Skip to content 
Custom Sheet Metal Fabrication Services
- Precision Manufacturing: Achieve tight tolerances for complex sheet metal designs.
- Fast Lead Time: Prototypes and parts delivered in as fast as 3-7 business days.
- Certified Quality: ISO 9001:2015, ISO 13485, ISO 14001, and IATF 16949 certified.
Bring your product ideas to life quickly and accurately with our expert prototyping services.
Sheet Metal Fabrication Process & Capabilities
We focus on high precision sheet metal fabrication in diverse industries. Our high-technology methods facilitate quick, dependable, and affordable solutions since the initial stage of prototyping all the way to high-volume production. Some of the services that we provide include laser cutting, punching, bending, welding, stamping, and assembly, all of which are directed towards the provision of the highest quality parts in the most accurate and fastest possible manner.
Lewei Precision involves the cutting of sheet metal with high powered lasers to cut with precision and produce intricate patterns and tight tolerances. Laser cutting is ideal to use in the case of flat-sheet designs, complex features, and minimizes wastage of materials and quality, so it is ideal in prototyping or any large run of production.
With press brakes and high end forming machines, Lewei Precision shapes sheet metal into accurate angles and intricate shapes. The service supports many material thicknesses, and provides precise bends of anything including simple design and complex design.
Our welding services are of high quality, such as TIG and MIG welding, which we are offering to join sheet metal components. Such methods guarantee a high level of strength and durability of joints in custom assemblies which provide the structural integrity needed in sophisticated designs and end-use applications.
In our punching service, we use high-tech punch equipment to cut the correct holes, slots and shapes on sheet metal. This process also guarantees high accuracy both in small-lot and large scale output, and delivers reliable and economical outcomes to the different applications.
We provide 100 percent assembly and finishing of sheet metals. Be it in post processing, such as polishing or coating or a combination of various parts into a finished product we offer solutions that are not only functional but also attractive to the eyes.
Lewei Precision involves stamping of sheet metal in order to shape it into cold-formed parts. This is a high precision process that guarantees a high consistency in quality in the case of large production volume which makes it ideal in the production of parts which have detailed and tight tolerances.
How Lewei Precision Sheet Metal Fabrication Works
At Lewei Precision, our network of sheet metal stores in China is tremendous and that makes us deal with a very diverse set of projects. We also begin by translating your CAD drawings into machine code, whether as complex prototypes or full assemblies. The metal is then cut, bended, welded, riveted and vamped into shape by our experienced team to fit your specific requirements.
We also provide our clients with multiple finishing options which means that our parts will not only work to their full capacity, but also have a polished and professional look. We provide single unit and large scale production with high quality work at the required time and even the tightest tolerance of less than 0.01mm and a short lead time of 1 day.
Sheet Metal Materials
Select from a diverse range of sheet metal materials such as aluminum, stainless steel, and brass. Each material is carefully selected for its unique properties, enabling us to recommend the most suitable option based on the specific requirements and applications of your project.
As machined, Anodizing, Powder coating, Electroplating, Painting, Sand blasting, Polishing
Copper is highly conductive and malleable, making it a top choice for electrical wiring and plumbing. Its natural antibacterial properties also make it ideal for medical applications, while its aesthetic appeal suits decorative items and artwork.
Red-orange
Copper C101(T2), Copper C103(T1), Copper C103(TU2), Copper C110(TU0), Beryllium Copper
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickel, Chrome plating, Brushed finish
$$$
About 5 business days
Bronze, an alloy of copper and tin, is known for its durability and resistance to corrosion. It’s widely used in marine applications, sculptures, and bearings, thanks to its strength and ability to withstand harsh environments.
Metallic brown
Tin Bronze
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickle, Chrome plating, Powder coating, Brushed finish
About 5 business days
Steel is a strong and versatile material, widely used in construction and manufacturing. Its high tensile strength makes it suitable for structural components, while various Subtypes enhance its properties for specialized applications, like tools and machinery.
Silver Grey
Steel 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36, Die steel, Alloy steel, Chisel tool steel, Spring steel, High speed steel, Cold rolled steel, Bearing steel, SPCC
As machined, Electroplating, Passivation, Powder coating
About 7 business days
Stainless steel is resistant to rust and staining, making it perfect for kitchen appliances and medical equipment. Its strength and aesthetic appeal also make it a popular choice for architectural designs and automotive parts.
