Internal protection: There are steel plate and stainless steel protective cover, organ type protective cover, with a good seal, can prevent iron filings, and prevent coolant.
Internal protection form: armor type, short compression stroke, fast speed, but easy to wear due to thin structure, used in compact space machine tools.
Organ type: The compression stroke is short and fast, and the price is slightly lower. It is used for compact space machine tools.
Telescopic shield: The compression stroke is large, the speed is limited, and abnormal noise is easy to occur.
http://www.cncindeed.com/