When it comes to polyurethane metering machines, two pistons are better than one, according to Krauss-Maffei Kunststofftechnik GmbH of Munich, Germany.
Krauss-Maffei said the tandem-piston design gives a more constant flow than single-piston metering systems when running abrasive materials, such as fillers, flame inhibitors and reinforcing fibers.
The Tandem Hybrid PU metering machine uses a sophisticated control system to ensure material flow remains constant, even during switchover between the pistons, which are actuated by servomotor spindle drives. According to Krauss- Maffei, spindle drives are better than hydraulic drives.
Krauss-Maffei's U.S. operation is in Florence, Ky.
Tel. 859-283-0200, fax 859-283-0290.
