For smaller quantities (10-20 pounds per hour), a new 21mm twin-screw extruder by Twin Screw Extruders, Inc. has been added to the Extrusion Lab and is available for immediate use. Like the 45 mm, it is equipped with segmented screws that can be quickly reconfigured to meet your specific needs. Its “clamshell” design makes screw changes and cleanouts quick and easy, adding to its versatility. It can also be set up with gravimetric feeders.