What Equipment Is Needed To Process Non-standard Parts? Selection Guide For Five-Axis CNC Machine Tools

What equipment is needed to process non-standard parts? Selection Guide for Five-Axis CNC Machine Tools

The 30% difference in quotation is due to equipment

There is a 30% difference in the quotations given by two factories engaged in the production of non-standard parts. It is often difficult for purchasing personnel to clearly explain the reason for the high price. The root of the problem is that purchasing personnel only focus on price and delivery date, but ignore the equipment list. In a precision parts bidding event held in Shenzhen in 2025, Factory A quoted a price of 120,000 yuan. What equipment is needed to process non-standard parts? In the selection guide for five-axis CNC machine tools, Factory B quoted a price of 180,000 yuan. After comparing equipment, the purchasing staff suddenly realized that it has accumulated non-standard parts processing technology . Factory B has a five-axis machining center and slow wire-traveling equipment, and the accuracy levels are completely different.

The equipment list is like a factory's ID card, which directly exposes the work it can do. Three-axis milling machines can only process simple parts, and only in five-axis linkage can they meet the challenges of complex curved surfaces. If equipment data is missing, price comparison is as blind as a blind man touching an elephant.

Five-axis is a watershed in technical level

Judging from the data of the 2026 Dongguan Industrial Exhibition, only 86 of the 2,000 non-standard parts factories participating in the exhibition have five-axis equipment, and the proportion of precision factories nationwide that truly have five-axis linkage processing capabilities is less than 5%. Five-axis machines are divided into swing-head type and double-swing table type. The swing-head type is suitable for large parts, while the double-swing table type is good at processing small precision parts.

The key measurement criteria for five-axis are positioning accuracy and repeatability. The positioning accuracy of high-end five-axis is plus or minus 0.003 mm, and the repeatability accuracy is plus or minus 0.001 mm. The rotation speed of the spindle is thousands of revolutions. When processing aluminum alloy, its surface roughness can be controlled within Ra 0.8. At the brand level, FANUC system is the most stable, DMG and Mazak The machine tools are of first-class quality, and the cost-effectiveness of Doosan and Taiqun is very outstanding.

Turning and milling composite molding saves time

Among turning equipment, a simple lathe can only handle rotary parts. There is a turning and milling machining center with a power tool head. In 2025, a factory in Suzhou used it to compress the processing time of aviation joint parts from 6 hours to 2.5 hours. The centering machine is suitable for slender shaft parts, as well as precision shaft parts with a diameter of less than 3 mm. The processing efficiency of the centering machine is 40% higher than that of ordinary lathes.

When performing precision finishing operations, grinding equipment plays a key role. For tolerance requirements above IT6 level, without grinding, the expected standards will not be met at all. At the mold exhibition held in Shanghai in 2026, there was a precision surface grinder that could achieve a flatness of plus or minus 0.002 mm. Such a flatness effect could be successfully achieved without milling being able to replace it.

Special processing solves hard material problems

The accuracy of slow wire cutting can reach plus or minus 0.001 mm, which is indispensable when processing hardened steel special-shaped cavities. In 2025, there is a mold factory in Chongqing that uses slow wire cutting to process mold inserts with a hardness of HRC60. The first pass rate of the mold insert processing reached 98%. Without slow wire cutting, this kind of parts would have to be outsourced.

The use of laser blanking and 3D printing of thin-plate parts can shorten the proofing cycle. Thin-plate parts can be cut quickly with laser cutting, while 3D printing can be used for complex inner cavities in one night. In 2026, a R&D center in Hangzhou significantly shortened the proofing of 3D printed non-standard parts from the traditionally long 7 days to just 24 hours.

Testing equipment determines whether a promise is true or false

The accumulation of non-standard parts processing technology of three-dimensional coordinate measuring instruments is known as the trump card that promises accuracy. Without it, all dimensional data would be just verbal words without proof. In 2025, there was a factory in Wuhan, and the customer requested that the critical dimensional tolerance be set to plus or minus 0.005 mm. The factory used Hexagon three-dimensional coordinates to conduct inspections one by one, and the final shipment qualification rate reached 100%.

The degree of uncertainty of accurate measurement is a key parameter. The uncertainty of high-precision three-coordinate measurement is within the range of plus or minus 0.001 mm. Whether the guide rails in the workshop are wiped bright enough, the accumulation of non-standard parts processing technology , and whether the records of equipment maintenance are complete. Compared with PPT, these subtle plots can clearly show the level of management. Punctuation marks should be in Chinese, and there must be punctuation marks at the end of sentences.

Engineer opens his mouth to judge soft skills

Equipment is just the bottom line. For the same five-axis machine tool, some people can achieve an accuracy of plus or minus 0.01 mm, while others can stabilize at plus or minus 0.003 mm. The gap exists in CAM programming, fixture design, and cutting parameters. In 2026, there was a factory in Beijing. After receiving the drawings, it pointed out the hole interference problem within half an hour, gave DFM suggestions, and then directly won the order.

Whether heat treatment and surface treatment is in-house or outsourced can also reflect the accumulation of technology. An in-house factory with a vacuum heat treatment furnace has a higher deformation control capability than an outsourced factory. Check the equipment list and listen to the engineer analyze the quotation, so the price will naturally have weight.

After reading this article, do you dare to ask for the equipment list of the non-standard parts factory you are working with at this time and take a look? Welcome to the comment area to share your own purchasing experience.