Precision Machining Part

Sanluo Precision is a professional manufacturer and supplier of precision machining part in China, with the machining capability for various types from simple shaft sleeves to complex special-shaped parts. The precision grade of accurate machining ranges from IT2 to IT7, with dimensional tolerance of ±0.001mm～±0.01mm, geometric tolerance of ±0.003mm～±0.008mm, and surface roughness Ra of 0.1～1.6μm, which can meet the high-precision part requirements of machinery and equipment, electronic products, semiconductor components, instruments and meters and other industries. We provide customized precision machining part services to enterprises worldwide and support the customization of complex and difficult parts.

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Product Description

Scope of Machining Types

The precision machining part types in Sanluo Precision's processing plant include:

① Shaft parts (optical axis, stepped shaft, spline shaft, eccentric shaft, crankshaft) with length 5mm～1500mm and diameter Φ1mm～Φ300mm;

② Disc and sleeve parts (flange, gear, pulley, shaft sleeve, bushing) with outer diameter Φ10mm～Φ500mm;

③ Box parts (shell, seat, bracket, connector) with maximum machining size 1200mm×800mm×600mm;

④ Plate parts (panel, base plate, partition plate, fixing plate) with thickness 0.5mm～100mm;

⑤ Special-shaped parts (support arm, rocker, fork, connecting rod) with complex curved surfaces and thin-walled structures.

Workstation Accuracy

Dimensional accuracy	L（X）	W（Y）	H（Z）	SH	SW
unit:±/mm	0.002	0.002	0.001	0.002	0.002
Geometric accuracy	flatness	parallelism	perpendicularity	roughness	symmetry
unit:±/mm	0.002	0.002	0.002	Ra0.1	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

Configured testing instruments and measuring tools include: CMM (Coordinate Measuring Machine), image measuring instrument, projector, laser diameter gauge, laser interferometer, roughness meter, roundness meter, tool microscope, stereomicroscope, micrometer, pin gauge, micrometer dial indicator, ultra-precision micrometer, electronic height gauge, caliper, gauge block, hardness tester, thread gauge.

Quality Assurance

A strict three-inspection system is implemented for precision machining part, namely self-inspection by operators, patrol inspection by full-time inspectors, and final inspection by the quality department. Equipped with CMM, projector, micrometer, vernier caliper, height gauge, roughness meter, hardness tester and other testing equipment, the CMK of key dimensions is ≥1.67. Quality tools such as APQP (Advanced Product Quality Planning), FMEA (Failure Mode and Effects Analysis), MSA (Measurement System Analysis), SPC (Statistical Process Control), and PPAP (Production Part Approval Process) are adopted to ensure the stability of part quality. Full-process quality tracking from first article identification → small-batch trial production → mass production. Sanluo Precision has provided customized precision machining services to customers in automation equipment, robotics, 3C electronics, semiconductor, medical, optical and other industries, with a customer satisfaction rate of more than 95%.

Equipment Technical Parameters

Parameter Category	Parameter Details
Equipment Model	MILL P 500 VHP (Very High Precision)
Core Positioning	Micro machining and mirror-level surface finishing
Spindle System	Equipped with Step-Tec 42,000 rpm spindle, HSK-E40 high-rigidity interface
Structural Features	Symmetric high thermal stability structure and polymer concrete bed, effectively suppressing thermal drift and structural deformation
Key Accuracy	Machining stability and repeatability accuracy ±2µm
CNC System	Can be equipped with Heidenhain TNC 640 or Siemens Sinumerik system
Core Advantage	Achieves excellent surface quality under high-speed low-vibration cutting, with demonstration parts reaching mirror effect
Typical Application	Medical, semiconductor, optical precision machining part, etc.

Parameter Category	Parameter Details
Equipment Model	HSM700
Brand	Mikron (Switzerland)
Core Positioning	High-speed machining center, providing solutions for small precision components of new energy vehicles
Axis Number	/
Motion Performance	Rapid traverse speed of 3 motion axes 40m/min
Bed Structure	Polymer granite bed for thermal stability and vibration reduction
CNC System	Equipped with Heidenhain iTNC530 system to ensure machining consistency
Typical Application	Sensor housing, motor connector and other precision machining part