Hand Tool Hardening Mesh Belt Furnace 860C 45kW Oil Quench 400mm Belt Conveyor

The SLH hand tool hardening mesh belt furnace is a continuous austenitizing and quenching unit designed for the hardening of hand tools and similar small steel components such as wrenches, pliers, screwdriver bits, chisels, punches and knives. A 400mm wide mesh belt carries the parts through four controlled heating zones to an austenitizing temperature of 860C, then delivers them directly into an oil quench that cools them rapidly to form a hard martensitic structure. Precise temperature control with plusmn 5C uniformity and a short, repeatable transfer time to the quench are essential for consistent hardness and minimal distortion, and the furnace delivers both in a compact, continuous format suited to volume tool production.

• Consistent 860C Austenitizing: Four heating zones with independent PID control maintain plusmn 5C uniformity, ensuring that every tool reaches the correct austenitizing temperature and develops the intended hardness.
• Integrated Oil Quench: An oil quench tank positioned immediately after the hot zone provides rapid, uniform cooling, forming a hard martensitic structure while limiting distortion and cracking.
• Designed For Small Tools: The 400mm mesh belt and compact layout are optimized for the size and shape of hand tools, allowing dense loading and high hourly throughput.
• Controlled Protection Against Decarburization: A controlled atmosphere option protects the tool surfaces from scaling and decarburization during heating, preserving surface hardness after quenching.
• Repeatable Production Cycle: The inverter controlled belt from 80mm to 400mm per minute and stable thermal profile deliver a repeatable hardening cycle for consistent tool quality.
• Practical Process Control: The PLC touch screen system stores hardening programs, monitors all control points and provides alarms for over temperature and quench faults, supporting safe volume production.

This hand tool hardening mesh belt furnace is used for the hardening of wrenches, pliers, screwdrivers, chisels, punches, cutting tools, knives, scissors and a wide range of small carbon and alloy steel components produced in volume. It is suited to tool manufacturers, hardware producers and general metalworking factories that require consistent through hardening and controlled distortion. Where decarburization control is important, a protective atmosphere option preserves the surface hardness of cutting edges. The integrated oil quench and repeatable conveyor cycle allow tool producers to harden large batches efficiently, and the furnace can be combined with downstream tempering to complete the heat treatment sequence.

Every furnace is assembled and temperature tested before shipment, and the quench system is checked for reliable transfer and consistent cooling. The delivery includes the furnace main unit, inspection certificates for major components, a complete technical document set and spare heating modules, thermocouples and relays. The equipment is packed in wooden cases with moisture barriers and shock protection for safe transport. Our engineers provide on site installation, commissioning and process development for your tool steels and hardness targets, and the furnace is backed by a defined warranty and responsive after sales support.

Please provide the tool material and dimensions, the required surface and core hardness, the load arrangement and the target hourly output, and we will confirm the zone arrangement, heating power, quench design and atmosphere option. We will then issue a technical proposal, layout drawing and commercial quotation. Minimum order quantity is one unit, payment terms are T/T, and standard delivery is 75 to 105 days. Contact us today for a hand tool hardening solution tailored to your production.