High Speed Motors
The motors are HDFL type suitable for all types of speed door applications.
Gearing
- Installation position as wished.
- Solid housing made of cast aluminium.
- Worm gear pair of low noise with hollow shaft.
- Integrated safety catch independant from rotary frequency and position.
- Diameter of hollow shaft:
- Worm Wheels are made of Wear Resistant Phosphor Bronze.
- Is suitable for all installation positions.
- Self Locking Low Noise Worm Gears.
Motor
- Three-phase AC motor:
- Voltage able to be changed-over 3x230v/400v, 50Hz
- Duty cycle S3-80%
- AC motor:
- Other voltages, types of protection, etc, upon request
Electronic Limit Switch
- 2 Operating limit switches, 1 prelimit switch (automatic adjustment).
- The upper and lower final position is additionally equipped with change-over free contact.
- Additional change-over contact for red flashing lights.
- Connecting terminal for slack rope switch or similar.
- Range of limit switch for diameter of hollow shaft:
- 30mm
- 40mm
- 15 rotary motions of hollow shaft [HDF1]
- 20 rotary motions of hollow shaft [HDF 2 | HDF 3]
Emergency Actuation
- Emergency crank handle.
- Emergency chain handle with automatic unlocking mechanism.
- Long useful life as it is made of solid toothed wheels made of steel and connecting links made of brass.
- Hoist chain with reversing, therefore it is possible to install the drive hanging or staying.
- The motors can be mounted horizontal or vertical.
Special Models
- Longer operating time of the motor.
- Other voltages and frequencies.
- Higher types of protection.

