Northern Combustion Systems Ltd

20 tonne Heat Treatment Line with Quench and Traversing Pass-over Charger

Two identical 20 tonne capacity heat treatment furnaces


Two identical 20 tonne capacity water / polymer quench tanks


20 tonne capacity traversing pass-over charging machine shown positioned inline with loading and cooling tables


20 tonne capacity, 12.6 metre long pass-over charging machine


View showing furnaces from rear of charging machine


     Click the following Links for videos associated with this plant:    

     25 tonne Quench Proof Test - Commissioning

Quench Table & Locking Bolts Test 

20 Tonne Capacity Charging Machine - Furnace to Quench 

Heat Treatment Line 12 tonne Load Test 

Slideshow of photos


At the time of installation this plant has the largest capacity in terms of treatable component length in the UK. This complete turn key heat treatment line is used by our customer for contract heat treatment. Transfer time for the load from furnace to quench is as low as 48 seconds, with the whole plant being PLC controlled from a single control room with no access to the working area being required by the operators during heat treatment or quenching. The plant layout is designed such that the bespoke pass-over charger does not have to travel laterally to transfer the load from the furnace to the quench therefore significantly reducing the time components are exposed to atmosphere, allowing better quenching and ultimately better metallurgical properties for the components.

Comprising of:  Two Heat Treatment Furnaces, Two Water Quench Tanks, Adiabatic Cooler, Pass-over Charging Machine,

                            Loading & Cooling Tables

Furnace Specification:

                    Chamber size:                    3.7m (W) x 13.0m (L) x 2m (H)

                    Capacity:                             20 tonnes at up to 12.6 metres in length

                    Temperature Range:          500șC to 1200șC

                    Temperature Uniformity:    ±5șC in the range 500șC to 750șC

                                                                  ±10șC in the range 750șC to 1200șC

                    Burner Control System:     3 zone cross fired high velocity burners

Water / Polymer Quench Specification:

                    Capacity:                             20 tonnes at up to 12.6 metres in length                 

                    Tank size:                            12.8m (L) x 3.5m (W) x 4.3m (D)

                    Water / Polymer capacity: 180,000 litres

                    Hydraulic lifting mechanism

                    Multi-jet  high velocity pumped agitation with re-circulation

Adiabatic Cooler

                    Capacity:                               650 kW 

Charging Machine:

                    Traversing pass-over design allows fast transfer with no lateral movement required.

                    i.e. each furnace has a quench tank directly opposite.

                    20 tonne capacity complete with 4 split forks

                    20 metre lateral travel

                    12 metre hydraulically operated fork travel

Copyright Northern Combustion Systems Ltd 2012