1. Both of the column and the boom adopt a V-type rail, and possess high loading capacity. 2. To make the positioning of the boom stable and smooth, the column is equipped with a brake motor. 3. The guide holder has a safety pin, and the column has a row of security holes. The safety pin will enter into a security hole when the chain breaks down. In this way, serious accidents are successfully avoided. 4. A pivoting support is used to connect the lower part of this manipulator with its foundation, thus smooth and stable rotation is obtained. Besides, it can also facilitate the work of welding many workpieces at the same time. 5. The guide holder connects the boom with the column, thus making the vertical adjustment and horizontal extension possible. 6. The boom is also equipped with a cross electrical regulator. 7. A stepless speed regulating converter, with stable and reliable performance, is used to control the extension of the boom. And the converter has a failure testing mechanism, which will give an alarm when something wrong happens. 8. The guide holder is box-shaped. And its upper part is connected with the lifting chain; its rear part is linked with the column through the chain wheel; and its front part is connected to the boom. 9. Its speed reducer is mainly composed of a professional cucloidal-pin wheel and a worm-gear speed reducer. 10. This column boom manipulator adopts a total-sealing oil immersion lubricating mode to help keep off dust, slag, and many other impurities

Model	LH8080	LH4580	LH5060	LH3040	LH1235
Horizontal travel(mm)	8000	4500	5000	3000	1200
Vertical travel(mm)	8000	8000	6000	4000	3500
Rotating angle(mm)	±180°	±180°	±180°	±180°	Manual control
					±360°
Rotating speed(m/min)	0.12	0.12	0.12	0.12
Boom elevating speed(m/min)	0.4	0.4	0.4	0.4	0.4
Boom forward speed(m/min)	0.12-1.2	0.12-1.2	0.12-1.2	0.12-1.2	0.12-1.2
Tablorward-backward speed(m/min)	0.2-2	0.2-2	0.2-2	0.2-2	Manual control
Table rail distance(mm)	2700	2000	2000	1500	1000