Stud Bolt X20-01-005, PDC Drill Bit 8-1/2″ HJT537G, Hydraulic Line DQ70BS 50H0464 M30280

Introduction: Reliable Components for Drilling, Boiler & Industrial Equipment

We focus on the production and supply of precision-engineered parts, covering a comprehensive range of components tailored for oil drilling rigs, industrial boilers, winches, hydraulic systems, and power generation equipment. Our core product lineup includes Stud Bolt X20-01-005, Pressure Gauge FKQ640 40MPa, Hydraulic Line DQ70BS 50H0464 M30280, Inserted Carbide Roller Bit 8-1/2″ HJT537G, and many more (full model list provided in the original content). Every part is manufactured to meet the rigorous operational demands of heavy-duty equipment, with strict quality control from raw material selection to finished product testing—ensuring seamless compatibility, long service life, and consistent performance in harsh working environments.

This document is designed as a practical, user-centric reference for procurement professionals, maintenance technicians, equipment operators, and project managers who need trustworthy replacement parts and technical support. Whether you’re replacing a worn Stud Bolt X20-01-005, a faulty Pressure Gauge FKQ640 40MPa, or a damaged PDC Drill Bit 8-1/2″ HJT537G, we deliver exact-matching parts that minimize unplanned downtime, reduce maintenance costs, and keep your equipment running at peak efficiency.

Core Purpose & Target User Needs

Core Purpose

Our engineering parts are engineered to solve the most common pain points of industrial and drilling equipment operation: eliminating unplanned downtime caused by part failure, reducing maintenance costs through durable design, and ensuring equipment safety and reliability. Each component is built to match original equipment manufacturer (OEM) specifications, ensuring perfect compatibility with ZJ30, ZJ40, ZJ50, ZJ50LDB, ZJ70, ZJ70D drilling rigs, Boiler WNS1.0-1.25-Y, and other major industrial equipment models. From routine maintenance to emergency repairs, our parts provide a cost-effective, long-lasting solution to keep your machinery operational and projects on schedule.

Target User Segments & Their Needs

• Procurement Professionals: Need high-quality parts at competitive prices, with clear compatibility information and a reliable supply chain to avoid project delays. They prioritize parts that meet international industry standards, have traceable quality, and align with their equipment’s OEM requirements to reduce procurement risks.

• Maintenance Technicians: Require parts that are easy to install, resilient in harsh conditions, and fully compatible with existing equipment. They need practical technical guidance to quickly identify the right part for repairs, reduce maintenance time, and avoid rework or equipment damage.

• Equipment Operators: Depend on parts that ensure equipment safety and stability during daily operation. They need components that can withstand heavy loads, high pressure, extreme temperatures, and dusty or corrosive environments without failure.

• Drilling & Industrial Project Managers: Seek parts that minimize downtime and support consistent project progress. They value parts with long service lives, reliable performance, and access to technical support for quick troubleshooting to keep projects on track.

Product Introduction

Our product range covers a wide spectrum of engineering components, including but not limited to: fasteners (Stud Bolt X20-01-005, Hex Head Bolt GB5782-86, Nut T507-2001), drilling tools (Inserted Carbide Roller Bit 8-1/2″ HJT537G, Casing/Tubing Elevators TA(DD)3.5EU-100TB), hydraulic components (Hydraulic Line DQ70BS 50H0464 M30280, Pressure Reducing Valve LFR-1/2-D-5M-MAXI-A, Overflow Valve DB20-2-30/315), measuring instruments (Pressure Gauge FKQ640 40MPa, Flow Meter OM004H513-211R2, Density Meter Balance Cylinder XYM-2-1), bearings & assemblies (F005M Bearing Assembly, Bearing 430110010304400017, Static Friction Copper Disc Assembly 513985-02), and electrical components (Motor Assembly 512601050620000000, Control Circuit Board Cummins MX321, Amphenol Male Connector MS3106A 14S-6P).

All parts are manufactured using high-grade materials—including high-strength steel for fasteners, wear-resistant alloys for drilling tools, corrosion-resistant materials for hydraulic components, and precision-machined metals for bearings—undergoing strict testing (including pressure testing, wear resistance testing, dimensional accuracy verification, and electrical performance testing) to meet international standards such as ISO 9001, API 6A, and GB/T 13384. We focus on delivering parts that not only fit perfectly but also outperform OEM standards in terms of durability and performance in harsh industrial and drilling environments.

Function & Structural Features

Key Function of Core Products

• Stud Bolt X20-01-005: Secures components in drilling rigs and industrial equipment, providing strong, stable fastening to withstand vibration and heavy loads. It ensures components stay firmly in place during operation, preventing loosening or damage.

• Inserted Carbide Roller Bit 8-1/2″ HJT537G: Used for oil and gas drilling, featuring carbide inserts that deliver high drilling efficiency and resistance to wear. It is optimized for various formations, including soft to hard rock, reducing drilling time and bit replacement costs.

