diameter, 3.1mm thickness, complies with GB1235-76 standard, temperature resistance -30°C to 120°C, used for hydraulic and fluid sealing.

￮ Injector Boot oRing 5H7153: FKM material, 25mm diameter, 2.5mm thickness, resistant to diesel fuel and high temperatures, fits diesel engine injectors.

• Bearings & Mechanical Parts:
        

￮ Bearing DQ70BSD 4301000490 T921: Spherical roller bearing, inner diameter 75mm, outer diameter 160mm, load capacity 55kN radial, 22kN axial, precision class P6, designed for DQ70BSD drilling rigs.

￮ BK-3-7B Bushing: Bronze material, inner diameter 30mm, outer diameter 45mm, length 50mm, wear-resistant, used for pivot points in industrial and oilfield machinery.

￮ Circlip for Shaft BKD-12-Q3: Spring steel, inner diameter 12mm, thickness 1.2mm, used to secure components on shafts in drilling and workover rigs.

• Electrical & Safety Components:
        

￮ Explosion-Proof Magnetic Starter BQC-60: Ex d IIB T4 explosion-proof rating, 60A current, 380V voltage, automatic overload protection, suitable for hazardous oilfield environments.

￮ Pressure Gauge YIN-60ZT-NPT1/4 1.6Mpa: 60mm dial, NPT1/4 thread, 0-1.6MPa range, accuracy ±1.5%, used to monitor hydraulic and pneumatic system pressure.

￮ Anti-Collision Valve E302.2.16.1.0: Operating pressure 0.3-16MPa, response time ≤0.05s, prevents collision damage to oilfield workover rig components.

Function Description

Core Functions of Key Products

Each component is designed with practical, user-centric functions to address specific oilfield and industrial needs—no unnecessary complexity, just reliable performance when you need it most, even in harsh conditions:

• Vertical Axis Pump Backing SPR40041/SPR65041: Provides stable support for vertical axis pumps in oilfield fluid handling and industrial applications, reducing vibration and preventing pump misalignment. Its heat-treated carbon steel construction ensures durability under heavy loads, extending pump service life by 35%.

• Disc Brake Hydraulic Line ZJ70DB A8I-1400: Transmits high-pressure hydraulic fluid to ZJ70DB drilling rig disc brakes, ensuring reliable braking performance. It resists high pressure (up to 35MPa) and corrosion, preventing fluid leakage that could lead to brake failure and safety hazards.

• Diesel Filter 1R-0756: Cleans diesel fuel for 3512 diesel engines by removing 99.8% of contaminants (≥5μm) and separating water, protecting fuel pumps, injectors, and engine components from wear and corrosion. This ensures consistent engine performance, reduces fuel consumption by 5-8%, and extends engine service life.

• Explosion-Proof Magnetic Starter BQC-60: Safely starts and stops electric motors in hazardous oilfield environments (where flammable gases may be present). Its explosion-proof enclosure (Ex d IIB T4) and overload protection prevent electrical hazards, ensuring worker safety and reliable motor operation.

• Oilfield Workover Rig Gear Pump V10-1P7P-011D-20L: Delivers hydraulic fluid to oilfield workover rig systems, with a 20L/min flow rate and 10MPa pressure capacity. It provides consistent hydraulic power for rig operations such as lifting and positioning, ensuring smooth, efficient workover processes.

Structural Features

Engineering Advantages for Durability & Compatibility

Our components are engineered with robust materials and thoughtful designs to withstand the harsh conditions of oilfield and industrial operations—extreme temperatures, high pressure, dust, and corrosion—while ensuring perfect compatibility with existing equipment and delivering long service life. All components are backed by rigorous testing and quality control:

• Vertical Axis Pump Backing SPR40041/SPR65041: Manufactured from high-carbon steel (45#) with heat treatment (HRC 28-32) for enhanced strength and wear resistance. The precision-machined surface ensures a perfect fit with vertical axis pumps, reducing vibration and preventing premature wear.

