The 76 Unit Dual Station Hydraulic Unwinding Machine is a high-performance feeding solution engineered specifically for welded pipe production lines. By integrating a sophisticated hydraulic expansion and contraction system, this equipment ensures that steel coils are lifted, tightened, and securely fixed on the turntable, providing maximum stability during high-speed feeding operations while significantly reducing operational noise and physical labor.
Designed to eliminate the bottlenecks of traditional single-station setups, the dual-station configuration allows operators to clamp new raw materials in advance while the current station remains in operation. This semi-automatic workflow optimizes production cycles, reduces idle time, and transforms a traditionally strenuous manual process into a streamlined, efficient mechanical operation that enhances overall plant safety and productivity.
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 |
| Rotation Drive | Hydraulic Motor (180° rotation) | Power System | 7.5kw Motor / Vane Pump (Disp. 25) |
Key Advantages
Enhanced Safety
Hydraulic tightening and blocking devices prevent material loosening, ensuring a secure grip during high-speed feeding.
Zero Downtime
Dual-station design enables pre-loading of the next coil while the first is running, eliminating "one material, one loading" delays.
Premium Durability
Utilizing 42CrMo spring steel for the shaft provides superior strength, toughness, and exceptional hardenability.
Semi-Auto Operation
Hydraulic cylinders and motors automate the feeding and rotation process, drastically reducing worker fatigue.
High Success Rate
Precise hydraulic control improves product consistency and lowers failure rates compared to manual unwinding.
Simple Maintenance
Designed with standardized bearings and a robust vane pump system for low failure rates and easy servicing.
Product Gallery
Management Platforms
Material Prep
Pre-clamp components on the standby station to ensure seamless material transition.
Hydraulic Control
Precision regulation of expansion/contraction for various coil inner diameters.
Load Monitoring
Real-time stability monitoring via hydraulic pressure holding mechanisms.
Speed Regulation
Adjustable hydraulic motor speeds to match the production line pace.
Positioning System
Hydraulic positioning pin axis ensures accurate alignment for every coil.
Braking Logic
Integrated electric-hydraulic braking for immediate and safe stop operations.
Investment Return Comparison
| Performance Metric | Traditional Single Station | 76 Unit Dual Station |
|---|---|---|
| Material Loading Time | High (Sequential) | Low (Concurrent) |
| Labor Intensity | High Manual Effort | Low Semi-Automatic |
| Production Uptime | Intermittent | Continuous Flow |
| Operational Noise | Significant | Optimized/Low |
| Material Waste | Higher (due to looseness) | Minimal (secure grip) |
Frequently Asked Questions
42CrMo is a high-strength spring steel that offers excellent hardenability and toughness, ensuring the shaft can withstand heavy loads and repeated expansion cycles without deformation.
It allows for a "buffer" system where one coil is fed into the line while the next is being loaded and clamped, eliminating the downtime associated with changing material rolls.
Yes, while the standard expansion range is 430-530mm, materials with larger apertures can be accommodated by adding shims for adjustment.
This device prevents the material roll from loosening or unspooling unintentionally on the working side, ensuring a safe and controlled feeding process.
Regular checks of the 7.5kw motor, oil levels in the vane pump, and inspection of the self-aligning roller bearings are recommended to ensure long-term durability.
Yes, the rotation is driven by a hydraulic motor and a slewing support bearing, while feeding is managed by a hydraulic cylinder pressing motor for efficient lead-out.
