CNC MACHINING AT JINWANG
CNC machining capabilities
for custom components.
Compare CNC turning, milling, external cylindrical grinding and gear hobbing at our Dongguan workshop. Use the process guide below to match your component features with the machining route and prepare the drawings, materials and inspection details needed for a quotation.

Compare machining processes for your part.
A component can combine turned diameters, milled interfaces, specified ground surfaces and gear features. We review the processes together around the functional requirements of your part.
| Process | Component features | Details to identify on your drawing | Workshop equipment |
|---|---|---|---|
| CNC turning | Round diameters, shoulders, grooves and threads on shafts or sleeves. | Identify critical diameters, fit callouts, axial shoulders, threads and reference datums. |
|
| CNC milling | Flat faces, pockets, slots, hole patterns and mounting interfaces. | Mark reference datums, hole positions, pocket geometry and the faces that control assembly. |
|
| Cylindrical grinding | External cylindrical surfaces and specified mating diameters. | Specify the surfaces to be ground, dimensional requirements, datums, surface finish and material condition. |
|
| Gear hobbing | External gear teeth and geared shaft features for transmission components. | Provide tooth geometry, mating references, material condition and the inspection requirements for the gear features. |
|
BEFORE WE QUOTE
What to include in a machining RFQ.
Clear functional requirements help us discuss the machining route and prepare a quotation. Include the following information when it applies to your component.
Geometry & fits
Identify mating surfaces, critical dimensions, tolerances and datums. Mark the features that control fit and assembly.
Material & condition
State the material grade and required condition, including heat treatment or surface treatment where specified.
Surface requirements
Call out surface roughness and finishing requirements on the relevant surfaces.
Inspection & records
Tell us which inspection records, reports or other acceptance documents you need.
Quantity & delivery
Include the quantity, destination and requested delivery date so these can be reviewed with the technical requirements.
Drawings & CAD files
Send a dimensioned drawing and, where available, a CAD model. The inquiry form accepts PDF, STEP, DWG, DXF, IGES, JPG and PNG files.
Start with your drawing.
Share your geometry, material, quantity and inspection needs.
