What âcheapâ should mean in a CNC quote
When buyers search for cheap CNC machining in China, the useful question is not simply which supplier lists the lowest unit price. It is whether each quote covers the same part, material, quantity, tolerances, finishing and delivery assumptions. A low number can change once missing operations or inspection requirements are added.
Jucheng provides CNC machining for customer parts; it does not sell CNC machines or machining equipment. A project starts with a drawing or 3D model review so the requested manufacturing scope can be understood before a quote is prepared.
Make quotes comparable before choosing
1. Send the same revision and quantity
Provide the same drawing revision, model, material grade and order quantity to every supplier. State whether the request is for prototypes, a small batch or repeat production. If the design is still changing, mark the revision clearly so an outdated file is not priced.
2. Identify what the price includes
Ask whether the quoted amount includes raw material, machining, deburring, specified surface treatment, inspection, packaging and freight. Separate one-time programming or setup charges from the per-part price. If a finish is subcontracted, confirm that it is included and identify any masking or appearance requirements.
3. Define critical requirements on the drawing
Mark only the dimensions and features that need special attention. Specify datum references, fits, threads, mating surfaces and surface finish where they affect function. Tighter tolerances or additional inspection can change machining time and cost; do not rely on an informal note if a dimension is critical.
4. Compare the total landed cost
Include packaging, shipping method, destination and any applicable import charges in the comparison. Delivery estimates depend on the confirmed scope and logistics, so ask for the basis of the estimate rather than assuming that machining time equals arrival time.
Common reasons quotes differ
- Different material assumptions: Similar-looking grades can have different purchase cost and machining behavior.
- Different tolerance coverage: A broad tolerance on one quote may not match the drawingâs critical dimensions.
- Missing finishing steps: Anodizing, plating, coating or other finishing may be priced separately.
- Different batch quantities: Setup cost is spread across the order, so compare like-for-like quantities.
- Different inspection or shipping scope: Reports, packaging and freight can change the final amount.
For process-specific options, see our servicios de fresado CNC y Servicios de torneado CNC. If the design is ready, the página de cotización de mecanizado CNC personalizado explains what to include with an inquiry.
A practical RFQ checklist
- Current 2D drawing and, when available, a matching 3D model
- Material grade, quantity and any approved alternatives
- Critical dimensions, fits, threads and inspection expectations
- Surface finish, coating, color or masking requirements
- Packaging, destination and requested delivery window
With these details, a supplier can respond against a defined scope. Review the quotation line by line and resolve exclusions before placing an order. The goal is a comparable, buildable quoteânot an unsupported promise of the lowest price.
