Product Introduction
Our ZJ70D drilling rig parts cover all high-criticality wear and functional modules: SL450 swivel clutch/air motor assemblies, JC70D drawworks hydraulic brake pads, bearings, and pneumatic control valves, ZP375 rotary table chains and pneumatic clutches, and F1600 mud pump lubrication units and seals. Each component is crafted from high-grade alloy steel, wear-resistant friction materials, oil/heat-resistant elastomers, and explosion-proof pneumatic parts, undergoing non-destructive testing (NDT) and load-cycle testing to match OEM performance ratings. Every part aligns with original factory part numbers (e.g., AD450001 series swivel parts, PS702407 drawworks brake pads) for direct drop-in installation, requiring no custom modification or on-site machining.
Functional Capabilities
- Hoisting System Reliability: SL450 swivel bearings and clutches enable smooth drill string rotation, while JC70D drawworks brake pads and pneumatic valves deliver secure hoisting control and emergency stopping for 70-ton load capacities.
- Rotary System Power Transfer: ZP375 rotary table chains and pneumatic tyre clutches provide consistent torque transmission, driving wellbore rotation with minimal slippage and vibration.
- Circulation System Stability: F1600 mud pump lubrication pumps and plugs maintain proper gear oil circulation, preventing pump overheating and premature internal wear.
- Leak-Proof Sealing: High-performance oil seals and O-rings contain lubricants and hydraulic fluid, eliminating leaks that cause component damage and safety hazards.
- Pneumatic Control Precision: Shuttle valves, reversing valves, and rapid escape valves regulate drawworks air pressure, ensuring responsive speed and motion control.
Structural Design Features
- OEM Exact Interchangeability: Perfect dimensional and mounting matches to original ZJ70D rig designs, cutting installation and maintenance labor time by 42%.
- Heavy-Duty Load Capacity: Heat-treated alloy bearings, brake pads, and drive chains rated for 7000-meter drilling loads, resisting fatigue and wear under continuous operation.
- Wear-Resistant Materials: Oil-resistant nitrile oil seals, friction-optimized brake pads, and high-tensile steel chains built for harsh drilling conditions.
- Modular Replacement Design: Quick-replace subassemblies (clutch units, valve boxes, lubrication pumps) enable fast field repairs during routine maintenance or emergency breakdowns.
Applicable Operating Conditions
These ZJ70D rig parts are validated for extreme onshore drilling environments, including:
- ZJ70D (JZ70D) 7000-meter land drilling rigs (hoisting, rotary, and circulation systems)
- Continuous 24/7 duty cycles with high-frequency 70-ton hoisting and rotary loads
- Harsh field conditions with dust, moisture, and temperature fluctuations (-30°F to 210°F)
- Onshore oil & gas, geothermal, and directional drilling projects
- High-vibration rig environments with abrasive drilling fluids
Maintenance & Service Best Practices
- Inspect JC70D drawworks hydraulic brake pads every 800 operating hours; replace pads when wear thickness reaches 3mm to maintain full braking efficiency and prevent brake fade.
- Lubricate SL450 swivel bearings and ZP375 rotary table chains with API-certified extreme-pressure grease every 500 hours, and check oil seals for leaks monthly.
- Test pneumatic valves (shuttle, reversing, rapid escape) every 600 hours for air leaks or jamming, cleaning or replacing faulty valves to preserve responsive drawworks control.
- Inspect F1600 mud pump lubrication pumps quarterly for proper oil flow, replacing worn plugs and seals to maintain consistent lubrication pressure.
- Check ZP375 rotary table chains for stretch and wear every 1000 hours, replacing chains if elongation exceeds 2% to prevent drive failure.
- Torque all clutch fasteners and bearing mounts to manufacturer-specified values to avoid loosening from rig vibration and heavy load cycling.
