Core Application & Target User Demand
This catalog covers specialized oil system and pipeline spare parts exclusively compatible with the ZJ40 Truck-mounted Drilling Rig (SJ Petro), critical for ensuring smooth oil transmission, stable pump operation, and reliable system connectivity. Tailored for oilfield maintenance teams, drilling contractors, and equipment repair workshops, it addresses pain points such as oil leakage, pump failure, and pipeline blockage caused by incompatible or low-quality parts. The core value lies in maintaining the integrity of the rig's oil supply system, reducing unplanned downtime, and extending equipment service life, specifically adapting to the high-load, high-temperature, and dusty outdoor drilling environment.
1. Oil Pump Core Components
Oil pump core components are the key to powering the rig's oil supply system, responsible for generating oil pressure and delivering lubricant to critical components. Failure leads to insufficient lubrication, component seizing, and system shutdown. Our parts comply with API 7K standards, featuring high precision machining and wear resistance to ensure reliable pump operation under continuous high-load drilling conditions.
Serial No. | Part Name & Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Gear, Oil Pump (LS107.25.07) | 42CrMo alloy steel; carburizing and quenching treatment; precision ground gear teeth | 1. Gear tooth wear caused by abrasive particles in contaminated oil; 2. Fatigue pitting due to long-term high-speed meshing under heavy load | 1. Use high-quality lubricating oil and replace oil filters regularly; 2. Monitor pump operating load, avoid prolonged operation beyond rated pressure |
2 | Bushing (7601-2530-04) | Copper-lead alloy; high-pressure resistant; precision machined inner diameter | 1. Bushing ablation caused by insufficient lubrication during pump startup; 2. Wear due to relative rotation with the pump shaft and contamination | 1. Pre-lubricate the pump before startup to ensure oil film formation; 2. Inspect bushing clearance quarterly, replace if exceeding OEM limits |
3 | Key (107.29.50.05) | 45# carbon steel; heat treatment; surface phosphating | 1. Shear failure caused by sudden torque impact during pump startup; 2. Wear due to micro-vibration between the gear and shaft | 1. Start the pump smoothly to avoid sudden torque surges; 2. Check keyway fit during maintenance, replace key if signs of wear are present |
4 | Coupling (7601-2550-85) | Cast iron (HT250) outer sleeve; rubber damping element; 45# steel connecting bolts | 1. Damping element aging and cracking due to long-term vibration; 2. Coupling deformation caused by misalignment between pump and motor shafts | 1. Align pump and motor shafts precisely during installation; 2. Replace rubber damping elements every 800 operating hours |
5 | Coupling | Stainless steel (304) outer sleeve; nitrile rubber insert; corrosion-resistant design | 1. Rubber insert wear due to frequent start-stop cycles; 2. Corrosion of the outer sleeve caused by outdoor moisture and oil contamination | 1. Reduce unnecessary frequent start-stops; 2. Clean the coupling regularly and apply anti-corrosion grease to exposed parts |
6 | Hub Assembly (107.29.74.00) | 42CrMo alloy steel hub; GCr15 bearing; stainless steel (304) fasteners | 1. Bearing damage caused by dust intrusion and insufficient lubrication; 2. Hub fatigue cracking due to long-term torque transmission | 1. Install a dust cover to prevent debris intrusion; 2. Inject lubricating grease into the bearing every 500 operating hours |
2. Pipeline Connection Components
Pipeline connection components are critical for ensuring airtightness and stability of the rig's oil pipeline system, facilitating flexible routing and secure connection of pipelines. Failure leads to oil leakage, pressure loss, and system inefficiency. Our parts feature high-precision threads and corrosion resistance, adapting to the high-pressure oil environment and harsh outdoor drilling conditions.
