Type	Heavy-duty			Middle-duty		Light-duty	Precise
	8 x 6	5 x 6	4 x 5	3.5 x 5	3 x 4	2 x 2	3 x 4
Rise and fall effective travel (mm)	8000	5000	4000	3500	3000	2000	3000
Companding effective travel (mm)	6000	6000	5000	5000	4000	2000	4000
Suitable cylinder diameter (mm)	1000-8000	1000-5000	1000-4000	700-500	700-3000	500-2000	700-3000
Stand rotary angle	±180°	±180°	±180°	±180°	±180°	±180°	±180°
Lifting speed of arm (m/min)	0.9	1	1	1	1	0.3	1
Companding speed of arm(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	0.12-1.2
Trolley speed (m/min)	3	3	3	3	3	1.5	3
The center distance of the trolley track	2308	1780	1780	1780	1500	900	1500