Floor Spring S280

  • Floor Spring S280
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Product Description

Floor Spring S280 Product Description

Floor Spring S280 is a heavy duty floor spring designed for large door systems and high load applications. This high load floor spring supports door widths up to 1400mm and door weights up to 300kg, making it suitable for oversized glass doors, heavy commercial entrances, and demanding architectural projects.

For contractors, engineers, and project planners looking for a reliable floor spring for heavy door applications, S280 provides a durable and stable solution for high-frequency use environments. It is widely used as a floor spring for large commercial entrance, an industrial heavy duty floor spring, and a high load floor spring for glass door system in shopping malls, hotels, public buildings, and infrastructure projects.

Key Features of Floor Spring S280

  • Designed as a heavy duty floor spring for high-load applications
  • Supports up to 300kg door weight and 1400mm door width
  • Maximum opening angle up to 180°
  • Mechanical backcheck function for enhanced safety and durability
  • Independent adjustment of closing speed and latching speed
  • Stable operation in high-frequency commercial environments
  • Suitable for heavy glass doors and large entrance systems

Application Scenarios

  • Shopping mall glass doors and large storefront entrances
  • Hotel main entrances and public building doors
  • Heavy industrial doors and high-load commercial applications
  • Fire door systems requiring high load capacity

If you are comparing different door control systems, you may also review our Floor Spring Series, Transom Closer Series, and Floor Spring Accessories to select the right solution based on door weight and application requirements.

Why Choose CHIEN CHIN as Your Floor Spring Manufacturer?

  • ✔ Over 30 years of heavy-duty door hardware manufacturing experience
  • ✔ Specialized in high load floor spring solutions
  • ✔ OEM / ODM customization for commercial projects
  • ✔ Stable production capacity for large-scale procurement
Product Feature

Floor Spring S280 Features

Floor Spring S280 is a heavy duty floor spring engineered for large door bodies and high-load applications. As a high load floor spring, it is designed for projects requiring strong load-bearing performance and long-term durability in commercial and industrial environments.

300kg High Load Capacity

A high load floor spring capable of supporting doors up to 300kg, suitable for large commercial entrances and heavy-duty applications.

Wide Door Compatibility

Supports door widths up to 1400mm, ideal as a floor spring for heavy glass door 150kg and beyond.

Industrial-Level Performance

Designed as an industrial heavy duty floor spring for long-term high-frequency usage.

Mechanical Backcheck

Improves safety by controlling door opening force and reducing impact.

Adjustable Closing Control

Allows precise adjustment of closing speed and latching speed for different door conditions.

Recommended Applications

S280 is commonly used as a floor spring for shopping mall glass door, a floor spring for large commercial entrance, and a floor spring for heavy door in public infrastructure and high-load engineering projects.

For project teams looking for a reliable heavy duty floor spring and high load floor spring, S280 provides a practical solution for large-scale commercial and industrial door systems.

Product Specification

Floor Spring S280 Specifications

Below are the main specifications of Floor Spring S280 for buyers, contractors, architects, and project planners to evaluate door size, load requirement, and installation conditions. As a heavy duty floor spring and high load floor spring, S280 is designed for oversized doors, high-frequency use, and demanding commercial or industrial projects. If you would like to compare more door control products, please also review our Floor Spring Series, Transom Closer Series, and Wooden Door Closer Series.

Item Specification
Model S280
Product Type Floor Spring / Heavy Duty Floor Spring / High Load Floor Spring
Applicable Door Type Single-action offset doors / Double-action center-hung doors
Max. Door Width 1400mm
Max. Door Weight 300kg
Max. Opening Angle 180°
Fire Door Applicability Non-hold-open function available for fire doors
Closing Speed Adjustment Range 180° ~ 20°
Latching Speed Adjustment Range 20° ~ 0°
Backcheck Function Mechanical backcheck function
Closing Power Size Fixed
Cement Box Size (mm) L341 x W78 x H60
Inner Adjustable Space of Cement Box (mm) L6 x W6
Cover Plate Size (mm) L358 x W105 x T1.5

Closing Force, Applicable Door Width and Door Weight

Item EN4 EN6
Applicable Door Width (mm) 950~1100 1200~1400
Applicable Door Weight (kg) 150~200 200~300

If your project requires comparison of different door control hardware types, installation conditions, or related accessories, you may also review our Floor Spring Series, Floor Spring Accessories, and Transom Closer Series for complete door hardware planning.

How to Choose the Right Floor Spring?

When selecting a floor spring, we recommend evaluating the application, door weight, door width, and whether the project requires a floor spring for heavy door or a high load floor spring. The comparison below helps buyers, contractors, and specifiers quickly understand the differences between each model.

Model Type Recommended Application Main Advantage
S200 Fixed Type General commercial spaces, offices Standard floor spring, entry-level solution
Exchangeable S200 Exchangeable Type Replacement projects, maintenance applications Only the body needs replacement for easier maintenance
S220 Fixed Type General commercial spaces, offices, storefront doors Stable and durable standard specification
Exchangeable S221 Exchangeable Type Commercial spaces, offices, storefront doors Replaceable design for easier long-term maintenance
S275 Heavy Duty Slim Narrower spaces, heavier doors, fire doors Slim + High Load + Mechanical Backcheck
S280 Heavy Duty Large doors, high-load projects, fire-rated doors Max. 300kg, ideal for heavy-duty engineering projects

Advantages of Heavy Duty Floor Spring Design

S280 features a maximum load capacity of 300kg, making it suitable for oversized door leaves, high-frequency commercial entrances, and heavy engineering applications. As a floor spring for large commercial entrance, an industrial heavy duty floor spring, and a high load floor spring for glass door system, it is a practical choice for shopping malls, hotels, public buildings, and selected fire door projects.

Floor Spring S280 FAQ

Q1: What is the maximum door weight supported by Floor Spring S280?
Floor Spring S280 supports a maximum door weight of 300kg and a maximum applicable door width of 1400mm, making it suitable for oversized commercial doors, large entrances, and heavy-duty architectural projects.
Q2: What types of doors is Floor Spring S280 suitable for?
Floor Spring S280 is suitable for single-action offset doors and double-action center-hung doors. It is commonly used as a floor spring for heavy door systems in shopping malls, hotels, public buildings, and large commercial entrances.
Q3: Can Floor Spring S280 be used for heavy glass doors?
Yes. Depending on the door structure and installation condition, Floor Spring S280 can be used as a floor spring for heavy glass door 150kg and above, especially in commercial and public building projects.
Q4: Is Floor Spring S280 suitable for shopping mall glass doors?
Yes. Floor Spring S280 is often selected as a floor spring for shopping mall glass door and a floor spring for large commercial entrance because of its high load capacity, wide door compatibility, and stable long-term performance.
Q5: Is the closing speed of Floor Spring S280 adjustable?
Yes. The closing speed adjustment range for Floor Spring S280 is 180° ~ 20°, and the latching speed adjustment range is 20° ~ 0°. This can be adjusted according to door weight, usage frequency, and site conditions.
Q6: When should I choose a heavy duty floor spring like Floor Spring S280?
If the project involves oversized doors, high traffic entrances, or requires an industrial heavy duty floor spring and high load floor spring for glass door system, Floor Spring S280 is often the preferred choice.

Need a Floor Spring Quote or Product Recommendation?

If you are looking for a heavy duty floor spring manufacturer, a reliable floor spring supplier, or an OEM / ODM commercial door hardware partner, CHIEN CHIN can recommend the right solution based on door type, door weight, installation conditions, and project requirements.

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