features:
mechanical structure :
1.Post widened to 280 mm,guarantee the pillar strength.
2.Block high strength pipe, deformation in 10 years.
3.The whole sliding body without seam and equipped with protection.
4.Quick change type reinforced nylon slider(with self-lubricating)
5.Enhanced drawing board double arm, widely applicable model.
6.Balance wire rope use double fracture resistance design and high strength alloy steel stranded wire and steel core, after the pre-tension technology.
Drive mode
Hydraulic double cylinder drive/traction chain/wire rope adjusting balance. 
safe unlock pattern
Adopt the system of unlocking one side by hand/unlock down by hand,easier. 
hydraulic/electric system
1.Mixer oil cylinder adopt the new rolling process cylinder/combined seal, double support guide and have  high load under long stroke.
2.high quality hydraulic pump station, provide stable hydraulic supply(with overload protection).