Use this path when the part is not a standard catalog item.
The first task is not instant price guessing. The first task is matching the drawing, sample, material, tolerance, quantity, and production route.
OEM / drawing / sample custom production
OEM custom production from drawings, samples, and technical specs.
SinoField Machinery reviews custom RFQs for construction machinery bearing accessories, mining equipment spares, machined sleeves, shafts, housings, rubber parts, wear parts, and assemblies when buyers can provide drawings, samples, measurements, material notes, quantity, and destination details.
Made from drawings
2D drawings, 3D files, sketches, tolerance notes, material grades, surface treatment, and heat treatment can start the review.
Sample-based review
When no drawing exists, sample photos, worn part dimensions, fit surfaces, machine position, and application notes help define the RFQ.
OEM / private-label support
Brand-neutral packing, marking, sample approval, batch quantity, and repeat-order requirements can be reviewed before quote.
RFQ workflow
A custom part RFQ needs production evidence before a credible quote.
Send technical evidence
Drawing, sample photo, part number, machine model, material, tolerance, and working condition.
Separate the production path
Machining, fabrication, rubber molding, PU, casting, wear parts, and assemblies are reviewed as different routes.
Confirm sample and batch needs
Clarify whether the buyer needs sample approval, trial order, batch production, repeat demand, or private-label packing.
Prepare manual quotation
Supplier review covers feasibility, MOQ, lead time, packing, inspection points, trade term, and destination.
Parts suitable for custom production review
- Bearing housings, sleeves, seats, spacer rings, flanges, shafts, and bushings
- Mining equipment spare parts, fabricated components, crusher and screen-related parts
- Custom rubber pads, mounts, gaskets, bonded parts, PU parts, and wear-resistant components
- Replacement parts made from drawings, samples, old invoices, or existing supplier references
Evidence to include with the RFQ
- 2D drawing, 3D file, sketch, sample photo, or dimension sheet
- Material grade, hardness, heat treatment, coating, roughness, and tolerance requirement
- Application position, load condition, working temperature, wear condition, or fluid contact
- Trial quantity, batch quantity, annual demand, sample approval need, and delivery deadline
- Packing, label, neutral/OEM marking, destination port, trade term, and inspection requirement
What must be reviewed manually
- Product names alone are not enough for custom production pricing.
- Incomplete drawings should be clarified before a supplier quote is treated as reliable.
- OEM/private-label details should be discussed before packing, marking, and repeat-batch planning.
Related high-intent pages
Custom RFQ
Send the drawing, sample, material, quantity, and OEM packing notes.
A supplier-ready RFQ can include partial evidence, but custom production pricing, samples, packing, and lead time are confirmed only after manual review.