China Folding Stairs on The Platform for Tank Farm

The general introduction for folding stair:

Folding stairs are used to establish safe passages between platform and tankers. The folding stairs consist of steps, rails, spring cylinder balance system, etc.
The steps are made from grid plate, preventing the operator from falling while raining, snowing or in greasy condition.
The structure is very solid; Maximum design load is more than 300kgs.
The whole folding stairs are hot galvanized. The galvanized folding stair is durable.
The base plate of this folding stair is fixed on the horizontal plane of platform. The distance that the folding stair extrudes from the platform is shorter than other types when stored, from colliding with the traveling tanker as much as possible.
There could be a safety cage at the end of the folding stair, avoiding the operator sliding from the top of the tanker, which is selectable.
The basic technical data for folding stair:

NAME
A (mm)
B (mm)
H' (mm)
T (mm)
C (mm)
H (mm)
SA3
880
635
1620
1290
1400*1400
970
SA4
1310
635
2050
1390
1400*1400
970
SA5
1740
635
2480
1390
1400*1400
970
Notes: Sizes above for reference only. Sizes maybe change according to the parameters provided by customer. We could also supply strengthen folding stair, the steps is 800mm width.
A- Extension length
B- Width of passage
H'- Height when stored
T- Distance extruding from platform when retracted
C- Safety cage's sizes
H- Height of handrail
Our folding stiar in the workshop:
n th
e workshop or
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Overseas project cases: