Horizontal Centerless Induction Hardening Machine for Long Shafts & Bars
In the fast-paced world of precision metal heat treatment, the Horizontal Centerless Induction Hardening Machine stands out as an innovative solution, revolutionizing surface hardening for cylindrical and tubular workpieces. Tailored to meet the rigorous demands of industries like automotive transmission, bearing manufacturing, hydraulic component production, and electrical motor engineering, this cutting-edge equipment combines the efficiency of induction heating with the flexibility of centerless design—delivering unmatched consistency, speed, and cost-effectiveness for high-volume and precision-critical applications.
Unlike conventional hardening systems that require workpiece clamping or fixturing, the centerless design of this machine eliminates the need for mechanical holding. Instead, it uses precision guide rollers to support and rotate workpieces (such as bearings, sleeves, pins, and thin-walled tubes) during the hardening process, minimizing deformation, avoiding clamping marks, and ensuring uniform heat distribution across the entire workpiece surface. The horizontal configuration further enhances operational efficiency: it enables seamless integration into automated production lines, simplifies continuous feeding and discharging of parts, and accommodates long or slender workpieces that might be challenging for vertical systems.
Whether you’re aiming to boost production throughput, improve part quality consistency, or reduce post-hardening finishing work, the Horizontal Centerless Induction Hardening Machine is a reliable, future-focused investment that elevates your manufacturing capabilities.
- ZH 500
- ZH 1300
- Hardening cycle one piece at a time
- Integrated automatic loading system
- Workpiece length from 80 to 500 mm
- Workpiece diameter up to 60 mm
- Horizontal scanning length up to 800 mm
- Scanning speed up to 48 m/min
- Adjustable rotation speed
- Workpiece guide between tip and tailstock
- Load store length 800 mm
- Integrated quenching fume extraction
- Recommended power: 100 kW
- PLC + Industrial computer control system
- User-friendly HMI (Human-Machine Interface)
- Hardening cycle two pieces at a time
- Integrated automatic loading system
- Workpiece length from 80 to 1300 mm
- Workpiece diameter up to 40 mm
- Horizontal scanning length up to 1600 mm
- Scanning speed up to 48 m/min
- Adjustable rotation speed
- Load store length 800 mm
- Integrated quenching fume extraction
- Recommended power: 150 kW
- PLC + Industrial computer control system
- User-friendly HMI (Human-Machine Interface)
Power Supply for Induction Heating
IGBT converter series equipped with DSP-based control systems
- High Digital Advantages：Digital control replaces over 70% of traditional electronic hardware. The software enabling command transmission, parameter regulation, operational control, and system protection delivers higher precision and more sophisticated functions.
- User-Friendly O&M Design：The integrated keyboard supports rapid and accurate diagnostics, covering the operating status of all electronic components and cooling systems. A series resonant circuits enable automatic tuning and eliminating the need for manual adjustment when replacing inductors.
- High Adaptability & High Power：With a quality factor (Q-Factor) exceeding 2, it offers strong flexibility, supporting various inductors (both single-coil and multi-coil configurations) while delivering maximum output power.
Core Specifications:
- Output power ranging from 10 kW to 500 kW
- Operating frequency spanning from 100 Hz to 100 kHz
Optional Configurations:
- Dual-output design, supporting manual or automatic switching functionality
- Frequency switching module (high/medium/low), enabling a standard operating frequency reduction of up to 50%
Standard Equipment for All Models:
- Supply transformer
- Chopper voltage regulator integrated with IGBT transistors
Control Systems
A specialized Software Department (SD) is solely responsible for the design and development of complete command and control systems for machines and processes.
- User-Friendly HMI：The SD focuses on creating intuitive human-machine interface (HMI) software, tailored for unskilled operators to ensure easy operation.
- Safe Operation：Throughout the design process, the SD prioritizes and guarantees safe operating conditions at all times.
Hardware Options
- PLC + Operator Panel, suitable for simple applications
- PLC + Axes Control Unit + Industrial PC, suitable for more complex and advanced machines
- PLC + CNC, suitable for machines with specific functions or multi-axis interpolation capabilities
Software Options:
- Programmable logic (PLC) software, always accompanied by comments
- Human-machine interface (HMI) softwares running on the Windows OS for industrial computers are designed according to machine types with dedicated softwares
- CNC-based applications utilize the ISO language
Control Levels
| Basic | Heating energy control and quenching shower flow control |
| Middle | Heating energy control, oscillation frequency, quenching shower flow, and quenchant temperature control |
| Advanced | Heating energy control, voltage control, current control, frequency control, quenching shower flow control, quenchant temperature control, and inductor collision detection |
| Custom | The number of control channels is selected based on the safety level requirements of the process and product. |
Cooling Systems
GSC Cooling System
GSC systems, designed based on machine power and process type, represent the optimal solution for ensuring proper cooling of electrical components.
A typical GSC system consists of the following components:
A typical GSC system consists of the following components:
- Stainless steel tank equipped with a minimum level sensor
- Water-to-water heat exchanger in stainless steel
- Main cooling pump made of stainless steel
- Magnetic flow sensors with on-board adjustable alarm set points
Optional Components
- Automatic shutdown function to reduce industrial water consumption
- Automatic antifreeze system and automatic anti-condensation system
- Automatic water conductivity detection system
- Additional pump for high-pressure inductor feeding
GLT Cooling System
Inappropriate quenching, particularly in hardening processes, often results in suboptimal metallurgical outcomes. Additionally, inadequate filtration of the quenchant mixture constitutes a critical factor that must be addressed to ensure proper machine operation and consistent process results.
The CLT systems, designed based on power supply specifications and process type, serve as the optimal solution for achieving proper workpiece quenching.
A typical CLT system comprises the following components:
The CLT systems, designed based on power supply specifications and process type, serve as the optimal solution for achieving proper workpiece quenching.
A typical CLT system comprises the following components:
- Stainless steel tank equipped with a level sensor
- Stainless steel cooling pump
- Water-to-water heat exchanger in stainless steel
- Stainless steel shower pump
- Automatic workpiece temperature stabilization system
- Automatic filtration system
Optional Components
- Additional magnetic filtration section
- Automatic pre-heating system based on a weekly schedule
- Automatic system for removing suspended oil
- Automatic quenchant mixture type selection system (applicable when two or more CLT systems are in use)
- Automatic shutdown function to reduce industrial water consumption
Get in touch right now for solutions meeting your specific needs!
headquarter
Zching Induction
Shanghai based development and research center
