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Laser Cutting

Laser Cutting

Sheet Metal

One-stop sheet metal fabrication including laser cutting, CNC bending, riveting and assembly. We process sheets from 0.5mm to 12mm in SPCC, SGCC, stainless steel and aluminum. Strict tolerance control and various finishing options (powder coating, brushing, anodizing) ensure high-quality enclosures, cabinets and protective housings.

Capability Module

Core Service Item

Detailed Description

Application Scenario

Service Guarantee

Custom Service Capability

Full-Process OEM/ODM Sheet Metal Fabrication One-Stop Service

Covering full-chain services including sheet metal DFM process optimization, laser cutting, CNC bending, stamping forming, welding assembly, grinding and straightening, and full-range surface treatment. Support full-cycle cooperation from prototype making, small-batch trial production to mass production, and can provide integrated delivery of sheet metal structural parts + machined parts.

Industrial equipment cabinets/chassis, compressor enclosures, construction machinery sheet metal guards, new energy equipment housings, hardware sheet metal brackets, precision instrument sheet metal enclosures, outdoor anti-corrosion sheet metal parts

Sheet metal unfolding drawings and quotations provided within 24 hours, 3-5 days fast prototype making, 1-on-1 dedicated sheet metal process engineer, free bending springback and forming process optimization solution to reduce mass production defect rate

Processable Materials

Full-Range Sheet Metal Material Adaptation

Cold rolled steel (SPCC), galvanized steel (SGCC/SECC), 304/316 stainless steel sheet, aluminum alloy sheet, aluminum sheet, copper sheet, electrolytic plate, galvalume steel sheet; processable thickness 0.5mm~12mm, support thin sheet traceless processing and thick plate high strength forming.

Anti-rust stainless steel equipment enclosures, lightweight aluminum sheet metal parts, load-bearing carbon steel frames, outdoor anti-corrosion galvanized sheet metal parts, decorative brushed sheet metal parts, conductive copper busbar sheet metal parts

Spectrum test report provided for each batch of materials, full material traceability, salt spray test and material mechanical property test report available on demand

Core Machining Processes

Full-Process Independent Sheet Metal Processing

Fiber laser cutting, CNC turret punching, CNC bending, servo bending, sheet metal stretch forming, rolling/edge curling, riveting/self-clinching/rivet nut, riveting, TIG/MIG welding, deburring, straightening, custom fixture fabrication; equipped with automatic bending robots and flexible sheet metal production lines to meet high-precision and high-efficiency mass production demands.

Complex special-shaped sheet metal contour parts, multi-bending precision structural parts, sealed sheet metal cavities, mass-produced standard sheet metal parts, scratch-free appearance decorative parts, load-bearing welded sheet metal assemblies

Full-process independent control without outsourcing links, match the optimal processing process according to product structure, batch and appearance requirements, precise control of bending springback, strong dimensional stability

Machining Accuracy & Tolerance Standard

Sheet Metal Full-Process Precision Machining Standard

Laser cutting dimension tolerance ±0.03~±0.05mm; CNC bending dimension tolerance ±0.05~±0.1mm; bending angle tolerance ±0.5°; sheet metal forming flatness ≤0.02mm/100mm; overall dimension tolerance of welded assembly ±0.1~±0.3mm; processed surface free of burrs, scratches and deformation, mirror brushed and fingerprint-free treatment available.

Precision instrument sheet metal enclosures, high-precision mounting brackets, sealed sheet metal cavities, exposed decorative parts, automation equipment sheet metal structural parts, new energy battery housings

First article CMM full dimension inspection, regular in-process inspection, 100% inspection of key bending dimensions, full set of dimension inspection report and qualified appearance inspection certificate provided with shipment

Drawing Compatibility

Full-Format Drawing Compatibility & Reverse Engineering

Compatible with 2D CAD, 3D STEP/IGS/SolidWorks/UG and other mainstream design formats, automatic sheet metal unfolding and process optimization available; support reverse mapping and reverse engineering development from physical samples, can assist customers in sheet metal structure lightweight design, mass production process optimization and cost control.

New product R&D sheet metal prototypes, localization replacement of imported sheet metal parts, non-standard equipment enclosure customization, old equipment sheet metal parts reproduction, mass product structure iteration optimization

Professional sheet metal engineers complete drawing review within 24 hours, pre-judge bending interference, forming cracking, welding deformation risks, provide optimal mass production processing scheme

Quality Control System

Full-Process Sheet Metal Quality Traceability

Strictly implement ISO9001 quality management system, full-process control from incoming material thickness/material inspection, first article inspection of laser cutting, in-process inspection of bending, welding forming inspection, to final inspection of surface treatment; NDT inspection, salt spray test and coating adhesion test can be provided on demand for key parts.