• Hydraulic Line DQ70BS 50H0464 M30280: Transmits high-pressure hydraulic oil between components in ZJ70 drilling rigs, ensuring smooth, leak-free flow to power hydraulic systems (winches, brakes, and valves). It is designed to withstand high pressure and corrosion.

• Pressure Gauge FKQ640 40MPa: Measures hydraulic or fluid pressure in industrial equipment and drilling rigs, providing accurate readings to ensure safe operation. It helps operators monitor system pressure and detect potential issues early.

• Control Circuit Board Cummins MX321: Regulates the speed of 800kW 600V generators, ensuring stable power output for drilling rigs and industrial equipment. It features reliable circuit design to withstand high vibration and harsh operating conditions.

Structural Features

• Precision Machining: All parts are processed using CNC (Computer Numerical Control) machining technology, with high dimensional accuracy (tolerance within ±0.01mm) to ensure seamless compatibility with OEM equipment. This precision eliminates the need for modifications during installation, saving maintenance time.

• Durable Material Selection: Fasteners use high-strength steel for maximum load-bearing capacity; drilling tools use wear-resistant carbide and alloys; hydraulic components use corrosion-resistant materials; and electrical components use high-temperature, anti-vibration materials to adapt to harsh working conditions.

• Reinforced Design: Components such as the Winch Drive Shaft ZJ-70 Sprocket 106.06.37.02 Z=61 P=12.7, Upper Chain Drive Box Z06030000042AA, and Disc Spring ZJ70DB BK-7-7A4 adopt a reinforced structure to improve load-bearing capacity and reduce wear, even under heavy-duty, continuous operation.

• Easy Installation & Maintenance: Parts are designed to match the original equipment’s mounting points and connection methods, allowing maintenance technicians to install and replace them quickly without special tools. Seals, gaskets, and filters are designed for easy access, simplifying routine maintenance.

• Accurate Performance: Measuring instruments (Pressure Gauge FKQ640 40MPa, Flow Meter OM004H513-211R2) and electrical components (Control Circuit Board Cummins MX321) feature high precision, ensuring accurate readings and stable performance to support safe equipment operation.

Applicable Working Conditions

Our engineering parts are widely used in various harsh and complex industrial and drilling environments, including:

• Oil & Gas Drilling: Suitable for ZJ30, ZJ40, ZJ50, ZJ50LDB, ZJ70, ZJ70D drilling rigs, including components such as Hydraulic Line DQ70BS 50H0464 M30280, Inserted Carbide Roller Bit 8-1/2″ HJT537G, and Winch Drive Shaft ZJ-70 Sprocket 106.06.37.02. These parts can withstand high downhole temperature (up to 150°C), high pressure (up to 52MPa), and dusty drilling sites.

• Industrial Boilers: Used in Boiler WNS1.0-1.25-Y, including Burner Motor P2A-112M-2, Pressure Gauge FKQ640 40MPa, and related components. They withstand high temperature and pressure, ensuring safe and stable boiler operation.

• Hydraulic & Winch Systems: Compatible with ZJ-40, ZJ-50, ZJ-70 winches and hydraulic systems, including Overflow Valve DB20-2-30/315, Winch Brake Operating Mechanism, and Piston Rod Seal BA 8007 00030. These parts handle high hydraulic pressure and heavy loads, ensuring reliable winch and hydraulic system operation.

• Power Generation & Industrial Equipment: Used in Cummins MX321 800kW 600V generators, SK pumps, and other industrial equipment, including Control Circuit Board, SK Pump Stroke/Speed Sensor SK-8B06FG, and Air Filter 8N6309. They ensure stable power output and equipment performance in industrial settings.

Maintenance & Care Recommendations

Proper maintenance of engineering parts is essential to extend their service life and ensure equipment performance. Below are practical, easy-to-follow maintenance suggestions tailored to our products:

• Regular Inspection: Check fasteners (Stud Bolt X20-01-005, Hex Head Bolt GB5782-86), hydraulic lines (DQ70BS 50H0464 M30280), and seals (Piston Rod Seal BA 8007 00030, Dust Ring J-50 Q/ZB336-77) every 500 operating hours for signs of wear, loosening, or leakage. Replace damaged parts promptly to avoid equipment failure.

• Filtration System Maintenance: Replace suction filters (ZJ32L 106.02.299.00), filter elements (TFX-63×100), and air filters (8N6309) every 1000 operating hours or as recommended by the equipment manual. Clean filter housings regularly to prevent impurity buildup, which can damage pumps, valves, and motors.

• Lubrication: Apply appropriate lubricating oil to moving parts such as bearings (F005M Bearing Assembly, 430110010304400017), winch drive shafts, and sprockets. Use lubricants that meet OEM specifications to reduce friction and wear, and avoid mixing different types of lubricants.

• Storage: Store spare parts in a dry, clean, and well-ventilated area. Avoid direct sunlight, high temperature, and humidity to prevent rust and aging. For electrical components and precision instruments, store them in anti-static packaging to protect their performance.