Serial No. | Part Name & Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Valve, Relief (7602-2914-78) | 2Cr13 stainless steel valve body; 40Cr alloy steel valve core; FKM (Viton) seals | 1. Valve core wear caused by high-pressure oil impact and contamination; 2. Seal failure due to long-term exposure to high-temperature oil | 1. Regularly inspect and calibrate relief pressure to OEM specifications; 2. Replace seals every 6 months and use oil that meets system requirements |
2 | Connector (7601-2730-08) | Brass; quick-connect design; nitrile rubber seals | 1. Seal wear due to frequent connection and disconnection; 2. Thread damage caused by over-tightening during installation | 1. Avoid rough connection/disconnection operations; 2. Use a torque wrench to fasten to specified torque, apply thread sealant if needed |
3 | Connector (7601-2730-04) | Stainless steel (304); precision machined threads; passivated surface | 1. Corrosion caused by outdoor moisture and salt spray (in coastal areas); 2. Thread wear due to repeated disassembly during maintenance | 1. Cover with dust caps when not in use; 2. Apply anti-corrosion grease to threads during installation and maintenance |
4 | Connector (7601-2730-86) | Aluminum alloy; lightweight design; EPDM rubber seals | 1. Seal failure due to temperature fluctuations; 2. Aluminum corrosion caused by contact with incompatible chemicals | 1. Ensure the connector is used within the recommended temperature range; 2. Avoid contact with corrosive cleaning agents |
5 | Elbow, Male (7601-2750-35) | Brass; 90-degree angle; precision threads | 1. Thread wear caused by improper installation tools; 2. Body damage due to pipeline vibration and impact | 1. Use matching wrenches to avoid slipping and damaging threads; 2. Secure adjacent pipelines to reduce vibration transmission |
6 | Elbow, Male (7601-2750-04) | Stainless steel (304); 90-degree angle; anti-corrosion finish | 1. Corrosion caused by long-term exposure to oil and moisture; 2. Joint leakage due to improper sealing | 1. Clean the sealing surface before installation; 2. Replace PTFE sealing tape or gaskets during each disassembly |
7 | Elbow, Male (7601-2750-05) | Brass; 90-degree angle; thick-walled design | 1. Fatigue cracking due to repeated pressure cycles; 2. Thread stripping caused by over-tightening | 1. Monitor system pressure fluctuations, avoid frequent overpressure; 2. Follow OEM torque specifications during installation |
8 | Elbow, Male (7601-2750-06) | Brass; 90-degree angle; polished surface | 1. Surface corrosion caused by outdoor exposure; 2. Seal damage due to burrs on mating surfaces | 1. Apply anti-corrosion paint to exposed surfaces if needed; 2. Deburr mating surfaces before installation |
9 | Elbow, 45 Degree Male (7601-2750-27) | Stainless steel (304); 45-degree angle; precision machining | 1. Wear at the elbow due to high-velocity oil flow; 2. Corrosion caused by contaminated oil | 1. Ensure oil flow rate is within OEM limits; 2. Maintain clean oil system and replace filters regularly |
10 | Elbow (7601-2752-00) | Brass; 90-degree angle; compression fitting design | 1. Compression fitting damage due to improper tightening; 2. Seal leakage caused by pipeline misalignment | 1. Align the pipeline correctly before tightening the fitting; 2. Tighten the compression nut gradually to avoid over-tightening |
11 | Union (7601-2810-03) | Stainless steel (304); union nut design; nitrile rubber gaskets | 1. Gasket wear due to frequent disassembly; 2. Corrosion of the union body caused by moisture | 1. Replace gaskets every time the union is disassembled; 2. Store spare unions in a dry, sealed container |
12 | Union (7601-2810-02) | Brass; union nut design; asbestos-free graphite gaskets | 1. Gasket compression deformation due to over-tightening; 2. Thread wear caused by repeated use | 1. Use a torque wrench to fasten to specified torque; 2. Apply thread lubricant to reduce wear during installation |
13 | Adapter (7601-2091-39) | Stainless steel (316); multi-thread specification; precision machined | 1. Thread wear caused by cross-threading during installation; 2. Corrosion caused by aggressive media in the oil | 1. Ensure correct thread matching before installation; 2. Use oil compatible with stainless steel 316 to avoid corrosion |
3. Tubing Assembly Components
Tubing assembly components are the main channel for oil transmission in the rig's lubrication system, requiring high pressure resistance and flexibility. Failure leads to oil leakage, pipeline rupture, and interruption of oil supply to critical components. Our assemblies feature high-quality tubing and secure fittings, complying with ISO 4406 standards to ensure reliable oil transmission in harsh drilling environments.
