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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/column-and-boom-10200895

Column and boom/welding manipulator :

Features
1. The column and boom are manufactured with cold-formed welded type structure. After the annealing process and finish machining, they possess fine rigidity and strength.
2. To ensure safety, the boom lifting device uses a ratchet-and-pawl structure and is equipped with a fall protection device.
3. Frequency control is applied for the adjustment of retracing speed, greatly improving the reliability and stability of the fixed welding manipulator.
4. The front end of the boom is manufactured with a cross adjustment structure which can be adjusted through the manual control box.
5. The eight guide wheels all utilize eccentric structure. During installation and set up, the lead rail tension can be adjusted by using the eccentric shaft. After this adjustment, the rail should be locked with double nuts. Fixed Welding Manipulator (Column Boom Manipulator)
6. The column rotation can be carried out with manual and electric control then locked.
7. The electrical equipment of the fixed welding manipulator includes a manual control box and electric cabinet.
8. Trolley, manned seat and worktable, drag chain, seam tracing and monitoring system, and flux recovering system are optional.

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

LH

Type(m)	Heavy
	6*6	5*6	4*5	3*4	2*2	3*4
Applicable cylinder diameter(mm)	1000-6000	1000-6000	1000-4000	1000-3000	800-2000	1000-3000
Effective length extension of transverse arm(mm)	6000	6000	5000	4000	2000	4000
Effective lifting extension of transverse arm(mm)	6000	5000	4000	3000	2000	3000
Transverse arm flexibility(m/min)	0.12-1.2	0.12-1.2	0.12-1.2	0.12-1.2	0.12-1.2	0.12-1.2
Transverse arm rise(m/min)	1	1	1	1	1	1
Machinery rotary angles	±180°	±180°	±180°	±180°	±180° () manual	±180°
Trolley inner side(mm)	2000	2000	1730	1430	1000	1430
Advance and retreat of the trolley(m/min)	3	3	3	3	() Manual	3