Three-Material Molding with Foamed & Solid LSR
Negri Bossi Canbio sT press molds a ping pong paddle with hard and soft thermoplasics and both solid and foamed LSR.
On display at the Negri Bossi booth is an example of the Canbio sT servo-hydraulic toggle line (180 to 500 metric tons), recently introduced to North America. These “highly modular” machines have the Tactus controller with 21.5-in. touchscreen and energy-consumption monitor. A 180-m.t., two-shot model with a third auxiliary injector is molding a ping pong paddle with three materials (or four, depending on how you’re counting).
The rigid core of the paddle is PBT, molded on the main horizontal injector. The smaller vertical injector molds a TPU soft-touch handle. The mold is directly fed liquid silicone by an “Easy-Balance LSR” unit from . This unit overmolds two different ball-control faces on the paddle in two densities—the firmer face in solid LSR and the “spongier” side in microcellular foamed LSR. Parts are handled by a six-axis robot from sister company Sytrama.
Related Content
-
Coinjection Technology Showcases Recycled Material Containment
At Fakuma, an all-electric PXZ Multinject machine sandwiches a black core made of mechanically recycled PC/ABS within an outer layer made of chemically recycled ABS.
-
Fakuma 2023: Wittmann Battenfeld Expands All-Electric Line, Direct-Current Capabilities
Wittmann Battenfeld will introduce the new EcoPower B8X injection molding machine line and show direct current as an energy source for a concept machine that will power its own robot.
-
Arburg Open House Emphasizes Turnkey Capabilities
Held at the company’s U.S. headquarters in Rocky Hill, Connecticut, the event featured seven exhibits, including systems that were designed, sourced and built in the U.S.