Silver Grey
Stainless Steel SUS201, SUS303, SUS 304, SUS316, SUS316L, SUS42, SUS430, SUS431, SUS440C, SUS630/17-4PH, AISI 304
As machined, Electroplating, Passivation, Powder coating
ABout 7 business days
Magnesium is lightweight yet strong, often used in aerospace and automotive applications where reducing weight is critical. Its machinability allows for complex shapes, and it’s also utilized in various electronic devices for its excellent conductivity.
White-silver
Magnesium Alloy AZ31B, AZ91D
As machined, Polishing, Sand Blasting, Tumbling, Alodine, Heat treatment, Anodizing, Teflon coating, Electroless nickel, Painting, Powder coating, Electrophoresis
ABout 8 business days
Titanium is incredibly strong and lightweight, making it ideal for aerospace and medical implants. Its resistance to corrosion and biocompatibility enhance its use in demanding environments, while its high strength-to-weight ratio suits various industrial applications.
Titanium Alloy TA1, Alloy TA2, Alloy TC4/Ti-6Al 4V
As machined, Polishing, Sand Blasting, Tumbling, Electropolish, Alodine, Anodizing, Electroless nickel, Painting, Powder coating, Brushed finish
ABout 8 business days
Lewei Precision Surface Finishing Options for Sheet Metal
We can provide a large assortment of sheet metal fabrication surface finishing to improve the functionality and look of your custom metal components. Having better corrosion protection or smooth polished finish, or a particular finish, we can offer you a variety of finishing options.
Powder coating forms a thick and hard coating to the surface which provides good wearability. It is also available in a very broad color and texture palette and therefore can be applied to many types of surfaces and usages.
Anaodizing is a finishes process that enhances wear and corrosion resistance properties particularly on aluminium parts. It can also be dyed in color thus is also good in terms of durability and beauty.
A brushed finish offers a satin-like texture in one direction only, making the marks and scratches on the metal less visible. It is mostly applied to stainless steel components, and it will provide a contemporary and professional appearance.
Electroplating is a process of attaching a coating of the metal surface to the parts to enhance the wear life, resistance to corrosion, and surface conductivity. This finish is best suited to those parts which are needed as more durable and of a sleek look.
Polishing gives a high-gloss finish to metal parts and lowers the roughness of the surface as well as improving the aesthetic value of the parts. It is ideal when the appearance of the part is a key consideration.
Black oxidizing is a conversion coating that is normally used on ferrous metals. It enhances resistance to corrosion and reduces the amount of light reflected meaning it is ideal in those parts that are exposed to severe environments.
Lewei Precision Solutions
Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Lewei Precision services offer the flexibility you need.
Receive high-quality sheet metal prototypes in just 3 business days. With no minimum order quantity, our fast and cost-effective service accelerates design validation and helps streamline product iterations for quicker development.
- Lead Time: 3-7 days
- Quantity: 1-50 pcs
Perfect for transitioning to full-scale production or handling small batch runs, our low-volume sheet metal fabrication service adapts to your timeline, ensuring reliable, on-time delivery and exceptional quality.
- Lead Time: 1-3 weeks
- Quantity: 50-5000 pcs
Our comprehensive, all-in-one service delivers fast, precise high-volume sheet metal fabrication, including finishing and assembly. We meet your specifications while optimizing time and cost for large-scale production runs.
- Lead Time: 4-8 weeks
- Quantity: 5,000+ pcs
Sheet Metal Fabrication Capabilities at Lewei
Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.
Specification | Description |
General Tolerances | Metals : ISO 2768-c |
Cutting Feature | ± .00787” |
Bend Angle | ± 1.0° |
Bend to Edge | ±0.010″ |
Bend to Hole | ±0.2 mm |
Trusted Sheet Metal Parts, Built to Perfection
At Lewei Precision, quality is our top priority at every stage, from design to production. We apply Design for Manufacturability (DFM) principles to ensure that we understand your specific needs and provide the best solutions for your project. Our advanced capabilities include computer-controlled processes such as laser cutting, bending, punching, welding, stamping, and riveting, all carried out with precision to meet your specifications.
