Necking Machine
Shrinking Machine / Necking Machine for Tank Heads
Your reliable forming solution for pressure vessel manufacturing, tank head production, and cylindrical workpiece processing.
Application of Shrinking Machine
The shrinking machine (necking machine) is designed for precision shrinking of tank heads used in:
- Pressure vessels
- Gas storage tanks / air tanks
- Solar water heater tanks
- Oil & chemical storage tanks
- Boiler and heat exchanger manufacturing
- Food, pharmaceutical and beverage containers
The forming process is efficient and stable. The machine does not require head replacement during shrinking, greatly improving productivity and consistency. It delivers excellent roundness, smooth forming results, and significantly enhances assembly efficiency compared to traditional butt-joint methods.
Description of the Shrinking / Necking Machine
The automatic hydraulic shrinking and flaring machine is a dedicated forming system used to shrink or flare the ends of cylindrical workpieces. The equipment integrates advanced hydraulic technology and imported PLC control to deliver high forming precision and long-term stability.
Main Features
- High production efficiency with uniform shrinkage
- Imported PLC for stable automation and intuitive control
- Strong forming capability for various metal materials
- Simple operation, suitable for operators of all skill levels
- High rigidity structure ensures long equipment life
- Customizable diameter and thickness range
Machine Structure
- Machine base
- Support arm
- Hydraulic power station
- Rolling mold forming system
- PLC electrical control system
Technical Specifications
| Item | Specification |
|---|---|
| Material Thickness | 2–8 mm |
| Diameter Range | 200–1000 mm (customizable) |
| Material | Carbon steel, stainless steel, aluminum & aluminum alloy |
| Minimum Arc Radius | 250 mm |
| Cutting & Spinning Speed | 0–4000 m/min (line speed) |
| Hydraulic System Pressure | 16 MPa |
| Main Motor Power | 11 kW |
| Workpiece Fixing Mode | Vacuum chuck |
Why Choose Our Shrinking Machine?
- Factory-direct price with full customization
- High forming accuracy and excellent roundness
- Low energy consumption, high reliability
- Easy maintenance with durable hydraulic components
- Supports a wide range of tank head sizes
Packaging & Shipping
All shrinking machines are packaged in reinforced export-grade wooden cases or steel frames to ensure safe delivery. We support:
- Sea freight (FCL / LCL)
- Rail transport
- Air freight (on request)
- Door-to-door delivery to major markets
After-Sales Service
- 12-month warranty for the whole machine
- Lifetime technical support
- Remote diagnosis and troubleshooting
- Online training for operation & maintenance
- Engineers available for overseas service
About Dalian Jiuying Machinery Equipment Co., Ltd.
Founded in 2012, Dalian Jiuying Machinery Equipment Co., Ltd. specializes in manufacturing head forming machines, dish end equipment, spinning machines, shrinking machines, and complete production lines. Our products are widely exported to:
USA, Italy, Russia, Vietnam, Mongolia, Turkey, India, UAE, Algeria, Philippines, Indonesia, Malaysia, Bangladesh, South Africa, Germany, Slovakia, Sri Lanka, and more.
We are committed to quality, innovation, and integrated manufacturing solutions for global customers in pressure vessel, boiler, petroleum, food machinery, and tank fabrication industries.
Contact Us
Dalian Jiuying Machinery Equipment Co., Ltd.
Mob/WhatsApp: 0086-133-2220-2758
Email: liu@weldcnc.com
WeChat: 13322202758