• Professional Installation & Testing: Ensure parts are installed by trained maintenance technicians. Follow OEM installation guidelines to avoid incorrect installation, which can cause part damage or equipment malfunction. After installation, test the equipment to ensure the part is working properly—especially for electrical components and pressure-sensitive parts.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, showing how our parts solve practical problems for customers, minimize downtime, and reduce maintenance costs:

Case 1: ZJ70 Drilling Rig Hydraulic Line Leakage

Equipment: ZJ70 drilling rig
Fault: The hydraulic system lost pressure, and the winch could not lift loads. The original hydraulic line (non-our product) was leaking oil at the connection points.
Diagnosis: The original hydraulic line was made of low-grade material with poor corrosion resistance, leading to wear and leakage at the connections after long-term use in high-pressure, dusty environments.
Solution: Replaced with our Hydraulic Line DQ70BS 50H0464 M30280, which is made of high-pressure-resistant, corrosion-resistant steel and features reinforced connection points. The line was installed quickly, and the hydraulic system was refilled with clean oil.
Result: The hydraulic system pressure returned to normal within 1.5 hours, and the winch resumed normal operation. The line has operated stably for 7 months without further leakage or damage.

Case 2: Generator Speed Control Failure

Equipment: Cummins MX321 800kW 600V generator
Fault: The generator’s speed fluctuated significantly, leading to unstable power output and affecting drilling rig operations. The original control circuit board (non-our product) was faulty.
Diagnosis: The original circuit board had poor anti-vibration performance, causing internal components to loosen during operation, leading to speed control failure.
Solution: Replaced with our Control Circuit Board Cummins MX321, which features a reinforced circuit design and anti-vibration components to ensure stable performance in high-vibration environments.
Result: The generator’s speed stabilized immediately, and power output returned to normal. The board has operated stably for 6 months without further malfunctions, ensuring continuous power supply for the drilling rig.

Case 3: Slurry Pump Filter Blockage & Efficiency Loss

Equipment: Industrial slurry pump with original suction filter (non-our product)
Fault: The pump’s flow rate decreased by 40%, and the motor overheated due to increased load. The original suction filter was severely blocked by impurities.
Diagnosis: The original filter had low filtration precision and a small dirt-holding capacity, leading to rapid blockage by slurry impurities.
Solution: Replaced with our Suction Filter ZJ32L 106.02.299.00, which has high filtration precision and a large dirt-holding capacity. Cleaned the pump pipeline and reset the motor.
Result: The pump’s flow rate returned to normal, motor temperature decreased, and the filter’s service life was extended by 50% compared to the original part. The pump operated stably for 4 months without further blockage.

FAQ (Frequently Asked Questions)

Procurement Guide & Call to Action

Procurement Reference Standards

When purchasing engineering parts for drilling rigs, boilers, and industrial equipment, it’s critical to choose products that meet the following standards to ensure equipment safety, performance, and cost-effectiveness:

• Compatibility: Confirm the part model matches your equipment (e.g., ZJ30, ZJ40, ZJ50LDB, ZJ70, WNS1.0-1.25-Y). Our parts are clearly marked with model numbers (e.g., Stud Bolt X20-01-005, Hydraulic Line DQ70BS 50H0464 M30280) for easy identification.

• Quality Certification: Choose parts that meet ISO 9001, API 6A, and relevant national standards, ensuring they have passed strict quality and performance testing.

• Material & Durability: Prioritize parts made of high-grade, wear-resistant, and corrosion-resistant materials to withstand harsh working conditions and extend service life, reducing long-term maintenance costs.

• Technical Support: Select suppliers that offer free technical support for part selection, installation, and fault diagnosis to solve problems quickly and avoid project delays.

Technical Problem Reference Standards

For common equipment faults, you can refer to the following solutions using our parts:

• Drill rig hydraulic pressure loss: Check hydraulic lines (DQ70BS 50H0464 M30280) and valves (Overflow Valve DB20-2-30/315) for leakage or damage; replace with our high-pressure-resistant parts to restore system pressure.

• Generator speed instability: Replace the control circuit board (Cummins MX321) with our anti-vibration model to ensure stable power output.

• Slurry pump inefficiency: Replace the suction filter (ZJ32L 106.02.299.00) with our high-precision, large dirt-holding capacity model to prevent blockage and restore pump performance.

Call to Action

If you’re looking for reliable, high-performance engineering parts—including Stud Bolt X20-01-005, Hydraulic Line DQ70BS 50H0464 M30280, Inserted Carbide Roller Bit 8-1/2″ HJT537G, Pressure Gauge FKQ640 40MPa, and more—we’re here to meet your needs. Our parts are crafted with precision, tested for durability, and designed to fit your equipment perfectly. Whether you need spare parts for routine maintenance, emergency repairs, or large-scale project supply, we offer competitive prices and comprehensive technical support. Contact us today to discuss your requirements, confirm part compatibility, and place your order. Let us be your trusted partner in keeping your drilling, boiler, and industrial equipment running at its best.

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.