Export-compliant sheet metal parts, outdoor safety structural parts, high-voltage equipment protection enclosures, food-grade stainless steel sheet metal parts, medical equipment sheet metal enclosures

All products come with batch quality inspection certificate, full record of material, dimension and appearance, free rework adjustment for non-artificial damage within warranty period

Production & Delivery Capacity

Stable Mass Production & Fast Delivery Capability

Equipped with high-power fiber laser cutting machines, CNC turret punching machines, full series of CNC bending machines, rolling machines, welding stations, supporting automatic sheet metal production lines, monthly sheet metal processing capacity up to 50,000+ pieces, can undertake simultaneous production of multiple sets of complex sheet metal parts.

Small-batch prototype trial orders, annual framework bulk orders, sheet metal spare parts for global export complete sets of equipment, urgent rush prototype orders

Conventional simple sheet metal parts delivered in 7-10 days, complex precision sheet metal assemblies delivered in 15-30 days, priority scheduling for urgent orders, full set of customs clearance documents provided for export orders, on-time delivery rate ≥98%

Post-Processing Supporting Capability

One-Stop Supporting of Full-Range Sheet Metal Surface Treatment

Can complete sandblasting, wire drawing, polishing, mirror treatment, black oxide, anodizing, electrophoresis, Dacromet, electrostatic powder coating, liquid painting, galvanizing, nickel plating, passivation, lamination/film pasting and other full-range surface treatments, custom anti-corrosion, wear-resistant, aesthetic and insulating surface processes on demand.

Outdoor anti-corrosion sheet metal parts, appearance decorative display parts, corrosion-resistant working condition equipment enclosures, rust-proof storage sheet metal parts, insulating electronic equipment sheet metal parts

Full-process traceability of surface treatment, salt spray test and coating adhesion test available on demand, meet EU ROHS environmental protection export standards, stable anti-corrosion and wear-resistant performance

After-Sales Supporting Service

Full-Cycle Sheet Metal Operation & Maintenance Technical Support

Provide full-process after-sales services including custom sheet metal fixture fabrication, on-site bending/welding process guidance, rework and straightening of defective parts, mold modification and design change, continuous process optimization of mass-produced products, and custom packaging solutions, can provide sheet metal processing operation training to adapt to the full-cycle needs of customers in mass production.

Process iteration of mass-produced sheet metal parts, rework of deformed sheet metal parts, on-site assembly technical support for overseas customers, after-sales quality docking of bulk orders

Domestic after-sales response within 24 hours, on-site service within 72 hours; provide remote technical support within 72 hours for overseas customers, can support overseas on-site commissioning service

Hehua Profile

Shanghai Hehua Machinery Technology Co., Ltd. was established in 2005, and its subsidiary Hehua Machinery Technology (Kunshan) Co., Ltd. was established in 2018.

Hehua is a company specializing in automotive, rail transit, aerospace, wind power nuclear power, industrial machinery, and rack for semiconductor sealing and testing equipments, new energy equipment and other high-end equipment manufacturing companies that provide key metal parts and components.

Over 17800 square meters' plant which is located at No. 66, Xingpu Road, Lujia Town, Kunshan City, Jiangsu Province. The company has more than 160 employees and annual sales of more than 110 million RMB.

Hehua has passed ISO 9001 quality management system certification, IATF16949 automotive quality system certification,EN 15085 rail vehicle and parts welding system certification, and welders have passed EN 9606-1 qualification certification.

HEHUA Sheet Metal

Product Customization Process

Hehua Certificates

Hehua Partner

FAQ

Trust & Reliability?

Years of export experience to global markets, proving our reliability in quality, logistics, and compliance.

Certified quality management and standardized production ensure reliable and repeatable results for every order.

What tolerances can you achieve?

Our standard tolerance for CNC machining is DIN-2768-1-f (fine) or +/- 0.01mm. For high-precision requirements, we can achieve tolerances as tight as +/- 0.005mm depending on the geometry and material.

What surface finishes do you offer?

We provide one-stop surface treatment services, including: As-machined (De-burred) Sandblasting & Anodizing (Type II / Type III) Polishing & Mirror Polishing Powder Coating & Painting Laser Engraving (Logo/Text)

How fast can I get a quote?

Send us your 3D files (STEP/IGES) and 2D drawings (PDF). Our engineering team will analyze them and provide a detailed quote within 6-12 hours.

What is your typical lead time?

Prototypes: 3-7 days Production 10-20 days We also offer an Expedited Service for urgent projects.

Do you provide samples before mass production?

Yes, we always recommend making a pre-production sample for approval. We will send you photos/videos or ship the physical sample to you for verification before running the full batch.

What if the parts do not meet the specifications?

We have a strict Quality Control policy. If the parts do not meet the drawing specifications, we will remake them for free or

provide a full refund. We stand behind our quality 100%.

What materials can you machine?

We work with a wide range of materials including: Metals, Aluminum (6061, 7075), Stainless Steel (303, 304, 316), Brass, Copper, Titanium Plastics: ABS, POM (Delrin), PEEK, Nylon, Polycarbonate. If you need a special material, just let us know.