Interchangeable Needle Valve Pre-Chamber Simplifies Hot Runner’s Maintenance

Hasco has expanded its Vario Shot hot runner nozzle range to include a new model with an interchangeable needle valve pre-chamber — the Vario Shot Xgate. The wear-resistant Xgate extends the service life of the gates, and it features precision needle guidance with a pre-centering function. The interchangeable pre-chamber is also highly resistant to abrasive and chemically aggressive materials.

Individually geared to specific applications, Hasco says the two versions of the Vario Shot Xgate can work for either amorphous or semicrystalline plastics, and the gate area and contact surfaces can be altered for application-specific temperature control.

Hasco says the Xgate’s needle valve pre-chamber complements the Vario Shot range, which provides compact dimensions, precise temperature control, simple servicing and modular design. There are more than 1,000 nozzle variants — from gating on lower distributor manifolds up to high-end needle-valve solutions. The wide selection of nozzle lengths, including runner and individual nozzles, offers greater freedom in mold design.