Extended Double Action Arm for Glass Door Floor Spring System (280-CA)

  • Double Action Arm Lengthen 280-CA
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Product Description

Double Action Arm Lengthen 280-CA

Double Action Arm Lengthen 280-CA is an extended floor spring accessory developed for replacement, maintenance, and project support where a dependable double action arm is required. For buyers searching for a floor spring arm, lengthen floor spring arm, or door control hardware accessory, this model provides a stable and practical solution for larger commercial door hardware systems.

As an extended double action arm for glass door and floor spring applications, 280-CA is suitable for repair work, replacement projects, and ongoing hardware maintenance. It is especially relevant for distributors, contractors, and importers who need a long floor spring arm for commercial entrance systems, heavy doors, and large-format glass door installations in office buildings, retail projects, and public access environments.

Compared with replacing a complete floor spring body, changing an extended floor spring arm can be a more efficient and cost-effective maintenance option when the main system remains serviceable. This makes Double Action Arm Lengthen 280-CA a suitable choice for buyers looking for a glass door floor spring accessory, heavy duty floor spring arm, and long-term spare parts supply support for B2B projects, wholesale demand, and container-based procurement.

Product Highlights

  • Designed as an extended double action arm for floor spring systems
  • Suitable for replacement, repair, and maintenance applications
  • Supports glass door, heavy door, and commercial entrance hardware service needs
  • Useful for long-term spare parts supply planning
  • Suitable for OEM / ODM and bulk order inquiries

If you are comparing different hardware types, you may also view our Floor Spring Accessories, Floor Spring Series, Glass Door Applications, and Product Overview for broader door control hardware selection.

Why Choose CHIEN CHIN for Floor Spring Accessories?

  • ✔ More than 30 years of door control hardware manufacturing experience
  • ✔ Specialized in transom closers, floor springs, wooden door closers, and accessories
  • ✔ Supports OEM / ODM cooperation and project-based supply
  • ✔ Suitable for distributors, contractors, and overseas buyers
  • ✔ Stable supply support for replacement parts and maintenance demand

If you are looking for an extended double action arm manufacturer, floor spring accessory supplier, or long floor spring arm factory, CHIEN CHIN can provide suitable product recommendations based on installation type, replacement needs, and project requirements. You are also welcome to learn more on our About Us page.

Product Feature

Double Action Arm Lengthen 280-CA Features

Double Action Arm Lengthen 280-CA is developed for buyers who need a dependable double action arm, long floor spring arm, and floor spring accessory for replacement, project installation, and spare parts sourcing. It is suitable for maintenance work and commercial door hardware supply where extended reach, practical installation, and consistent supply are important.

Extended Floor Spring Arm Design

Designed as a lengthen floor spring arm for compatible floor spring systems, making it relevant for buyers searching for an extended replacement accessory.

Suitable for Heavy Duty Replacement Use

A practical option for replacing worn or damaged arms in systems where a heavy duty floor spring arm or longer arm structure is preferred.

Supports Maintenance Demand

Suitable for maintenance teams, contractors, and distributors who need regular access to floor spring accessory parts and extended spare arms.

Commercial Door Hardware Use

Can be considered for commercial door hardware projects involving glass door floor spring accessory systems in larger entrances, retail sites, and public spaces.

Technical Drawing Reference

Supplied with a technical drawing reference to help buyers and project teams confirm installation structure and dimensions.

OEM / ODM Supply Available

Suitable for bulk order, project sourcing, and OEM / ODM cooperation for door control hardware accessory supply.

Recommended Applications

Double Action Arm Lengthen 280-CA is suitable for buyers looking for an extended double action arm for glass door, a long floor spring arm for commercial entrance, and replacement accessories for floor spring systems. It can be considered for maintenance of large glass doors, office doors, and other commercial entrance applications using compatible floor spring hardware.

For importers, distributors, project contractors, and hardware service teams, Double Action Arm Lengthen 280-CA is a useful option when sourcing an extended floor spring arm, double action arm, and long-term accessory supply for B2B projects.

Product Specification

Double Action Arm Lengthen 280-CA Specifications

Below is the available specification reference for Double Action Arm Lengthen 280-CA. This product is mainly supplied as a floor spring accessory, double action arm, and long floor spring arm for replacement and maintenance use. Buyers may use the technical drawing below to review structure and installation dimensions. For additional product comparison, you may also visit our Floor Spring Accessories, Floor Spring Series, and Product Overview.

