Since 1994, SINOTEST has been a leading developer of advanced automatic straightening solutions for the metal manufacturing industry. Designed to restore the geometric accuracy of long metal components, these intelligent systems efficiently eliminate bends, distortions, and deformations caused by heat treatment, welding, casting, forging, machining, and other manufacturing processes.
By applying precisely controlled corrective forces and automatically adjusting the straightening position, SINOTEST straightening machines deliver exceptional accuracy, high productivity, and fully automated operation for a wide range of workpieces and industries.
Why Choose SINOTEST Automatic Straightening Machines?
Modern manufacturing demands increasingly stringent dimensional tolerances and product consistency. SINOTEST's intelligent straightening technology combines high-precision measurement systems, servo-controlled loading, and self-learning algorithms to automatically identify deviations and apply the optimal corrective force.
The result is improved product quality, reduced labour requirements, increased production efficiency, and repeatable straightening performance across a diverse range of components.
Key Features
- Straightening capacities from 20 kN to 20,000 kN
- Servo loading capacity up to 1,200 kN
- Fully automatic operation
- Intelligent self-learning control system
- High-precision measurement and correction
- Straightening accuracy up to 0.015 mm
- Suitable for workpieces up to 15,000 mm in length
- Remote diagnostics and maintenance support
- Adaptable to a wide variety of product shapes and materials
- Production rates up to 600 parts per hour (single-point straightening)
Typical Applications
SINOTEST straightening systems are widely used across numerous industries, including:
- Textile machinery
- Automotive passenger vehicles
- Commercial vehicles
- Rail transport
- Industrial transmission systems
- Electromechanical equipment
- Defence and military manufacturing
- Petrochemical industries
- Construction machinery
- Aerospace and aviation
Suitable Workpieces
The systems are designed to straighten a broad range of metal components, including:
- Camshafts
- Crankshafts
- Gear shafts
- Drive shafts
- Axle shafts
- Piston rods
- Drilling rods
- Rollers
- Spindles
- Guide rails
- Barrels
- Gear rings
- Bearing rings
- Custom-engineered components
Technical Specifications
| Parameter | Specification |
|---|---|
| Straightening Capacity | 20 – 20,000 kN |
| Maximum Servo Loading | 1,200 kN |
| Maximum Workpiece Length | 15,000 mm |
| Straightening Accuracy | Up to 0.015 mm |
| Straightening Efficiency | Up to 600 parts/hour |
Door-Type Automatic Straightening Machines
JJM Series – Mechanical Loading
JEM Series – Hydraulic Loading
The Door-Type Series is designed for high-capacity straightening applications requiring maximum rigidity and force. Available with capacities up to 20,000 kN, these systems are ideal for large shafts, heavy industrial components, and demanding production environments.
Features
- Capacity up to 20,000 kN
- Mechanical or hydraulic loading options
- Fully automatic operation
- High adjustment accuracy
- Suitable for multiple product types
- Intelligent self-learning technology
- Remote maintenance and technical support
C-Type Automatic Straightening Machines
JJC Series – Mechanical Loading
JEC Series – Hydraulic Loading
The C-Type Series provides excellent accessibility and flexibility for medium-sized workpieces while maintaining exceptional straightening precision and productivity.
Features
- Mechanical or hydraulic loading options
- Fully automatic operation
- High adjustment accuracy
- Adaptable to various component geometries
- Intelligent self-learning functions
- Remote diagnostics and maintenance support
YW Series Ring Straightening Machines
Designed specifically for ring-shaped components, the YW Series delivers precise straightening through rotational measurement technology and servo-controlled operation.
Features
- Capacity range: 100 kN – 500 kN
- Mechanical loading system
- Fully automatic operation
- High-precision correction
- Rotational measurement technology
- Servo motor drive
- Intelligent self-learning capabilities
- Remote maintenance assistance
Ideal for bearing rings, gear rings, and other circular components requiring precise dimensional correction.
Industry-Leading Straightening Technology
Combining decades of engineering expertise with advanced automation, SINOTEST Automatic Straightening Machines help manufacturers improve product quality, reduce scrap rates, increase throughput, and achieve consistent geometric accuracy across even the most demanding applications.