Serial No. | Part Name & Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Tubing Assembly (107.29.56.00) | Stainless steel (304) tubing; brass fittings; rubber protective sleeves | 1. Tubing wear and rupture due to friction with adjacent components; 2. Fitting leakage caused by vibration | 1. Install protective sleeves at friction points; 2. Secure the assembly with pipe clamps to reduce vibration |
2 | Tubing Assembly (107.29.57.00) | Carbon steel tubing; galvanized finish; stainless steel (304) fittings | 1. Tubing corrosion caused by outdoor moisture; 2. Fitting thread wear due to repeated disassembly | 1. Touch up galvanized finish when damaged; 2. Apply anti-corrosion grease to fittings and avoid unnecessary disassembly |
3 | Tubing Assembly (107.29.58.00) | Copper tubing; brass fittings; heat-resistant insulation | 1. Tubing bending and cracking due to improper installation; 2. Insulation damage caused by high-temperature exposure | 1. Ensure tubing bending radius is ≥ 10 times the tube diameter; 2. Keep away from high-temperature components (e.g., exhaust pipes) |
4 | Tubing Assembly (107.29.59.00) | Stainless steel (304) tubing; quick-connect fittings; nitrile rubber seals | 1. Seal failure due to frequent connection/disconnection; 2. Tubing damage caused by impact during rig transportation | 1. Minimize frequent connection/disconnection; 2. Install protective guards for vulnerable sections during transportation |
5 | Tubing Assembly (107.29.60.00) | Carbon steel tubing; powder coating; brass fittings | 1. Powder coating peeling due to friction and impact; 2. Fitting corrosion caused by oil leakage | 1. Avoid contact with sharp objects; 2. Inspect for oil leakage monthly and clean fittings promptly |
6 | Tubing Assembly (107.29.61.00) | Stainless steel (316) tubing; compression fittings; PTFE seals | 1. Seal wear due to temperature fluctuations; 2. Tubing blockage caused by contaminated oil | 1. Ensure operation within recommended temperature range; 2. Maintain clean oil system and replace filters regularly |
7 | Tubing Assembly (107.29.62.00) | Aluminum alloy tubing; lightweight design; aluminum fittings | 1. Tubing deformation due to improper handling during installation; 2. Corrosion caused by contact with moisture | 1. Handle with care during installation to avoid bending; 2. Apply anti-corrosion treatment to exposed ends |
8 | Tubing Assembly (107.29.63.00) | Stainless steel (304) tubing; flare fittings; brass nuts | 1. Flare damage caused by over-tightening; 2. Tubing wear due to vibration | 1. Follow OEM flare torque specifications; 2. Use vibration-damping pipe clamps for secure installation |
9 | Tubing Assembly (107.29.64.00) | Carbon steel tubing; black oxide finish; steel fittings | 1. Tubing corrosion caused by long-term oil immersion; 2. Fitting loosening due to rig vibration | 1. Use corrosion-inhibiting oil; 2. Inspect fitting tightness monthly and retighten if necessary |
10 | Tubing Assembly (107.29.65.00) | Stainless steel (304) tubing; swivel fittings; nitrile rubber seals | 1. Seal wear due to swivel motion; 2. Fitting damage caused by excessive rotation | 1. Apply lubricating grease to swivel joints regularly; 2. Limit rotation to the recommended range |
11 | Tubing Assembly (107.29.66.00) | Copper tubing; soft material; brass compression fittings | 1. Tubing kinking due to improper bending; 2. Fitting leakage caused by uneven compression | 1. Use a tube bender for proper bending; 2. Tighten compression nuts evenly and gradually |
12 | Tubing Assembly (107.29.67.00) | Stainless steel (316) tubing; high-pressure fittings; FKM seals | 1. Seal failure due to high-pressure operation beyond limits; 2. Tubing fatigue caused by pressure cycles | 1. Monitor system pressure to stay within OEM limits; 2. Inspect for fatigue cracks quarterly |
13 | Tubing Assembly (107.29.68.00) | Carbon steel tubing; galvanized finish; brass fittings | 1. Galvanized layer peeling due to impact; 2. Fitting corrosion caused by salt spray (coastal areas) | 1. Install protective guards in high-impact areas; 2. Apply anti-corrosion grease to fittings in coastal environments |
