Product
Ladle cranes
The ladle overhead crane designed with safety and reliability, advanced technique, rigid structure, good economy and durability, and easy maintenance.
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Application scenario
Ladle overhead crane is special equipment to lifting liquid steel ladle. The main hoist is operated at high speed so as to fit in high productivity of heat handling and heat transportations. The speed control range can be realized by variable stator voltage controller or frequency controller of motor speed.
Ladle overhead cranes are divided into:
Double-girder two-rail type (the ladle cranes with smaller lifting capacity)
Four-girder four-rail type (ladle cranes with larger lifting capacity)
The ladle overhead cranes have following options:
1. Variable speed control for each mechanism
2. Rotary lifting appliance
3. Variable distance between gantry hooks
4. Overload limit and warming display
5. Load weighing and display
6. Three dimensional lifted point location and display
7. PLC control and fault detection, display, record and printing system
8. Protection of cranes at the same bay from impacting
Detailed Configuration
Lifting Mechanism
Lifting Mechanism
  •   Open winch trolley combined with motor, gearbox, hydraulic brake, drum, sheaves, coupling, brake drum, magnets etc
  •   Wound Rotor 3-phase asynchronous metallurgy motor
  •   Harden Teeth Gearbox
  •   Hydraulic Drum Brake (double braking system to assurance the safety)
  •   Plate-rolled Drum kits
  •   Rigid box type trolley frame
  •   All movements are controlled by stator various speed controller or inverter controller
End Carriages
End Carriages
  •   Forged Flanged wheels
  •   Rigid welded box type
  •   Modula bogie driver
  •   Movements controlled by inverters
Main Girder
Main Girder
  •   Welded box type girders (2 girders or 4 girders)
  •   Material: carbon steel with high quality of Q235B or Q345B
  •   The main girder is connected by strength bolt
  •   Weld joint tested by X ray or ultrasonic examination
  •   Modula design
  •   Designed Deflection≤1/800 of span
Control And Electrical Parts
Control And Electrical Parts
  •   Enclosed Cabin with air conditioner
  •   Electrical room laid on girders with cooler
  •   All movements controlled by stator various speed controller or inverters
  •   Main electrical parts are in Schneider or Siemens brand
Safe Protection
Safe Protection
  •   Emergency-off switch
  •   Overload protect
  •   Earth protection
  •   Zero Position Protection
  •   Cross travel and long travel protection
  •   Lifting travel protection
  •   Overheating protection of motor
  •   Alarm Bell and Lamp
Product Structure

Product Data
Form 1
Lifting capacity t 16/3.2 20/5 32/10 50/10 74/20
Span m 28.5 31.5 25.5 22.5 31.5
Max. Lifting Height Main hook 16 12 16 12 20
Auxiliary hook 18 14 18 16 22
Duty Group   A7 A7 A7 A7 A7
Speed Main m/min n 0.9 9.8 7.7 6.3 6.4
Auxiliary 11.5 12.75 12.75 10.5 9.7
Trolley travelling 31 37 37.6 31.8 37.2
Crane travelling 90.4 90.9 77 77.8 77
Dimensions (m) mm L1 1930 1980 2050 2200 2400
L2 1530 1530 1700 2000 2750
L3 1070 1050 1070 1005 1050
L4 2390 2460 2680 3195 4100
h 639 609 571 1012 1316
h1 770 496 790 948 1240
H 2185 2189 2481 2754 3533
H1 3360 3362 3184 3022 3472
H2 940+H0 940+H0 1070+H0 1090+H0 1380+H0
B 7038 7038 7068 6998 8828
K 2000 2000 2500 2500 4400
W 5000 5000 5000 4800 310
B1 260 260 300 300 300
B2 689 689 734 784 800
B3 1349 1349 1334 1414 1500
Max. wheel load kN 229 253 327 426 351
Total Power Kw 54.3 79.7 90.5 130.5 214
Crane Rail   43kg/m or QU70 QU80 QU100
Power source   380V 50Hz 3-pase A.C.
Form 2
capacity Main hook t 140 160 180 200 225 240 280 320
Aux. hook 40 40 50 50 65 75 75 80
Span m 22 22 28.5 28 27 24 21 24.5
Hoisting Height Main hook 22 22 27 26 28 30 24 28
Aux. hook 22 22 27 26 28 30 26 32
Duty Group A7 A7 A7 A7 A7 A7 A7 A7
Speed Main hook m/min 6.84 0.6〜6 7.2 8 8 10 10 9
Aux. hook 9.6 9.5 9.3 9.3 10 10.5 10.5 10
Main Crab 38 37 38 40 40 38 36 36
Aux. Crab 38 38 40 40 38 40 39 39
Bridge 77.8 77.8 86 86 87 87 76 63
Dimension L1 mm 1850 2400 2600 2600 2600 3200 3200 3300
L2 2400 1800 2600 2600 3000 3600 3600 3600
L3 1700 1700 2350 2400 2400 2500 2500 2500
L4 1600 1700 1600 1600 1800 2000 2000 2000
h 4200 4871 6000 6200 6200 6200 6200 6000
hi 1066 1886 1200 1500 1500 1800 1800 1800
H 5600 5695 6500 7200 7200 7500 7600 7800
H1 2600 4710 5000 5500 5500 5000 5000 5000
B 17600 16932 16800 17800 17800 17800 19200 19500
K1 11600 11300 10600 10500 10500 10500 12000 12500
K2 2400 2400 3000 3000 3500 3500 3800 5000
B1 500 500 450 500 500 500 500 500
max wheel load Kn 401 400 525 550 585 625 595 650
Crane Rail Recommended QU120
Power Supply 3-Phase A.C.50Hz 380V

Notes: Can be customized with different span, lifting height, speed, power supply etc….