Wittur WSG-09 gearless synchronous traction machine

Landing doors

Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Design flexibility, coupled with full range of certifications, makes Wittur landing doors suitable for every application.
A wide variety of available finishings and executions allows them to fit in every environment: from residential to exclusive office buildings, from exterior installations to luxurious marine projects, from industrial buildings to hospitals.

Car doors

Since 1977 Wittur has been providing the lift industry with versatile and high-quality doors. More than 30 years later Wittur is the leading company in the lift doors segment, with state-of-the-art technical solutions and unparalleled product range. Regardless of whatever your lift requires - a round door with panoramic panels rather than a straight or a folding one - Wittur can supply the best solution for your needs.

Overspeed Governors

EOS
OL25

Research for innovative solutions and rigid control of product quality are key features of Wittur Safeties.
Wittur overspeed governors can cover a broad range of rated loads and speeds and can be applied both to machine roomless and traditional installations. Our overspeed governors can be engaged at any point along perimeter of pulley and assure high life time due to limited pulley wear.

Car slings

Wittur offers a wide range of car and counterweight frames. Modularly conceived, these components are very flexible in terms of rated load, height and width. The wide range of accessories includes safety gears, suspension pulleys, compensation chain and travelling cable hangers, allowing configurations suitable for different shaft layouts, lift designs and rated speeds. Wittur can also supply special frames for tailored projects.

Cars

Wittur aims at fulfilling customers’ expectations in terms of car design elegance, extension of product range, configuration flexibility and installation easiness.

The offer includes a wide selection of cars, both for passengers and goods transportation, with applications from the residential to the most exclusive buildings.

Safety Devices

Research for innovative solutions and rigid product quality control are key features of Wittur Safeties.
The product range includes uni- and bi-directional, instantaneous and progressive safety gears.
Devices for ascending car overspeed protection are also available. The products are suitable both for new equipments or modernization.

Wittur UCM Solutions

According to EN81-1/2 A3 and EN81-21 A1 (new lifts in existing buildings), new lifts installed after January 1st 2012 must be equipped with a system to prevent a car moving away from the floor with the landing door not in the locked position and the car door not in the closed position.
A UCM solution can be certified as a system (type examination certificate) or composed by tested components.
The UCM unit shall detect unintended movement of the car, shall cause the car to stop and keep it stopped.

Shaft Accessories

All shaft accessories are important to secure smooth operation and long lifetime to the lift. That's why Wittur offers a wide variety of shaft accessories: guide shoes (sliding or roller type), proximity sensors, guide rail brackets, pulleys, pit ladders, buffers

Hydraulic drives

Safety devices

Lift Machines

Systems

MRM W Line

Gearless synchronous traction machines

WSG-09

Wittur WSG-09 is a gearless synchronous traction machine, ideal for use without a machine room.

Gearless synchronous traction machines

WSG-09

Special housing design provides stable and high structural rigidity. Design is verified FEM and physical mechanical test.
Designed by outer rotor. Possible to generate bigger torque with low noise and vibration. Provides comfortable ride.
Solid construction for permissible shaft load Fs at the traction sheave up to 35kN
Safety brake system with electro-magnetical release, provides min. 2×950Nm
CTE test approved according to GB7588 and TSG T7007
Groove profiles according to lift system
Perfect rated motor, use of high - performance permanent magnet, degree of protection IP40, insulation class 155℃ (F), temperature control
Motor with 2 times overload capacity ; max. travelling height up to 120m
EC type-examination certificate according to EN 81-20/50, can be used for UCM solution
Inverter compatible measuring device, rigid coupling or intergrated. (e.g. ECN 1313; ERN 1387; TS5213N2503; EI53C9.25-2048-SA5N2T)
Variable options regarding voltage, speed, torque, braking torque and traction sheave parameters
The braker passed 2 million times braking. After the test, its performance is still in specification. Safety is guaranteed.

Content of supply

Gearless synchronous external rotor drive with:
Traction sheave
Braking system
Measuring and feedback system (encoder)
Mechancial evacuation system (option)
Manual release device for brake (option)
Remotely controlled bowden cable for brake (option)
Connection cable for encoder (option)
All technical documents necessary for approval and detail operation manual