Description of Hydraulic Shaftless Mill Roll Stand Machine
The Hydraulic Shaftless Mill Roll Stand Machine is designed as a high-torque, fluid-powered solution for the systematic support and positioning of fluting paper rolls within industrial corrugated manufacturing. By eliminating the need for traditional center shafts, this system streamlines the loading process and maximizes operational efficiency. The architecture centers on an integrated hydraulic power unit that manages all critical roll-handling maneuvers, ensuring that heavy paper stocks are clamped, elevated, and aligned with the precision required for high-speed, continuous-run production lines.

Machine Features
- Load Capacity: Engineered to support a maximum roll weight of 3,000kg, ensuring stability for even the densest paper cylinders.
- Operational Range: Accommodates effective paper widths from 900mm to 2,200mm.
- Substrate Capacity: Compatible with large-format paper rolls up to 1,500mm in diameter.
- System Actuation: Full hydraulic control for all mechanical movements, including clamping, lifting, lowering, and centering, driven by high-output hydraulic motors.
- Tension Management: Flexible configuration supporting either manual tensioning or pneumatic brake-assisted web control for optimal paper feeding.
Engineering & System Architecture
This unit features a sophisticated, symmetrical four-arm configuration capable of hosting two paper rolls simultaneously. This dual-station setup is essential for maintaining non-stop production workflows, allowing for rapid roll changeovers without requiring a total shutdown of the corrugating process. All mechanical actions-including the high-pressure clamping of the roll cores, vertical lift/descent, and lateral center-positioning-are executed through dedicated hydraulic actuators. This hydraulic reliance ensures a level of structural rigidity and force management that manual or purely electric systems struggle to replicate under extreme loads.
To manage web integrity during the unwinding phase, the Hydraulic Shaftless Mill Roll Stand Machine incorporates a robust tension control system. Depending on the specific configuration, operators can utilize manual or precision pneumatic braking assemblies to apply consistent drag, effectively preventing web slack or tension-induced tears. The heavy-duty design of the stand is capable of supporting rolls up to 3 tons, making it an ideal choice for facilities processing large-diameter, high-basis-weight paper stocks.

Main Technical Parameters
| Range of Paper Width | 800-2500mm |
| Paper Roll Diameter | Φ350-1500mm |
| Max. Weight of One Side | 5000kg (wall thickness: 45mm) |
| Main Shaft Diameter | Φ240mm (wall thickness: 55mm) |
| Working Pressure of Air Source | 0.6-0.9 MPa |
| Power Supply | 380V, 50Hz, 11kw |
| Overall Dimensions (L×W×H) | 4550 ×1600 ×1650mm |
| Working Pressure of Hydraulic Cylinder | 12-16 MPa |
| Working Range of Hydraulic Cylinder (swing) | Φ100mm ×460mm |
| Diameter of Hydraulic Cylinder (clamping) | Φ63mm ×720mm |
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