To maintain the highest standards, we employ state-of-the-art inspection tools, including CMM, 2D measuring instruments, XRF analyzers, gauges, micrometers, and calipers. With years of experience and ISO-certified fabrication facilities, we deliver custom sheet metal parts with tight tolerances. Choose Lewei Precision for reliable, accurate, and high-quality sheet metal parts tailored to your project’s needs.
- Certifications: ISO 9001:2015, ISO 13485, ISO 14001, IATF 16949
- Quality Engineers: 30+
- Inspection Equipment: 20+
- Tolerances: 1 inch or less
Instant Sheet Metal Quoting with Lewei Precision
Need sheet metal parts quickly? Lewei Precision’s online quoting platform makes it easy to select specs, materials, and finishes in just a few clicks. You can submit designs and place orders anytime, anywhere no need to visit a shop. It’s a fast, efficient, and precise way to get the parts you need on your schedule. Explore our platform today and get started on your next project with ease.
Sheet Metal Fabrication for Diverse Industries
We offer custom, high-precision sheet metal fabrication solutions tailored to meet the unique needs of various industries. Whether it’s aerospace, automotive, medical devices, or consumer products, we prioritize quality, durability, and performance to ensure every part is made to the highest standards.
3D Printing vs. Vacuum Casting vs. Injection Molding
Your project’s stage, quantity, and part function will guide the right manufacturing choice. Different methods work best at different points in development.
| VS | 3D Printing | Vacuum Casting | Injection Molding |
|---|---|---|---|
| Tooling Cost | $0 (no tooling required) | $500–2,000 (silicone molds) | $5,000–50,000+ (aluminum or steel molds) |
| Lead Time | 1–3 days | 5–15 days | 4–12 weeks |
| Part Quantity | 1–20 parts | 20–200 parts optimal | 1,000+ parts optimal |
| Tolerance | ±0.1–0.3 mm | ±0.1–0.8 mm | ±0.05–0.1 mm |
| Surface Finish | Layer lines, requires post-processing | Smooth, minimal finishing | Superior, production-ready |
| Complex Geometry | Excellent, any shape | Handles undercuts, fine details | Limited by mold design |
| Material Options | Limited to print resins/filaments | Urethane varieties (flexible to rigid) | Wide range of thermoplastics |
| Design Changes | Instant, no cost penalty | Easy and cost-effective | Expensive mold modifications |
Why Choose Lewei Precision for Sheet Metal Fabrication?
At Lewei Precision, we focus on high-precision sheet metal fabrication which provide reliable, fast, and high-quality custom parts. Our professional team will make sure that every component is produced to your specifications, whether prototypes or bulk production with short lead times.
Unmatched Precision:
Achieve tight tolerances of up to ±0.005” for high-accuracy parts, perfect for complex and intricate designs.
Easily upload your designs and receive a quote in as fast as one hour, with configurable options for materials and finishes.
Deliver your sheet metal prototypes and production parts in only 3-7 business days, with confidence they will arrive on time to meet your project deadlines.
Lewei Precision Solutions
Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Lewei Precision services offer the flexibility you need.
How to Get Started with Sheet Metal Fabrication
Request a Quote
You only need to upload your CADs in our platform to start. We will evaluate your project and give you the detailed quote comprising of material choice, lead time, and cost.
Approve Sample
The moment you get the quote, we will make you a sample. This will be taken to make sure that the design and the design meets your expectations before we go to full scale production.
Production & Delivery
Once your sample is accepted we then proceed with production. Our team can guarantee that your parts will be made to spec and in time, as per what had been agreed upon.
Certified Quality Control and Testing
In Lewei Precision, there is the highest quality assurance in terms of inspection and testing. Our components are carefully checked in terms of dimensional accuracy through the help of modern equipment such as CMM ( Coordinate Measuring Machines ) and your components are of your specifications. We also perform GD&T ( Geometric Dimensioning and Tolerancing ) & tolerance check, which means that parts are in accordance with ISO and ASME requirements of dimensional and geometric conformity.
We also conduct finish and surface test to determine the quality and fineness of the finish and consistency of each part to ensure the part meets the requirements of your project. In order to achieve transparency to the full extent, we provide traceability and documentation including material certificates (MTRs), FAI reports, and CMM data sheets, so that all details of the production process are recorded and can be verified.
Advantages
Advantages of Sheet Metal Fabrication
Precision machining offers significant benefits by producing parts with exceptional accuracy.
