HT-direct (6 to 42 kNm) - Torquemotoren - Siemens  |   12/05/2008 3:49 AM  
Hide Images  |  Print
www.siemens.com/ht-direct

High-Power Torque Motors HT-direct

Lower Operting Costs - Higher Availability

HT-direct motors are permanent-magnet synchronous motors that can provide high torques at low speeds directly at the driven machine. High efficiencies and good power factors can also be achieved at low speeds as a result of the permanent magnet rotors.

HT-direct

The HT-direct motors are offered as a harmonized system together with SINAMICS drive converters.
The HT-direct motor / SINAMICS drive converter represents a drive solution with a long service lifetime but with low lifecycle costs and high efficiency for applications with low operating speeds.


HT-direct

HT-direct - Customer benefits

  • With slow-running drives, the efficiency of the HT-direct motors is approximately 2 to 3 % higher than for similar drive concepts.
    For a 1000 kW motor, this results in a saving of 33 kW, which is an annual saving of approximately 15000 € for an operating time of 8 hours per day.
  • The multi-pole drive design ensures that the space requirement and mass of the motors are lower than for similar asynchronous
    machines. The slow-running motors of the HT-direct series obviate the need for a gearbox in many cases (reduction
    in engineering, assembly and maintenance outlay, lower investment and lower operating costs).
  • Environmentally-friendly system (where applicable, no disposal of gearbox oil is necessary; energy-saving drive
    system).
  • Efficient, optimally matched drive system, SINAMICS converter and HT-direct motor for operation without encoders.
  • Thanks to their long service life (nominal bearing lifetime > 60000 hours), HT-direct motors are maintenance-free and have a high availability especially for applications in which a gearbox can be omitted.
  • Customization

HT-direct - Technical data overview

Brief overview
Water-jacket cooled motors

200 to 2080 kW
6000 to 42000 Nm

Forced air cooled motors

150 to 1250 kW
5000 to 23000 Nm

Shaft height

400, 450, 500 mm

Rated speed

200, 300, 400, 500, 600, 800 min-1

Rated voltage

400, 460, 690 V

Frequency converter

SINAMICS S120, SINAMICS S150, SINAMICS G130, SINAMICS G150,
Operation with and without encoder

Degree of protection

IP55

Cooling method

IC71W (water-jacket cooled)
IC416 (rib-cooled with forced air cooled)

Type of construction

IM B3

Bearing

Deep-groove ball bearing with grease lubrication and regreasing device

Regulations

IEC, EN, DIN

HT-direct - Typical applications

Applications where the following are important - high efficiency, low space requirements with low lifecycle costs for the drive solution.The main application areas are as follows

  • Paper industry as roller and press drive
  • Marine industry as propeller drive (main and auxiliary drives)
  • Steel industry for worm drives, servo-press drives and drives for shears
  • Plastics industry as drive for extruder worms, foil-drawing machines
  • Crane industry for the widest range of applications
  • Sugar industry for sugar centrifuges