UJ33 three-booms Underground Jumbos - Zhejiang Zhigao Machinery Co., Ltd.

Applicable for underground & tunnel construction in road, railway & hydro power station projects，etc.. Three heavy duty booms, a service platform, a elevating cab, an self opening cable reel & a water hose reel and a grease auto filling system for easy operation & maintenance. Two outside booms equipped with eagle type boom bases & optional auto RHS for larger cross-sectional drilling & bolting, etc. Full hydraulic proportional pilot control for high precision control & lower downtime rate.
Equipped with high frequency hydraulic drifter for high efficiency requirements.

Service Platform
Parallel Holding		Total	Boom Swing angle	±45º
Max.Working Height(from Botton)：12000mm
Rated Load		600kg
Feed
Total Length	6110mm	6776mm	7386mm	7996mm
Rod Length	4305	4915	5525	6135
Rod Depth	4013	4623	5223	5843
Lift Force	20.0KN	20.0KN	20.0KN	20.0KN
（ZY104) Drifter(ZY104)
Jumbo top to rotation unit center		88mm	Rotation Speed	0-388rpm
Impacting Power		20kW	Rotation torque(Max.)：680N.m
Impacting Frequency		60Hz	Weight	170Kg
Boom
Feed Extension		1800mm	Boom lifting angle(Max.)	"+68º/-45º
Boom Extension		1600mm	Boom Swing angle(Max.)	±45º
Parallel Holding		Total	Feed tilt	"+3º/-90º
Feed Beam roll over		360º
Electric system
Total power		220kW	Starting Mode	Star/Delta/Unloading start
Main electric motor		3*55kW
Voltage		380V	Dimensions	3185+395/3mm²
Frequency		50-60Hz	Cabl reel capacity	100M
Shank adaptor
Thread		Diameter		Length
T38		38mm		525mm
R32		32mm		525mm
Screw air compressor system
Pressure		7bar	F.A.D	1m³/min
Electric Pressurized Water Pump
Max.working pressue		17bar	Max.Flow	300L/min
Water hose reel capacity		100m	Power	15kW
Chassis
Diesel Engine		Cummins QSL8.3-C240-III
Rated engine power（2，200rpm):179kW
Approach angle&departure		15º	Tyre	14.00*R24
Hydraulic support leg		4 PCS	Driving brake	Two independent loops
Emergency stop & parking brake		SHAR	Fuel tank capacity	150L
Gradient at Max.Load		1:4	Hydraulic Oil Tank	750L
Tramming speed		17/10/5km/h
Rods
T38-D38-T38*6135mm			φ64-89mm bolting
R32-D32-R32*6135mm			φ64-89mm bolting
T38-H32-R32*6135mm			Face drilling