A machine series designed for the exact implementation of your specific process. The inductive hardening method for the ZE UTX barrel bores is unparalleled worldwide. Depending on the process task and the materials selected, inductive hardening provides excellent protection of the barrels against abrasion and corrosion.

Principle

The five extruders in the KraussMaffei Berstorff ZE UTX twin-screw extruder series include many innovative features and set new standards in terms of flexibility.
Thanks to the two extruder ranges with an outer/inner diameter ratio of D/d=1.46 for the A version and 1.74 for the R version, the ZE UTX series offers cost-effective solutions for virtually all applications and complies with the ever increasing requirements in terms of material quality and output rates.

Technology

Machine configuration tailored to specific process tasks:

• ZE UTX modular barrel elements... more
  
• ZE UTX screw elements... more
• Materials... more
  
• Control technology ... more

Customer benefits

• Above-average torque due to special power splitting in the gear unit.
• Barrel elements with a new type of temperature control system provide direct and intensive thermal transfer. The process steps in the extruder can thus be optimised by precise and dynamic regulation and temperature control.
• The 8-shaped ZE UTX barrel bores are induction hardened to give them the necessary resistance to abrasion and/or corrosion. Expensive replaceable anti-wear liners are thus no longer required.
• The enlarged ZSFE side feeder unit gives increased throughput of solid materials by reducing fluidisation effects. In addition, the larger unit conveys the material more gently.
• The oil lubrication system, the temperature control units and the electrical control equipment are all integrated into the extruder base frame. Wiring and pipework for the ancillary equipment is all done in the factory and checked before delivery, thus substantially reducing commissioning times on site. The floor space is reduced to the actual extruder and all ancillary units are easily accessible for service and maintenance purposes.
• With the C-clamp flange system, changes to the barrel configuration can be performed up to 70% faster, as compared to the conventional bolted flange method. Dismantling and re-assembly of the extruder barrel can be carried out in segments, with no loss of preloading. KraussMaffei Berstorff ZE extruders with C-clamp connectors are leak-tight up to 350 bar.