POINT MACHINES

Thanks to a large experience in railway signalling and the strong relationship with RFI, WEGH Group has entered the market of point machines, targeting the medium speed segment (up to 200 km/h). The company has firmly bet on innovative and patented technologies. Over the years, the engineers at our R&D Centre have collected and studied the market requirements, and WEGH is now in a position to offer modular, flexible, easy-to-maintain sleeper solutions, which, more importantly, are safe and reliable.

MET

MET (acronym for In-sleeper Electrical Machine) is an innovative machine designed for railway switch activation. Its points of strength include in-sleeper design, electro-hydraulic activation, modular layout and the external clamp-lock system.

METRA

METRA (acronym for In-Sleeper Electrical Machine with Actuator) is an innovative system designed for railway switch activation, which consists of two activation points. In addition to the features of MET, this system is supplied with an obstacle detector between the point blade and the stock rail, and it can control the railway switch geometry.

MAIN SPECIFICATIONS

MAIN SPECIFICATIONS

  • In-sleeper machine
  • Electro-hydraulic activation
  • Modular layout (activation unit easy to remove)
  • External clamp-lock system (under rail)

 

RAILWAY SWITCHES

  • Radius from 150 m to 500 m
  • Superstructure 60E1
  • Gauge 1435 mm

 

LINE SPEED

  • 200 km/h, straight track
  • 60 km/h, curved track

 

INSTALLATION

  • Either right or left
  • Either on a flat or raised surface
  • With standard or 1/20 tilted rail mounts

 

CONFIGURATIONS

  • Trailable
  • Untrailable
  • Trailable/untrailable, with electromagnet control
  • Untrailable, with ultimate strength (mechanical fuse)

TECHNICAL SPECIFICATIONS

Material of metal sleeper
Corten 15 mm

Weight
680 kg

Weight of activation unit (removable)
35 kg

Input voltage
144 V cc

Absorbed current during manoeuvre
5÷7 A

Electric controls
blade type

Clutching device
hydraulic

Number of manoeuvring tie-rods
2

Number of control tie-rods
2

Total manoeuvring time
1,5 s

Opening clearance of point blade as measured at MET axis
160 mm

Gap between point blade and stock rail for certain electric control acquisition
(on MET axis)

<= 2 mm

Gap between point blade and stock rail for certain electric control non-acquisition
(on MET axis)
>= 4 mm

Load for electric control loss during trailing
(trailable MET)
600 kg +/- 10%

Load for mechanical unlock during trailing
(trailable MET)
1 t +/- 10%

Max. clamp-lock load
7,5 t

Clamp-lock overlapping stroke
40 mm

Temperature range
-25°C ÷ +70°C

Clutching load (max. trailing force)
550 kg +/- 10%

Pendulum sledgehammer hit for unlocking clamp-lock
> 75 kgm

Technical availability
98%

Mean time between two maintenance cycles
10000 h

Mean time to repair
70 min

MAIN SPECIFICATIONS

MAIN SPECIFICATIONS

  • Raggio da 150 m a 500 m
  • In-sleeper tip activation point (MET)
  • Upon-sleeper heel activation point (actuator)
  • Electro-hydraulic activation
  • Modular layout (activation unit easy to remove)
  • External clamp-lock system (under rail)
  • Obstacle detection between point blade and stock rail
  • Control of opening gap of point blade at switch heel

 

RAILWAY SWITCHES

  • Radius from 150 m to 500 m
  • Superstructure 60E1
  • Gauge 1435 mm

 

LINE SPEED

  • 200 km/h, straight track
  • 60 km/h, curved track

 

INSTALLATION

  • Either right or left
  • Either on a flat or raised surface
  • With standard or 1/20 tilted rail mounts

 

CONFIGURATIONS

  • Trailable
  • Untrailable
  • Trailable/untrailable, with electromagnet control
  • Untrailable, with ultimate strength (mechanical fuse)

TECHNICAL SPECIFICATIONS

Material of metal sleeper
Corten 15 mm

Weight of MET (in-sleeper tip activation point)
680 kg

Weight of actuator (upon-sleeper heel activation point)
130 kg

Weight of activation unit (removable)
35 kg

Input voltage
144 V cc

Absorbed current during manoeuvre
5÷7 A

Electric controls
blade type

Clutching device
hydraulic

Number of manoeuvring tie-rods (MET + actuator)
2+2

Number of control tie-rods (MET + actuator)
2+2

Total manoeuvre time
2.8 s

Opening clearance of point blade as measured at MET axis
160 mm

Opening clearance of point blade as measured at switch heel
66 mm

Gap between point blade and stock rail for certain electric control acquisition
<= 2 mm
(on MET axis)

Gap between point blade and stock rail for certain electric control non-acquisition
>= 4 mm
(on MET axis)

Gap between point blade and stock rail for certain electric control non-acquisition
>= 8 mm
(along entire switch length)

Load for electric control loss during trailing (trailable Metra)
600 kg +/- 10%

Load for mechanical unlock during trailing (trailable Metra)
1 t +/- 10%

Max. clamp-lock load
7,5 t

Clamp-lock overlapping stroke
40 mm

Temperature range
-25°C ÷ +70°C

Clutching load (max. trailing force)
550 kg +/- 10%

Pendulum sledgehammer hit for unlocking clamp-lock
> 75 kgm

Technical availability
98%

Mean time between two maintenance cycles
10000 h

Mean time to repair
70 min

To learn about the peculiarities of and find information on all the projects we have implemented in our history, consult the References page.

R&D is a key function to which significant resources are allocated.