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Valve gate systems for demanding applications
Husky offers the Ultra 350 valve gate system, one of the smallest valve gate nozzles available on the market—having a seal diameter of only 8 mm, a bore diameter of 16 mm, and a minimum nozzle spacing of 18 mm with plate actuation, and 25.4 mm with individual stem actuation.
MPW Staff
January 26, 2009
2 Min Read
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valve gate systems
Husky offers the Ultra 350 valve gate system, one of the smallest valve gate nozzles available on the market—having a seal diameter of only 8 mm, a bore diameter of 16 mm, and a minimum nozzle spacing of 18 mm with plate actuation, and 25.4 mm with individual stem actuation.The Ultra 350 valve gate provides improved part quality for tight-access applications because it is designed for ultra-compact, multicavity production of small parts, such as those for medical and closure applications, as well as small technical components (difficult-to-access areas on medical parts or inside gating of closures). The Ultra 350 offers direct gating into difficult to reach areas with distance between nozzles measuring as little as 18 mm and throughput of up to 30g per second. This gate access eliminates the need for hothttps://www.plasticstoday.com/cold combinations, said Husky.
Different gating options address the specific requirements of polyolefin and technical resins. For polyolefins, the optimized tip minimizes heat loss in the gate area. With technical resins, the optimized tip provides increased operating temperatures.
Husky’s Electrically Actuated Valve stem technology is said to offer clean and precise valve stem actuation, and is further said to benefit molders by reducing maintenance and operating costs, and improving efficiency. The electrically synchronized valve gate actuation system satisfies a growing demand to electrify the entire molding cell by providing a unique solution for the molding of medical and other high-performance applications, but the system can be applied to virtually any application, said Husky.
Valve stems are synchronized by a plate that couples them together, which eliminates the lag that is sometimes seen in pneumatic valve gates by ensuring that all stems are exactly in the same position during filling and closing. Both the servo motor and stem movement are controlled through Husky’s Altanium temperature and process controller.
The electrically actuated valve gate systems are easy to set up, says Husky, and the absence of air or hydraulic lines reduces hose requirements around the machine. With Husky’s system, the stem actuation unit can be easily separated from the hot runner, allowing for greater access to the valve stems and cam action components with the mold remaining in the press for both stem removal and decoupling, thus providing greater efficiency.
Husky Injection Molding Systems Ltd., Bolton, ON, Canada; +1 905-951-5000; www.husky.ca
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