Double Action Arm Lengthen 280-CA technical drawing
Item Specification
Model 280-CA
Product Name Double Action Arm Lengthen
Product Type Floor Spring Accessory / Double Action Arm / Extended Floor Spring Arm
Application For floor spring repair, replacement, and maintenance use
Suitable Door Type Glass door / commercial entrance / large door system applications
Technical Drawing Please refer to the dimensional illustration shown above
Supply Type Replacement part / Spare part / OEM / ODM inquiry available

Dimensional Reference

Item Reference Dimensions Description
Overall Length 235 mm Main body length shown in the technical drawing.
Body Width 24 mm Suitable as a field reference for maintenance measurement and accessory comparison.
Upper Section Height 20 mm Please confirm according to the technical drawing and actual installation position.
Lower Step Height 11 mm Please use the actual drawing and installation conditions as the final reference.
Hole / Position Spacing 67 / 52 / 52 / 52 mm It is recommended to cross-check all accessory dimensions before ordering.
Front Section Reference 35 mm Front-side reference dimension shown in the drawing.
Unit mm All dimensions should be confirmed with actual installation conditions.

If your project requires comparison with different types of door control hardware, replacement accessories, or other installation configurations, you may also explore our Floor Spring Accessories, Floor Spring Series, Glass Door Applications, and Applications for more complete project planning.

Application and Selection Notes

Item Description
Common Buyer Searches double action arm, floor spring arm, floor spring accessory, double action arm for glass door, standard floor spring arm, floor spring arm for commercial entrance, glass door floor spring accessory, door control hardware accessory, extended double action arm, long floor spring arm, lengthen floor spring arm, extended floor spring arm for glass door, long arm for commercial entrance door, extended double action arm for heavy door, floor spring arm for large door system, heavy duty floor spring arm
Suitable Buyers distributors, importers, contractors, hardware wholesalers, and project maintenance buyers
Main Use Scenario replacement or maintenance of extended floor spring arm assemblies in commercial door systems
Selection Advice Buyers should confirm matching floor spring model, installation structure, door size, and technical drawing details before ordering replacement parts.

Selection Tips for Extended Floor Spring Arm Replacement

If the floor spring arm shows wear, looseness, deformation, or abnormal door movement during opening and closing, buyers are advised to confirm the original model number, installation structure, door size, and actual application conditions before purchasing a replacement accessory. If the complete system has already been in service for a long period, it may also be practical to evaluate the Floor Spring Series together with related accessories for a more complete replacement plan.

Double Action Arm Lengthen 280-CA FAQ

Q1: What is Double Action Arm Lengthen 280-CA used for?
Double Action Arm Lengthen 280-CA is used as a floor spring accessory for repair, replacement, and maintenance applications. It is suitable for buyers looking for an extended double action arm, long floor spring arm, or glass door floor spring accessory for commercial door systems.
Q2: Is 280-CA suitable as a replacement extended floor spring arm?
Yes. 280-CA can be used as a replacement extended floor spring arm for suitable floor spring systems, especially in maintenance and spare parts sourcing situations. Buyers should still confirm model compatibility, door structure, and drawing details before ordering.
Q3: What types of doors can use an extended double action arm for glass door systems?
An extended double action arm for glass door applications is commonly considered for large glass doors, office entrances, retail entrances, and other commercial entrance systems that use compatible floor spring hardware.
Q4: Who usually buys Double Action Arm Lengthen 280-CA?
Typical buyers include importers, distributors, contractors, hardware wholesalers, and maintenance teams that need floor spring accessories, door control hardware accessories, and spare parts for commercial door projects.
Q5: Can 280-CA be supplied for OEM / ODM or bulk orders?
Yes. CHIEN CHIN supports OEM / ODM cooperation and bulk order inquiries for double action arms, floor spring accessories, and related door control hardware products for project and export markets.
Q6: How should buyers confirm the correct extended floor spring arm replacement?
Buyers should check the matching floor spring model, installation structure, actual door application, and technical drawing dimensions before placing an order. This helps ensure the selected lengthen floor spring arm matches the real project requirement.

Looking for an Extended Double Action Arm Supplier?

If you are looking for an extended double action arm manufacturer, floor spring accessory supplier, or door control hardware accessory OEM / ODM partner, welcome to contact us. CHIEN CHIN can recommend suitable products based on installation type, replacement needs, and project requirements.

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