CNC Cutting

As a professional manufacturer specializing in CNC precision machining and CNC cutting, Sanluo Precision is dedicated to providing high-quality custom parts procurement solutions for global clients. With an experienced technical team, a well-established production system, and strict quality control procedures, we are capable of flexibly handling orders ranging from prototype development to mass production. Whether for complex structural components or high-precision thin-walled parts, Sanluo Precision offers stable machining capabilities and reliable delivery service, making us a trusted long-term supplier and partner for your business.

Our CNC Cutting Capabilities

CNC Cutting is one of our core precision manufacturing services. As a professional CNC cutting manufacturer and supplier in China, we provide comprehensive numerical control cutting solutions including laser cutting, wire EDM, plasma cutting, and water‑guided laser technology for global clients.

Our production equipment includes CNC machines, numerical control lathes, numerical control grinders, laser cutting systems, wire cutting, electrical discharge machining, and over 130 units of various professional production equipment.

Laser Cutting

Our fiber laser cutting systems feature power ranging from 1000W to 12000W, capable of cutting carbon steel up to 30mm, stainless steel up to 20mm, and aluminum alloy up to 15mm. Cutting accuracy reaches ±0.05mm with kerf widths of 0.1--0.3mm and cutting surface perpendicularity ≤0.3mm.

• Automatic edge finding and auto‑focus systems that adapt to variations in sheet thickness
• High‑pressure assist gases including oxygen, nitrogen, and air for optimal cutting quality
• Cutting speeds of 15--20m/min for 3mm carbon steel and 10--15m/min for 2mm stainless steel
• Smooth cross‑sections, minimal heat‑affected zones, and little material deformation --- often eliminating the need for secondary processing

Wire EDM Cutting

We operate ZKH550 5‑axis CNC wire EDM machines specifically designed for complex structures like orthopedic implants. Specifications include:

Parameter	Specification
Machining Precision	±0.003 mm
Surface Finish	Ra ≤ 0.8 μm (after multiple cuts)
Max Processing Efficiency	≥ 300 mm²/H
Effective Travel	550 mm × 450 mm
Taper Capability	±6°
Control System	Windows 7+ with direct DXF file import and automatic ISO code generation

Core advantage: No expensive molds required, rapid response to design changes, excels at processing high‑hardness biocompatible materials like Ti6Al4V titanium alloy.

Typical applications: Orthopedic locking screws, bone plates, intramedullary nails, and precision mold components.

Plasma Cutting

CNC plasma cutting for medium‑thick plates from 6mm to 50mm, offering fast processing speed and low cost for batch rough machining. We have provided customized CNC cutting services to industries including steel structure, chassis cabinets, elevators, agricultural machinery, and construction machinery, with a monthly processing capacity of 30 tons and a 99% on‑time delivery rate.

Water‑Guided Laser Technology (Zero Heat‑Affected Zone)

For applications requiring zero heat‑affected zones, we employ LCS800 water‑guided laser processing equipment. Key specifications:

Parameter	Specification
Laser Wavelength	532 nm
Laser Power	20--200 W
Max Water Pressure	600 bar
Minimum Kerf Width	0.030 mm

Core advantage: The laser beam is transmitted through total internal reflection in a micron‑scale water jet, achieving zero heat‑affected zone, no micro‑cracks, and no debris deposition --- cuts are parallel with no V‑shape.

Typical applications: Silicon carbide, CFRP composites, semiconductor devices, and other heat‑sensitive materials.

Precision

dimensional accuracy	OD	ID	SW	SH	DA
unit:±/mm	0.005	0.008	0.002	0.005	0.0001
Geometric accuracy	roundness	coaxiality	symmetry	concentricity	circular runout
unit:±/mm	0.002	0.005	0.008	0.005	0.005
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

Case Study

Ultra‑Thin Micro‑Magnetic Stainless Steel Shim -- Precision CNC Cutting

This ultra‑thin shim is made from imported 304 non‑magnetic stainless steel, primarily used as an isolation spacer inside micro servo motors for a European automation equipment manufacturer. It serves as a critical magnetic isolation component within precision transmission assemblies.

Parameter	Requirement
Material	Imported 304 non‑magnetic stainless steel
Thickness	0.5mm ± 0.002mm
Flatness	≤ 0.002mm
Surface	No tool marks, scratches, or indentations
Magnetic Property	Micro‑magnetic or completely non‑magnetic (< 0.02mT)
Overall Dimensions	Length 43.96mm, Width 9.00mm
Mounting Holes	2× Φ2.10 through holes, 2× Φ2.20 counter‑sunk holes, 1× Φ3.2 locating hole
Hole Position Tolerance	±0.003mm

Why this was a challenge: The client had previously approached three local machining shops --- all samples failed. The 0.5mm ultra‑thin material is prone to vibration and warping during conventional clamping. Achieving 0.002mm flatness on such a thin plate is extremely difficult, and maintaining non‑magnetic properties after machining requires dedicated stress‑relief and demagnetising steps.

Our Solution

• Raw material screening: Incoming 304 sheets were 100% thickness‑checked; only coils with thickness variation within ±0.001mm were accepted.
• Vacuum adsorption fixture: Custom‑designed silicone‑coated vacuum chuck eliminates clamping marks and holds the thin plate without deformation.
• Multi‑stage low‑stress machining: Roughing with 0.05mm depth of cut, finishing with diamond‑coated tools at reduced feed rates; staged machining releases internal stress gradually.
• Heat treatment & demagnetising: 280°C stress‑relief baking followed by 160°C secondary annealing, then 3‑cycle automated demagnetising to achieve residual magnetism < 0.02mT.
• Chemical electrolytic polishing: No mechanical abrasion --- achieves Ra ≤ 0.02μm without surface scratches.
• 100% inspection: Every part measured with CMM, laser flatness gauge, and magnetic detector; full dimensional reports provided with each shipment.

