... )2,lifting speed:0.0105-3.006(m/min)3,worm speed:70-1800(r/min)4,model way:see below ... speed, low frequency occasions, main composition parts for: precision acme screw vice with precision worm vice. 1, price economy, compact structure, simple operation ... and high performance device, main component parts for precision ball screw vice with precision worm vice. 1, high efficiency: only small drive source ...