Shot sleeve is bored to form an envelope and a special integral insert / liner that covers the whole lenght of the sleeve, gets inserted into the envelope
This way sleeve / envelope never comes into direct contact with molten alloy, so sleeve replacements are completely avoided. Insert / liner is the only component that needs to be replaced
Insert / liner gets replaced very quickly, in case of smaller machines it can be done directly on the machine, while in case of larger ones, there is a special replacement tool we provide.
When using Integral Insert / liner the cost of envelope occurs only at the start of implementation.