Sucker Rod Quenching Machine | Induction Heat Treatment Equipment

Yuantuo’s Long Rod Quench & Temper Line is a fully automated, induction-based heat-treating system for steel bars, threaded rods/lead screws, sucker rods and similar long workpieces. Medium-frequency induction precisely shapes the heating curve, keeping the surface-to-core delta within ±10 °C for uniform metallurgy. A PLC/HMI platform closes the loop across heating, high-pressure spray quenching and tempering/equalizing, while modular inductors and stainless-steel quench/temper tanks support fast changeovers, stable throughput and consistent results part after part.

Description

Sucker rod quenching equipment is designed for the heat treatment of oilfield sucker rods using induction quenching technology.

Also known as a sucker rod quenching machine, sucker rod quenching production line, or sucker rod induction quenching system, this solution provides uniform hardness, consistent mechanical properties, and high production efficiency.

Modern systems are typically configured as a fully automatic sucker rod quenching and tempering line, integrating heating, quenching, tempering, into one continuous process.

🔹 Heat Treatment Requirements for Sucker Rods

Sucker rods are used in oil extraction and must withstand:

* Cyclic tensile and compressive loads
* Fatigue stress
* Wear and corrosion environments

Therefore, heat treatment must ensure:

* High strength and yield strength
* Good toughness and elongation
* Uniform hardness along the rod

 

🔹 Induction Q&T Solution for Sucker Rods

The sucker rod induction quenching equipment adopts medium-frequency induction heating combined with spray quenching and tempering:

* Rapid heating to quenching temperature
* Immediate water cooling (quenching)
* Controlled tempering for toughness
* Online straightening after heat treatment

 

 

🔹 Sucker Rod Quenching Production Line Configuration

A complete sucker rod quenching production line includes:

1. Automatic loading system
2. Feeding and conveying system (forward + rotation)
3. Induction heating system
4. Quenching system (water sleeve / spray)
5. Straightening mechanism
6. Discharge system
7. Closed-loop cooling system

🔹 Key Technical Features

1. Uniform Heating & Hardness

* Consistent temperature along the rod
* Uniform hardness between rod body and head

 

2. Integrated Straightening System

* Straightening completed during heat treatment
* No additional straightening machine required

3. Rotational Conveying System

* Rod moves forward and rotates simultaneously
* Ensures uniform heating and quenching

4. Intelligent Power Control

* Power automatically decreases when no workpiece is present
* Power increases automatically when rods enter the coil

5. Reduced Oxidation

* Optimized distance between coil and quenching ring
* Short exposure time at high temperature

6. Full Automation

* PLC control system
* Automatic feeding, heating, and discharge
* Process parameter storage

🔹 Applicable Range

This sucker rod automatic quenching production line is suitable for:

* Solid sucker rods: Φ16–32 mm
* Hollow sucker rods: Φ32–42 mm
* Steel tie rods: Φ20–85 mm

Widely used in:

* Oilfield sucker rod manufacturing
* Steel rod processing plants

🔹 Equipment Configuration

* Medium-frequency induction power supply
* Capacitor cabinet
* Induction heating coils
* Automatic feeding rack
* Discharge system
* Straightening mechanism
* PLC control cabinet
* Closed-loop cooling system

The compact design improves heating efficiency and system stability.

 

🔹 Technical Specifications

* Heating method: medium-frequency induction
* Temperature range: adjustable (quenching )
* Power: customizable
* Control system: PLC or PLC + HMI
* Operation: fully automatic

🔹 Advantages

* Uniform mechanical properties
* Integrated heat treatment + straightening
* High automation and efficiency
* Reduced oxidation and energy consumption
* Stable and repeatable process

This system ensures high-quality sucker rods suitable for demanding oilfield applications.

 

The sucker rod quenching equipment (also known as sucker rod quenching machine, sucker rod quenching production line, or sucker rod induction quenching system) provides:

Integrated quenching, tempering, and straightening
Uniform hardness and stable performance
Automated and efficient production
Reliable operation for oilfield applications

It is an ideal solution for manufacturers requiring high-quality and consistent sucker rod heat treatment.