Industrial Door Springs
We produce customized industrial door springs with wire diameters 3mm–12mm, outer diameters 30mm–120mm, and free length 500mm–3000mm. Two main types are available: torsion type and extension type. Material selection and structural design are adjusted according to door weight and size to guarantee matching load bearing for each industrial door springs.
Specialized Product Advantages
Custom fit for door bodies
Designed exclusively based on door weight, dimensions and lifting modes to match spring force and door weight precisely.
Strong load capacity
Thick high-strength spring steel withstands heavy door weight and frequent opening & closing fatigue loads.
Long service life
Premium spring steel with strict heat treatment delivers outstanding anti-fatigue performance for daily repeated use.
Complete product types
Torsion and extension variants cover all mainstream industrial door structures.
Materials & Surface Treatment
High-strength carbon steel (65Mn/82B) and alloy spring steel (60Si2Mn/55CrSi) are optional. Surface anti-rust treatments include plastic coating, electrophoresis and black oxide plus anti-rust coating for outdoor factory environments.
Application Fields
Mainly used for industrial lifting doors, rolling shutters, sliding industrial doors, garage doors, high-speed doors and factory large gates.
Rich Industry Application Experience
Baoding Zhongxin Spring Manufacturing Co., Ltd. accumulates abundant production and application experience for industrial door springs, cooperating with dozens of industrial door manufacturers and installation enterprises. We master spring configuration standards for all door types and can quickly provide matching schemes according to door parameters. Our design fully considers door weight, balance ratio, lifting height and daily usage frequency to achieve reasonable spring selection and stable performance. Deep industry insight helps us accurately capture client demands and deliver perfectly matched products.
Product Parameter Table
|
Parameter Item |
Value / Range |
|
Wire Diameter Range |
3 mm ~ 12 mm |
|
Outer Diameter Range |
30 mm ~ 120 mm |
|
Free Length |
500 mm ~ 3000 mm (Customizable) |
|
Spring Types |
Torsion Type / Extension Type (Special for lifting doors & rolling shutters) |
|
Optional Materials |
Carbon Spring Steel (65Mn / 82B), Alloy Spring Steel (60Si2Mn / 55CrSi) |
|
Surface Treatment |
Plastic Coating / Electrophoresis / Black Oxide + Anti-rust Treatment |
|
Customization Mode |
Custom design per door weight, size and lifting mode |
|
Application Scenarios |
Industrial lifting doors, rolling shutters, sliding doors, garage doors, high-speed doors, factory large gates |
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