TECHNICAL FEATURES
BOMCO designs and manufactures A masts, K masts (open-front masts), derricks,masts and bootstrap masts;
The shape of A-mast section is rectangle or triangle. A-mast has attractive features of high loading capacity and perfect local stability.Each section of A-mast is connected by pins.The mast is assembled on the ground and raised or lowered integrally by the power of the drawworks upon the pins;
The shape of K-mast section is"K"open face type. The beam legs adopt laminated girder structure.Each section of the mast is connected by pins.K masts can be assembled on the ground and raised or lowered integrally by the power of the drawworks;
The main body of telescopic mast is"K"type welded girder structure with two or three sections.It can be rigged up and expanded by main drawworks or hydraulic power;
The derricks adopt tower type steel structure and bolts connection.They feature better integral stability and high loading capacity.
Simple installation and less workload on the heigher levels.
TECHNICAL PARAMETERS
|
Model |
JJ90/39-A |
JJ170/41-A |
JJ225/42-A |
JJ315/43-A |
JJ90/31-KS |
JJ170/33-KS |
JJ225/43-KS |
|
|
Max static hook load,kN |
900 |
1700 |
2250 |
3150 |
900 |
1700 |
2250 |
|
|
Clear height,m |
39 |
41 |
42 |
43 |
31 |
33 |
43 |
|
|
Bottom span,m |
6.5 |
7.5 |
8 |
9 |
2.9 |
2.9 |
|
|
|
Height of monkey board,m |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
24.11,25.21 26.31 |
22.1,23.5 25.5,26.5 |
17.5 |
16.5，17.5 |
25.5，26.5 |
|
|
Setback capacity,m |
1680 |
2750 |
4000 |
4500 |
1500 |
3000 |
4000 |
|
|
Wind loading |
Under no working condition(fullstand, no load),m/s |
36 |
36 |
36 |
36 |
36 |
36 |
36 |
|
Under no working condition(nostand,no load),m/s |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
|
|
Raising & lowering mast， m/s |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
|
|
Weight,kg |
26592 |
34387 |
36321 |
37874 |
16627 |
26000 |
38000 |
|
|
Note：A-A KS-K telescoping mast |
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|
Model |
JJ170/42-K |
JJ225/43-K |
JJ250/42-K |
JJ315/45-K |
JJ450/45-K Piled Box |
JJ450/45-K Swing lift |
JJ450/45-K Sling shot |
JJ450/45-K Swing lift |
|
|
Max static hook load,kN |
1700 |
2250 |
2450 |
3150 |
4500 |
4500 |
4500 |
4500 |
|
|
Clear height,m |
42 |
43 |
42 |
45 |
45.5 |
45.5 |
45.5 |
45.5 |
|
|
Bottom span,m |
7.5 |
8.5 |
7.5 |
8 |
10 |
9 |
9 |
10 |
|
|
Height of monkey board,m |
23.35,24.35 25.35,26.35 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
22.5，23.2 25.8，26.5 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
|
|
Setback capacity,m |
3000 |
3500 |
4000 |
5000 |
7000 |
7000 |
7000 |
7000 |
|
|
Wind loading |
Under no working condition(full stand, no load),m/s |
36 |
36 |
36 |
36 |
36 |
36 |
36 |
36 |
|
Under no working condition(no stand, no load),m/s |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
|
|
起放井架 Raising & lowering mast， m/s |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
|
|
Weight,kg |
39910 |
46922 |
41000 |
67550 |
63000 |
103000 |
81227 |
103614 |
|
|
Note：K-K mast |
|
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|
Model |
JJ585/46-K |
JJ675/48-K |
JJ900/52-K |
JJ225/43-Z |
TJ2-41 |
JJ90/39-W |
JJ120/31-W |
JJ150/31-W |
|
|
Max static hook load,kN |
5850 |
6750 |
9000 |
2250 |
2200 |
900 |
1200 |
1500 |
|
|
Clear height,m |
46.5 |
48 |
52 |
43 |
41 |
39 |
31 |
31 |
|
|
Bottom span,m |
9 |
10 |
10 |
8 |
8.02×8.02 |
6 |
2.32 |
2.52 |
|
|
Height of monkey board,m |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
24.5,25.5 26.5 |
22.543 |
24.5,25.5 26.5 |
16.1，17.1 18.1 |
16.5，17.5 |
|
|
Setback capacity,m |
8000 |
9000 |
12000 |
4000 |
4000 |
1960 |
2000 |
3000 |
|
|
Wind loading |
Under no working condition(full stand, no load),m/s |
36 |
36 |
36 |
36 |
36 |
36 |
36 |
36 |
|
Under no working condition(no stand,no load),m/s |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
47.8 |
|
|
Raising & lowering mast， m/s |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
≤8.3 |
|
|
Weight,kg |
87340 |
16200 |
18000 |
57000 |
31179 |
23990 |
11247 |
14372 |
|
|
Note：，K-K mast ， Z- Bootstrap，W- Mast |
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