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Pusher Furnace 

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Introduction

Kerone’s Pusher Furnaces are continuous, high-capacity industrial furnaces in which batches of material — loaded on trays, baskets, or directly pushed as bars and billets — are mechanically advanced through the furnace tunnel by a hydraulic or electromechanical pusher mechanism at the entry end. Each time a new tray or batch is pushed in at the entrance, the entire column of trays advances by one position, and the frontmost tray exits the furnace at the discharge end. This positive-displacement, queue-based movement through precisely controlled temperature zones ensures that every batch receives an identical, repeatable thermal treatment, making Pusher Furnaces ideal for medium to high-volume heat treatment, sintering, hardening, and tempering operations. Kerone’s Pusher Furnaces are engineered for durability, thermal efficiency, and seamless integration into automated heat treatment production lines.

Why Choose Kerone Pusher Furnace

Kerone’s Pusher Furnaces are the preferred choice for industrial heat treaters who require high production throughput, consistent process repeatability, and low per-piece processing costs. Kerone’s engineering team designs each Pusher Furnace with optimized tray size, furnace tunnel width, zone length distribution, and pusher cycle timing to maximize production throughput while ensuring the required thermal profile for your specific heat treatment process. The heavy-duty hydraulic pushing systems and tray guide rails are designed for millions of push cycles, ensuring long operational life with minimal maintenance. Atmosphere-controlled versions incorporate gas-tight sealing systems at both entry and exit, maintaining protective atmospheres throughout the processing cycle. Kerone’s full-scope supply — from furnace mechanical design to control systems, gas management, and process optimization — simplifies project execution and ensures optimum performance.

Types and Features of Pusher Furnace

Kerone’s Pusher Furnace product range includes Atmosphere Pusher Furnaces for sintering, brazing, and annealing in controlled gas atmospheres; Hardening and Tempering Pusher Furnace lines for continuous heat treatment of components; High-Temperature Pusher Furnaces for refractory and ceramic sintering up to 1700°C; Ceramic Tray Pusher Furnaces for electronic components and advanced ceramic processing; Slab and Billet Reheating Pusher Furnaces for hot rolling mills; and Powder Metallurgy Sintering Pusher Furnaces for continuous PM component production. Variable pusher cycle control, multi-zone temperature management, and integrated quench systems are standard or available as options.

Key Features

  • Positive displacement pusher mechanism ensures all batches receive identical thermal treatment
  • High production throughput with cycle times adjustable from minutes to hours per push
  • Heavy-duty hydraulic or electromechanical pusher systems rated for millions of operating cycles
  • Multi-zone temperature control for precise thermal profile from entry preheating to exit
  • Controlled atmosphere capability with nitrogen, hydrogen, endothermic gas, or vacuum provisions
  • Low tray/basket height minimizes internal furnace volume and reduces energy consumption
  • Automatic pusher interlock systems prevent overcrowding and tray collisions in the tunnel
  • Seamless integration with automated loading stations, quench tanks, and tempering systems

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Our advanced AI, ML, and IoT technologies, this solution delivers smarter automation, real-time insights, and predictive intelligence to enhance efficiency and drive future-ready growth.

Real-Time Monitoring & Control

Continuous tracking of process parameters with instant adjustments.

Predictive Maintenance

Intelligent fault detection to prevent failures before they occur.

Adaptive Process Optimization

Dynamic tuning of operations for maximum output and efficiency.

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Unified access to real-time insights and performance trends.

Energy & Resource Savings

Smarter utilization of energy to cut costs and reduce waste.

Secure IoT Connectivity

Encrypted data flow with seamless integration across plant systems.

Applications of Pusher Furnace

Kerone’s Pusher Furnaces are extensively used in industries requiring continuous, high-volume, repeatable thermal processing of components in trays or baskets. Typical applications include:
    • Continuous sintering of powder metal (PM) components including structural parts, filters, and bearings
    • Continuous bright annealing of stainless steel, copper, and brass strip or components
    • Hardening and carburizing of automotive gears, shafts, and fasteners in high-volume production
    • Firing of multilayer ceramic capacitors (MLCCs), ferrite cores, and electronic ceramic components
    • Continuous brazing and soldering of heat exchangers, radiators, and precision assemblies
    • Slab and billet reheating for hot rolling mills in the steel and non-ferrous metals industries
Kerone’s Pusher Furnaces deliver reliable, high-throughput continuous thermal processing for industrial manufacturers who demand consistent product quality and maximum production efficiency. The positive-displacement batch advancement principle, combined with precise multi-zone temperature control and robust atmosphere management, ensures that every component processed in a Kerone Pusher Furnace receives the exact thermal treatment required for optimal metallurgical properties. Whether you are running a powder metallurgy sintering line, a ceramic component firing operation, or a high-volume heat treatment facility, Kerone’s Pusher Furnace technology is the backbone of efficient, reproducible thermal processing at scale.

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Frequently Asked Questions (FAQ)

  • In a Pusher Furnace, trays or batches are moved by a pusher mechanism at the entry end, advancing the entire column of trays forward by one position per cycle. Belt furnaces use a continuous moving belt. Pusher furnaces are suited for heavier loads, higher temperatures, and taller product stacks, while belt furnaces are better for smaller, flat components at moderate temperatures.

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