Are you looking for the best air bending sheet metal factories in China? If so, you’re in the right place. In this article, we’ll compare some of the top sheet metal fabrication companies in China, highlighting their advanced equipment, precision capabilities, and the industries they serve. Let’s dive in and find the perfect fit for your needs.

Sheet Metal Bending Services – Custom Metal Fabrication

Product Details: Supro MFG offers sheet metal bending services that include design, batch manufacturing, rapid prototyping, surface treatment, assembly, and testing. The process involves applying pressure to the sheet metal to exceed its yield strength, allowing for plastic deformation and the creation of various shapes and angles. The company uses advanced equipment, including 12 different sheet metal bending machines, CNC punching, and laser cutting. Materials such as stainless steel, carbon steel, aluminum, and copper alloys are supported. Services include beam cambering, structural steel bending, and custom bending for various industries like agriculture, defense, medical, and automobile manufacturing. Delivery times can be as

fast as 3 days, and the company provides free professional product design services and manufacturability reports[3].

Pros:
– Short delivery time and fast turnaround
– Economic solutions through improved production efficiency and strict quality con…
– Advanced equipment including CNC punching and laser cutting
– Free professional product design services and manufacturability reports
– Support for a wide range of materials and industries
– High-quality products with precision tolerance of ±0.05mm

Cons:
– Potential for tiny cracks on bend corners if the bending radius is too small
– Spring-back of the bends can be uncontrollable if the radius is too large
– Requires skilled labor for consistent welding quality and appearance

Bending

Product Details: Gensun Precision Machining offers high-quality sheet metal bending services, which involve transforming sheet metal into various shapes such as V-shapes, U-shapes, and channel shapes along a straight axis. The process utilizes equipment like brake presses and box-and-pan brakes, and techniques include air bending, bottoming, and coining. These services are cost-effective for producing low to medium quantities and result in lightweight parts with good mechanical properties. The services cater to various industries, including structural steel fabricators, public works contractors, equipment manufacturers, and shipbuilders.

Pros:
– Cost-effective for low to medium production quantities
– Produces lightweight parts with good mechanical properties
– Utilizes advanced equipment like brake presses and box-and-pan brakes
– Caters to a wide range of industries including structural steel, public works, a…

Cons:
– May have limitations in terms of bending radius and material thickness
– Different bending techniques have their own advantages and disadvantages, requir…
– Human-operated traditional press brakes may have more flexibility but could be l…

CNC Sheet Metal Bending

Product Details: CNC sheet metal bending at Komacut allows for the creation of a wide variety of part geometries without the need for custom tooling. The process can produce parts with multiple bends in different directions, making it suitable for creating complex shapes such as enclosures, brackets, and other parts. The bending techniques used include air bending and bottom bending, with air bending being utilized for its precision, speed, and high level of repeatability. Key factors to consider include the angle (any angle possible), radius (from 1.0 mm to 16.0 mm), and material considerations (some materials may crack at certain angles). Angular

tolerances are +/- 0.5 degrees, and XYZ tolerances for sheet bending are 0.30 mm[1].

Pros:
– Speed of manufacture: Automation and latest technologies enable large quantities…
– Accuracy: Bended sheet metal parts can be extremely accurate, especially with th…
– Less post processing: Products require little to no processing after bending, ot…
– Reduction in the number of parts: Components are made from one piece of material…

Cons:
– Material limitations: Some materials, such as aluminum 6061, may start to crack…
– Tooling requirements for specific bends: While air bending is versatile, bottom…

Sheet Metal Bending Services | China VMT

Air Bending and Bottom Bending Sheet Metal

Product Details: Air bending and bottom bending are two common methods used in sheet metal fabrication. Both methods utilize a press brake with a punch and a V-shaped bottom die. The key difference lies in the technique used to create the bend. Air bending involves pressing the material partially into the die, leaving a gap (or ‘air’) between the sheet metal and the bottom of the die. Bottom bending, on the other hand, involves pressing the material fully into the die to form the desired angle.

Pros:
– Air Bending: Faster process, less pressure required, able to bend most material…
– Bottom Bending: More accurate angles, less springback, ideal for parts requiring…

Cons:
– Air Bending: Greater level of inaccuracy, more springback, not suitable for part…
– Bottom Bending: Requires unique tools for different bend angles, more pressure n…

Sheet Metal Bending: Basics, Types, and Tips for Product …

Product Details: Sheet metal bending involves applying a force to a sheet metal part to change its geometry and physically deform without breaking. The process uses various machines, including press brakes, rotary bending tools, and roll bending equipment. Common methods include V-bending, air bending, bottoming, wipe bending, roll bending, and rotary draw bending. Each method employs different tools and techniques, such as punch and die mechanisms, to achieve specific bend angles and shapes.

Pros:
– Versatility: Suitable for various metal types and thicknesses.
– Reduced tool wear: Less contact with the die reduces wear and extends tool life.
– Flexibility: Allows for a wide range of bend angles with a single set of tools.
– Precise bend angle control: Methods like bottoming and rotary draw bending offer…
– Mechanical advantage: Wipe bending allows for less force to create desired bends…
– No surface scratching: Rotary draw bending does not scratch the metal’s surface.

