Custom Sheet Metal Bending Services
Koonze Model offers fast, accurate sheet metal bending for both prototypes and full-scale production. Whether you need simple angles or complex geometries, we deliver tight-tolerance parts with consistent quality — all while keeping lead times short and costs controlled.
- ±0.25° angular accuracy ensures your parts meet exact design specs every time.
- Works with aluminum, stainless steel, mild steel, and more — from 0.5 mm to 6 mm thick.
- Supports low- and high-volume runs, from single parts to 100,000+ units.
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Precision Metal Bending Services by Koonze Model
Koonze Model delivers high-precision metal bending services for parts requiring exact angles and clean lines. Using advanced press brakes and CNC bending equipment, we work with a wide range of metals including aluminum, stainless steel, and carbon steel, supporting material thicknesses from 0.5 mm to 6 mm.
Our process handles both simple bends and complex multi-angle geometries with repeatable accuracy. Whether you need one-off prototypes or full production runs, we ensure tight tolerances and fast turnaround.
From enclosures and brackets to custom structural components, we help bring your sheet metal designs to life with quality you can rely on.
Our Metal Bending Process
At Koonze Model, we follow a proven, detail-oriented process to ensure every bent metal part meets precise specifications. From material selection to final inspection, each step is designed for accuracy, consistency, and quality.
Start Your Custom Metal Bending Order Now
Leverage our precision bending expertise to bring your complex parts to life with high accuracy and quality.
Metal Bending Materials
Choose from a variety of sheet metal materials like aluminum, stainless steel, and brass—each selected for its distinct properties. We help match your project with the right material to ensure optimal performance, durability, and finish.

Aluminum
Aluminum is lightweight, corrosion-resistant, and offers a high strength-to-weight ratio—making it ideal for aerospace and automotive components. Its excellent machinability also makes it a top choice for efficient and precise sheet metal bending.
- Aluminum 5052
- Aluminum 5083
- Aluminum 6061 (It can be cut with a laser cutter but not bender.)

Brass
Brass is prized for its malleability, warm gold-like appearance, and excellent acoustic qualities. It’s a popular choice for decorative components, as well as functional parts like gears and valves.
- Brass C27400
- Brass C28000
- Brass C36000
Note: Sheet metal process can not process more than 5MM thickness of brass.

Copper
Copper is renowned for its superior electrical and thermal conductivity. Its high ductility makes it ideal for applications such as electrical components, roofing systems, and plumbing fixtures.
- Copper C101(T2)
- Copper C103(T1)
- Copper C103(TU2)
- Copper C110(TU0)
Note: Sheet metal process can not process more than 5 mm thickness of copper.

Steel
Steel is exceptionally strong and durable, making it a key material in construction and heavy-duty applications. Its properties can be enhanced through alloying, improving hardness, corrosion resistance, and overall performance in demanding environments.
- SPCC
- Galvanized Steel (SGCC / SECC)
- Q235
- Steel 1020

Stainless Steel
Stainless steel is valued for its excellent corrosion resistance, strength, and cleanability. Its sleek appearance and durability make it a top choice for applications in medical equipment, food processing, and marine environments.
- Stainless Steel SUS 304
Note: The materials listed above are for reference only. We offer over 100 different materials – please contact us now to find the best option for your needs.
Various Surface Finishes Available
As Machined
As-machined" finish means the part comes straight from the CNC machine—cost-effective with visible tool marks.
Anodizing
Anodizing enhances corrosion resistance and durability, while enabling color dyeing—perfect for aluminum components.
Polishing
Polishing creates a glossy finish by smoothing surface roughness, boosting the metal’s visual appeal.
Sand Blasting
Sand blasting employs pressurized sand or similar media to clean and texture surfaces, resulting in a consistent matte finish.
Tumbling
Tumbling smooths and polishes small parts through friction and abrasion inside a barrel, producing a uniform yet subtly textured finish.
Electropolish
Electropolishing is a chemical treatment that enhances surface smoothness and brightness while boosting corrosion resistance.
Alodine
Alodine coating offers corrosion resistance and enhances paint adhesion, primarily applied to aluminum surfaces.
Heat Treatment
Heat treatment modifies a metal’s mechanical properties to boost hardness, strength, or ductility.
Brushed Finish
A brushed finish produces a uniform satin texture with fine directional lines, helping to minimize the appearance of scratches and surface imperfections.
Powder Coating
Powder coating delivers a durable, wear-resistant finish with a wide range of color and texture choices, ideal for protecting various surfaces.
Electroplating
Electroplating deposits a thin metal coating on parts to enhance wear resistance, corrosion protection, and electrical conductivity.
Black Oxide
Black oxide is a conversion coating applied to ferrous metals that enhances corrosion resistance and reduces light reflection.
Why Choose Our Metal Bending Services
Precision Bending with Tight Tolerances
Consistent bend accuracy down to ±0.5°, ensuring every part meets your specs.
Supports Prototypes to Large Runs
Whether you need 1 part or 10,000+, we scale to meet your production needs.
Wide Material Compatibility
Aluminum, stainless steel, brass, copper, and more—choose the best fit for your project.
Fast Turnaround, Global Delivery
Quick lead times with international shipping, so your parts arrive when you need them.
Get a Free Quote for Your Metal Bending Project Today
Submit your design and material specs to receive a fast, no-obligation quote tailored to your needs.

