
BATTERY-GATE VALVE WRENCH GMS 650 Z
With the battery-operated Gate Valve Wrench GMS 650 Z you can move even large and heavy gate valves. The newly developed WEROWAVE technology with its construction of high-quality components guarantees a long service life. In addition, the two Li-Ion battery packs with AIRSTREAM technology, which are included in the scope of delivery, ensure rapid charging and thus maximum operational readiness in everyday working life.
With its 650 Nm continuous torque, the GMS 650 Z is your professional partner in the gas, water, sewage and industrial sectors. A wide range of accessories, such as the wero telescopic drive linkage for the ergonomic operation of underfloor gate valves, the telescopic support for trailer coupling for particularly high-torque applications or the many separately available adapters make the GMS 650 Z a multi-talent and the first choice for all users. And that with a
total weight of only 5.7 kg!
- Up to 650 Nm continuous torque and a breakaway torque of 900 Nm, maximum 60 rpm spindle speed
- 18 VDC brushless EC-TEC motor with metal gearbox, 4 speeds and electronic torque cut-off
- drive unit can be rotated 360° for ergonomically comfortable application adaptation
- integrated differential counter module for recording the spindle revolutions
- incl. support foot and telescopic output rods for optimum stability.
optionally available with castors for ergonomic transport - incl. 3/4“ tool quadrant outlet, 33 mm interchangeable quadrant and cardan joint
- incl. 2 Li-Ion batteries 5.2 Ah and quick charger (AIRSTREAM technology)
- optional aluminium case for easy storage and safe transport
- extensive accessories for many areas of application, e.g. under- or
- above-ground hydrants, manhole cover locks, tapping devices, crane winches and for emergency operation of automated drives is optionally available
EXTENSIVE RANGE OF ACCESSORIES GMS 650 Z AND WMS 800 Z

Of course, our machines are also adaptable and expandable after purchase – that is what we guarantee with our good name. Among other things we offer the following accessories:
- wero side gear for places difficult to access or for operating gate valves with rising spindle
- wero multi-function adapter for hand wheels (for 3, 4 or 5-spoke versions in various designs)
- wero adapter for square protectors (conical, 15 – 55 mm) and manhole cover locks (17 mm / 22 mm) and much more
- wero telescopic drive linkages and joints for the operation of gate valves in underground shaft structures

GATE VALVE WRENCH WMS 800 Z
The alternating current operated gate valve wrench WMS 800 Z offers reserves that leave hardly any tasks unfinished. The gearbox with the newly developed WEROWAVE technology in combination with a professional industrial drive (1,300 W) forms an extremely powerful device. Robust and proven drive technology is paired here with state-of-the-art control electronics for adjustable speed and torque limitation.