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