Calculation Methods for CNC Machining Quotation

Detailed Calculation Method

1) First of all, you can ask the other party to provide preliminary process arrangements for key or complex parts, detailing each process and the time consumption of each process.

2) The processing cost can be calculated according to the hourly cost of the equipment required for each process. You can also ask the supplier for the specific equipment cost, cnc quoting.

Ordinary YIJIN Hardware is between 60~80 per hour RMB(tax included). Ordinary equipment such as milling machines and general vehicles is generally 30RMB.

3) In proportion to the packaging and transportation, management costs of cnc machining parts, tooling tools, and profit is the price.

Of course, the price will have a lot to do with the annual purchase volume and the difficulty of the cnc machining parts to a certain extent.

The cnc machining quotation difference between single piece and batch is very easy to understand.

Rough Estimation Method

1) For large items, the volume is larger and the weight is heavier.

General difficulty: The ratio of the cnc machining service cost to the cost of the raw materials of the entire part is about 1:1, and this ratio is inversely proportional to the purchase amount;

More difficult: The ratio of the online cnc machining service cost to the cost of the raw materials of the entire part is about 1.2~1.5:1, this ratio is inversely proportional to the purchase amount;

2) For small and medium items

General difficulty: The ratio of online cnc machining cost to the cost of raw materials for the entire cnc machining part is about 2~3:1, and this ratio is inversely proportional to the purchase amount;

More difficult: The ratio of the online cnc machining cost to the cost of the raw materials of the entire part is about 5-10:1, and this ratio is inversely proportional to the purchase amount;

Because CNC precision machining has great process flexibility, that is, a cnc machining part can have many kinds of process arrangements, so the cost is of course different.

However, sometimes the CNC machining parts supplier will tell you a complicated process to increase the price when CNC quoting, and other simple processes will be used in actual production, so the buyer himself.

The reading of the drawings and the knowledge of cnc machining parts processing determines your grasp of the online cnc machining cost, so the purchase of precision machining parts requires a more comprehensive knowledge of precision parts machining.

The Composition of Machining Costs is Generally Based on Working Hours

If you want to process a workpiece, first it is the material cost of the other party; then some travel expenses to purchase the workpiece (generally not);

The most important thing is the processing man-hours required for the workpiece you want to process, generally 10-20 yuan/hour for lathes, and about 10-15/hour for fitters; the rest are not listed as examples;

If there are no ready-made tools (such as knives, or molds), you need to bear cnc machining parts or all of the online cnc machining service cost of the purchase; the final total is the processing cost you have to pay!

Material costs, machine depreciation, labor costs, management fees, taxes, etc. are basically required. Or material costs, processing fees, and taxes, as well as business costs, transportation costs, and budgeting. You need a thorough understanding of the market. If you don’t do it for a few years, you won’t be able to figure it out at all, even my teacher. I often sigh with emotion! Not paying attention at all!

Process issues should include material costs, processing fees (which processing prices are different), equipment depreciation fees, worker wages, management fees, taxes, etc. The main thing is to first determine the online cnc machining process, that is, the CNC machining parts processing method, and then calculate the man-hours based on the cnc machining quotation process. The man-hours determine the basic processing cost of a single cnc machining part, plus other costs. Craftsmanship is a very complicated science. A cnc machining part adopts different crafts, and the price is different. The basic price of processing hours for each type of work is actually not fixed. It will be based on the difficulty of the workpiece, the size of the equipment, and the performance. Of course, the key depends on your quantity, but generally speaking, it has a basic price, which fluctuates between the basic prices.

1. The basic price of the cnc turning: 20-40. The specific ones are determined according to the actual situation. Like small parts, the simple working hours are less than 20 yuan; sometimes even only 10 yuan, such as some large pulleys, the processing margin is large, and the boss only earns the money for cast iron powder is enough; sometimes if the workpiece is large, it can be higher if it is generally impossible to process on the market, two or three times, and others can’t help it.

2. Basic price of grinding: 25-45

3. Basic price for milling: 25-45

4. Basic price of drill: 15-35

5. Basic price for planning: 15-35

6. The basic price of wire cutting: 3-4/900 square millimeters

7. The basic price of EDM: is 10-40, a single piece is generally 50/piece (less than 1 hour)

8. CNC basic price: it is 2-4 times more expensive than ordinary ones

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