Pit Furnace

Pit Furnaces

Vertical Chambers for Long Workpieces

Electric pit furnaces accommodate long shafts, rolls and tubular components in a deep, vertically oriented chamber. An overhead crane lowers the load through the top opening onto purpose-designed supports or suspension fixtures. For suitable shaft geometries, vertical suspension helps limit bending under self-weight during heating.

Temperature Control Along the Working Length

Heating zones distributed along the chamber depth allow the thermal cycle to be matched to the load. Applications include annealing, normalizing, stress relieving, tempering and austenitizing before quenching. Zone control and thermocouple placement address temperature variation along long components; circulation can be incorporated where compatible with the operating temperature and atmosphere.

Designed Around Load and Installation

Usable depth, chamber diameter, fixture capacity and lid movement are specified around your workpiece dimensions and handling requirements. Pit depth and crane headroom are assessed together. For hardening lines, the layout also accounts for vertical extraction and transfer to a separate quench tank.