Explore high-durability replacement parts and heavy-duty hoisting systems engineered for the most demanding onshore and offshore exploration fields.
Established on July 15, 2003, and headquartered in the prominent petroleum industrial hub of Baoji City, Shaanxi Province, Baoji Mengtai Petroleum Machinery Co., Ltd. (MTPM) operates alongside BOMCO, sharing a regional ecosystem of manufacturing excellence. As a leading manufacturer of oilfield machinery and components, we represent a premier class of engineering enterprises in China that initiated early global trade and heavy component export programs.
With two decades of dedication, MTPM produces certified heavy machinery and drilling equipment components, bringing long-term reliability and premium support directly to global drilling contractors, oilfield services operators, and international machinery distributors.
Learn More >A comprehensive examination of design standards, metallurgical properties, structural durability, and stress dynamics in modern oil and gas hoisting operations.
Industrial bearing sheaves used in crown blocks and traveling blocks undergo immense cyclic tension and dynamic loading from steel wire ropes. Under API Spec 8C guidelines, MTPM sheaves utilize high-grade structural alloy steel (such as ZG35CrMo or ZG45) to construct sheave rims, webs, and hubs. The wire rope groove is subjected to severe abrasive friction and Hertzian contact stresses.
To combat groove wear, we implement localized induction flame-hardening processes, achieving a minimum surface hardness of HB 320 to 380, with a hardened depth of 2mm to 5mm. This guarantees that the groove path maintains its profile geometry over millions of cycles, mitigating premature rope wear and preventing sheave rim deformation.
Induction hardened to HB 320-380, minimizing rope abrasion and eliminating groove wall thinning under continuous hoisting loads.
Equipped with double-row tapered roller bearings to accommodate combined radial and high axial thrust loads without cage failures.
Integrated labyrinth and triple-lip rubber seal designs to lock in grease while entirely shutting out mud, sand, and ocean saltwater.
Drilling rigs operate globally, demanding that bearing sheaves perform predictably under widely varying climatic extremes. MTPM engineers custom profiles for local environmental threats:
As drilling rigs transition toward automated, unmanned operations, the monitoring of critical mechanical elements is essential. The future roadmap of MTPM’s sheave engineering focuses on Smart Sheave Technologies:
Operating out of our 15,000 square meter self-owned standardized facility in Baoji, equipped with over 80 advanced CNC machines and NDT testing platforms.
A view of the semi-finished goods warehouse
CNC Lathe & Heavy Machining
Production Assembly and Machining Line
MTPM maintains rigorous conformity to the American Petroleum Institute specifications. Our authorization grants us the prestige of placing the official API Monogram on all compliant equipment.
Covers critical mud pump and drawworks components manufactured to strict tolerance standards.
Certifies safety compliance and structural testing of hoisting sheaves, traveling blocks, and hooks.
Authorizes the engineering and validation of downhole equipment for high pressure environments.
Why leading global operators rely on Baoji Mengtai for replacement parts, complete systems, and raw-material procurement stability.
Located directly in Baoji Shaanxi, alongside BOMCO, MTPM resides inside a world-class petroleum machinery cluster. This permits overnight access to advanced heat treatment facilities, forging plants, and specialized laboratories, drastically cutting standard lead times.
From initial design casting verification to CNC precision machining, induction groove hardening, bearing installation, and load-stress testing: every single step is managed in-house under continuous quality supervision.
MTPM products are precision machined to be direct replacements for equipment from major brands like BOMCO, HONGHUA, RG, LANSHI (LSNOV), and DFXK, lowering spare part procurement overheads for existing rigs.
Our long-term commitment to quality, engineering depth, and technical integrity ensures safe operations on critical industrial projects.
We focus on precision manufacturing of mud pumps, bearing sheaves, and hoisting machinery. Our 16 proprietary patents and 3 active API certificates (7K, 8C, 11D1) bolster the durability of our equipment in demanding offshore and deep onshore formations.
Operating a modernized 5,000㎡ machine shop with over 80 high-end lathe, milling, and testing units. Our technical team has been working together for over 15 years, providing stable, experienced manufacturing capability.
Approved Tier-1 vendor to domestic giants CNPC and Sinopec, and a trusted supplier for BOMCO, LS Group, and Honghua. Our components are exported globally to Central Asia, Europe, North America, the Middle East, and Africa.
We work in alignment with major drilling contractors and state oil field companies worldwide to guarantee consistent operation.
Industry answers regarding standard maintenance procedures, API 8C certification, sheave groove profiles, and custom ordering requirements.
MTPM’s comprehensive production portfolio: API-authorized brakes, coupling systems, structural blocks, and high pressure valves.
MTPM RigParts
