The DORMA BTS 84 EN4 floor spring is a double action, compact and resistant hydraulic spring. Designed specially for the aluminium and toughened glass door industries. Includes cement box.
The BTS 84 has many of the features of the other DORMA BTS closers with the addition of reduced depth with an array of complimentary accessories.
This model is hold-open at 90°.
No mechanical backcheck.
Suitable for installation on doors up to 1100mm (W) with a max. 100kg leaf weight.
For applications involving particularly high or heavy doors, and doors which close against the wind or draught conditions, the larger DORMA BTS 80 should be selected.
Extended spindles - Refer FAQ
| Dimensions | Weight (approx.) |
| 306mm (L) x 108mm (W) x 40mm (H) | 5.0kg |