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column and boom:, 1. boom do lift and retract movement., 2. Heavy type., 3. Could offer weding, flux recovery machine,platform. - details see: https://www.machineto.com/special-designed-tank-welding-column-and-boom-10200885

Column and boom/welding manipulator:

(1) Column and boom are used for the inside and outside circumferential and longitudinal welding
(2) It mainly consists of column, boom, pedestal,ladder,electrical equipmet and hand control box. We also offer welding head and flux recovery system if customer require
(2) There are three types for you to choose. Fixed type, Fixed with rotation type, movable type
(3) Column can do both retracting (left and right) and lifting(up and down) movement to meet weld need.
(4) The speed of retracting are adjusted by Frequency Conversion Speed Control(VFD). It is precise and stable.
(5) Movable type cab be used with track together, to facilitate operation.
(6) Column and boom are often used with welding rotator and positioner together. (as show in following picture)
(7) Welding head and Flux recovery system are offered
(8) Hand-control box is offered to facilitate operation
(9) There is safty device

This welding manipulator can be used in match with automatic welder, welding rotator (roller stand) or welding positioner (turing table), and for the inside and outside circumferential and longitudinal welding. It is also applicable to automatic welding of metal objects.

Model	LHQ2*2 (Light)	LHQ3*3 (Light)	LH3*3 (Medium)	LH4*4 (Medium)	LHM4*4 (Heavy)	LHM5*5 (Heavy)	LHM6*6 (Heavy)	LHM7*7 (Heavy)
Lifting Stroke(m)	2	3	3	4	4	5	6	7
Retracting Stoke(m)	2	3	3	4	4	5	6	7
Lifting Speed(mm/min)	800	800	800	800	800	800	800	800
Retracting Speed(mm/min)	120-1200(VFD)
Column Rotation Angle & Speed(rpm)	Manual	Manual	Manual or 0.11	Manual or 0.11	Manual or 0.11	Manual or 0.11	Manual or 0.11	Manual or 0.11
Retracting Drive Method	Pinion & Rack
Lifting Drive Method	Sprocket Wheel &Chain
Max loading on Boom End(kg)	50	50	150	150	200	200	200	200
Trolley Span(mm)	1060	1060	1500	1500	2000	2000	2000	2000
Trolley Speed(mm/min)	Manual	Manual	2000	2000	2000	2000	2000	2000
Drive method of Trolley	Manual	Manual	Sprocket Wheel & Chain
X-Y slide stroke(mm)	Up and Down :100 Right and left :100