Catalogo pro heat

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ProHeat 35

Issued Apr. 2009 • Index No. IN/11.0

Induction Heating System

Weld Preheating and Stress Relieving
Applications Process
Induction Heating

Rated Output
35 kW at 100% Duty Cycle, 5 – 30 KHz

Quick Specs

Transmission Pipeline – Construction/Repair Pipe Fabrication Shops Power Piping – Construction/Repair Petrochemical – Construction/Repair Shipbuilding MiningEquipment Maintenance Drill Pipe Manufacturing Shrink Fit

Input Power
460 – 575 VAC, 3-Phase, 60 Hz 400 – 460 VAC, 3-Phase, 50/60 Hz

Input Amperes at Rated Output Dimensions Weight

400 V: 60 Amps 460 V: 50 Amps 575 V: 40 Amps

Temperature Rating
Storage: -40°C – +60°C Operation: -30°C – +50°C

H: 27-1/2 in (699 mm) W: 21-3/4 in (552 mm) D: 36-3/4 in (933 mm)

Net: 227 lb (103 kg) Ship:265 lb (120 kg)

The Power of Blue .
Easy to install primary power through panel that does not require removal of sheet metal. Multiple output provides two insulated connectors for air-cooled blankets or liquid-cooled cables. Versatile mobility through a lifting eye or optional running gear designed for construction and maintenance. On-board temperature control provides for manual- ortemperature-based programming in a simple-to-learn operator interface. Multiple control thermocouple inputs (patent-pending) are available to control on the hottest TC during heating and coolest TC during cooling for uniform heating and quality. Open output detection (patent-pending) prevents system operation without a covered output receptacle (cable or protective plug). Cable identification system(patent-pending) knows the type of cable attached and limits output to protect cables and blankets.


Isolation fault protection (patented) provides automatic system shut down should power source output short to ground. A sense lead provides direct feedback to the power source to sense fault condition.

Low consumable costs. No fuel costs and minimal insulation costs. Insulation is reusable andmay be used 50 times or more, reducing cost of disposal and replacement. Uniform heating is maintained along and through the heat zone by using induction to heat within the material. The surface of the part is not marred by localized conducted heat at higher than specified temperatures. Time-to-temperature is faster than conventional processes due to the method of applying the heat, reducingheating cycle time. Improved working environment is created during welding. Welders are not exposed to open flame, explosive gases and hot elements associated with fuel gas heating and resistance heating. High energy-efficient systems (more than 90% efficient) transfers more energy to the part, decreasing heating times and improving power efficiency (less than 60-amp current draw).

ProHeat 35Liquid-Cooled System shown.

Operator tutoring system provides helpful information to optimize coil arrangements for maximum performance.

Easy set-up is achieved using preheat blankets or flexible heating cables combined with user-friendly insulation blankets.

Miller Electric Mfg. Co.
An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA

Equipment Sales US and CanadaPhone: 866-931-9730 FAX: 800-637-2315 International Phone: 920-735-4554 International FAX: 920-735-4125

Web Site

ProHeat 35 Induction Power Source

Built-In Temperature Controller
The ProHeat 35 Induction Power Source is equipped with a built-in temperature controller. The controller provides for Manual Programming or Temperature Based Programming. Manualprogramming provides for setting a power level and a time duration. This is beneficial in preheat applications where a part is heated to temperature and the heating device removed. Temperature Based Programming provides the ability to develop procedures for preheat, hydrogen bake-out or stress relieve. Four control thermocouple inputs and two monitoring thermocouple inputs are provided for heating....
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