SJD85-5.SJD85-5L Power head - Wenling Dongyu Heavy Industry Co., Ltd.

walking frame Power head Backstage Hydraulic hammer Construction Rig

Project	Unit	SJD85-5	SJD85-5L
Borehole diameter	mm	850x850x850x850x850	850x850x850x850x850
Number of drilling heads		5	5
Center distance of drill pipe	mm	600x600x600x600	600x600x600x600
Maximum drilling depth	m	30	30
Drill pipe revolutions	r/min	16/21	(10-25) adjustable speed
Drill pipe diameter	mm	273	273
Basic length of drill pipe	m	3/6/8	3/6/8
Average drill pipe torque	KNM	33	40.4
Maximum drill pipe torque	KNM	66	76
Power of power head	kw	295(75+110kw*2)	330(110kw*3)
Center distance of guide rail	mm	600	600
Number of pulleys	Pieces	6	6
Distance between guide rail center and drill pipe center	mm	920	920
Distance between guide rail center and pulley Center	mm	780	780
Wire rope diameter	mm	22	22
Manipulation mode		Electrical control	Electrical control
Transmission mode between drill pipe shafts		Four axis linkage and one shaft independent transmission	Five axis linkage
Motor starting mode		Common depressurization pneumatic	Variable frequency starting