Pre Oxidation Mesh Belt Furnace Powder Metal Parts 600C 24kW 300mm Belt

The SLP pre oxidation mesh belt furnace is a compact continuous unit that deliberately oxidizes the surface of green or delubricated powder metal compacts at a controlled working temperature of 600C before they enter the high temperature sintering furnace. This pre oxidation step burns off residual lubricant, forms a thin, uniform oxide skin that stabilizes the surface, and improves atmosphere control in the downstream sintering zone, helping to prevent carbon build up and surface defects. A 300mm wide mesh belt carries the parts through three precisely controlled zones at a controlled belt speed, while a metered air atmosphere and balanced exhaust maintain a consistent oxidizing condition. The result is a cleaner, more stable sintering process and better surface quality on the finished parts.

• Controlled Pre Oxidation Step: A metered air atmosphere and stable 600C zone deliberately oxidize the compact surface, stabilizing it before sintering and improving downstream atmosphere control.
• Residual Lubricant Removal: The gradual heating profile burns off lubricant and binder residues gently, reducing the risk of carbon deposits, blistering and surface defects during sintering.
• Compact Production Design: With a modest 4000mm length and 24kW installed power, the furnace adds a continuous pre oxidation stage without a large footprint or high energy demand.
• Uniform 600C Processing: Three heating zones with independent PID control maintain plusmn 3C uniformity, ensuring that every compact receives the same pre oxidation treatment.
• Slow, Adjustable Belt Speed: The inverter drive offers belt speeds from 20mm to 150mm per minute, letting operators tune residence time to different compact thicknesses and binder systems.
• Sintering Line Integration: The furnace is designed to feed directly into a downstream mesh belt sintering furnace, allowing pre oxidation and sintering to run as one continuous automated flow.

This pre oxidation mesh belt furnace is used in powder metallurgy production lines ahead of the sintering furnace, where compacts based on iron, copper and alloyed steel powders require a controlled oxidation step to improve sintering behaviour and surface quality. It also finds application in the pre heating and cleaning of parts that carry organic residues before high temperature processing, and in the preparation of certain ceramic and hard metal compacts. Producers of PM structural parts, bearings and hard metal blanks use it to stabilize their sintering process, reduce rejects caused by carbon contamination and obtain cleaner finished surfaces at continuous production rates.

Each furnace is fully assembled and tested at our works before shipment, and the air and exhaust circuits are verified to confirm stable atmosphere control. The delivery includes the furnace main unit, inspection certificates, a complete technical document set and spare heating modules and thermocouples. Compact and robust, the equipment is packed in wooden cases with moisture and shock protection for international transport. Our engineers provide on site installation guidance, commissioning and process support for your compaction and sintering line, and the furnace is covered by a defined warranty with reliable service.

Please provide the compact material and thickness, the binder system, the required throughput and the downstream sintering conditions, and we will confirm the zone arrangement, belt speed range and exhaust capacity. We will then issue a technical proposal, layout drawing and commercial quotation. Minimum order quantity is one unit, payment terms are T/T, and typical delivery is 55 to 85 days. Contact us today for a pre oxidation solution matched to your PM production line.