The HT and LT series Tempering furnaces are typically categorized based on their temperature ranges and are designed to suit different industrial Heat treatment requirements. These series are often part of a manufacturer's product lineup for tempering, annealing, stress relieving, and aging processes. Below is a professional and comprehensive English introduction you can use for brochures, websites, or technical materials:

HT & LT Series Tempering Furnaces

Precision Heat Treatment Solutions for High and Low Temperature Applications

Overview

The HT (High Temperature) and LT (Low Temperature) series tempering furnaces are two distinct but complementary product lines developed to address a broad spectrum of heat treatment applications. Engineered for maximum temperature stability, energy efficiency, and repeatable results, these series support thermal processes in industries ranging from automotive and aerospace to toolmaking and general engineering.

LT Series – Low Temperature Tempering Furnaces

Optimized for Low to Medium Temperature Processes

Temperature Range: 100°C to 450°C

The LT Series furnaces are ideal for processes such as:

Low-temperature tempering

Pre-heating

Drying

Stress relieving of aluminum or soft metals

Baking or de-hydrogenation

Key Features:

Forced air convection ensures uniform heating

High thermal insulation reduces energy loss

Digital PID temperature control with ±3°C accuracy

Compact footprint, ideal for workshops and R&D labs

Batch or chamber designs for small and medium loads

Typical Applications:

Precision tools

Fasteners and springs

Aluminum components

Pre-heating of dies and molds

HT Series – High Temperature Tempering Furnaces

Designed for Demanding Industrial Tempering Applications

Temperature Range: 450°C to 750°C

The HT Series supports advanced processes such as:

High-temperature tempering of alloy/tool steels

Secondary hardening cycles

Annealing

Aging of stainless steels and nickel alloys

Stress relieving of welded or machined components

Key Features:

Heavy-duty chamber construction with high-temp insulation

Incoloy-sheathed heating elements for long life

High-efficiency air circulation fan for uniform heat distribution

PLC + HMI control system with programmable recipes

Optional nitrogen or argon atmosphere for oxidation protection

Typical Applications:

Aerospace engine and landing gear parts

Tool steel components

Hardened gears, shafts, and dies

Stainless steel fabrication

Shared Features Across HT & LT Series

Chamber volumes from 100 to 5,000 liters (customizable)

Safety features including:

Over-temperature protection

Door interlock switch

Emergency stop system

Data logging & USB/Ethernet interface for traceability

Complies with international standards (CE, ISO, AMS 2750)

Optional Upgrades

Vacuum-tight design (for inert gas purging)

Integrated quench tank (for small batch hardening lines)

Mobile carts and racking systems

Remote monitoring software for Industry 4.0 compatibility

Why Choose the HT & LT Series?

Versatility: Covers all standard tempering temperatures in one product line

Reliability: Built to run 24/7 with minimal maintenance

Precision: Industry-leading temperature uniformity

Support: Backed by global service and technical support teams