BTS84 [EN4] Floorspring Body and Box

The dormakaba BTS84 [EN4] Floor Spring Body and Box is a universal, non-handed floor spring designed for single and double-action doors. It conforms to EN1154 standards and is suitable for doors weighing up to 120kg and measuring up to 1100mm wide. Featuring adjustable spring strength (EN sizes 1–4), backcheck, and closing speeds, it ensures smooth and controlled door operation. This reliable and durable floor spring is perfect for commercial and residential applications.

Features & Benefits

Features:

• Adjustable spring strength (EN sizes 1–4) for customized operation
• Designed for single and double-action doors
• Mechanical backcheck for controlled opening
• Adjustable closing speed with separate sweep (175°–15°) and latching (15°–0°) controls
• Conforms to EN1154 standards for performance and reliability
• Non-handed design, suitable for left-hand and right-hand doors
• Includes cement case for secure installation

Benefits:

• Enhanced Control: Smooth and precise door operation with adjustable speed and strength
• Versatile Application: Compatible with single and double-action doors in commercial or residential settings
• Durability: High-quality cast iron construction ensures long-lasting performance
• Convenient Installation: Non-handed design simplifies setup for left or right-handed doors
• Complies with Standards: Tested to EN1154 for quality and safety

Applications:

• Commercial spaces like offices, retail stores, and public buildings
• Residential doors requiring durable and adjustable floor spring closers

Specifications

• • Brand: dormakaba
  • Spring Strength: EN sizes 1–4 (20kg to 120kg)
  • Max Door Dimensions: Width – 1100mm, Weight – 120kg
  • Material: Cast iron
  • Finish/Colour: Silver (SIL)
  • Max Opening Angle: 175°
  • Back Check Valve: Yes
  • Hold Open Function: No
  • Single/Double Action: Suitable for both
  • Warranty: 10 years mechanical
  • Dimensions: 285mm (L) x 82mm (W) x 50mm (H)
  • Minimum Door Thickness: 32mm