In addition to gearless elevator machines, ZIEHL-ABEGG also offers various drive systems with gearboxes, which are especially suited for the use of traction sheaves with large diameters. The drive systems are designed for payloads of 400 to 3.000 kg and traveling speeds of up to 2.5 m/s, with a maximum traction sheave diameter of 800 mm.
The ZAtop, ZAtopx, ZAdisc and ZAsyn series are each equipped with a type-tested brake which, as an element of the safety guard, protects against both overspeed during upward motion and unintentional movement of the elevator cabin. Such a type-tested safety brake is optionally available for the drive systems with gear unit. For safety reasons, however, we recommend that elevator systems should not be operated without such a protective device.