Play Video ! Play Video !
  • Pulleys
    Pulleys
  • Transmission Belts
    Transmission Belts
  • Taper Bushes
    Taper Bushes
  • Couplings
    Couplings
  • Industrial Gears
    Industrial Gears
  • Sprockets & Chains
    Sprockets & Chains
  •  Custom Transmission Components
    Custom Transmission Components
  • OEM Custom Machining
  • OEM Custom Machining
Custom Transmission Components

OEM Custom Machining

OEM Custom Machining is the definitive solution when off-the-shelf components fail to meet the specific technical or spatial requirements of a mechanical system. This service bridges the gap between raw engineering concepts and fully functional machinery by transforming CAD drawings or physical samples into high-precision parts. OEM Custom Machining encompasses a wide array of manufacturing processes, including CNC turning, milling, gear hobbing, and specialized surface treatments. Engineers conduct DFM (Design for Manufacturability) analysis to optimize part geometry for cost and performance. Whether producing a single legacy replacement part or a batch of complex prototypes, OEM Custom Machining guarantees strict adherence to tolerances and material specifications. Protected by strict confidentiality agreements, this service empowers global manufacturers to innovate and maintain their equipment without being constrained by standard catalogs.

Item Specification
Processing method OEM custom manufacturing to drawings / reverse-engineered custom manufacturing from samples
Supported files PDF, CAD (DWG/DXF), STEP, IGS, or physical samples
Processes Casting, forging, CNC turning, milling, gear hobbing, grinding, drilling, dynamic balancing
Machinable materials HT250 gray cast iron, QT450 ductile iron, 45# steel, 40Cr, aluminum alloy, stainless steel, etc.
Machining size range Outside diameter up to 1200mm as standard (extra-large sizes can be evaluated separately)
Machining accuracy Standard dimensional tolerance ±0.05mm; high-precision fit surfaces up to ±0.01mm
Surface treatment Black oxide, phosphating, galvanizing, electrophoresis, powder coating, bluing, etc.
Sampling lead time Standard samples 5-10 working days (depending on process complexity)
Minimum order quantity Flexible small-batch orders; single-piece sampling supported
Key Product Advantages Applications and Scenarios Contact Us

1. Technical support from a veteran engineering team: With a professional after-sales technical team and R&D engineers totaling 20 people, we can perform DFM (design for manufacturability) review of customer drawings at the quotation stage, flagging structural interference, overly tight tolerances, or unsuitable material selection in advance to avoid rework later in production.
2. Closed-loop capability across all processes: From mold making, casting blanks, and CNC precision turning to dynamic balance testing and surface treatment, the entire process is completed on our own equipment. This completely eliminates the quality disputes caused by patched-together outsourcing, and delivery milestones are fully controllable.
3. High precision and strict quality inspection: Equipped with machining centers, CNC lathes, and professional balancing testers. Tolerances of standard parts are stable within ±0.05mm, and every shipped batch comes with a dimensional inspection report and material certificate.
4. Flexible small-batch and sampling policy: Supports "single-piece sampling and small-batch customization." Production scheduling is flexible with no rigid high thresholds, greatly lowering the tooling and trial-and-error costs for overseas customers testing new products.
5. NDA confidentiality and brand OEM: Strict NDA confidentiality agreements can be signed to ensure customer drawings are not leaked; laser engraving of customer brand LOGOs, exclusive custom shipping marks, and neutral export packaging are supported on custom parts.

Equipment repair and old-part replacement: When overseas customers' equipment is aging and original parts are discontinued or extremely expensive, they can send the old part or a surveyed drawing and we supply a cost-effective equivalent custom part.
Non-standard automation equipment R&D: Various special-shaped drive shafts, pulleys with special hole spacing, and special mounting brackets needed in the R&D phase of automated production lines.
Complete-machine OEM contract manufacturing: Custom transmission components produced under contract for machinery makers in agriculture, mining, and packaging, supplied directly for export alongside the complete machine.

Keep In Touch With Us
  • Required fields are marked *.
    We will send you quotes and recent promotions. We value your privacy and will not share your information.

About Rentai
Transmission Equipment

Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

  • 10+

    Industry Experience

  • 100+

    Production staff

  • 2000+Ton

    Annual Production

  • 8000+㎡

    Factory Area

Certificate Of Honor
Provide You With The Latest News