- We supply the following spare parts:
| DESCRIPTION AND PART NUMBER |
| 1. AD450001-2200B1- Clutch assembly |
| 2. AD45000-2300B1 – Air motor assembly |
| 3. AD450001-21– Protection plug |
| 4. 4301040032 – Bearing 2007140 |
| 5. 53030114250 – Oil seal PD250x290x18 |
| 1. PS702407-00– Hydraulic disc brake pads |
| 1. 43011001– Bearing UN240 |
| 1. 5127041106 – Shuttles valve ND5 |
| 2. 5127043006 – Handle reversing valve (2-HA-3) |
| 3. 5127043006 – Handle reversing valve (2-HA-2Z) |
| 4. 5127043006– Handle reversing valve (2-HA-2) |
| 5. 5127043006 – Handle reversing valve (2-HA-1) |
| 6. 5127043106 – Button valve (ND7) |
| 7. 5127010102 – Control Valve Box assembly |
| 8. 44120501001 – Stainless steel ball valve Rc1/2 |
| 9. 5127040706 – Rapid escape valve G1/2 (ND12) |
| 10. 5127040706 – Rapid escape valve G3/8 (ND10) |
| 1. 4801010140– Chain 24S-4X122 (122 section) |
| 2. 4801010140– Chain 24S-4X134 ( 134 section) |
| 1. BG322004-031300– Oil ring unit |
| 2. T104-002.00– Pneumatic tyre clutch L T500/125 |
| 3. 43010300222– Bearing 22228C/W33 (f140Xf250X68) |
| 4. 42020104071– Bolt with holeM10X30 (GB/T5780) |
| 1. AD45000-15 – Plug NPT1 |
| 2. Mud Pump gear oil lubrication pump unit (Type: YB2 112M – 6W, 2.2Kw, 380V, 5.6A, 940r/min, 50Hz) |
Field Failure Repair Case Studies
Case 1: JC70D Drawworks Brake Pad Wear (ZJ70D Rig)
A ZJ70D rig experienced unsafe braking performance due to heavily worn hydraulic brake pads, risking uncontrolled drill string movement. Replacing 60 OEM-compatible PS702407-00 brake pads restored full braking capacity, complying with API safety standards and resuming drilling operations within 3 hours.
Case 2: SL450 Swivel Oil Seal Leak (ZJ70D Rig)
A damaged PD250x290x18 oil seal on the SL450 swivel caused lubricant leakage, threatening bearing failure. Installing new OEM-spec oil seals and re-lubricating the 2007140 bearings eliminated leaks and extended swivel service life to 1500+ operating hours.
Case 3: Pneumatic Valve Malfunction (JC70D Drawworks)
A faulty ND5 shuttle valve disrupted drawworks air pressure control, causing erratic hoisting speed. Replacing the defective valve and inspecting related reversing valves restored stable pneumatic operation, eliminating downtime and ensuring precise load handling.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts 100% compatible with the ZJ70D (JZ70D) drilling rig? | Yes, every component is precision-designed exclusively for the ZJ70D/JZ70D 7000-meter rig, matching OEM part numbers and mounting dimensions for direct drop-in fit. |
| What core rig systems do these parts cover? | These spares cover the ZJ70D hoisting system (SL450 swivel, JC70D drawworks), rotary system (ZP375 rotary table), and circulation system (F1600 mud pump). |
| How often should JC70D drawworks brake pads be replaced? | Brake pads should be replaced every 800-1000 operating hours, or immediately if wear thickness exceeds 3mm to maintain safe braking performance. |
Procurement Guidance
For drilling operators focused on maximizing ZJ70D rig reliability, minimizing unplanned downtime, and upholding strict API safety and operational standards, our OEM-compatible replacement parts are the definitive sourcing solution. This catalog provides full transparency on part descriptions, OEM part numbers, quantities, and system-specific applications, serving as your trusted benchmark for compliant, cost-effective procurement. Whether you need emergency repair parts for unexpected rig breakdowns, routine wear components for scheduled maintenance, or bulk inventory stock for long-term drilling operations, each component is engineered to resolve critical technical issues and deliver long-term durability in harsh onshore drilling conditions. Submit your detailed parts inquiry with specific ZJ70D part numbers, required quantities, and rig system (hoisting/rotary/circulation) details to secure high-quality, precision-matched components tailored to your operational needs. Our technical team provides full compatibility verification, API compliance documentation, and expert troubleshooting guidance to streamline your procurement process and ensure seamless field installation.
