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HT and LT series tempering furnaces

Comprehensive Solutions for High and Low Temperature Heat treatment

Product Overview

The HT (High Temperature) and LT (Low Temperature) series tempering furnaces are engineered to meet the full spectrum of industrial tempering needs—from low-temperature stress relieving to high-temperature secondary hardening. Designed with advanced control systems, excellent thermal uniformity, and energy-efficient features, these furnaces deliver consistent, repeatable results for a wide range of materials and industries.

LT Series – Low Temperature Tempering Furnaces

Operating Range: 100°C to 450°C

The LT series is ideal for processes such as:

Low-temperature tempering of hardened steel

Hydrogen de-embrittlement

Pre-heating and drying

Stress relieving of aluminum or soft alloys

Key Features:

Forced air circulation for even heat distribution

Compact, energy-efficient design

PID temperature control with ±3°C accuracy

Chamber sizes from 100 to 3000 liters

Optional inert gas purging for oxidation-sensitive parts

Typical Applications:

Springs, fasteners, and small mechanical parts

Precision components

Aluminum or magnesium alloy castings

HT Series – High Temperature Tempering Furnaces

Operating Range: 450°C to 750°C

The HT series is built for heavy-duty industrial processes such as:

High-temperature tempering of alloy/tool steels

Secondary hardening cycles

Annealing and aging

Stress relief of welded structures or machined parts

Key Features:

High-grade insulation and robust construction

Incoloy-sheathed electric heating elements

High-efficiency circulation fan for uniformity within ±5°C

PLC + HMI touch screen control system

Optional gas atmosphere capability (nitrogen or argon)

Typical Applications:

Tools and dies

Transmission gears, shafts, and bearings

Aerospace components and turbine blades

Stainless steel or nickel alloy parts

Shared Advantages of HT & LT Series

Complies with CE, UL, and AMS 2750 standards

Chamber designs in horizontal or vertical configurations

Custom loading fixtures or automatic loaders available

Data logging, USB/Ethernet connectivity, and optional remote access

Over-temperature safety protection and interlocked doors

 Industries Served

Automotive & Heavy Machinery

Aerospace & Aviation

Tool and Die Manufacturing

Energy, Oil & Gas

General Metalworking & Fabrication

Optional Configurations

Multi-zone temperature control

Inert atmosphere modules

Integrated quenching tanks (for combined heat treat lines)

Mobile racking systems

Remote monitoring (SCADA/Industry 4.0 ready)

Conclusion

The HT and LT series tempering furnaces offer a flexible and cost-effective heat treatment solution that can be tailored to any production environment. Whether you're dealing with high-performance alloy components or high-volume manufacturing of precision parts, these furnaces deliver the accuracy, durability, and safety required for long-term industrial operation.