Cons:
– Springback: Some methods experience partial recovery of the bent sheet metal to…
– Complex equipment: Wipe bending might require more complex equipment for creatin…
– Higher tonnage press: Bottoming requires a higher tonnage press than other metho…
– Limited applicability: Roll bending is more suitable for creating long, curved s…

An Engineers’ Guide to Sheet Metal Bending

Product Details: The guide on sheet metal bending from Komaspec outlines the main processes, advantages, and disadvantages of sheet metal bending. It covers various bending techniques such as air bending, bottom bending, and rolling. The guide also discusses basic design considerations, material selection, and the use of CNC press brakes for precision and efficiency.

Pros:
– Speed and efficiency: The process is fast and can create many parts in a short t…
– Accuracy: Modern CNC press brakes with precision tooling provide close bend tole…
– Repeatability: Advanced automation enables the creation of identical parts repea…
– Cost-effectiveness: Suitable for mass production and requires little additional…
– Versatility: Can be used to create a wide variety of shapes in sheet metal for v…
– High strength: Produces parts with excellent strength-to-weight ratios.
– Minimal post-processing: Bent parts are often ready to go straight from producti…
– Less weight: Achieves stiffness and strength without using additional material.
– Low cost and little-to-no tooling: Reduces manual labor and eliminates the need…

Cons:
– Thickness limitations: Tight bends are better performed on thinner sections of s…
– Production issues: Can cause indentations, scratches, or fractures, especially i…
– Noise and dust: The process can be noisy and generate metal shavings.
– Safety concerns: Can be dangerous if not done properly.
– Limitations by press bed size and material thickness capabilities.
– Grain orientation risks: Bending against the sheet metal grain can risk cracking…
– Spring back: The material’s elasticity causes some shape deviation that must be…

China Customized Bending Service Manufacturers …

Product Details: Starway Engineering & Manufacturing Co., Ltd. offers a sheet metal bending service as part of their sheet metal fabrication services. This service includes the use of mechanical, hydraulic, CNC, and manual bending machines to ensure precise and accurate bending of metal sheets. The process supports various types of metal, including aluminum and other materials. Lead times are typically 3 to 7 days, ensuring fast and reliable service.

Pros:
– Fast lead times of 3 to 7 days
– Use of advanced machinery such as CNC, mechanical, hydraulic, and manual bending…
– Support for various types of metal sheets

Cons:
– No specific details on minimum order quantities or potential limitations on comp…
– No information on cost or pricing structure available on the provided sources

air bending sheet metal Suppliers Manufacturers Factory in China

China Sheet Metal Bending Services Manufacturers …

Product Details: XYC-Prototype offers sheet metal bending services using CNC processing. They utilize a variety of industrial-grade materials to build functional parts. The services include CNC processing, sheet metal bending, 3D printing, and injection molding. This allows for the creation of complex and precise sheet metal components suitable for various industrial applications.

Pros:
– Utilizes the latest manufacturing technology to ensure high precision and accura…
– Offers a range of services including CNC processing, sheet metal bending, 3D pri…
– Uses industrial-grade materials to build functional parts.
– Suitable for various industrial applications such as automotive, medical, and co…

Cons:
– Limited information available on specific turnaround times and pricing.
– No detailed information on the range of materials available or specific certific…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Air Bending Sheet Metal Factories in China

What is air bending in sheet metal fabrication?

Air bending is a method of bending sheet metal where the punch does not make full contact with the die. Instead, it relies on the spring-back effect, allowing the metal to bend without being pressed into the full depth of the V-shaped die. This technique requires less tonnage and is widely used due to its efficiency and accuracy.

What are the advantages of air bending over other bending methods?

Air bending offers several advantages. It requires less weight and tonnage compared to other methods like bottom bending or coining, making it more energy-efficient. Additionally, air bending allows for greater control over the bend angle and reduces the risk of material distortion, ensuring more accurate and consistent results.

What types of industries use air bending services?

Air bending is utilized across various industries, including automotive, aerospace, construction, and consumer electronics. It is particularly useful for producing components such as roofing and siding for industrial buildings, HVAC ducts and ventilation systems, and electrical enclosures. The versatility of air bending makes it a valuable process in many manufacturing sectors.

How accurate is air bending, and what precision can I expect?

Air bending is highly accurate, with the capability to achieve bend angles within precise tolerances. The process can produce laser-cut holes with accuracy as tight as ±0.1mm, and the use of advanced CNC bending machines ensures low levels of variability. This makes air bending ideal for applications requiring high precision and repeatability.

What kind of equipment is typically used for air bending in Chinese factories?

Chinese factories typically use advanced equipment such as brake presses and box-and-pan brakes for air bending. These machines are often equipped with CNC technology, allowing for automated and precise bending operations. Additionally, specialized machine presses and modern manufacturing facilities ensure efficient and high-quality production of bent sheet metal parts.