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Why Choose Hoist Trolley for Your Double Girder Crane?

DATE: Apr 27th, 2023
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1. Hoist Trolley General Introduction 

Kingda crane hoist trolley (hoist crab) is one type of hoisting mechanism for double girder overhead crane and gantry crane , we can also call it " hoist crab". this hoist trolley features light weight, small cost, smooth running and advanced quality. Kingda crane to be top crane manufacturer in China, design, assembling and commission hoist trolley more than 20,000 sets/ year, has professional knowledge and products experience on it.

In past March, kingda crane shipped 4 sets hoist trolley (hoist crab) for South Korea there are 40/10t and 50/10t, lifting height:12m. depending end user’s description, those 4 set hoist trolley will be use in double girder overhead travelling crane(also can be used in gantry crane), and main girder and end carriage will be finished by themself, only core hoisting component: hoist trolley be assisted by professional and reliable crane factory.

Recently years, purchasing hoisting mechanism from oversea professional crane factory and finishing assembling in local become a trend for Middle-East and East- South Asia market, because we all are trying to reduce freight fee and customs, let them crane equipment become more competitive in local market.

There are two type Kingda crane hoisting mechanism for double girder overhead crane and gantry crane: electric open winch trolley and hoist trolley (hoist crab). Hoist trolley is one of lifting mechanism for double girder overhead crane and gantry crane (EOT double girder crane).


  


While, why choice Kingda crane hoist trolley for your double girder overhead crane or gantry crane?

Design standard:
FEM, DIN AND IEC
highest efficiency,
availability and safety
Running and operation: smoth running  
easy operation  
safety protection measures
Structure:  
Hoist hanging on the balance beam,
Optimized compact size light self-weight
working class:
A1; A2; A3; A4; A5
medium heavy-duty work
Investment  
low budget compared with open winch crane 

Kingda crane hoist trolley lifting mechanism apply relevant FEM, DIN AND IEC. So, hoist trolley will
demonstrate following features:

 
1. With aluminum alloy shell of reducer 2. Steady running and low noise 3. Life time lubricating 
(within safety service circle)
4. Double-disk electromagnetic brake
 

3.  Hoist Trolley Component Demonstration

 Wire rope drum:   machined by high-quality seamless pipes after finishing, groove on the drum assisted by rope guide can effectively prevent roope losses and tangling.                                       
 
wire rope Nominal tensile strength: 2160kn/mm2,
high strength,
high-safety factor,
galvanizing, long service time,
                                   
Rope guide made by strong wear-resistance and good self-lubricating engineering material, greatly reduce safety component-rope guide's wear, and improve lifting mechanism's safe level.                            
Hoisting motor world first class brand: SEW/ABM; 
Hoisting mechanism/ lifting mechanism motor employs double-dwindling squirrel cage pole changing motor, to achieve speed ratio:1:6.  motor's shell is made by extruding aluminum alloy which has good heat dissipation capability, also, the fan is fitted on the end of the motor to enhance cooling performance. Thermal resistor (or thermal switch) is embedded into motor's winding group to prevent overheating;           
protection level: IP55   Insulation level: F
speed control: frequency inverter
                                   
Brake provided with double-disc electromagnetic brake. Brake integration locates at the end of the motor, will automatically close if the motor power is off, preventing loading slipping off. Double-disc electromagnetic brake is more safe and more reliable, braking torque id higher than 18 times of motor's rated torque, braking times up to 1,000,000 times.                            
Gear box shell of gear box uses aluminum alloy material, light weight, corrosion resistance. Semi-grease lubricating oil is full of gear box, no needed to be changed in service life time. 
Gear furfnace: case hardened-high precision grinding
Smal size and light weight;
Smooth running-low noise;
Corrosion-resistance and maintenance free
                           
Hook block  hook block consists of hook and pulley. the hook material should be DG34CrMo, the pulley should be engineering material for anti-wear. It employes anti-friction roller bearing, hook can rote in 360°.the hook is fitted with spring-pressed safe lock.                            
Trolley wheel block  Forged; quenching and hardening, long service time                             
Hook motion switch cams wheel rotary type, 4 levels can be adjusted. 
lifting up: 2 level (1 level reduce speed; 2 level: stop motion);
Lowering down: 2 level (1 level reduce speed; 2 level: stop motion)
                           
Control box surface is sealed with antisepsis plastic spraying, reasonable layout, easy maintenance
protection level:IP55;
Working temperature:45℃;
humidity:≤90%;
power source employes: 3 phase 4 wires;
All wires colored, numbered and sized   
Aviation plug
                                  
Safety monitor Calculate lifting mechanism's rest safety working times;
Accumulated lifting working time;                    Accumulated overload times;
Lifting motor's over-heat protection and alarming;
Over-load protection and alarm; 
Brake pad thickness alarm
Display fault information and maintenance tips
                           
Cross travelling motor world first class brand: SEW/ABM; 
3 in 1 structure
protection level: IP55                       
Speed contol: frequency inverter
                           


4. Hoist trolley Technical Data Parameter:

  SWL working class   working class  hoisting height hoisting speed trvalling speed  H size C size 
(kg) (FEM) (ISO) (m) (m/min) (m/min) (mm) (mm)
2000 3M M6 6/9/12/18 0.8/5.0 5~20 463 350
3200 2M M5 6/9/12/18 0.8/5.0 5~20 463 350
5000 2M M5 6/9/12/18 0.8/5.0 5~20 463 350
6300 1AM M4 6/9/12/18 0.8/5.0 5~20 463 350
8000 3M M6 6/9/12/18 0.8/5.0 5~20 580 563
10000 1AM M4 6/9/12/18 1.0/6.3 5~20 580 563
10000 2M M5 6/9/12/18 0.8/5.0 5~20 580 563
10000 3M M6 6/9/12/18 0.66/4.0 5~20 580 563
12500 1AM M4 6/9/12/18 0.8/5.0 5~20 580 563
12500 1AM M4 6/9/12/18 1.0/6.3 5~20 670 700
12500 2M M5 6/9/12/18 0.6/4.0 5~20 670 700
16000 2M M5 6/9/12/18 0.66/4.0 5~20 670 700
20000 1AM M4 6/9/12/18 0.66/4.0 5~20 670 700
20000 2M M5 6/9/12/18 0.53/3.4 5~20 670 700
20000 3M M6 6/9/12/18 1.0/4.2 5~20 864 1000
25000 1AM M4 6/9/12/18 0.53/3.4 5~20 864 1000
25000 3M M6 6/9/12/18 0.8/3.3 5~20 864 1000
25000 2M M5 6/9/12/18 1.0/4.2 5~20 864 1000
32000 2M M5 6/9/12/18 0.8/3.3 5~20 864 1000
32000 2M M5 6/9/12/18 0~4.9 5~20 1023 950
40000 1AM M4 6/9/12/18 0~4.9 5~20 1023 950
50000 2M M5 6/9/12/18 0~3.2 5~20 1023 950
50000 1AM M4 6/9/12/18 0~4.1 5~20 1023 950
63000 1AM M4 6/9/12/18 0~3.2 5~20 1023 950
63000 2M M5 6/9/12/18 0~2.4 5~20 1023 1110
80000 1AM M4 6/9/12/18 0~2.4 5~20 1023 1110
 

5. Hoist trolley Technical Proposal:

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