At a glance
Developed to process rubber, silicon rubber and silicon and designed to be thermoregulated by water or oil.
Totally made of hardened stainless steel and available in single layer, coextrusion and triple layer mode. It can works with manual centering system from front or with a double centering.
Highly customizable according to any customer need and to production process.
Treatment/coating to ensure a hardness higher than 1200 HV and lower friction coefficient available.
Processable compounds (e.g.)
|LDPE – HDPE – LLDPE
||Filler (HFFR, PVC, EDPM)
General characteristics of Thermoregulated Crossheads Series
This crosshead is developed to process rubber, silicon rubber and silicon and is designed to be thermoregulated by water or oil, in order to guarantee a uniform heat trasmission and consequently an homogeneous temperature.
It is totally made of hardened stainless steel.
This crosshead is designed to work in coextrusion (filling and sheathing) as well as in triple layer mode (filling, sheathing and stripe). It can also work in single layer mode (insulation – filling – sheathing). In case of triple layer mode, the head can be equipped with a skin/stripe ring.
The centering can be:
- single from front, by means of die nut;
- single from rear by means of tip holder movement (inner layer regulation);
- double from front by means of die nut (outer layer regulation) and from rear by means of tip holder movement (inner layer regulation).
The distance between tip and die (gum space) can be regulated by:
- an axial die movement from front;
- an axial tip holder movement from rear (on request).
Even the die has a dedicated thermoregulated zone, in order to reduce the die drool effect and the lamp/neck on the cable surface. The die thermoregulation allows the operator to act on the cable surface aspect as well.
Treatment/coating to ensure a hardness higher than 1200 HV available, in order to ensure a lower friction coefficient between compound and head, performing the compound flow and ensuring a longer head lifetime: this allows to tackle the increasing of the loaded compound viscosity and the production needs.
Technical sheets of the crossheads included in the series
Pressure and semi-pressure tools
Tube and semi-tube tools
Special tools for lower back pressure, lower adhesion, etc.
The distance between tip & die (gum space) can be regulated by:
- an axial tip holder movement from rear;
- an axial die movement from front.
Connection flange for extruders
Special coating for hardness higher than 1200 HV
Ring for skin
Ring for stripes
By-pass (manual, pneumatic or hydraulic)
Telescopic guide for distributor
Head trolley / Head support
Tool case on the top of the head to place tools, etc.
Any other optional according to customer needs