There is no uniform standard for the cost of precision machining. Its price is determined by a combination of factors, including materials, process complexity, production volume, and equipment type. Typically, the ratio of machining costs to raw material costs fluctuates between 1:1 and 10:1.
Core Cost Components
Precision machining quotations mainly include the following components:
Material Costs: Account for 30%-60% of the total cost. Prices vary greatly depending on the material (e.g., aluminum alloy approximately 20-30 RMB/kg, titanium alloy up to 300-500 RMB/kg).
Machining Fees: Priced per hour or per process, influenced by factors such as equipment, labor, programming, and fixtures.
Additional Costs: Includes packaging and transportation, management fees, taxes, amortization of tooling and fixtures, and a reasonable profit.
Rough Estimation Method (Based on Part Size and Difficulty)
Table: Part Type | Difficulty Level | Processing Fee : Raw Material Cost
Large Parts (Large Volume, Heavy Weight) | General | 1:1 | Higher | 1.2~1.5:1
Small to Medium Parts | General | 2~3:1 | Higher | 5~10:1
Note: This ratio is inversely proportional to the purchase quantity; the larger the batch, the lower the unit cost.
Reference Prices for Common Processes
Lathe Machining: 20-40 RMB/hour
Milling/Grinding Machining: 25-45 RMB/hour
Drilling Machining: 15-35 RMB/hour
CNC Machining: 2-4 times that of ordinary equipment
Wire EDM: 3-4 RMB/900 square millimeters
EDM: 10-40 RMB/hour, usually 50 RMB/piece
Engraving: 50-500 RMB/piece (mostly priced per piece) Actual prices may vary depending on the region, factory equipment level, worker skill level, and order volume.
