HOT-RUNNER DESIGN CONSIDERATIONS

CRITERIA SELECTION CONSIDERATIONS

Plastic type Viscosity

Glass filled

Mineral filled

Flame retardant

Shear sensitive

Unknown additives/behavior

Process Parameters Process Temperature

Mold Temperature

Part Weight Shot weight per bushing including cold runner

Type of gating Direct on part

On cold runner

Gate type and geometry Sprue

Point

Valve

On contours

In dimple

*Courtesy of Incoe Corp.

(Incoe has recently introduced its on-line hot-runner selection system, Compass, linked to the company’s catalogue. Compass can be found at www.incoe.com.)