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Rail Mounted Grab Type Ship Unloader For Bulk Material Handling

Ship Unloader System Grab Type Ship Unloader for Bulk Handling Rail Mounted Ship Unloader

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.

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/m3

m/min

1000

340

2.94

5.5

61.82

58.23529412

0.85

QU80

350

100

120

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

8000

1000

8.00

14.8

67.57

53.28

QU100

350

135

150

180

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

12~135

135~150

180

20~25

30000

1250

24.00

19.6

63.78

56.448

0.95

QU100

505

135

150

220

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

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

8. Cantilever safety hook device

9.Wire rope reeving system of wire rope support trolley

Overview of production process

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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:	nude
Certification:	manufacture certificate
product:	Ship Unloader System
painting:	International brand
color:	tailor made
capacity:	1000t/h
application:	bulk material handling
motor:	ABB
price:	reasonable
location:	port