Electrical spot annealing

Oakley Industrial Machinery’s electrical annealing system for heating elements provides an efficient and cost-effective solution for the heat treatment of heating elements. The system uses an intuitive process in which components are manually loaded and low-voltage current is delivered through electrodes connected to a certified single-phase transformer.

Clamping electrodes allow for quick changes in diameter, while the manual handling of components accommodates heating elements of varying lengths, making the system highly flexible for small-scale production. Although residual moisture removal requires a separate dehydration cycle, OIM’s electrical annealing system remains an optimal solution for cost-conscious manufacturers.

Electrical spot annealing machine

Advantages

The concrete advantages that make the difference

Precise temperature monitoring

Sensors track the annealing process to ensure consistent heat treatment.

Automatic transformer shutdown

System stops automatically when the target temperature is reached, improving safety and efficiency.

Rapid diameter adjustments

Clamping electrodes enable quick and simple setup for different heating element diameters.

Details

Discover all the details of the machine

TWO PNEUMATIC CYLINDERS DRIVING THE ELECTRODE HOLDERS

are mounted on a slide to allow adjustment of the distance between axes from 80 to 140 mm.

TWO ELECTRODE HOLDERS DESIGNED FOR COOLING THE HEATING ELEMENTS BY WATER SPRAY

connected to the transformer by low-impedance cables of appropriate cross-section, and also designed for water-circulation cooling.

ELECTRICAL CABINET INCLUDING

Controls to set electrode closing. Controls to set time in cycles (Hz) and the percentage of current used for the heat treatment. Pyrometer with temperature sensor, control unit, and display. This temperature control system is unaffected by variations in tube material or tube wall thickness. The preset temperature can be changed quickly via the operator interface, and the machine allows the operator to program the preset temperature in Celsius or Fahrenheit.

HEAVY-DUTY STEEL FRAMEWORK AND SHEET METAL CONSTRUCTION WITH MACHINE-FINISHED SURFACES

DEVICE TO COOL THE HEATING ELEMENT

by water jets once the current cycle is complete. The water used to cool the elements is the same water used for cooling the cables and transformer. After being sprayed onto the element, the water is collected and drained.

COUNTER ELECTRODE IN COPPER FIXED TO THE FRAME

45 KVA TRANSFORMER

The transformer is built with first-grade insulated and magnetic steel laminations, fully impregnated in epoxy resin, and water cooled.

Spot Annealing Machine

You just need to set the temperature…

Technical characteristics

Explore the machine’s technical details
Installed power
45 KVA
Power supply (three-phase)
V/Hz to be defined
Pneumatic supply
6 Bar
Air consumption
1,5 l/cycle
Water supply for cooling
2 Bar
Water consumption
2-3 l/min.
Section of the element to be annealed
from 80 to 140 mm
Tube diameter
mm to be defined
Tube material
Copper-steel-stainless steel
Expected cycle time
5 – 6 sec.

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