Skip to main content
Search
Toggle Navigation
voestalpine Railway Systems Nortrak

Return to overview

Unistar HR Power Switch Machine

 Electro-hydraulic point machine for freight, urban and mixed traffic.

Unistar HR Switch Machine
Unistar HR Switch Machine installed
Unistar HR Switch Machine installed

The UNISTAR HR has already been installed over 2,500 times in 30 different countries in different climate zones. It meets the strictest safety requirements and among others specifications of German Railways (DB), ProRail and AREMA.

Worldwide under various environmental and operational conditions, the UNISTAR HR family proves market leading quality and reliability. All family members offer watertight and dust-tight  boxes certified according to IP67 & IP68. The unique and SIL4 certified design of UNISTAR HR is proving excellent reliability and highest availability in daily operation

Technical description

  • Motor unit and DLD (drive, locking, detection) unit are split into two individual IP67 & IP68 certified boxes. This allows versatile installation.
  • The motor unit with hydraulic drive is capable of operating up to four DLD units installed in a turnout. 
  • In case of distributed drives in a turnout, identical DLD units are applied. 
  • The throw of each adjustment level can be individually adjusted.

The connecting rods compensate for thermal expansion and contraction of the switch points without affecting the end position adjustments. Integrated pressure heads positively close the
 switch points against the stock rail.

Benefits:

  • Railway, heavy haul, metro and light rail applications
  • Choice of electro-hydraulic
  • Up to four setting levels
  • Operation of turnouts with and without switch rods
  • Operation of swing nose crossings (moveable point frogs)
  • Reduced track downtime
  • Industry leading reliability and availability
  • Short and sturdy connecting rods with thermal expansion compensation
  • Low weight of components, no lifting gear required for installation

Features of UNISTAR HR:

Safety level SIL4 according to DIN EN 50126, 50128 and 50129
MTBF > 500 000 h
MTTR < 20 minutes
Environmental conditions Standard configuration temperature -40 to +80°C, Solar Radiation tested with 1120 W/m², humidity up to 95 %
Protection class IP67 & IP68
Weight weight DLD unit approx. 80 kg, Motor unit approx. 50 kg
Throw 60 - 160 mm, adjustable
Throw time 2 - 5 sec
Throw force  up to 17 000 N, adjustable
Motor voltages 24 - 750 V AC or DC
Locking system
 lock integrated prism lock, trailable or non-trailable
Fixation to track concrete or hollow steel tie, stock rail fixation, sleeper fixation
Interfaces all types of turnouts, with or without tongue connecting rods