Evolution of Hamilton’s
Valve Gated Cold Runner

1995 – Hamilton Mold produced their first LSR valve gated cold runner for production

1997 – Hamilton Mold produced their first valve gated cold runner for high consistency silicone

2002 – Hamilton Mold produced their first valve gated cold runner for high consistency organic material (FKM, Vamac, ACM, etc.)

Since Then ...

See it in Action!

Benefits Translate to Higher Profitability

• Enables you to gate directly into the cavity
• Reduces or eliminates sprues
• Less rubber to buy and store
• Dramatically reduces runner wastes and disposal costs
• Permits purging with the mold in the open position
• Uses material temperatures same as your existing process
• Employs the injection molding machine’s hydraulic system and controls
• Shorter cycle times with less fill and service times
• Lower power consumption
• Minimum setup times
• Well suited to automated molding processes and robotics
• Limits handling to the final molded product only
• Wear items are easily replaced
• Pay-back can be realized very quickly, especially with higher cost materials

Proven technology!