Advantages of Metal Bending with Koonze Model
Bending metal parts delivers clear benefits—greater accuracy, fewer components, and cleaner finishes—all with improved efficiency.
The absence of visible welds results in a smoother, cleaner surface finish that enhances both the appearance and structural integrity of the part. This not only improves the overall aesthetics but also reduces the need for secondary finishing, making it ideal for consumer-facing or precision-engineered components.
Using metal bending instead of welding enhances part accuracy by eliminating variables introduced through manual or semi-manual weld processes. Bending relies on controlled, repeatable machine operations, which reduces the risk of distortion, misalignment, and inconsistencies. This results in tighter tolerances, better dimensional stability, and more reliable fit and function—especially critical for precision assemblies and high-performance applications.
By using metal bending instead of welding multiple parts together, you can achieve the same structural or functional result with fewer individual pieces. This streamlined approach reduces the number of seams, joints, and potential failure points, while also simplifying the overall design. Fewer components mean faster assembly, lower production costs, and improved part strength and integrity—making it an efficient choice for both prototyping and large-scale manufacturing.
Typical Applications of Sheet Metal Bending
From structural supports to detailed enclosures, bent metal parts offer strength and versatility for a wide array of end uses.
Custom-bent metal enclosures provide reliable housing for electronics and machinery, balancing protection, accessibility, and clean visual design.
Accurate bending ensures strong, reliable brackets and mounts that hold components securely in place—ideal for both industrial and everyday installations.
Whether for architecture or equipment access, bent metal panels and doors are tailored to fit exact specs, offering both form and function.
Bent metal adds structural integrity to frames and beams, making them ideal for load-bearing roles in automotive, construction, and equipment builds.
CNC bending enables the fabrication of intricate shapes with tight tolerances, perfect for parts that demand precision and advanced functionality.

How Koonze Injection Molding Process Work
01
Ideal for 1 to 100,000 units, perfect for prototypes, market testing, or customized products. Even at small quantities, we ensure cost-effectiveness with competitive per-unit prices.
02
For orders between 100,000 and 1 million units, we provide the balance of flexibility and cost savings, offering lower prices per part with minimal tooling costs.
03
For high-volume runs of over 1 million units, our stamping process becomes highly cost-effective, driving down per-unit costs while maintaining precision and scalability.
04
Low-volume runs with minimal tool revisions, ideal for quick market testing or small batch production with reduced setup costs.
05
Larger, more involved production runs optimized for consistent quality, low per-unit costs, and high throughput, making it perfect for mass production at scale.
FAQs About Our Metal Bending Services
We optimize bending radius and parameters based on material properties to minimize stress and avoid cracking.
Yes, our advanced multi-axis CNC press brakes can perform complex and multi-step bends with high precision.
We take protective measures to minimize scratches or marks, maintaining a clean and smooth surface finish.
Absolutely, we accommodate everything from one-off prototypes to full production runs.
Yes, bent components can be further processed by welding, coating, or machining as needed.
Lead time depends on complexity and volume; simple parts usually take 1-3 days, while complex orders may require longer.
Metal Bending Resources

