Sinter Hardening Mesh Belt Furnace PM Parts 1120C 55kW Rapid Cooling 450mm

The SLK sinter hardening mesh belt furnace combines high temperature sintering with an accelerated cooling section so that powder metallurgy parts achieve martensitic, as sintered hardness directly out of the furnace, eliminating a separate quench step. A 450mm wide nickel chromium mesh belt carries the compacts through seven controlled heating zones to a working temperature of 1120C, followed by a high speed forced gas cooling zone that delivers controlled cooling rates matched to the alloy system. Temperature uniformity of plusmn 3C and a stable protective atmosphere ensure consistent density, microstructure and hardness from part to part. The furnace is built for continuous, high volume production of structural PM components used in automotive and mechanical drive systems.

• Sinter Hardening In One Pass: Integrated high temperature sintering and accelerated cooling produce as sintered martensitic hardness without a separate hardening quench, shortening the process route and cutting distortion.
• 1120C Seven Zone Uniformity: Seven independently controlled heating zones with K type thermocouples and PID auto tuning maintain plusmn 3C uniformity, giving consistent density and microstructure across the belt.
• Accelerated Cooling Section: A high velocity forced gas cooling zone provides controlled cooling rates that can be tuned to the alloy, balancing hardness against crack sensitivity and dimensional change.
• Protective Sintering Atmosphere: A multi path gas circuit maintains a controlled nitrogen or nitrogen hydrogen atmosphere that prevents oxidation and decarburization during both sintering and cooling.
• Robust Belt Transmission: The large wrap angle friction drive and inverter controlled transmission move the 450mm belt smoothly from 30mm to 200mm per minute for stable, repeatable throughput.
• Secure Process Documentation: The PLC and touch screen system stores sintering recipes, records temperature and alarm history and supports MES integration for full traceability of every production lot.

This sinter hardening mesh belt furnace is designed for the continuous production of structural powder metallurgy parts that must combine high strength with close dimensional tolerance, such as synchronizer rings, transmission hubs, camshaft and crankshaft sprockets, connecting rod caps and gear blanks for automotive drive systems. It also serves industrial pump and motor components, lawn and garden equipment parts and power tool transmission parts. By combining sintering and hardening in a single continuous pass, the furnace reduces handling, limits distortion and delivers predictable as sintered hardness, making it a preferred route for high volume PM component manufacturing.

Each furnace is fully assembled and temperature profiled in our works before shipment, and the accelerated cooling section is tested to confirm the achieved cooling rate and resulting hardness. The delivery includes the furnace main unit, inspection certificates for major components, a complete technical document set and spare heating modules, thermocouples and relays. Reinforced wooden case packing with moisture protection safeguards the equipment during ocean transport. Our engineers provide on site installation guidance, commissioning and process tuning for your specific alloys and hardness targets, and the furnace is backed by a defined warranty and responsive service.

Please provide the part material and alloy system, the required density and as sintered hardness, the part dimensions and the target throughput, and we will confirm the zone configuration, heating power, cooling rate and atmosphere arrangement. We will then issue a technical proposal, general arrangement drawing and commercial quotation. Minimum order quantity is one unit, payment terms are T/T or L/C, and the standard lead time is 90 to 120 days. Contact our PM heat treatment specialists today for a sinter hardening solution built around your production.