Product Introduction
This comprehensive DQ450 DBZ TDS parts lineup covers all essential consumables, structural assemblies, hydraulic parts, and electrical connectors for routine preventive maintenance, full system overhauls, and emergency field repairs. Included are forged mainshafts, mud pipe assemblies, premium drilling mud packing, explosion-proof solenoid valves, high-performance piston pumps, SAE flanges, cooling systems, and OEM-matched fasteners/seals—each labeled with unique catalog numbers for easy inventory tracking and cross-referencing. All components undergo strict quality testing, ensuring drop-in compatibility and consistent performance for the DQ450 DBZ TDS top drive.
Functional Specifications
- Mud Circulation & Sealing: Mud pipes, gooseneck assemblies, and drilling mud packing maintain leak-proof mud flow, preventing pressure loss and contamination during drilling and tripping operations
- Structural Load Support: Forged mainshafts, hanging eyelets, and strops handle heavy rotational torque and 350-ton lifting loads, ensuring stable top drive operation
- Well Control Safety: Manual and automatic internal BOP assemblies provide reliable wellbore pressure control, meeting global drilling safety regulations
- Hydraulic System Control: Piston pumps, explosion-proof solenoid valves, and high-pressure hoses regulate hydraulic flow and pressure for smooth top drive actuation
- Filtration & Cooling: Oil suction filters, coolant assemblies, and pressure gauges maintain clean hydraulic fluid and stable operating temperatures, preventing overheating and component wear
Structural Design Features
- Forged alloy steel mainshafts with tensile strength ≥950 MPa, resistant to fatigue and torsional stress under continuous drilling duty
- High-grade nitrile rubber O-rings and mud packing with oil/mud resistance, rated for 6,000+ operating hours before replacement
- Intrinsically safe explosion-proof solenoid valves (24DC) certified for hazardous drilling environments, eliminating ignition risks
- Modular, pre-assembled components (gooseneck, flushing pipe, cooling unit) for quick field installation, cutting repair time by up to 40%
- Standardized SAE flanges, stainless steel piping, and electrical connectors for universal compatibility with DQ450 DBZ TDS interfaces
Applicable Operating Conditions
These DQ450 DBZ TDS top drive parts are designed for heavy-duty drilling scenarios across onshore land rigs, offshore platforms, and directional drilling projects. They perform reliably in high-sediment mud environments, high-humidity marine conditions, and continuous 24/7 operation, compatible with all standard water-based and oil-based drilling fluids. All components comply with international drilling equipment safety and performance standards, making them suitable for global oilfield applications.
Maintenance & Service Recommendations
- Seal & Packing Inspection: Check mud packing, O-rings, and hydraulic seals every 400 operating hours for wear, cracking, or deformation; replace immediately to prevent leaks
- Filter Replacement: Change oil suction filters and inline filters every 600 hours to keep hydraulic fluid clean and avoid system contamination
- Torque Verification: Re-torque all M16 screws and fasteners to OEM specifications after installation and every 800 hours to maintain clamping integrity
- Hydraulic Component Check: Calibrate pressure gauges and test solenoid valves every 1,000 hours to ensure accurate pressure control and system responsiveness
- Storage Protocols: Store seals, electrical connectors, and hydraulic parts in a dry, dust-free environment; protect precision components from impact and UV exposure
We supply the following spare parts:
| No | Catalog Number | Name | Specification and Dimensions | ed measurement |
| 1 | DQ004.12.01 | Mainshaft | PC | |
| 2 | DQ004.06.00 | Gooseneck assembled | computer | |
| 3 | DQ004.04.00 | Flushing pipe assembly | computer | |
| 4 | DQ004.04.02 | Mud Pipe | PC | |
| 5 | SL001.05.04 | Drilling mud packing | PC | |
| 6 | GB/T3452.1 | O-ring | 109×5.3 | PC |
| 7 | GB/T3452.1 | O-ring | 122×5.3 | PC |
| 8 | DH012.03 | Strop | DH350-L3050 | PC |
| 9 | DQ002.06.08.05.00 | Hanging eyelet | PC | |
| 10 | 2K-305 (604-0127) | Rotator motor | PC | |
| 11 | 2–341 | O-ring | PC | |
| 12 | 2-335/8-332 | O-ring | PC | |
| 13 | 8–335 | Parbak clamping ring | PC | |
| 14 | 2–332 | O-ring | PC | |
| 15 | 8–332 | Parbak clamping ring | PC | |
| 16 | GB/T3452.1 | Screw | M16x70 | PC |
| 17 | GB/T3452.1 | Screw | M16x50 | PC |
| 18 | DQ001.02.02 | Manual Internal BOP | PC | |
| 19 | DQ004.02.10.00 | Automatic Internal BOP | PC | |
| 20 | DQ004.02.03 | Mounting support | PC | |
