Tube Bending Services

Our tube manufacturing services include everything from bending and fabrication to design, production, finishing, and packaging. We offer full-service manufacturing and can do welding, piercing, slotting, and other secondary operations in-house.

Overview of Tube Bending

Tube bending consists of a series of manufacturing processes that alter the shape of a pipe or tube to create the desired geometry or features that meet specific requirements. In the process, tube stock is loaded into a bending machine which uses mechanical forces to push the tube against dies and rollers that cause the tube to conform to a shape. Tubes can be bent two-dimensionally where the openings remain on the same plane or in three dimensions where they sit on different planes.

Sungrow offers a full suite of custom tube bending services for your application. Our tube bending services are primarily accomplished with the help of rotary benders – two CNC, one NC & one Hydraulic Wire Bending Machine – which improve tube bending speeds, costs, and quality.

Rotary draw benders are known for their high-precision capabilities. This style of bending gives us maximum control over wall thinning and ovality distortions that naturally occur during the bending process. Mandrels inserted in the tubes and tooling on the outside also contribute to a higher quality finished product.

Whether you are looking for standard rotary draw tube bending or highly precise mandrel tube bending, Sungrow offers different processes to meet your requirements for tube fabrication services in both low and high volumes. Sungrow also offers laser tube cutting services for parts that include cut features such as holes, slots, and more.

Tube bending services include:

·Rotary Draw Bending
·Mandrel Tube Bending
·Compression Bending
·Roll Bending

Tube Bending Material Options

Tube and Pipe Materials
Material	Round Tube	Pipe	Rectangular Tube	Square Tube
Aluminum	Aluminum 6061 Aluminum 6063 Aluminum 2024	Aluminum 6061 Aluminum 6063 Aluminum 6101	Aluminum 6061 Aluminum 6063	·Aluminum 6061 * ·Aluminum 6063 *
Steel	Alloy Steel 4130 Cold Roll Steel A513	Mild Steel A500	Mild Steel A500 Mild Steel A513	Mild Steel A500 Mild Steel A513
Stainless Steel	Stainless Steel 304 Stainless Steel 316	Stainless Steel 304 Stainless Steel 316	Stainless Steel 304 Stainless Steel 316	Stainless Steel 304 Stainless Steel 316
Brass	General Purpose Brass Tubing**	Brass 230	Brass 272 Brass 385	Brass 272 Brass 385
Copper	Copper 101 Copper 122
Titanium	Titanium Grade 2

* Also available in rounded corner variant.
* General purpose round tubing may include any of the following brass alloys: 260,270,272,330.
For other materials not shown here, contact us directly for personalized assistance and recommendations.

In terms of pipe geometry or profile, the round tube is the most common shape that is bent due to its superior structural strength compared to other profiles. Different shapes (rectangular, square, etc.) can be bent, but care must be given to avoid pipe wall collapse.

Tube Bending Requirements

Sungrow can support a wide variety of bend requirements. Certain parameters are helpful when building a quote, including the following specifications:

·Center-Line Radius (CLR)
·Bend radii
·Tube profile (round, square, etc.)
·Tube wall thickness
·Tube diameter (based on schedule or wall thickness)
·Type of bend ('L bend', 'U bend', 'S bend', 'Coil bend', or a combination of bends)
·Project volume (can handle thousands of pieces)

Tube and Pipe End Finishing Services

Sungrow offers finishing options for tube and pipe ends to address all of your product needs. Among the options available are the following:

·Reducing or expanding end sizes
·Beveling
·Chamfering
·Facing
·Flanging
·Flaring
·Flattening
·Swaging
·Reaming
·Bead creation
·Roll Grooving

End finishing can improve the overall quality of the product, help assure tight tolerance fitment, and generally reduce the time needed for installation or set-up of the end product. Sungrow also offers a bead blast surface finishing option, which can provide a bright peened exterior surface or prepare the tube for other surface finishing operations.

Send us your 3D CAD model to sales1@sungrowsn.com and we will provide you with a free quote.

Our project managers and experts personally review and manually quote each tube bending project to ensure we meet your unique needs while providing a fast and easy manufacturing experience. Review our capabilities in the sections below to learn more about the different tube bending machines and techniques.