Benefits
Improves wear resistance.
Improves strength.
Improves resistance to fatigue.

Cost Effectiveness
Prolongs component life.
Saves on plant down time.
Facilitates the use of smaller sections for a given load.

Suitable Materials
Most carbon containing steels.
Cast iron.
Martenistic stainless steels.

Hardness Profile
Up to 65 R.C. surface hardness.
Case depth from 0.5mm - 20mm.

Micro Processor Control
Ensures accuracy and reproducibility.

Quality
Approved to ISO9001 - 2000.

Range of Components
Gears of all shapes and sizes:
25mm - 4m diameter.
Rolls or tubes up to 7m long.
Cast iron slideways for machine tool industry.
Components from 6mm diameter to 1000mm diameter.

Induction Hardening is a surface hardening technique with a proven record throughout industry. Its excellent controllability makes it a superior alternative to older surface hardening techniques.

Induction Hardening is effected by passing a high frequency current through a suitably shaped inductor in close proximity to the surface to be hardened. The rapid current reversal induces eddy currents in the surface causing it to heat above the hardening (austenitizing) temperature.

The inductor is passed slowly over the surface followed by a spray quench to achieve the rapid heating and cooling which results in hardening.

The process is extremely versatile and can be used on an infinite variety of shape and size components. J. J. Castings is well known for its adaptability to induction harden very large and difficult components as well as smaller repetitive items. The company designs and manufacturers its own purpose built inductors, and has perfected several types to achieve hardness patterns or superior standard eg. Inductors for tooth-by-tooth Induction Hardening of gears from 6 DP to 1 DP. The Company has a wealth of metallurgical expertise and substantial metallurgical 'back-up' facilities.

All components are processed within our approved ISO 9001:2000 quality control system ensuring quality workmanship and long term traceability.