Scale provides high-precision dosing of small batches
Maguire
The 100 Series Weigh Scale Blender (photo) is designed for plastics-industry applications, such as molding and extruding, that require the blending of small amounts of color or other additives with extremely high precision. Said to be one of the smallest machines of its type, the unit weighs and blends up to four components at rates of up to 450 lb/h This blender features a Micro-Pulse metering device, which has a slide-gate apparatus attached to a pneumatic cylinder with a very short (0.125-in.) stroke. The cylinder is rapidly and sequentially pulsed up to 20 times per second during dispensing, permitting very precise dose control, says the company. The machine is also self-calibrating, and achieves an overall precision of 0.1% of specified blend. — Maguire Products, Aston, Pa.