Spurs Marine Equipment
Propeller Mounted Cutter System
Line and net cutter for medium and large vessels with rotating blades on the propeller hub and a stationary blade on the rope guard or strut; hubs from 12″ (300 mm).
Description
The Spurs propeller-mounted system uses the propeller's rotational force to cut lines and nets before they wind between the hub and rope guard. Rotating cutter blades fixed to the propeller hub guide the line to a stationary cutter on the rope guard or strut; a cam action pushes the stationary cutter outward to shear the obstruction, and the blades never collide.
Key features
- Made of 17-4 PH stainless steel, Rockwell hardness 43
- Hydrophilic and bronze bearings maintain cutter positioning
- Cuts in forward or reverse
- Prevents line and net intrusion into aft oil seals, avoiding oil leaks and unscheduled dry-docking
- Rope guard minimum thickness of ¾″ (19 mm) required
- Drawings available for fixed pitch and controllable pitch propeller installations
Applications
Medium and large commercial and naval vessels with propeller hubs of 12″ (300 mm) and larger. Approved by ABS and used by the US Navy and commercial fleets.
Specifications
| Propeller hub size | 12″ (300 mm) and larger |
|---|---|
| Material | 17-4 PH stainless steel |
| Hardness | Rockwell 43 |
| Rope guard minimum thickness | ¾″ (19 mm) |
| Models | A through F4 |
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