Leaving nothing to chance

Safety is standard with TWIN – We provide four levels of safety to prevent two TWIN cabs in the same shaft from getting too close to each other.

Intelligent allocation of calls

Requests are always distributed by the destination selection control so elevator cabins do not obstruct each other and a minimum distance is always observed.

Monitoring of minimum safety distances

The minimum separation of the cabins is monitored automatically to ensure the cabins are kept at a safe distance.

Emergency stop function

If the safety distance is breached, the system shuts down the drives, activates the brakes and triggers an emergency stop for both elevator cabins.

Automatic engagement of the safety gear

In the unlikely event that the first three safety stages fail, the safety gears of both the elevator cabins are activated. It is not possible for the elevator cabins to make contact.

Approved safety

TWIN is in compliance with ASME A17.7/CSA B44.7; A17.7 specifically intended for new elevator technology and practices.

Safety levels 3 and 4 are monitored by an independent control system according to EN81-20/50 PESSRAL – giving TWIN the highest safety classification: Safety Integrity Level 3 (SIL3).

CE Type certified.

System satisfies the regulations in accordance with elevator directive 2014/33/EU and EN 81-20/50 (EU Type examination safety components) and approved code deviations (by TWIN EU design examination).

Fully certified by the German TÜV inspectorate – the most stringent and rigorous safety standard an elevator can attain.