Mast
JJ Series self-propelled mast:
l. open face masts with angle legs or beam legs which are ranged from 1700 kN to 5850 kN.
The masts are assembled in a low position and raised or lowered integrally by the drawworks power.
2. The mast is designed and manufactured as per API standard, and the main parts are marked with API monogram.
Parameters:
|
Model no. |
JJ170/41 K |
JJ225/43K |
JJ315/45K |
JJ450/45K |
JJ585/45-K |
|
|
Max. static rating kN |
1700 |
2250 |
3150 |
4500 |
5850 |
|
|
Working height |
41m(135 ft) |
43m(141 ft) |
45(147 ft) |
45(147) |
45(147) |
|
|
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 |
24.5/25.5/26.5 |
|
|
Capacity of monkey board(m) |
3000 |
4000 |
5000 |
7000 |
9200 |
|
|
Wind load capacity |
Under nonworking condition(no stand, no hook load) |
172 km/h(93 nmph) |
172 km/h(93 nmph) |
172 km/h(93 nmph) |
172 km/h(93 nmph) |
172 km/h(93 nmph) |
|
Under nonworking condition(full stands,no hook load) |
130 km/h(70 nmph) |
130 km/h(70 nmph) |
130 km/h(70 nmph) |
130 km/h(70 nmph) |
130 km/h(70 nmph) |
|
|
Raising & lowering mast |
30 km/h(16 nmph) |
30 km/h(16 nmph) |
30 km/h(16 nmph) |
30 km/h(16 nmph) |
30 km/h(16 nmph) |
|
