Customized 3.5" Outer Spiral Mud Motor for Efficient HDD Coal Mining

Customized 3.5" Outer Spiral Mud Motor for Efficient HDD Coal Mining. Strong R&D Innovation: Partnering with Tongji & East China University of Science and Technology. 15+ invention patents, 30+ utility models, provincial-level Technology Center certified. Comprehensive Solutions: Oilfield (directional/horizontal motors), Coal Mining (ATEX-compliant), Coiled Tubing & HDD (compact tools). Custom designs + full lifecycle support. Swift Delivery: Standard orders ship within a week, bulk orders within two weeks, guaranteed within 15 days. Certified Quality: Certified with API Q1, 7K, UDEM, CE, ISO 9001/14001/45001. State-of-the-art production including CNC milling, supersonic spraying, and API-standard testing. Global Competitiveness: 15-20% cost savings vs. international brands,with 30% faster delivery. With 60,000 square meters of manufacturing space, we support scalable production. Proven Track Record: Clients include Sinopec, CNPC, and China Coal. Operations in 18 countries | $20M+ annual sales | 35% YoY export growth.