Home > Products > Industrial Pipeline Series > Factory Supply 286mm Downhole Motor Are Available Suitable for Oil Drilling Equipment
Factory Supply 286mm Downhole Motor Are Available Suitable for Oil Drilling Equipment
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Product Details
Type | Other, Carbon Steel | Certification | ISO | |
Shape | Round | Technique | Other | |
Surface Treatment | Other, Varnishing | Usage | Pipeline Transport, Boiler Pipe, Hydraul | |
Internal Coating | Cement Mortar Lining; Bitumen Coating; L | External Coating | 3lpe; 2lpe; 2lpp; Fbe; Bitumen; Enamel T | |
Transport Package | with End Caps, in Bundles by Steel Strips | Specification | Customized | |
Origin | China |
Product Description
Factory supply 286mm Downhole motor are available Suitable for oil drilling equipmentDownhole motors are mainly used to drive the rotor in the motor to rotate when the mud output from the mud pump flows through the drilling tools, and the rotor drives the transmission shaft through the universal shaft, which in turn transmits the torque and rotational speed to the drill bit and realizes the rock-breaking drilling of the drill bit.
The high-performance Downhole motors have higher torque and rotational speed output capacity, which can be efficiently drilled under more complicated stratigraphic conditions. Strong stability, good durability, good guidance and so on.
Our relentless pursuit of perfection is evident through our specialized steel pipe straightening process, which significantly reduces ovality and straightness deviations of roller rings by a remarkable 50% compared to the MT821 standard. The idler's simulated frictional resistance coefficient is impressively lowered from 0.025 to 0.023, while radial runout is optimized from 1.0 mm to an astounding 0.35 mm. Post-straightening straightness is enhanced from 1.0 mm to an exceptional 0.20 mm. With an axial load exceeding 15 KN, as per the MT821 standard, our idlers achieve an elevated precision grade with a service life surpassing an extraordinary 45,000 hours.
Our production line stands as a testament to technological excellence, achieving full automation across every stage, including straightening, pipe cutting, boring, stamping, welding, and assembly. This seamless process epitomizes the zenith of efficiency and innovation.
Our idler shaft processing leverages cutting-edge fully automated production lines to execute precise operations such as servo-fixed-length cutting, end face turning, chamfering, snap ring groove cutting, center hole drilling, and milling flat grooves on the idler shaft. The distance between two milled grooves can be as minimal as 190mm,while adeptly handling workpieces up to an impressive maximum length of 2200mm.
1. Our idlers are ingeniously designed for easy replacement, featuring robust welding techniques that ensure the idler shell remains unscathed throughout its remarkable service life, extending at least 45,000 hours.
2. Incorporating specialized bearings and stamped bearing housings with dual-layer seals, our idlers promise exemplary sealing, reduced rotational resistance, and enhanced longevity. We employ top-of-the-line bearings from esteemed brands like NSK to deliver unmatched performance.
3. The external dustproof capacities of our idlers rigorously adhere to the MT821 - 1999 regulations, ensuring exceptional waterproof performance in full compliance with these stringent standards.
4. Every steel material undergoes rigorous pre-treatment to achieve the St2-1/2 level. Components involving welded structures are manufactured in strict conformance with national welding standards, ensuring structural alignment with the latest national criteria.
5. The rotational resistance coefficient of the upper idlers is precisely 0.022 or below, while the lower idlers showcase an even more remarkable coefficient, not exceeding 0.02, highlighting our dedication to superior engineering and performance.
Company Profile

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
Contact Us
- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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