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PREHEATER WST8/16/25

PREHEATER WST8/16/25

PREHEATER WST8/16/25

Product catalog summary
Overview: The document discusses the benefits and features of in-line inductive wire preheating, which enhances productivity and product quality by ensuring uniform conductor temperature. This process is crucial for the extrusion of certain compounds and offers several advantages such as improved product quality, consistency, and reduced scrap production.
Main Benefits:
  • Improved product quality and consistency.
  • Uniform dielectric properties and reproducible process conditions.
  • Enhanced cell structure for foamed insulating materials.
  • Higher line speeds due to reduced stress on insulation materials.
  • Shorter start-up times and reduced scrap.
  • Improved bonding of insulation material to the conductor.
  • Uniform conductor temperature during ramping phases.
  • Improved aging characteristics of insulation.
  • Evaporation of oil and water residues from the conductor surface.
Operating Principle: The preheater uses a resistive loop formed by the wire around sheaves. The heating current is calculated based on the conductor's resistance, line speed, and temperature requirements, and is induced by a transformer. The system includes feedback for closed-loop temperature control and stops automatically if certain conditions are met.
Key Features:
  • VISU-Touch PoE Webserver Operator Screen for remote operation.
  • USYS software compatibility for managing preheater settings and material recipes.
  • Material recipes for 20 different materials with configurable parameters.
  • Ambient temperature measurement for accurate preheating.
  • Closed-loop temperature control with optional external temperature measurement.
Specifications:
  • Models: WST.8A.7.20.400-x, WST.16A.12.20.400-x, WST.25A.12.20.400-x.
  • Nominal heat power: 8 kW, 16 kW, 25 kW.
  • Sheave diameter: 178 mm (7 in.) or 305 mm (12 in.).
  • Wire diameter range: 0.32 – 3.8 mm.
  • Maximum wire temperature: 200 °C (392 °F).
  • Line speed: 6 – 2500 m/min.
  • Environmental conditions: Indoor, dry locations, ambient temperature operation +5 – 45 °C.
  • Interfaces: Ethernet, RS-232/-422/-485, Profinet IO, EtherNet/IP.
Accessories: AUTAC 300 wire temperature measurement system for precise, non-contact temperature measurement.
Contact Information: Zumbach Electronic AG, Switzerland, and various international offices.
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Catalog excerpts

PREHEATER WST8/16/25-2

_ WIRE PREHEATING - THE KEY TO BETTER EXTRUSION RESULTS_ In-line inductive wire preheating enhances productivity and product quality. Repeatable and uniform conductor temperature helps shorten start-up times and reduce scrap production. Many compounds can only be extruded onto an adequately preheated conductor. Main benefits of wire preheating • Better product quality and improved consistency • Dielectric properties of the insulation material are more uniform and the process conditions are reproducible (important for category type data wires) • Improved cell structure in case of foamed and foam/skin...

 Open the catalog to page 2
PREHEATER WST8/16/25-3

1 The nominal power applies for round copper wire within the diameter range shown. Wires outside this range (smaller or larger cross sections, or other materials) will still be heated. However the max. heating power is lower. AUTAC 300 wire temperature measurement system: The AUTAC 300 is used for temperature measurement and control in applications with conductor preheating or post annealing stages. The system consists of a sensor and a processor unit. Non-contact and precise temperature measurement with "Convective Heat Flow Principle" from 10° C to 300° C on wires and cables with a diameter...

 Open the catalog to page 3
PREHEATER WST8/16/25-4

Option: AUTAC 300 Table-Top AUT.300.80000 Option: Sensor AUTAC 300 AUT.300.0---- Connection plate Outlet position Inlet position Mains cable pass through DIMENSIONS PREHEATER WST16 – WST25 Option: VISU-Touch VISU.001.01100 Option: AUTAC 300 Table-Top AUT.300.80000 Option: Sensor AUTAC 300 AUT.300.0---- Connection plate Mains connection Mains cable pass through Inlet position Outlet position (heated) • Technical specifications are subject to change without notice WORLDWIDE CUSTOMER SERVICE AND SALES OFFICES Headquarter: Zumbach Electronic AG P.O. Box CH-2552 Orpund SWITZERLAND Tel.: +41 (0)32...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.