High Speedy Accordion Machine Shield Features: 1.This type of shields feature a strong tread-resistance.easy to be operated.long lifetime,good tightness and non-deformation upon impact by hard objects. 2.These shields have a long travel range.which has very little compression.The length ratio is 1:10. 3.It has no internal metal parts which falling onto slideways may cause serious damage to machines, 4.It can reach speed up to 200mt./min. 5.Resists to coolants as it doesn't have sticked parts.