• Typical air pressure required is 5.52 to 8.27 bar (80 to 120 psi) , unless otherwise specied in
the mold manufacturer’s documentation.
NOTE:
For many pneumatic VG applications, air pressure of 7 bar (100 psi) may be sucient, while
some applications may require up to 12.5 bar (180 psi) for optimal and stable performance.
• Compressed air hoses must be large enough to permit adequate ow to the locations where
air is required.
• Compressed air used for mold actuators must be interlocked with the machine operator’s
gate, so opening the gate prevents any motion.
• Quick exhaust valves must be located close to the actuators they control, so the compressed
air in the mold will decompress rapidly and speed operation of the actuator.
• Lockout valves must be installed (according to ANSI Z244.1 or local regulations) to the air
supply for use when:
• Serving the mold
• Performing maintenance
• Installing and removing the mold
3.7 Hydraulic Cooling Water Specications
Description Value
Maximum temperature at inlet 35 °C (95 °F)
Maximum pressure 8 bar (116 psi)
Maximum number of actuators per cooling circuit and/or maximum temperature
at outlet
3 actuators
40 °C (104 °F)
3.8 Pneumatic Cooling Water Specications
Description Value
Maximum temperature at inlet 90 °C (194 °F)
Maximum pressure 8 bar (116 psi)
Maximum number of actuators per cooling circuit and/or maximum
temperature at outlet
3 actuators
40 °C (104 °F)
Hot Runner Installation Manual v 2.2 — March 2021 Specications
Pneumatic Specications 33