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:

The supplier of lifting solution
Kingda Crane

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