High Precision CNC Machining

Sanluo Precision is a professional manufacturer and supplier of high precision CNC machining in China, with 18 years of technical accumulation in the field of micron-level precision manufacturing, providing customers with high-quality high precision machining services. We provide professional customized high precision machining services for aerospace, precision instruments, medical devices, semiconductor equipment and other industries, and support the customization of complex and difficult parts. We can realize mass production of complex parts with IT1-IT6 precision grade, fully meeting the strict requirements of high-end manufacturing industry for high precision CNC machining.

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Product Description

High Precision Machining Capability

Sanluo Precision's high precision CNC machining features extremely high accuracy: Dimensional accuracy (diameter tolerance ±0.001-0.005mm, length tolerance ±0.003-0.008mm, hole distance tolerance ±0.001mm, fit accuracy H2/H3 grade, reaching IT2/IT3 grade); geometric accuracy (roundness 0.001-0.003mm, cylindricity 0.001-0.005mm, concentricity 0.002-0.005mm, flatness 0.0005-0.008mm, perpendicularity 0.002-0.01mm, parallelism 0.002-0.01mm, runout 0.002-0.015mm); surface quality (surface roughness Ra0.1-0.8μm, precision machining Ra0.2μm, ultra-precision machining Ra0.05-0.1μm close to optical grade); repeatability (Dimensional consistency of mass production ±0.002mm, CPK≥2.0, sigma capability 6σ, process capability index PPK≥1.67).

Workstation Accuracy

dimensional accuracy	L（X）	W（Y）	H（Z）	SH	SW
unit:±/mm	0.001	0.0005	0.0001	0.002	0.002
Geometric accuracy	flatness	parallelism	perpendicularity	roughness	symmetry
unit:±/mm	0.0003	0.001	0.001	Ra0.05	0.001
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

High Precision Process Control

As a professional manufacturer of high precision CNC machining, Sanluo Precision implements strict process control: process design optimizes the process route with finite element analysis FEA; CAM programming uses software such as UG NX and PowerMill with tool path accuracy 0.0005mm; cutting parameters (finish cutting depth 0.01-0.05mm, feed rate 0.005-0.03mm/r, speed 3000-10000rpm); 100% CMM inspection for first article, real-time SPC monitoring in process, CPK≥2.0; precise management of tool life, tool accuracy ±0.0005mm. Application fields: engine spindle nickel-based superalloy (roundness 0.002mm, dynamic balance G0.4 grade), precision instruments (optical spindle runout 0.001mm, surface Ra0.05μm), medical devices (titanium alloy TC4 accuracy ±0.002mm, fatigue life >10 million times), semiconductor equipment (wafer transfer robot flatness 0.002mm). We have provided customized high precision CNC machining services to Foxconn, Zeiss, Medtronic, Huawei and other enterprises, with an annual output of 800,000 pieces and a qualification rate of 99.95%.

Equipment Technical Parameters

Parameter Category	Parameter Details
Equipment Model	UVM-450D(H)
Brand / Origin	TOSHIBA (Japan)
Core Positioning	Nano-level ultra-precision machining
Axis Number	/
Spindle System	Equipped with aerostatic spindle to achieve ultra-high rotation accuracy
Feed and Measurement	Feed structure accuracy up to 0.01µm, equipped with linear grating scale with resolution up to 0.002µm
Drive Technology	Adopting high-precision linear guide rail and linear motor drive control technology
Machining Range	X/Y/Z axis stroke: 450 mm / 450 mm / 250 mm; Worktable area: 500×500 mm
CNC System	FANUC Series 30i-Model B
Typical Application	Optical accessories, semiconductor related parts, light guide plate molds for small and medium LCD displays and other high precision CNC machining

Parameter Category	Parameter Details
Equipment Model	MMC 600-900
Core Positioning	Ultra-high precision vertical machining, optical grade surface quality
Axis Number	3-axis (can be expanded to 4-axis by adding Y-axis, A-axis or C-axis)
Bed Technology	Granite base with passive vibration isolation system
Key Accuracy	Flatness 0.1μm (within 100mm diameter), surface roughness Ra 2 nm
Core Advantage	Achieves optical grade surface quality on a variety of materials by using diamond tools
Typical Application	high precision CNC machining of optical and mechanical precision components