The best of all worlds, the roller bearing lock is a proven, newly patented combination alignment lock that combines the best features of the tapered, straight and needle bearing locks with additional benefits. […]
Needle Bearing Locks are A relatively new innovation that attempts to address some of the short-comings of the standard straight lock design, specifically initial engagement. […]
Standard Top Locks Like side locks, these provide lock-up location to overcome injection melt pressures with a small degree of engagement protection. Top locks are typically machined on the centerline axis, […]
Standard Side Locks Used to create lock-up location, which helps overcome injection melt pressures. Side locks provide for a small degree of early engagement protection depending on the particular profile. […]
Straight Locks are The most widely used lock in the industry. Designs are virtually identical between all manufacturers with the exception of material, coatings, grease grooves and graphite plugs. […]
Tapered Round Locks Are usually used as locators only. As with tapered bar locks, they do not provide early alignment or protection of cores, […]
Tapered Bar Locks are primarily used to prevent core shift during injection melt. All tapered bar locks typically use a non-locking taper greater than 7 degrees, with most locks using a 10-degree taper per side. […]
There is another option—an electrically actuated valve gate system. This system combines the strengths of both pneumatic and hydraulic hot runner technologies. While both traditional systems are highly effective technologies in their own right, for some customers an electric system represents the best of both worlds. […]
Hydraulic actuated valve gate systems make up less than 20 percent of the market. While they have a lower market presence in comparison to pneumatic systems, […]
Pneumatic actuated valve stem technology currently makes up over 80 percent of the market. It is the most widely used technology in the medical, technical and closures markets.There are several reasons why pneumatic systems are so widely applied. The technology uses a medium that is readily available in molding facilities—compressed air—to move the valve system. [...]