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1500 tph Self propelled ship unloader for handling bulk cargo at port
Mechanical (electric) differential bridge-type ship unloader is a
suite of effective, reliable and high performance unloading
appliances customized to the port and terminal business handling
dry bulk cargoes.
The ship unloader is installed on the port,unloading dry bulk
cargoes(coal, ore, mineral powder, cement, coke, ash, grain etc)
from vessel`s hold via grab bucket. Discharging dry bulk cargoes to
the hopper, then to the conveyor belt via hopper. By conveyor belt
the dry bulk cargoes are conveying to the stockyard for storaging.
Bridge-type ship unloader including self-propelled trolley type and
wire rope drawing trolley type. Wire rope drawing trolley type
including main and auxiliary trolley type and differential four
drums trolley type. Differential four drums trolley type including
mechanical differential four drums trolley type and electric
differential four drums trolley type.
Mechanical (electric) differential bridge-type ship unloader is
most advanced and widely used today. Its hoisting system, opening
system and drawing system, are controlled by four drums. It was
particularly designed for specializing in professional bulk
handling solutions that provide very highest levels of performance.
All the ship unloaders are designed based on our client`s technical specifications and applications, so the technical discussion meeting is essential before the project proposal stage.
model | Self-propelled trolley | Main and auxiliary trolley | Mechanical differential | Electric differential |
weight(%) | 100% | 80% | 60~65% | 60% |
stability | 1.4 | 1.5 | 1.7~1.8 | 1.7~1.8 |
Wire rope lengtg | 1 | 6 | 2.5 | 2.5 |
Power consumption | 1 | 2.5 | 1.1 | 1.2 |
Operating cost(%) | 100% | 95% | 90% | 90% |
Fault and maintenance | Breakdown rate high and hard to maintain | Breakdown rate low and easy to maintain but wire rope system is complicated | Wire rope system is simple, easy to change gear reducer is specific design,hard to maintain and change | Wire rope system is simple,gear reducer is standard,easy to maintain,electrical system is complicated |
Cost of fundamental and facilities(%) | 100% | 95% | 85% | 85% |
Specification of ship unloader | ||||||||||||||||
vessel | capacity | unload time | lift capacity of grab | weight of single grab | cycle times | one cycle | density of bulk material | rail distance | rail | wheel pressure | extending reach distance of grab | rear reach distance of grab | hoisting speed | lowering speed | trolley speed | traveling speed |
DWT | t/h | hours | T | T | s | t/m3 | m | kN | m | m | m/min | m/min | m/min | m/min | ||
1000 | 340 | 2.94 | 10 | 5.5 | 61.82 | 58.23529412 | 0.85 | 16 | QU80 | 350 | 23 | 21 | 90 | 100 | 120 | 25 |
5000 | 500-2000 | 2.5~10 | 12.5~48 | 7.3~28 | 67.42~71.43 | 52.56-53.4 | 0.8~0.9 | 10.5~20 | QU80~100 | 245~600 | 24~28 | 8~16 | 100~160 | 120~190 | 150~240 | 20 |
8000 | 1000 | 8.00 | 25 | 14.8 | 67.57 | 53.28 | 20 | QU100 | 350 | 28 | 17 | 135 | 150 | 180 | 20 | |
20000 | 800-1000 | 20.00 | 22~30 | 13.3~14.8 | 55.56~67.57 | 53.28~64.8 | 0.85 | 16~22 | QU80~120 | 330~530 | 24~38 | 21 | 12~135 | 135~150 | 180 | 20~25 |
30000 | 1250 | 24.00 | 32 | 19.6 | 63.78 | 56.448 | 0.95 | 16 | QU100 | 505 | 33 | 14 | 135 | 150 | 220 | 25 |
35000 | 800~1600 | 21.88~43.75 | 22~40.5 | 12.8~25 | 62.52~76.19 | 54~57.6 | 0.85~0.95 | 14~24 | QU80~100 | 330~530 | 27~31 | 11~19 | 120~135 | 135~180 | 180~220 | 20~25 |
50000 | 1250~1650 | 33.3~40 | 32~40 | 19.5~25 | 60~67.35 | 56.16~60 | 0.85~0.95 | 22~26 | QU100~120 | 500~520 | 30~33 | 17~19 | 150~200 | 180~240 | 180~220 | 20~25 |
70000 | 1250~1750 | 40~56 | 34~42 | 20.5~25.75 | 52.08~68 | 53~69.12 | 0.85~0.9 | 22~30 | QU100~120 | 500~600 | 32~40 | 16.5~27 | 160~220 | 190~240 | 180~240 | 20~25 |
100000 | 1000~1800 | 55.56~100 | 30~46 | 18~27.6 | 55.56~75.12 | 48~64.8 | 0.8-1 | 22~26 | QU120 | 450~600 | 30~38 | 17~20 | 135~180 | 150~220 | 180~240 | 25 |
150000 | 1800~2100 | 71.42~83.33 | 45~52 | 27.2~31.5 | 63.16~66.67 | 54~57 | 0.90~2.4 | 24~28 | QU120 | 600~736 | 39~41.5 | 19~24 | 160~200 | 190~240 | 200~240 | 20~25 |
Main structure of bridge-type grab ship unloader
Mechanism of bridge-type grab ship unloader
1.Traveling mechanism
2. Main structure of bridge-type ship unloader
3. Hopper system
4. Grab bucket hoisting mechanism(mechanical differential four drums)
5.Grab bucket(wire rope reeving system)
6. Luffing mechanism
7.Wire rope reeving system of luffing mechanism
Overview of production process
Photos of our factory