SKU: 328708
DORMA BTS80 Floor Spring Size 4 - Hold Open
3.0
(3)
27 in stock
Heavy duty floor spring
Buy in bulk & save up to 5%
About this product
- Heavy duty floor spring
- Power size 4
- Interior and exterior doors up to 1100mm or 300kg max
- Backcheck - Ideal for high traffic doors as it offers resistance when the door is opened with excessive force, preventing damage to doors
- Delayed action - Ideal for care homes and hospitals as this feature slows down the closing speed of the door
- Dual handed for push or pull side mounting
- Hold open floor springs should not be used on fire doors
Specification & Documentation
Action
Single/Double
Hold Open Function
Yes
Max Door Weight (kg)
300
Max Door Width (mm)
1100
Option
Hold Open
Power Size
EN 4
Size (mm)
341 x 78 x 60
Type
Floor Spring
Range
BTS75/BTS80
Material
Mild Steel
About this product
- Heavy duty floor spring
- Power size 4
- Interior and exterior doors up to 1100mm or 300kg max
- Backcheck - Ideal for high traffic doors as it offers resistance when the door is opened with excessive force, preventing damage to doors
- Delayed action - Ideal for care homes and hospitals as this feature slows down the closing speed of the door
- Dual handed for push or pull side mounting
- Hold open floor springs should not be used on fire doors
Specification & Documentation
Action
Single/Double
Hold Open Function
Yes
Max Door Weight (kg)
300
Max Door Width (mm)
1100
Option
Hold Open
Power Size
EN 4
Size (mm)
341 x 78 x 60
Type
Floor Spring
Range
BTS75/BTS80
Material
Mild Steel
About this product
- Accessory packs for the DORMA BTS75 and BTS85 Floor Springs
- All pivots, fixings and cover plates for single action doors
- Finish is the floor cover plate finish
Specification & Documentation
Action
Single Action
Finish
Satin Stainless Steel
Option
To suit BTS80
Type
Accessory Pack
Range
BTS75/BTS80
Material
Mild Steel
About this product
- Accessory packs for the DORMA BTS75 and BTS85 Floor Springs
- All pivots, fixings and cover plates for single action doors
- Finish is the floor cover plate finish
Specification & Documentation
Action
Single Action
Finish
Satin Stainless Steel
Option
To suit BTS80
Type
Accessory Pack
Range
BTS75/BTS80
Material
Mild Steel
About this product
- A range of interchangeable spindles to provide floor clearance in a variety of situations (doors with thresholds, carpeted floors, etc.)
- Standard DORMA spindle on BTS75 and BTS80 will give 8mm clearance
- Spindles are shown in 'Extended By' sizes - therefore a 5mm extension will give 13mm clearance (8mm 5mm)
Specification & Documentation
Action
Single/Double
Size (mm)
10
Type
Spindle Extension
Range
BTS75/BTS80
Material
Mild Steel
Documents
About this product
- A range of interchangeable spindles to provide floor clearance in a variety of situations (doors with thresholds, carpeted floors, etc.)
- Standard DORMA spindle on BTS75 and BTS80 will give 8mm clearance
- Spindles are shown in 'Extended By' sizes - therefore a 5mm extension will give 13mm clearance (8mm 5mm)
Specification & Documentation
Action
Single/Double
Size (mm)
10
Type
Spindle Extension
Range
BTS75/BTS80
Material
Mild Steel
Documents
About this product
- A range of interchangeable spindles to provide floor clearance in a variety of situations (doors with thresholds, carpeted floors, etc.)
- Standard DORMA spindle on BTS75 and BTS80 will give 8mm clearance
- Spindles are shown in 'Extended By' sizes - therefore a 5mm extension will give 13mm clearance (8mm 5mm)
Specification & Documentation
Action
Single/Double
Size (mm)
7.5
Type
Spindle Extension
Range
BTS75/BTS80
Material
Mild Steel
Documents
About this product
- A range of interchangeable spindles to provide floor clearance in a variety of situations (doors with thresholds, carpeted floors, etc.)
- Standard DORMA spindle on BTS75 and BTS80 will give 8mm clearance
- Spindles are shown in 'Extended By' sizes - therefore a 5mm extension will give 13mm clearance (8mm 5mm)
Specification & Documentation
Action
Single/Double
Size (mm)
7.5
Type
Spindle Extension
Range
BTS75/BTS80
Material
Mild Steel
Documents
About this product
- Accessory packs for the DORMA BTS75 and BTS85 Floor Springs
- All pivots, fixings and cover plates for single action doors
- Finish is the floor cover plate finish
Specification & Documentation
Action
Single Action
Finish
Polished Brass
Option
To suit BTS80
Type
Accessory Pack
Range
BTS75/BTS80
Material
Mild Steel
About this product
- Accessory packs for the DORMA BTS75 and BTS85 Floor Springs
- All pivots, fixings and cover plates for single action doors
- Finish is the floor cover plate finish
Specification & Documentation
Action
Single Action
Finish
Polished Brass
Option
To suit BTS80
Type
Accessory Pack
Range
BTS75/BTS80
Material
Mild Steel
About this product
- Heavy duty floor spring
- Power size 4
- Interior and exterior doors up to 1100mm or 300kg max
- Backcheck - Ideal for high traffic doors as it offers resistance when the door is opened with excessive force, preventing damage to doors
- Delayed action - Ideal for care homes and hospitals as this feature slows down the closing speed of the door
- Dual handed for push or pull side mounting
- Hold open floor springs should not be used on fire doors
About this product
- Heavy duty floor spring
- Power size 4
- Interior and exterior doors up to 1100mm or 300kg max
- Backcheck - Ideal for high traffic doors as it offers resistance when the door is opened with excessive force, preventing damage to doors
- Delayed action - Ideal for care homes and hospitals as this feature slows down the closing speed of the door
- Dual handed for push or pull side mounting
- Hold open floor springs should not be used on fire doors
Specification & Documentation
Action
Single/Double
Hold Open Function
Yes
Max Door Weight (kg)
300
Max Door Width (mm)
1100
Option
Hold Open
Power Size
EN 4
Size (mm)
341 x 78 x 60
Type
Floor Spring
Range
BTS75/BTS80
Material
Mild Steel
Reviews
Sort by:
These reviews are verified by an independent third party for authenticity.
Dziedzic - 5 years ago
Great floor spring mechanism
After fitting this Dorma spring our client was more than happy with the finished operation of this device.
Was this review helpful?
Verified customer
Page 1 of 1
Questions