Description
Round bar quenching equipment is designed for continuous heat treatment of round steel bars using induction heating and spray quenching technology.
Also known as a round bar quenching furnace, round bar quenching machine, or round bar surface hardening equipment, it is widely used to achieve uniform hardness, stable microstructure, and repeatable mechanical performance.
This system is especially suitable for large-diameter round bars and precision heat treatment applications.
🔹 What This Equipment Can Achieve
The round bar quenching equipment can perform:
* Rapid heating to quenching temperature (~950°C)
* Immediate spray cooling for quenching
* Continuous operation for high productivity
This ensures consistent hardness, reduced deformation, and stable heat treatment results.
🔹 Applicable Size Range
This round bar quenching machine is typically used for:
* Diameter: 60–150 mm (solid round bars)
* Length: 2.2–6 meters
* Materials: 45# steel, 40Cr, 42CrMo
🔹 Key Technical Features
✅ Multi-Stage Induction Heating Design
* Heating section
* Equalizing section
* Holding section
✅Uniform Hardness Control
* Entire bar hardness consistency
* Tight deviation control along length
✅ Rotational Conveying System
* Bars rotate while moving forward
* Ensures uniform circumferential heating
✅Closed-Loop Temperature Control
* Infrared temperature measurement
* PLC automatic power adjustment
✅ Flexible Inductor Configuration
* Multiple coils for different diameters
* Quick-change design
🔹 Process Flow
A typical round bar surface hardening equipment includes:
1. Automatic loading system
2. Induction heating section
3. Temperature detection (infrared)
4. Spray quenching system
5. Optional tempering section
6. Discharge and cooling
🔹 Technical Specifications
* Quenching temperature: ~950°C
* Diameter range: 60–150 mm
* Length: 2.2–6 m
* Production capacity: ~2 tons/hour (for 100 mm bars)
* Power range: 160–8000 kW
* Frequency: 100 Hz – 8000 Hz
🔹Equipment Configuration
* Medium-frequency induction power supply
* Induction heating coils (multi-set)
* Roller conveying system (rotational type)
* Spray quenching system
* Infrared temperature measurement system
* PLC control system
* Cooling water system
🔹Equipment Variants
This system can be configured as:
* Round bar quenching furnace
* Round bar quenching machine
* Round bar surface hardening equipment
* Round bar quenching equipment for large diameters
* Bar quenching machine tool
🔹 Advantages
* Fast heating and high efficiency
* Uniform hardness and microstructure
* Low oxidation and minimal decarburization
* High automation and stable operation
* Suitable for large-diameter round bars
Induction heating ensures repeatable, controllable, and efficient heat treatment performance.
The round bar quenching equipment (also known as round bar quenching furnace, round bar quenching machine, or round bar surface hardening equipment) provides:
* Reliable heat treatment for round bars
* Uniform hardness and structure
* Stable and automated production
* Flexible configuration for different sizes
It is an ideal solution for precision heat treatment of round steel bars, especially in large-size applications.
