
PRODUCT OVERVIEW
The Cooperheat 50kVA Heat Treatment Unit is a high-performance industrial heat treatment system designed to deliver precise temperature control and reliable thermal uniformity across multiple control zones. Featuring the proprietary Advantage 3™ temperature programmer/controllers and a panel-mounted 12-point Fuji recorder, the unit provides accurate monitoring and recording of heat treatment cycles.
Product description
The Cooperheat 50kVA Heat Treatment Unit is built to provide dependable and precise heat treatment performance for demanding industrial applications such as post-weld heat treatment (PWHT), stress relieving, and controlled thermal processing. Equipped with Cooperheat’s unique Advantage 3™ temperature programmer/controllers, the unit ensures accurate temperature regulation and uniform heat distribution within each control zone, resulting in consistent and repeatable heat treatment outcomes.
A key feature of the unit is the integrated panel-mounted 12-point Fuji recorder, which enables detailed monitoring and recording of temperature data across multiple channels. This allows engineers to track, document, and verify heat treatment cycles for quality assurance, compliance, and process optimization.
Designed using more than five decades of Cooperheat’s industry expertise, the 50kVA Heat Treatment Unit addresses the practical challenges faced by heat treatment professionals. Its robust construction, intuitive controls, and modular functionality provide high versatility across a wide range of heat treatment tasks while maintaining ease of operation and maintenance.
The unit delivers excellent value for money by combining reliable performance with long service life and low maintenance requirements. Safety is a core element of the design, ensuring secure operation in demanding industrial environments.
Product specifications
Transformer core
- Three phase, forced air cooled, class H, 50kVA.
- Primary winding connected in Delta.
- Secondary winding connected in Star.
- Auxiliary winding: 110V a.c. 3.3kVA single phase.
Primary supply
- Primary voltage: 380V, 415V, 440V.
- Primary current: 76A, 70A, 66A.
- Frequency: 50/60 Hz.
Protection
- Three phase 80A circuit breaker with shunt trip.
- Three primary core winding over temperature thermostats. linked to circuit breaker shunt trip.
Secondary outputs
- Output: 32.5V – 0V – 32.5V (for 30V and 60V heating element operation).
- Auxiliary outputs: Two 110V, 10A, 50/60Hz output sockets.
- Number of temperature controlled output channels: 6 channels.
- Maximum load per output channel: 8.1kW (e.g. three 60V, 2.7kW heating elements).
- Maximum current per output channel: 135A.
Switching
- Six double pole, 180A, contractors with 110V a.c. coil.
Temperature control
- Temperature measurement, display and control.
- Degrees Fahrenheit or Degrees Centigrade.
- Start temperature.
- Temperature ramp up and down in degrees per hour.
- Hold/soak temperature set point and hold/soak time period setting.
Temperature recording
- Ambient temperature: Minus 0˚C to 50˚C.
- Humidity: 20% to 80% RH, non-condensing is required (temperature x humidity < 3200).
- Environmental protection: IEC IPSO (front door of panel mounted unit).
- Input points: 12 Points.
- Input thermocouple types: Thermocouple inputs – K.
- Reference range: Type K: -200˚C to 1370˚C (-326˚F to 249˚F).
- Printing system: Ink jet system, 6 colour.
- Chart Width: 180mm.
- Chart Length: Z fold 20m.
- Chart Speed: 5 to 300mm per hour.
Construction
- Case: 304 Stainless Steel case fitted with four 150mm nylon wheels.
Dimensions
- Weight: 355kg.
- Case Dimensions:
– Height: 1545mm;
– Width: 680mm;
– Depth: 665mm.
Product resources

Cooperheat Heat Treatment Equipment Catalog
Frequently asked questions
What is the Cooperheat 50kVA Heat Treatment Unit used for?
The Cooperheat 50kVA Heat Treatment Unit is used for industrial heat treatment applications such as post-weld heat treatment (PWHT), stress relieving, and controlled thermal processing. It provides precise temperature control and uniform heat distribution across multiple control zones for consistent and high-quality thermal results.
What is the function of the Advantage 3™ temperature programmer/controllers in the unit?
The Advantage 3™ temperature programmer/controllers ensure accurate temperature regulation and uniformity within each control zone. They allow precise control of heat treatment cycles, helping maintain consistent heating profiles and improving overall process reliability.
What is the benefit of the 12-point Fuji recorder in the 50kVA Heat Treatment Unit?
The panel-mounted 12-point Fuji recorder enables continuous monitoring and recording of temperature data across multiple channels. This provides detailed documentation of heat treatment cycles, supporting quality assurance, traceability, and compliance with industry standards.
What are the main advantages of the Cooperheat 50kVA Heat Treatment Unit?
The main advantages include excellent value for money, high versatility for various heat treatment processes, ease of operation and maintenance, strong safety features, and a purpose-built design based on over 70 years of Cooperheat’s experience.
