Our Manufacturing | Xinhao Drilling Rig

Xinhao Drilling Rig - Has Been Dedicated To Providing Global Solutions In Exploration And Water Well Drilling for 16 Years.

Raw Material Procurement and Incoming Inspection (Source Quality Control)

Core Raw Material Selection:

Procure core materials such as high-strength alloy steel, diesel engines of first-tier brands, and high-quality hydraulic components. All raw materials are sourced from suppliers with industry-certified qualifications to ensure basic quality from the source.

Strict Incoming Inspection Mechanism:

Specialized material analyzers are used to conduct composition testing on steel to ensure it meets high-strength mechanical performance requirements. Unqualified raw materials are directly rejected, achieving a 100% raw material admission qualification rate.

For purchased parts such as diesel engines and hydraulic components, verify the factory qualification certificates, conduct visual inspection and preliminary functional tests. The sampling inspection coverage rate for key parameters (e.g., rated power of diesel engines, pressure resistance level of hydraulic components) reaches 30% to prevent unqualified parts from entering the production process.

Precision Component Machining Process (Core of Process Accuracy)

Core Equipment Configuration:

Adopt CNC machining centers and CNC lathes/milling machines equipped with German Siemens systems, which can process complex components such as frames, gearbox housings, and drill pipes, with a positioning accuracy of ±0.005mm.

Key Processes and Technical Advantages:

Implement the "one-time clamping and multi-process machining" mode to reduce clamping errors during process transfer and ensure the dimensional consistency of components.

After machining high-strength alloy steel drill pipes, an additional "modulation heat treatment" (quenching + tempering) process is carried out to make the drill pipe hardness ≥ HRC30 while improving toughness, achieving both wear resistance and impact resistance.

Strictly control the dimensional tolerances of key components according to process standards: the inner diameter tolerance of drill pipes ≤ ±0.1mm, and the positioning accuracy of frame mounting holes is ±0.05mm, ensuring component interchangeability and assembly compatibility.

Structural Forming and Welding Process (Key to Strength Assurance)

Welding Process Implementation:

The main body of the frame is welded by skilled technicians with more than 8 years of working experience and holding special equipment operation certificates. "Manual TIG welding" is adopted for complex corner parts to ensure uniform and stable weld formation.

"Submerged arc automatic welding" process is additionally used for the load-bearing welds of the drill tower to enhance the overall strength and load-bearing capacity of the welds.

Non-Destructive Testing Standards:

After welding, a dual detection method of "ultrasonic testing (UT) + magnetic particle testing (MT)" is adopted. The detection rate of internal weld defects (such as air holes and cracks) is over 99%, eliminating potential structural safety hazards.

Surface Treatment and Anti-Corrosion Coating Process (Durability Upgrade)

Multi-Layer Protection Process:

Implement a 4-layer standard protection process (phosphating layer → epoxy primer → epoxy micaceous iron intermediate coat → acrylic polyurethane topcoat) with a total film thickness ≥ 120μm. For customized models used in humid/dusty working conditions, an additional "zinc-chromium coating" is added, and the salt spray test can last for more than 1000 hours, far exceeding the industry standard of 600 hours.

Environmental Protection Technical Advantages:

Fully adopt water-based environmentally friendly coatings, which strictly comply with national VOC emission limits, realizing both anti-corrosion performance and environmental protection requirements, and becoming an industry benchmark for green production.

Modular Assembly Process (Efficient and Accurate Final Assembly)

Assembly Execution Standards:

Rely on the modular assembly platform and strictly follow the Drill Rig Final Assembly Process Manual. Key connection points (e.g., drill tower connecting bolts) are tightened according to the torque requirement of ≥ 800N·m to ensure assembly stability.

Core Component Integration:

Precisely assemble the machined structural parts with diesel engines, hydraulic components, electrical control systems, etc. During the assembly process, basic functional verification is conducted simultaneously to avoid rework in subsequent commissioning.

Comprehensive Commissioning and Quality Inspection Process (Factory Quality Closure)

Hierarchical Commissioning Mechanism

No-Load Commissioning: Test basic parameters such as hydraulic system pressure, electrical control response speed, and drill pipe rotation accuracy to ensure the independent normal operation of each system.
Load Commissioning: Use the complete machine working condition simulator to apply 50%/100% rated drilling pressure, simulate actual drilling resistance, and test the overall operation stability, continuous power output, and fuel consumption indicators of the drill rig. The commissioning duration is not less than 8 hours.

Full-Process Testing Methods

Key Equipment Testing: Coordinate Measuring Machine (measurement range: 2000×1500×1000mm, accuracy: ±0.008mm): Conduct 100% inspection on the spatial dimensional accuracy of key components such as drill pipe joints.
Load Testing Machine (rated load ≥ 500kN): Conduct tension and bending tests on drill pipes to verify whether their mechanical properties meet the standards.
Hydraulic System Test Bench and Electrical Control System Debugging Instrument: Conduct special testing on the operating parameters of each system to ensure compliance with design standards.
Testing Standards and Mechanisms: Comply with the ISO 9001 quality management system and industry standards such as General Technical Conditions for Geological Drill Rigs, and implement a combined mechanism of "100% inspection + sampling inspection" — 100% inspection is conducted for key safety components, and the sampling inspection ratio for general components is not less than 20%. All testing data are recorded and archived in real time.

Achievement of Quality Inspection Effects

Through full-process quality inspection and control, the factory qualification rate of Xinhao drill rigs is stably maintained at over 99.8%, and the non-human-induced fault control rate within 12 months after equipment delivery is ≤ 0.5%, which is far better than the industry average level, providing customers with long-term and reliable use guarantees.

Qualified Factory Delivery

After passing the commissioning and final quality inspection, the quality inspection team issues an official qualification report. The drill rigs are stored and sorted, then packaged and delivered according to the order requirements. Complete technical documents and quality traceability files are provided simultaneously to ensure the standardization and traceability of the delivery process.

Conclusion:

The production process of Xinhao drill rigs is a system that deeply integrates precision engineering, strict standards, and innovative technologies. We are committed to manufacturing not just a machine, but delivering a reliable and efficient production solution to customers.

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