Measured Results (Sample Data)

Parameter	Sample 1	Sample 2	Sample 3	Requirement
Overall Length	43.959mm	43.961mm	43.958mm	43.96 ±0.02mm
Overall Width	8.999mm	9.001mm	9.000mm	9.00 ±0.02mm
Thickness	0.501mm	0.499mm	0.500mm	0.5 ±0.002mm
Flatness	0.0012mm	0.0015mm	0.0009mm	≤ 0.002mm
Residual Magnetism	0.013mT	0.008mT	0.010mT	< 0.02mT
Surface Roughness	Ra 0.018μm	Ra 0.016μm	Ra 0.019μm	Ra ≤ 0.02μm

Client outcome: The customer's motor rework rate dropped from 15% to 0 across six consecutive batches. Assembly efficiency improved by 32%. The client has now placed annual orders exceeding 80,000 pieces for this component.

"Sanluo's customised CNC cutting process and full‑inspection system solved a two‑year pain point. Very few shops can achieve 0.002mm flatness on 0.5mm sheet --- we have found our long‑term partner." --- Written client testimonial.

0.55mm Thin‑Wall Sensor Housing -- CNC Turning & Milling Integrated Solution

This thin‑wall housing is made from H62 brass and serves as the core support structure inside industrial high‑precision photoelectric sensors. The part must withstand constant temperature environments and mate with spring probes, sealing rings, and locating pins with precision interference fits.

Parameter	Requirement
Overall Length	1.55mm ± 0.05mm
Max Outer Diameter	80.31mm
Wall Thickness	0.55mm (single side)
Coaxiality	0.01mm
Surface Finish (mating faces)	Ra 0.8
Internal Groove	Depth 0.85±0.02mm, Width 0.55±0.02mm, Radius R0.03
Tolerances (IT1804‑2000)	±0.02~±0.05mm for general dimensions

Why previous suppliers failed: Three other shops attempted samples but all were scrapped due to wall deformation, out‑of‑tolerance coaxiality, and burrs inside the narrow groove. The 0.55mm thin wall is extremely fragile and tends to vibrate or distort during conventional turning.

Our Solution

• Swiss‑type CNC lathe + turn‑mill centre: One‑time clamping on a 5‑axis machine eliminates positioning errors.
• Stress‑relief annealing: 60°C low‑temperature baking for 2 hours before machining.
• Layered, low‑depth cutting: Roughing at 0.08mm depth and 0.06mm/rev feed to minimise cutting force.
• Internal cooling: High‑pressure coolant directed at the thin wall to dissipate heat and prevent deformation.
• Two‑step finishing: Semi‑finish + 30‑minute stress release, then final finish at 0.03mm/rev for stable coaxiality.
• Ultrasonic deburring + passivation: Ensures burr‑free grooves and Ra ≤ 0.7 on mating faces.

Measured Results (Sample Data)

Parameter	Sample 1	Sample 2	Sample 3	Requirement
Overall Length	1.53mm	1.56mm	1.54mm	1.55 ±0.05mm
Wall Thickness	0.548mm	0.551mm	0.549mm	0.55mm (nominal)
Coaxiality	0.007mm	0.006mm	0.008mm	≤ 0.01mm
Groove Depth	0.842mm	0.853mm	0.847mm	0.85 ±0.02mm
Groove Width	0.551mm	0.549mm	0.552mm	0.55 ±0.02mm
Surface Roughness (mating)	Ra 0.65	Ra 0.72	Ra 0.68	Ra ≤ 0.8

Client outcome: The defect rate dropped from 42% (previous supplier) to 0% after 10,000 pcs delivered. Sensor signal drift decreased by 90%, and the client's after‑sales rework cost reduced by 70%. They have now placed a monthly recurring order of 8,000--12,000 pieces.

Quality Assurance & Inspection

Our commitment to quality is backed by comprehensive inspection equipment and ISO9001:2008 certification. We deploy a wide range of measuring instruments:

• CMM coordinate measuring machines
• Vision measuring systems & projectors
• Laser diameter gauges & laser interferometers
• Roughness testers, roundness testers, tool microscopes
• Micrometers, pin gauges, dial indicators, height gauges
• Caliper, gauge blocks, hardness testers, thread gauges
• Stereo microscopes for surface inspection

Smart nesting optimisation software maximises material utilisation while maintaining precision. Our monthly processing capacity reaches 30 tons with a 99% on‑time delivery rate, serving industries including steel structure, chassis cabinets, elevators, agricultural machinery, and construction machinery.

Why Choose Sanluo Precision for Your Cutting Needs

• Experience you can trust: 18+ years in precision machining, backed by a 230‑person team including senior engineers.
• Advanced equipment: 130+ production machines, including 5‑axis CNC, Swiss‑type lathes, and water‑guided laser systems.
• Proven quality: 98.8% quality pass rate, serving Fortune‑500 clients like Huawei, BYD, and Mindray.
• Customised solutions: From prototypes to high‑volume production, we tailor processes to your exact specifications.
• Full traceability: Every batch comes with complete inspection reports, and we retain production records for 18 months.
• Global shipping: Reliable logistics to Europe, Americas, and beyond, with fast response and transparent communication.

Ready to discuss your project? Send us your 2D/3D drawings for a free technical evaluation and quotation. Our Senior Technical Manager will personally review your requirements and propose the optimal CNC cutting strategy.