- Precision: Sheets are also fabricated in sheet metal, making them to be highly precise and accurate in their production pertaining to tight tolerances thus ideal in aerospace and medical industries.
- Consistency: The process depends on uniformity in the large manufacturing batches and each component is the same and minimizes errors in mass manufacturing.
- Material Flexibility: It works on very diverse materials that include metals and plastics and this gives the manufacturers the chance to choose the most appropriate material in terms of strength, weight and durability.
- Complex Designs: Intensive machinery allows shaping up complex shapes, which might have been hardly or impossible to make with the manual processes.
- Minimal Waste: The accuracy of sheet metal manufacture minimizes the wastage of materials and will assist in reducing cost and the impact on the environment.
- Faster Production: Fabrication of sheet metals through automations will result to quick turnaround with an ability to satisfy the market demand.
Applications
Applications of Sheet Metal Fabrication
Sheet metal fabrication produces a diverse range of parts and components, each tailored to meet specific functional and aesthetic requirements:
- Enclosures & Casings: Applied to cover machinery and electronics, it provides resistance to heat and strength.
- Brackets & Mounts: Offers protection and certainty to mount all types of applications.
- Panels & Chassis: Creates the structural system of automobile, electronic and machine.
- Ductwork & Ventilation: Critical in the HVAC systems, which guarantee effective air circulation and temperature regulation.
- Custom Shelving & Storage: Proposes specialized storage options of business and industrial premises.
- Decorative Elements: Gives beauty to buildings, automobiles and consumer products.
- Prototypes: Prototyping that enables the testing of new designs and ideas is done in a short duration by helps.
CNC Machining FAQs
1. What is the sheet metal fabrication?
The art of converting flat sheets of metal into individual parts and components is known as sheet metal fabrication and involves such methods as cutting, bending, punching, welding, and assembly. It has a vast application in many industries such as automotive, aerospace, and medical to make strong and accurate metal components.
2. What are the areas of sheet metal fabrication?
Lewei Precision offers sheet metal fabrication to many sectors such as aerospace, auto-parts, robots, medical appliances, consumer goods, and automation. Our specialty is in the work of custom solutions based on the needs of the individual sector.
3. What are the advantages of fabrication in sheet metal?
The sheet metal fabrication has advantages such as high precision, flexibility, medium to high-volume manufacturing is economical, and robust and robust parts. It best suits in the production of complex and simple designs that are highly durable and consume little material waste.
4. What is the time required to make sheet metal parts?
The lead time in sheet metal fabrication is normally 3-7 business days on prototyping and small batches. Ordering larger orders or parts that are more difficult might take time but we maintain high quality and speed of turnaround.
5. Is it possible to use sheet metal fabrication to work with complex designs?
Yes, Lewei Precision is good at processing complicated geometries, such as complicated bends, custom shapes, and fine details. We have a highly-developed equipment which enables us to produce high precision parts with narrow tolerances and complex shapes.
6. What are your sheet metal fabrics made of?
Materials in which we fabricate sheets metal include aluminum, stainless steel, copper, brass and custom alloys. The material, however, will be based on the requirements of your project as far as strength, durability, and resistance to corrosion are concerned.
7. Which finishes are offered on sheet metal parts?
We provide variety in finishes to sheet metal components such as anodizing, powder coating, polishing, sandblasting among others. The various finish options have varying aesthetic and functional qualities, like increased corrosion resistance or better appearance.
8. How much does a sheet metal fabrication cost?
The fabrication by the use of sheet metal varies according to the material to be fabricated, the design complexity, and the quantity. We offer a custom quote depending on your unique project requirements and also give competitive price to do low and high volume work.
9. What about asking a quote on sheet metal fabrication?
In order to receive a quote, all one needs to do is upload his or her design files onto our online system or contact our team. We will look through your project and give you a detailed quote, on what you want, lead time, and quote price as per your specifications.
10. Is it possible to use sheet metal fabrication in both prototypes and mass production?
Yes, sheet metal making is perfect in case of prototypes as well as mass production. And whether you require a small number of parts to make a prototype or thousands of parts to produce on a large scale, Lewei Precision has the solution to your requirements with lead times that are fast and quality that is consistent.
English 
简体中文 
Español 
Deutsch (Sie) 
日本語 
Português