SPECIFICATIONS & Photographs

Rubber Tired Gantry

Make              : Morris

Year                : 1996

Quantity          : 10 Units

RTG No.         : RTG01, RTG02, RTG03, RTG04, RTG05, RTG06,

  RTG07, RTG08, RTG09, RTG10

Technical Data for Morris RTG

GENERAL

• Equipment                                                        40.6 tonnes, 16 wheeled, Rubber 

Tyred Gantry Cranes

• Max capacity under spreader                            40.6 Tonnes
• Trolley travel                                                    18153 mm
• Max lift height                                                   15500 mm
• Ground to underside of operator cabin  16620 mm
• Gantry wheel centers                                        2750 mm
• Bogie centers                                                    7500 mm
• Hoist speed, Laden                                           20 m/min
• Hoist speed, Unladen                                        40 m/min
• Travel speed (laden)

Trolley travel                                        70 m/min

Gantry travel                                         135 m/min

• Power Supply                                                   Diesel engine driving an

a.c .generator set supplying 440 volt, 3 phase, 50Hz

HOIST

• Motor

                  Quantity                                               1

                  Type                                                    250M, CACA shunt

                  Power supply                                       400V d.c

                  Power rating                                         182 kW

                  Speed                                                  1225/2450 rev/min

                  Tacho type                                           0.2TDPO, 2T-4

                  Thermal protection                                Shunt winding and interpole

winding thermistors

                                    Shunt Alarm/trip                       100^oC/ 112^oC

                                    Interpole alarm/trip                   112^oC/ 125^oC

                  Blower Motor

                              Power Supply                           440V, 3-ph, 50Hz

                              Power Rating                            2.2 kW

                              Anti-condensation heater          220/240 V DC 300W

• Input drive shaft                                                Telescopic Series 75 type A with

180 mm diameter flange

• Gearbox                                                           Foot mounted, type H3S-450,

ratio 73:1

• Brake disc                                                        630 mm diameter

Thruster                                                SDT3/E-ED80/6(AA)

(LMR) (1L)

Max specified torque setting                  3550 Nm

• Ropes

Hoist                                                    26 mm diameter, 6 x 36, right

hand lay, in lengths of 60.5, 55.6, 56.1 and 54.75 meters.

Quantity                                               4

Min breaking load                                 48.1 tonnes

Anti-sway                                             16 mm diameter, 6 x 36 right

hand lay, in lengths of 59.4 and 54.9 meters.

                        Quantity                                               2

TROLLEY

• Motor

Quantity                                               2

Type                                                    160M, T.E. shunt

Power Supply                                       200 VDC

Power Rating                                        8.5 kW

Speed                                                  1750 rev/min

Brake type                                           NFF 10

                        Power Supply                                      120 VDC

                        Tacho type (1 motor only)                    0.2TDPO, 2T-4

                        Thermal protection                                Shunt winding & interpole

winding thermistors

                        Shunt alarm/trip                                    100^oC/ 112^oC

                        Interpole alarm/trip                               112^oC/ 125^oC

                        Anti-condensation heater                      220/240 VDC, 138W

• Gearbox

Quantity                                               2

Type                                                    C0920

• Wheels

Type                                                    Solid steel, flangeless

Size                                                      400 mm x 120 mm

Quantity                                               4

Bearings                                               SKF 24122CC/W33

                        Quantity                                               2 per wheel

•  Guide rollers

Type                                                    NUKR 90

Quantity                                               4

• Trolley buffers                                      Hydraulic type 21 ABS 100/104
• Swinging pulley bearings                                   Two bearing types fitted during

manufacture as follows:

                        Crane serial no.                                    100461, 100462, 100463,

100464, 100465, 100466, 100467

                                                                                    Cylindrical roller bearing type

NNF 5014 ADA-2LSV

                        Crane serial no.                                    100468, 100469, 100470

                                                                                    Taper roller bearing type 32014X

GANTRY

• Motor

Quantity                                               4

Type                                                    Frame size 200S

Power supply                                       400 VDC

Power rating                                         27.5 kW

Speed                                                  1750 rev/min

Brake type                                           Electro magnetic, type NFF 25

Thermal protection                                Shunt winding & interpole

winding thermistors

                        Shunt alarm/trip                                    100^oC/ 112^oC

                        Interpole alarm/trip                               112^oC/ 125^oC

                        Anti-condensation heater                      220/240 VDC, 163W

• Drive shaft

Type                                                    Ref.no 1550-913362-DIN150

Operating speed                                   1750 rev/min

• Axles

Rigid drive                                            Type 7502 (4 off)

Rigid non-drive (dead)              Type 7503 (4 off)

• Tyres

Type                                                    16-00-25 28 ply, tubeless

Pressure                                               130 Ib/in²

WHEEL TURN ANTI-SWAY AND SLEW EQUIPMENT

Wheel Turn

• Hydraulics

Working pressure                                 3000 Ib/in² max

                        Temperature range                                -20^oC to 80^oC

                        Operating speeds                                  1 m/sec max.

                        Fluid medium                                        hydraulic mineral oil

Anti-sway and slew

• Hydraulics

Working pressure                                 3000 Ib/in² max

                        Temperature range                                -20^oC to 80^oC

                        Operating speeds                                  1 m/sec max.

                        Fluid medium                                        hydraulic mineral oil

• Torque limiter

Type                                                    T170

                        Size                                                      100

                        Quantity                                               2 off

                        Torque setting                                       600 Nm nominal

ENGINE

• Make                                                               Cummins Engine Co. Inc, USA
• Model                                                              NTA-855-G4
• Horse Power                                                    475 at RPM 1500 CPL No.1436

MAIN ALTERNATOR

• Rating                                                               435 KVA
• Volt                                                                  460 V, 50Hz

HOISTING TYPE AND MODEL RATING

• Maker                                                              Bull Electric (DC motor)
• Watt/Rating                                                      182 kW 60%
• Volt                                                                  400 volts DC, 50Hz
• RPM                                                                1225/2450

TROLLEY TYPE AND MODEL RATING

• Maker                                                              Bull Electric (DC motor)
• Watt/Rating                                                      8.5 kW x 2 (60%)
• Volt                                                                  200 volts DC
• RPM                                                                1750

GANTRY TYPE AND MODEL RATING

• Maker                                                              Bull Electric (DC motor)
• Watt/Rating                                                      27.5 kW x 4 (40%)
• Volt                                                                  440 volts
• RPM                                                                1750

SPREADER

• Spreader type                                                   Bromma (EH08)
• Motor                                                              Western Electric
• Rating                                                               5.5 kW
• Volt                                                                  440 volts AC, 60Hz
• Save working load                                            40.6 ton

DRIVE/ INVERTER

• Maker                                                              Telemecanique Drive (DC)

CONTROL UNIT (PLC)

• Maker                                                              Allan Bradly SLC500