T28/39T Portal Crane - Colmar

The equipment can be supplied for any rail gauge type.

This portal has been developed for handling and laying railroad switches (turnouts), track panels, or sleepers. The portal structure is made of sturdy electro welded steel. The cabin, with its command panel, the engine and the hydraulic power unit are placed on the main body. The equipment is supplied with a button board for remote controlling all operating functions. The vehicle can drive on crawlers or on rail wheels, and is totally independent during both the removal phase and the material laying phase, as well as when driving to the work site. When it has to be transported for long travels, the T28 portal can load/unload itself autonomously on wagon or semitrailer. Two vertical hydraulic columnss – instrumental to the portal lifting - allow the right and left crawlers positioning even on surfaces at differential levels, thus constantly maintaining an horizontal loading set up, and allowing a stable movement of the equipment. The portal is also equipped with four vertical hydraulic cylinders, for standing on rail wheels, and with four hydraulic cylinders for lifting sleepers/rails/track panels/switches. The lifting system is adjustable on the horizontal plane on a range of +/- 5° and on the vertical plane on +/- 2° 30’, in order to smoothly drive on rough and uneven terrain. The equipment avails an artificial horizon in order to automatically maintain the load in horizontal position, even when the portal is on a uphill or downhill path. Horizontal hydraulic cylinders for crawler open/ close operations, and for managing the frame, which handles the load, are provided as well.

Longitudinal rail road switch launch:

The T28 portal removes the old rail road switches and launches the new ones, moving along the rail track, according to the following steps:

• It lifts and loads of the new rail road switch on the Colmar/Ameca A25 / A35 trolleys, and tow it to the lay area.

• It sets the T28 on the old rail road switch, hooks it by means of the clamps, and removes it from its position. Afterwards, it lifts, moves and launches the new rail road switch.

• Finally, the T28 portal loads the old rail road switch on the Colmar/Ameca A25 and A35 trolleys to move it outside the work area.

Lateral rail road switch launch:

The T28 portal removes the old rail road switch and sets the new one at the correct angle with respect to the axis of the track. By standing on the four rail wheels, the portal lifts itself up by means of the four vertical hydraulic columns. It then moves to the side, either LH or RH, one of the horizontal beams, for example the one on the RH side, with its crawler upraised, while the vertical column on the other side, LH, keeps its crawler to the ground. Subsequently, it lowers the RH side crawler to the ground, and moves the central body in the same direction, in order to lift and remove the old rail road switch. Finally, it will perform the same operations to launch the new rail road switch.

Track panels laying down: The T28 portal lifts and removes the old track panels and lays the new ones down.

Sleepers laying down: By means of an hydraulic or mechanical sleepers beam, the T28 portal moves and lays up to 60 concrete sleepers down.

Technical characteristics:

Overall width with retracted crawlers 3.130 mm

Overall width with extended crawlers 7.180 mm

Length 11.000 - 13.550 mm

Height (min - max) 3.190 mm - 4.915 mm Weight 32,5 t

Lifting Capacity 39 t (78 t when in tandem)

Horizontal plane range of the lifting beam ± 5°

Vertical plane oscillation of the lifting beam ± 2° 30’

Across centreline distance between clamps 1.500 mm

Longitudinal centreline distance between clamps 10.000 – 12.600 mm

Crawlers overall width 360 mm

Rail wheels, diameter 400 mm

Wheel base 2.800 mm

Speed on crawlers 5 Km/h

Speed on rail wheels 11 Km/h

Diesel Engine: N° of cylinders: 4 Power: 129 kW

Emergency Diesel engine: N° of cylinders: 2 Power: 12,5 kW

Optional: Synchronised commands of the portals, when operating in tandem, for both working and travelling phases.