14 | Tubing Assembly (107.29.69.00) | Stainless steel (304) tubing; barbed fittings; hose clamps | 1. Tubing damage at barbs due to over-tightening clamps; 2. Leakage caused by clamp loosening | 1. Use appropriate clamp torque; 2. Inspect clamps monthly and retighten if needed |
15 | Tubing Assembly (107.29.70.00) | Aluminum alloy tubing; anodized finish; aluminum fittings | 1. Anodized finish wear due to friction; 2. Fitting corrosion caused by incompatible cleaning agents | 1. Install protective sleeves at friction points; 2. Use compatible cleaning agents for maintenance |
16 | Tubing Assembly (107.29.71.00) | Stainless steel (304) tubing; welded fittings; stainless steel nuts | 1. Weld joint fatigue cracking due to vibration; 2. Tubing corrosion caused by moisture | 1. Use vibration-damping mounts; 2. Inspect weld joints quarterly for cracks |
17 | Tubing Assembly (107.29.72.00) | Carbon steel tubing; powder coating; stainless steel (304) fittings | 1. Powder coating peeling due to temperature changes; 2. Fitting leakage caused by thread damage | 1. Avoid direct exposure to high-temperature heat sources; 2. Use thread protectors during storage and transportation |
18 | Tubing Assembly (107.29.73.00) | Stainless steel (316) tubing; quick-disconnect fittings; FKM seals | 1. Seal aging due to long-term use; 2. Fitting damage caused by rough disconnection | 1. Replace seals every 6 months; 2. Use proper tools for connection and disconnection |
Procurement & Technical Reference Standards
All parts in this catalog comply with API Spec 7K (Drilling Equipment), API Spec 4F (Drilling and Well Servicing Structures), and ISO 9001:2015 quality management system standards, ensuring strict compatibility with the ZJ40 Truck-mounted Drilling Rig (SJ Petro). For procurement, it is mandatory to confirm the exact part number, rig model, and serial number to avoid mismatches; we recommend purchasing critical spare parts (e.g., Gear, Oil Pump LS107.25.07, Relief Valve 7602-2914-78) in backup quantities to minimize downtime.
Technical reference guidelines for maintenance: 1) Establish a hierarchical maintenance schedule based on operating hours (e.g., daily visual inspection of tubing assemblies and connections for leakage, weekly oil pressure and filter status checks, monthly fastener and fitting tightness inspection, semi-annual replacement of key seals and rubber components); 2) Use only OEM-compatible spare parts and professional tools to avoid damaging the system's precision fit and pressure stability; 3) Maintain detailed records of part replacement and maintenance activities, including operating hours, inspection results, and replacement parts information, for full lifecycle traceability; 4) Conduct pre-operation inspections of the oil system to ensure sufficient oil quantity, normal pressure, and no leakage before starting drilling operations.
For technical issues, our team of certified drilling equipment engineers provides professional consulting services, including part selection guidance, on-site maintenance support, and failure analysis for oil system and pipeline faults. We also offer customized training to help your team master proper part replacement and maintenance techniques, ensuring the safe and efficient operation of the ZJ40 truck-mounted drilling rig's oil system.
Call to Action
Reliable oil system and pipeline parts are crucial for maintaining the stable operation of your ZJ40 Truck-mounted Drilling Rig (SJ Petro). Our catalog offers high-quality, OEM-compatible components with strict quality control processes, designed to address the unique challenges of the rig's oil transmission and supply system. Whether you need urgent replacement parts for unplanned downtime, long-term spare parts supply agreements, or professional technical support for system maintenance, our sales team is ready to assist. Contact us today to discuss your specific needs and receive personalized procurement solutions that reduce maintenance costs, minimize downtime, and maximize the operational reliability of your drilling rig.
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