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Sheet metal fabrication

Document submission platform

You can upload your design documents or machining requirements in this area to see instant pricing, delivery times and shipping times will have professional engineers feedback with you. Starway With dozens of machining processes, including CNC machining, metal welding, sheet cutting and injection molding, the Starway factory can provide you with a one-stop customized machining solution.

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What is sheet metal fabrication?

Sheet metal fabrication is the process of forming, cutting, and assembling metal sheets into various shapes and structures. It involves several techniques such as cutting, bending, and welding,surface treatment to create finished products from sheet metal materials. Sheet metal, typically made from materials like steel, aluminum, or copper, is widely used in various industries for manufacturing parts and components of machines, vehicles, appliances, and more.

Sanjun's online sheet metal fabrication services offer a comprehensive and efficient solution for producing parts based on 3D CAD files or engineering drawings. Sanjun provide a variety of materials, including stainless steel,aluminum, brass, steel, and stainless steel, and cover multiple fabrication processes such as stamping, cutting, bending, and welding. Our services also include assembly, such as installing PEM inserts, design packaging drawings and packaging services. Sanjun can accommodate both low-volume prototypes and volume production, offering competitive custom pricing for sheet metal fabrication. Sanjun is committed to bringing your idea
Service

Our Sheet Metal Fabrication Process

01
Material Selection
Material Selection
02
Cutting
Cutting
03
Bending
Bending
04
Forming
Forming
05
Welding
Welding
06
Surface Treatment
Surface Treatment
07
Assembly
Assembly
08
Quality Inspection
Quality Inspection
09
Packaging and Delivery
Packaging and Delivery

Our Common Processing Row Materials

  • Cold-rolled Steel
    Cold-rolled Steel
    Known for its good formability and strength, commonly used in manufacturing automotive parts, machinery components, and furniture.
  • Electrolytic Steel
    Electrolytic Steel
    Renowned for its outstanding corrosion resistance, it is widely used in industries such as construction, automotive, and home appliance manufacturing.
  • Galvanized Sheel
    Galvanized Sheel
    Steel coated with a layer of zinc for corrosion resistance, commonly used in outdoor equipment, pipelines, and structural construction.
  • Stainless Steel
    Stainless Steel
    Recognized for its corrosion resistance and excellent mechanical properties, suitable for producing kitchenware, medical equipment, and architectural components.

Tolerances

Laser Cutting Tolerance

 

Material Thickness Typical Tolerance
0.5 mm-2.0 mm ±0.1 mm
10.0 mm and above ± 0.3 mm
2.0 mm -5.0 mm ± 0.15 mm
5.0 mm-10.0 mm ± 0.2 mm

 

Bending Tolerance

 

Tolerances
Forming and Bending: +/- 0.4 mm
Bend to hole or feature: +/- 0.2 mm
Linear dimensions excluding locations to bend +/- 0.1 mm
Diameters with inserts +/- 0.06 mm
Angularity +/- 2 degrees
Surface roughness +/- 3.2 micrometers

 

Countersink Tolerances

 

Countersink Tolerances  
Machined countersink major diameter +/- 0.254 mm
Machined countersink minor diameter 2/3 thickness
Formed countersink major diameter +/- 0.381 mm
Formed countersink minor diameter +/- 0.381 mm

 

Sheet Metal Fabrication

 

Surface Finishing

 

Name Materials Color Texture Thickness
Anodizing Aluminum Clear, black, grey, red, blue, gold. Smooth, matte finish. A thin layer: 5-20 Weim Hard anodic oxide film: 60-200 Weim
Bead Blasting Aluminum, Brass, Stainless Steel, Steel None Matte 0.3mm-6mm
Powder Coating Aluminum, Brass, Stainless Steel, Steel Black, any RAL code or Pantone number Gloss or semi-gloss 5052 Aluminum 0.063″-0.500″6061 Aluminum 0.063″-0.500″7075 Aluminum 0.125″-0.250″ Mild Steel 0.048″-0.500″ 4130 Chromoly stee 0.050″-0.250″ Stainless Steel 0.048″-0.500″
Electroplating Aluminum, Brass, Stainless Steel, Steel Varies Smooth, glossy finish 30-500 Weiin
Polishing Aluminum, Brass, Stainless Steel, Steel N/A Glossy N/A
Brushing Aluminum, Brass, Stainless Steel, Steel Varies Satin N/A
Silkscreen Printing Aluminum, Brass, Stainless Steel, Steel N/A N/A 1 Weim
Passivation Stainless Steel None Unchanged 5Weim-25Weim

 

 

 

Testimonials

What Our Clients Say

These reviews reflect positive customer experiences and help build trust and appeal for your showroom.

Testimonials
Communication with the seller is very positive and always open to suggestions, modifications, and solutions. I am happy that I chose this company to finish the box I ordered with special needs, and they completed the job in amazing time with quality and details too. the good sent over sea in protected wooden box and warped proffisonaly . thank you
Service 9

Olivia

consumer
Testimonials10jpg
Box seems adequate, good value at this price. Be prepared to work it in order to have something secure and useful. a pretty good box for small electrical projects.
Service 10

Darlene Robertson

consumer
Testimonials1
My product was professionally made and delivery was on-time. Very professional and knowledgeable. Awesome customer service, everything come in great shape and what I asked, very satisfied, I recommend the supplier. Great service and easy to communicate. I will continue to order in the future
Service 1

Chloe

consumer
Testimonials3
I am extremely satisfied with the products I received. Service and quality were second to none. We will continue to develop a strong relationship with this company.
Service 2

Ethan

consumer
Testimonials4
good supplier repect our design to make sample, and mass order qty in highly quality.
Service 3

Liam

consumer
Testimonials7
Fast, professional and high quality. Looking forward to long term business. Thank you!
Service 4

Lucas

consumer
Testimonials8
I am very happy with the product I received. it was exactly as described and very well manufactured. Will do business again.
Service 5

Eli

consumer
Testimonials9
I'd like to thank you and the team at Sanjun for delivering a nicely product to us and on time. We are very pleased with the product and you will get our future business.
Service 6

Tom

consumer
Testimonials5
Sanjun is professional, making sample and mass production cargo Quality is very good! Smooth finish, no scratches. Good packing, no damage during shipment. I'll come back to order again.
Service 7

Mia

consumer
Testimonials6
Sunjun is professional, making sample and mass production cargo Quality is very good! Smooth finish, no scratches. Good packing, no damage during shipment. I'll come back to order again.
Service 8

Darlene Robertson

consumer
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