D&D BUILDERS HARDWARE CO. - D&D Builders Hardware Co. is a door closer and hardware manufacturer in Taiwan, produces hardware for doors and windows.

Springs | Your Trusted Source for Electromagnetic Locks & Access Control Systems | D&D Builders Hardware Co.

We specialize in crafting springs of any power duty, torque, material, type, size, extension and wire diameter, offering a tailored approach to meet your specific requirements. Whether you need springs designed for heavy-duty industrial applications or precision springs for delicate mechanisms, our expertise allows us to produce a wide diversity of springs to suit diverse needs. Feel free to share your drawings or samples with us, we will evaluate and get you back as soon as possible. D&D is a Taiwan high-quality hardware manufacturer of Springs, SLIDE back Sliding Door Closer, Self-Closing Door Closer, Deadlock, Exit Device, Glass Fitting, Deadlatche, Electromagnetic Lock, Floor Spring, Panic Device, Panic Bar, Deadbolt since 2002. We have extensive and rich metal processing, plastic and rubber processing experience, such as: stamping, casting, die casting, forging, extrusion, CNC turning parts, Machining parts, plastic injection, rubber compression, transfer molding and injection molding. With more than 20 years experience, D&D is specialized in handling OEM projects and various industrial processes, such as designing, molding, plastic injection, rubber injection, metal machining, stamping, deep drawing pressing, forging, die casting, powder metallurgy, CNC machining and related fabrications.

Coil spring | Premium Glass Fittings & Panic Devices for Global OEM Buyers | D&D Builders Hardware Co.

Coil Spring | D&D Builders Hardware Co. located in Taiwan, is a professional custom hardware manufacturer with rich experience in producing the OEM/ODM door and window hardware, building hardware and automotive parts according to customers' individual needs and designs.

Coil Spring

Springs

Coil spring

We specialize in crafting springs of any power duty, torque, material, type, size, extension and wire diameter, offering a tailored approach to meet your specific requirements. Whether you need springs designed for heavy-duty industrial applications or precision springs for delicate mechanisms, our expertise allows us to produce a wide diversity of springs to suit diverse needs. Feel free to share your drawings or samples with us, we will evaluate and get you back as soon as possible.

There are several types of springs, each designed for specific applications based on their unique characteristics and functionalities:

Compression Springs
Features: These springs are designed to absorb and store energy when subjected to a compressive force. They provide resistance to being compressed and return to their original shape when the force is removed.
Applications: Automotive, industrial machinery, electronics, and more.

Extension Springs
Features: Extension springs are designed to resist stretching and store energy when pulled apart. They exert a pulling force when extended and return to their original length when the force is released.
Applications: Garage doors, trampolines, door hinges, and various industrial equipment.

Torsion Springs
Features: Torsion springs are designed to withstand rotational or twisting motion. They store mechanical energy when twisted and exert rotational force.
Applications: Garage doors, clipboards, clothespins, and various machinery.

Coil Springs
Features: Coil springs refer to springs formed by winding wire into a cylindrical shape. They can include compression, extension, or torsion springs based on their design and function.
Applications: Automotive suspensions, shock absorbers, mattresses, and more.

Flat Springs
Features: Flat springs have a flat, typically thin, profile and can store energy when bent or deflected. They provide flexibility and are often used in limited space applications.
Applications: Watches, electrical contacts, automotive components, and appliances.


Springs | Durable Floor Springs & Deadlocks Designed for Excellence | D&D Builders Hardware Co.

Based in Taiwan since 2002, D&D BUILDERS HARDWARE CO. has been a door closers and door accessories manufacturer. Our main self sliding and glass door hardware, include SLIDEback Sliding Door Closers, Self-Closing Door Closers, Deadlocks, Exit Devices, Glass Fittings, Deadlatches, Electromagnetic Locks, Glass and Wooden Door Floor Springs, Panic Devices, Panic Bars and Deadbolts, which are TÜV Rheinland & UL certified.

We have extensive and rich metal processing, plastic and rubber processing experience, such as: stamping, casting, die casting, forging, extrusion, CNC turning parts, Machining parts, plastic injection, rubber compression, transfer molding and injection molding. With more than 20 years experience, D&D is specialized in handling OEM projects and various industrial processes, such as designing, molding, plastic injection, rubber injection, metal machining, stamping, deep drawing pressing, forging, die casting, powder metallurgy, CNC machining and related fabrications.

D&D has been offering customers high-quality door closer hardware, both with advanced technology and over 20 years of experience, D&D ensures each customer's demands are met.