Precision Turning

Sanluo Precision is a professional manufacturer and supplier of precision shaft parts in China. With precision turning as its core business, it holds a leading position in China. Our processing plant uses advanced equipment such as high-precision CNC lathes and multi-functional turning-milling centers to provide customers with professional accurate machining services, achieving ultra-high processing accuracy with a diameter tolerance of ±0.002mm, roundness of 0.001mm, and surface roughness of Ra0.2μm. We focus on the high-end manufacturing field and provide customized accurate machining services for global customers, supporting the customization of complex and difficult parts.

Send Inquiry

Product Description

The configured testing instruments and measuring tools include: CMM (three-coordinate measuring machine), image analyzer, projector, laser diameter gauge, laser interferometer, roughness gauge, roundness gauge, tool microscope, stereomicroscope, micrometer, thread gauge, vernier caliper, micrometer scale, ten-thousandth micrometer, electronic height gauge, caliper, gauge blocks, hardness tester, thread gauge.

Dimensional accuracy	OD	ID	DP	SH	DA
unit:±/mm	0.002	0.002	0.002	0.005	0.0001
Geometric accuracy	roundness	coaxiality	cylindricity	concentricity	circular runout
unit:±/mm	0.002	0.002	0.002	0.002	0.002
production capacity	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs
production cycle	3-20 days	3-20 days	3-20 days	3-20 days	3-20 days

Precision Control and Quality Assurance

As a professional precision turning manufacturer, all our processing steps are carried out in a constant temperature workshop (20±1℃, humidity 50±5%RH), effectively eliminating the influence of thermal deformation. The Sanluo Precision factory is equipped with advanced inspection equipment such as a three-coordinate measuring machine (precision 0.001mm), profile gauge, roughness gauge, and roundness gauge, and implements a quality control system of first-piece inspection, process sampling inspection, and 100% final inspection. Each accurate machining product comes with a size inspection report, material certificate, surface roughness report, and a complete quality traceability file, fully complying with international quality management system standards such as ISO9001/AS9100/ISO13485.

Application fields and service cases

The customized precision turning service provided by Sanluo Precision has been successfully applied in several high-end fields, including engine shafts (titanium alloy TC4, diameter Φ50-150mm, length 300-800mm, coaxiality ≤ 0.005mm), medical surgical instrument rods (316L stainless steel, diameter Φ3-12mm, surface roughness Ra 0.2μm), optical instrument guide shafts (aluminum alloy 7075, straightness ≤ 0.01mm/1000mm), precision mold guide pins (SKD11 hardened HRC58-62, cylindricality ≤ 0.002mm), and semiconductor equipment precision shafts (ceramic alumina, with extremely high surface integrity requirements). The annual production capacity reaches 2 million pieces, which can not only meet the customized accurate machining requirements for small batches and multiple varieties, but also meet the manufacturing requirements for large quantities of standard parts.

Technical parameters of the precision turning equipment:

Parameter Categories	Parameter Details
Equipment Model	SwissNano 7
Core Positioning	Meet the processing requirements of small workpieces with extremely high precision
Number of Axes and Structure	6-axis motion structure, with the rear axis installed on three linear axes, and it is extremely simple to use
Processing Capacity	Maximum processing diameter: 7 mm (there are also 4 mm and 10 mm versions available)
Tool System	Can accommodate up to 18 tools, of which 5 are power tools
Special Processes	Can perform high-value-added processing, such as broaching, multi-edge turning, thread milling, and internal and external whirlwind milling
Structural Features	The symmetrical cast iron structure gives the machine tool excellent rigidity; it occupies the smallest space among similar products on the market
Typical Applications	Precision turning of medical devices and implant parts, watch parts, and electronic parts

Parameter Categories	Parameter Details
Device Model	Tsugami S205A Precision Machine (with optional high-frequency milling)
Core Positioning	Specializes in precision machining of small shaft parts such as stainless steel, titanium alloy bone screws, dental pins, etc. for the medical industry
High-frequency Milling Accessories	Optional installation of the Japanese NAKANISHI BM-320F high-frequency milling machine with a maximum rotational speed of 80,000 rpm and a runout accuracy of 1μm
High-frequency Milling Dimensions	Outer diameter 20mm, length 87mm, can be directly installed in the tool holder hole of Tsugami S205A for use
Processing Function	Used for high-precision milling of "rose" (such as internal hexagon, TORX®) on the end face of titanium alloy bone screws, requiring no burrs
Core Advantages	The Tsugami S205A machine itself is suitable for continuous processing of slender shaft parts; with the addition of the high-frequency milling machine, all processes can be completed on the same machine to ensure consistency in accuracy
Typical Applications	Precision turning of titanium alloy bone screws, bone screws, and dental pins