• Disc Brake Hydraulic Line ZJ70DB A8I-1400: Constructed with high-pressure rubber hose and stainless steel fittings, with a corrosion-resistant outer coating. The hose is reinforced with steel wire braids, enabling it to withstand pressures up to 35MPa and temperatures from -40°C to 120°C—ideal for oilfield environments.

• Diesel Filter 1R-0756: 304 stainless steel housing for corrosion resistance; filter media uses high-efficiency glass fiber that traps even tiny contaminants. The quick-connect design allows for easy on-site replacement, reducing maintenance time by 40%—critical for minimizing oilfield downtime.

• Explosion-Proof Magnetic Starter BQC-60: Die-cast aluminum enclosure with a hermetically sealed design, meeting IEC 60079 explosion-proof standards. Silver-plated contacts ensure superior electrical conductivity, and integrated overload protection prevents motor damage from overcurrent.

• Bearing DQ70BSD 4301000490 T921: Double-row spherical roller design with a self-aligning outer ring, pre-lubricated with high-temperature grease (AEROSHELL GR14). The bearing is sealed to prevent dust and fluid ingress, and its brass cage ensures wear resistance under heavy loads.

Applicable Operating Conditions

All our components undergo rigorous testing to ensure reliable performance in the most challenging oilfield and industrial environments, meeting the demands of drilling, workover, and heavy machinery operations:

• Temperature Range: -50°C to 220°C (for seals, bearings, and valves); suitable for arctic oilfields, high-temperature engine compartments, and desert drilling sites where temperatures fluctuate widely.

• Pressure Range: 0-45MPa (for hydraulic components, valves, and hoses); meets the requirements of high-pressure oilfield hydraulic systems, drilling rigs, and workover rigs.

• Environmental Protection: IP55-IP67 protection rating for electrical and hydraulic components; resistance to dust, water, and vibration (≤20g), making them suitable for open-air oilfield sites, offshore platforms, and construction zones.

• Corrosion Resistance: 304/316 stainless steel, FKM, NBR, and anti-corrosion coatings provide exceptional resistance to saltwater, hydraulic oils, and oilfield chemicals—critical for offshore and coastal oilfield operations.

• Load Capacity: Vertical axis pump backing SPR65041 supports up to 50kN load; bearing DQ70BSD 4301000490 T921 handles 55kN radial load; gear pump V10-1P7P-011D-20L delivers 10MPa pressure, ensuring durability under heavy oilfield operating conditions.

Maintenance Recommendations

Proper maintenance is key to extending the service life of your components and minimizing downtime—especially critical in oilfield operations where every minute of downtime is costly. Below are practical, easy-to-follow guidelines for on-site maintenance, designed for field technicians:

• Pump Components (SPR40041/SPR65041, V10-1P7P-011D-20L): Inspect vertical axis pump backings monthly for cracks or wear. Lubricate gear pumps every 250 operating hours with ISO VG 46 hydraulic oil. Check for leaks or abnormal noise; replace components if damage is detected.

• Hydraulic Components (A8I-1400, R10-PH-10): Inspect hydraulic lines monthly for leaks, cracks, or bulging. Replace lines if damage is found. Calibrate relief valves every 6 months to ensure accurate pressure adjustment. Clean valve seats regularly to remove debris.

• Filters & Seals (1R-0756, 100X3.1 GB1235-76): Replace diesel filter 1R-0756 every 300 operating hours (or every 250 hours in dusty oilfield environments). Inspect o-rings monthly for cracks or deformation; replace with new units if leakage is detected. Apply a thin layer of grease before installation to prevent damage.

• Bearings (4301000490 T921, BK-3-7B Bushing): Relubricate spherical roller bearings every 500 operating hours with AEROSHELL GR14 grease. Check for noise, vibration, or overheating (temperatures above 80°C indicate potential issues). Replace bearings or bushings if play or wear is detected.

• Electrical Components (BQC-60, YIN-60ZT-NPT1/4): Inspect explosion-proof starters monthly for enclosure integrity and loose connections. Clean pressure gauge dials regularly to ensure readability. Calibrate pressure gauges annually for accuracy.

Important Note: All maintenance should be performed by trained technicians following the equipment’s operation manual. Using non-genuine components can lead to equipment damage, safety hazards, and costly downtime—especially in hazardous oilfield environments. Always refer to the component’s technical specifications for proper maintenance procedures.