| 21 | DQ018.02.03.02 | Guide rod | PC | |
| 22 | DQ004.02.03.03LS | Roller support | PC | |
| 23 | CF24 BR | Video clip | PC | |
| 24 | GB/T 14976 | Stainless steel pipe | PC | |
| 25 | AC-16-22-16RN | Three way adapter | PC | |
| 26 | A10V028DR/31R-PSC12K01 | Piston pump | PC | |
| 27 | FL-12 | SAE clamping flange | PC | |
| 28 | FL-20 | SAE clamping flange | PC | |
| 29 | DHA-0631/2/PA-M/7 24DC | Explosion Proof Solenoid Valve | PC | |
| 30 | DHA-0631/2/A/PA-M/7 24DC | Explosion Proof Solenoid Valve | PC | |
| 31 | DHA-0713/PA-M/7 24DC | Explosion Proof Solenoid Valve | PC | |
| 32 | CQJ-DH | Nitrogen filling screw | PC | |
| 33 | HFH2-P1-3-P-1 | High pressure hose | PC | |
| 34 | YN-63-III 0-25 Mpa | Pressure gauge | 0-25 MPa | PC |
| 35 | TF100x100L | Oil suction filter | PC | |
| 36 | SP-10×25 | Filter | PC | |
| 37 | 16 II-660J26C1-F12C9 | Hose assembly | PC | |
| 38 | 25 I-1800J42D1 | Hose assembly | PC | |
| 39 | YJ13,500,000L | Cooling device assembled with electric motors | (Left side) | computer |
| 40 | YJ13,500,000 | Cooling device assembled with electric motors | (Right side) | computer |
| 41 | TD*PRES-E016-42 | Socket/plug | X0131 | computer |
| 42 | TD*RPMP-E016-42 | Socket/plug | X0111 | computer |
| 43 | TD*RPES-E016-19 | Socket/plug | X0130 | computer |
| 44 | TD*RPMP-E014-19 | Socket/plug | X0110 | computer |
On-Site Fault Repair Case Studies for DQ450 DBZ TDS
Case 1: Mud Leakage from Worn Drilling Mud Packing
An onshore deep well rig experienced severe mud leakage from the DQ450 DBZ TDS top drive’s mud passage, disrupting drilling circulation. Technicians replaced the worn drilling mud packing with OEM-spec DQ450 components, reseated the mud pipe assembly, and restored leak-free operation in 1.5 hours, avoiding a costly 2-day rig shutdown. Root cause: abrasive mud particles accelerated packing wear.
Case 2: Hydraulic System Failure from Faulty Solenoid Valve
An offshore drilling platform reported unresponsive top drive actuation, traced to a failed explosion-proof solenoid valve (DHA-0631/2 series). The faulty valve was replaced with a genuine DQ450-spec unit, the hydraulic system was bled, and normal operation resumed within 90 minutes. Root cause: voltage fluctuations damaged the solenoid coil.
Case 3: Overheating Due to Clogged Oil Suction Filter
A directional drilling project faced DQ450 DBZ TDS hydraulic overheating and reduced pump output, caused by a clogged TF100x100L oil suction filter. Replacement filters were installed, the hydraulic system was flushed, and operating temperatures stabilized within 1 hour. Root cause: delayed filter maintenance led to fluid contamination and restricted flow.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts fully compatible only with the DQ450 DBZ TDS top drive? | Yes, every component is precision-designed and tested exclusively for the DQ450 DBZ TDS top drive system, ensuring perfect fitment and OEM-matched performance. |
| What pressure rating do the hydraulic and pressure gauge components have? | The YN-63-III pressure gauges are rated for 0-25 MPa, matching the DQ450 DBZ TDS hydraulic system’s maximum operating pressure for safe and accurate monitoring. |
| Can these parts be used for both routine maintenance and emergency repairs? | Absolutely. This list includes routine consumables (filters, seals, packing) and critical structural/hydraulic parts (mainshaft, BOP, solenoid valves) for scheduled upkeep and urgent field fixes. |
Procurement Guidance & Closing Value Statement
This DQ450 DBZ TDS top drive parts catalog is a dual-purpose resource that sets a clear, reliable procurement standard and provides actionable technical guidance for resolving common top drive failures. By selecting these precision-matched components, you eliminate the risks of inferior generic parts—including frequent breakdowns, extended downtime, and safety hazards—while maximizing the operational lifespan and performance of your DQ450 DBZ TDS top drive. Every part adheres to strict industrial quality standards, ensuring consistent reliability for all drilling operations.
Purchase Call to Action
Stock up on these DQ450 DBZ TDS top drive spare parts to prepare for routine maintenance, planned overhauls, and unexpected field repairs. Submit your detailed inquiry with the specific catalog numbers, part descriptions, and quantities you require, and we will provide transparent pricing, full technical specifications, and dedicated supply support tailored to your drilling operation’s needs. Secure high-quality, compatible DQ450 DBZ TDS parts to maintain rig uptime, comply with industry safety standards, and keep your drilling projects on track without disruption.
