The 76 Unit Dual Station Unwinding Machine is a high-performance hydraulic expansion and contraction system specifically engineered for welded pipe production lines. By integrating a dual-station design, this equipment streamlines the feeding process, allowing operators to clamp raw materials in one station while the other is actively running, effectively eliminating the downtime associated with traditional single-station loading.
Designed for maximum stability and safety, the machine utilizes advanced hydraulic drive systems to lift, tighten, and rotate steel coils with precision. This semi-automatic operation not only reduces labor intensity and production noise but also significantly enhances the overall success rate of the final product through durable construction and a low failure rate.
Detailed Parameters
| Expansion Range | 430-530mm (100mm stroke) | Strip Width | 60-250mm |
|---|---|---|---|
| Center Height | 1150mm | Shaft Diameter | ￠150mm (Inner hole ￠65mm) |
| Shaft Material | 42CrMo (Spring Steel) | Front Bearing | Self-aligning roller bearing 23130 |
| Rear Bearing | 352026 Bearing | Expansion Cylinder | 140/60 105 Long rod cylinder |
| Hydraulic Motor | 1 BM3-500 J shaft (Speed regulated) | Main Motor Power | 7.5kw (Vane pump, 25 displacement) |
Key Advantages
Enhanced Safety
Hydraulic expansion and contraction ensure steel coils are securely fixed on the turntable during high-speed feeding.
Dual-Station Efficiency
Pre-clamp materials in one station while the other runs, removing "one material, one loading" delays.
Premium Durability
Utilizes 42CrMo spring steel for the uncoiling shaft, providing exceptional strength and toughness.
Precision Control
Hydraulic advance and retreat blocking devices prevent material roll loosening for a stable feed.
Semi-Auto Operation
Hydraulic cylinder pressing motors automate the material disc rotation, reducing manual labor.
Low Failure Rate
Simplified mechanical design ensures long-term reliability and minimal maintenance requirements.
Product Gallery
Management Platforms
Material Handling
Optimized coil feeding and storage for high-speed welded pipe production.
Hydraulic Control
Precision regulation of expansion, contraction, and rotation via hydraulic motor.
Noise Reduction
Advanced mechanical cushioning effectively lowers operational noise levels.
Safety Locking
Hydraulic positioning pins and braking systems ensure total operational security.
Modular Adjustability
Supports large aperture raw materials through the addition of precision shims.
Workflow Optimization
Semi-automatic mechanical operations reduce worker fatigue and stress.
Investment Return Comparison
| Performance Metric | Single Station Machine | Dual Station Machine |
|---|---|---|
| Loading Downtime | High (Stop-and-Load) | Very Low (Concurrent) |
| Labor Intensity | High Manual Effort | Semi-Automatic / Low |
| Production Speed | Standard | Accelerated |
| Material Stability | Basic | High (Hydraulic Locking) |
| Operational Cost | Higher per unit | Lower via efficiency |
Frequently Asked Questions
The dual station design allows one coil to be clamped and prepared while the other is being processed, eliminating the waiting time between rolls and significantly increasing production throughput.
For raw materials with apertures larger than the standard range, the machine is designed to accommodate adjustments by adding shims to the expansion mechanism.
We use 42CrMo spring steel, which is chosen for its superior strength, hardenability, and toughness, ensuring the shaft can withstand heavy loads without deformation.
Rotation is driven by a hydraulic motor and slewing support bearing, while a hydraulic cylinder pressing motor facilitates the leading out of the material head.
The equipment is equipped with a hydraulic advance and retreat blocking device on the working side to maintain tension and prevent the coil from loosening.
Yes, it is designed to handle a versatile range of strip widths from 60mm up to 250mm, making it suitable for various welded pipe specifications.
