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| Categories | Grab Ship Unloader |
|---|---|
| Brand Name: | SSI |
| Model Number: | customized |
| Place of Origin: | China |
| MOQ: | 1 |
| Price: | US $1,500,000-5,000,000/ Set |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 20 sets / year |
| Delivery Time: | 6 months after receipt of advance payment |
| Packaging Details: | Wooden case or bare |
| Certification: | manufacture certificate |
| product: | Ship Unloader System |
| painting: | Jotun |
| DFT: | 320um |
| capacity: | 2000 t/h |
| motor: | Seimens |
| advantage: | reliable |
| color: | red |
| material: | high quality steel |
Ship Unloader System Belt Type Continuous Ship Unloading System Continuity Ship Unloading System
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.
All the stackers 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% |
| model | Mechanical differential | Electric differential |
| weight(t) | 1100 | 1050 |
Rail distance(m) Wheel distance(m) | 18~28 18 | 18~28 18 |
No of wheel Wheel pressure T Driver KW | 40 50 7.5*10 | 40 50 7.5*10 |
| Luffing mechanism KW | 90~110 | 90~110 |
| Four drums mechanism KW | Start 2X500KW Runing 315KW | 4*400 |
| 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
The driving method of traveling mechanism is multi drive. Traveling
mechanism is composed of driving device, traveling support device
and safety protection device. The traveling support device adopts
the wheel group with balance beam, the wheel adopts the rolling
bearing wheel with double wheel edges, and the number of driving
wheels shall not be less than 50% of the total number of wheels.
Most of the driving unit are three in one reducers, which can also
be combined by reducers, brakes and motors through couplings
2. Main structure of bridge-type ship unloader
The connection of the main steel structure of the ship unloader
adopts rigid connection, and the rigidity of the whole machine is
strong enough.
Rolling T-section steel is adopted for the front and rear girder of
the ship unloader and the trolley rail beam without fillet weld, to
avoid weld fatigue cracking that may occur when the trolley wheels
are rolled back and forth.
3. Hopper system
The hopper unloading system of the ship unloader is composed of coal hopper, feeder, fork hopper, coal spreading baffle, windshield, two way chute and buffer bracket.
4. Grab bucket hoisting mechanism(mechanical differential four drums)
The traveling of the mechanical differential grab ship unloader trolley depends on a driving motor to connect the two differential reducers through the a coupling. Through the differential transformation of the gearbox, the grab lifting is transformed into the transverse movement of the trolley.
5.Grab bucket(wire rope reeving system)
6. Luffing mechanism
The luffing mechanism of bridge-type grab ship unloader is composed of motor, brake, reducer, drum and safety brake.
7.Wire rope reeving system of luffing mechanism
8. Cantilever safety hook device
When the cantilever of the ship unloader is luffing to 80 °, the safety hook device is used to hang the cantilever and loosen the steel wire rope at the same time. The safety hook is usually driven by hydraulic cylinder or electro-hydraulic actuator.
9.Wire rope reeving system of wire rope support trolley
Overview of production process
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