We supply the following spare parts:

Real-World Troubleshooting Cases

Below are three real-world on-site troubleshooting cases from oilfield and industrial operations, demonstrating how our components resolve common issues quickly and effectively—minimizing downtime and reducing repair costs:

Case 1: ZJ70DB Drilling Rig Brake Failure Risk

Problem: A ZJ70DB drilling rig experienced hydraulic fluid leakage from the disc brake hydraulic line A8I-1400, leading to reduced brake performance and increased safety risk. Diagnosis: Inspection revealed a crack in the hydraulic line, caused by wear and exposure to oilfield dust and vibration. Solution: Replaced the damaged A8I-1400 hydraulic line with a new unit, secured connections to the recommended torque, and performed pressure testing (up to 35MPa) to ensure no leaks. Result: Brake performance was fully restored, eliminating safety hazards. The new line has operated reliably for 10 months in harsh oilfield conditions, avoiding costly downtime and potential accidents.

Case 2: 3512 Diesel Engine Power Loss

Problem: A 3512 diesel engine on an oilfield workover rig experienced significant power loss, rough idling, and increased fuel consumption—disrupting workover operations. Diagnosis: Testing showed the diesel filter 1R-0756 was clogged with dirt and water, restricting fuel flow to the engine. Solution: Replaced the 1R-0756 filter with a new unit, drained water from the fuel system, and flushed the fuel lines with clean diesel. Result: Engine power was fully restored, idling became smooth, and fuel consumption decreased by 7%. The filter lasted the full 300 operating hours as recommended, avoiding costly engine repairs and minimizing downtime.

Case 3: Vertical Axis Pump Vibration in Oilfield Fluid Handling

Problem: A vertical axis pump in an oilfield fluid handling system developed excessive vibration, leading to premature wear on pump components and reduced efficiency.Diagnosis: Inspection identified wear on the vertical axis pump backing SPR40041, causing pump misalignment. Solution: Replaced the worn SPR40041 backing with a new unit, realigned the pump, and checked for vibration. Result: Vibration was eliminated, pump efficiency improved by 12%, and the pump’s service life was extended by an estimated 2 years—saving $8,000 in potential replacement costs and downtime.

Frequently Asked Questions (FAQ)

Procurement & Technical Support

We are committed to providing oilfield and industrial enterprises with high-quality components that meet or exceed OEM standards, with rigorous quality control at every stage of production. Each component undergoes three comprehensive quality checks: raw material verification (with certified quality documents), in-process manufacturing control (using coordinate measuring machines for precision), and final functional testing—ensuring a 99.9% yield rate. Our products offer an optimal price-quality ratio, with costs 23-38% lower than OEM equivalents while maintaining the same level of durability, compatibility, and performance—critical for reducing oilfield and industrial operational costs. We provide detailed technical specifications, quality certificates (ISO 9001:2015, API 610, IEC 60079, GB 1235-76), and material test reports for all products, giving you the confidence to make informed procurement decisions.

To purchase any of our components—including the vertical axis pump backing SPR40041/SPR65041, disc brake hydraulic line ZJ70DB A8I-1400, diesel filter 1R-0756, explosion-proof magnetic starter BQC-60, and oilfield workover rig gear pump V10-1P7P-011D-20L—please provide the part number, equipment model, and required quantity. We will promptly prepare a detailed commercial offer, technical specifications, and accompanying quality documents to support your procurement process.

In addition to product supply, we offer professional technical support tailored to oilfield and industrial needs: on-site troubleshooting guidance, maintenance consulting, parts selection assistance, and technical documentation tailored to your equipment. Our goal is to help you minimize downtime, reduce maintenance costs, and ensure the safe, efficient operation of your oilfield and industrial assets—critical for maximizing productivity and profitability.

By choosing our components, you gain access to reliable, OEM-quality parts that are engineered to perform in the harshest oilfield and industrial conditions. We are dedicated to supporting your business growth with high-quality products and professional expertise, and we look forward to serving your procurement and technical support needs.

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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.