Buyer intent
This page targets buyers searching for custom machined parts, drawing-based spare parts, sample-based production, and small-batch replacement production for heavy equipment.
Application
Drawing-based custom production for construction and mining equipment parts.
Many replacement parts cannot be sourced from a catalog name. RFQ review starts with drawings, samples, dimensions, material, tolerance, process, quantity, and approval steps.
Common sourcing problems
- The buyer has a drawing or sample but no standard part number
- Critical tolerances, heat treatment, surface finish, and fit surfaces need review
- One inquiry may combine machining, fabrication, rubber, PU, and wear parts
- Sample approval and batch production need different lead-time expectations
Related product families
RFQ evidence to collect
- 2D drawing, 3D file, sketch, sample photo, or dimension sheet
- Material grade, substitute material allowance, and surface treatment notes
- Critical tolerance, roughness, hardness, thread, groove, and hole details
- Application position, load condition, wear condition, or temperature notes
- Trial quantity, batch quantity, sample approval need, and destination port
Review notes
Incomplete drawings should be clarified before supplier quotation to avoid wrong process assumptions.
Machining, fabrication, rubber molding, casting, and PU parts should be separated by production path.
For urgent demand, clarify whether sample approval is required before batch production.
FAQ
Buyer questions for this application.
Can a sample replace a formal drawing?
A sample can start the review, but measurements, material, tolerance, and application details are still needed for production.
Can mixed custom parts be reviewed in one RFQ?
Yes. Separate each item by process type, drawing status, material, quantity, and destination so supplier review can be accurate.
What information affects custom production price most?
Material, tolerance, process route, heat treatment, surface finish, batch quantity, sample approval, packing, and inspection scope matter most.
RFQ desk
Turn the application need into a checked RFQ.
Send machine model, part evidence, material notes, quantity, and destination details before supplier quotation.