ZC4000/19/29 backfill hydraulic support

Main feature
1、Uses four column supports, absorbed has piled up the type support support strength to be big, the support ability strong merit, simultaneously used the vertical guide-bar mechanism to withstand the exterior horizontal force to overcome has piled up the type support´s shortcoming.
2、Before the top-beam, the vertex path is a line which is parallel with the guide rod movement middle line, the set cap spatial zenith distance may be smaller.
3、Uses the hinge stabilizing bar structure, this structure fills the region to meet goes against the effect to be good, improved the stabilizing bar working condition effectively;
4、Makes the retaining wall using the hinge back plate, may guarantee that fills the region personnel to come in and go out unimpeded.
5、This frame uses the two row humanity structure, has the enough well ventilated cross section and the pedestrian space, effective guarantee coal mine safety production.
6、This support overall stability is good, the backfill effect is good, the structure is simpler, the size is more compact, the weight is lighter.