The Lawnmower Blade & Bolt Set PR S/Cros is a high-performance cutting and mounting assembly engineered for precision turf management. Specifically designed for Southern Cross and compatible mowing decks, this set includes a pair of industrial-grade swing blades and the high-tensile mounting hardware required for a complete mechanical refresh. The system is optimized to maintain rotational balance and aerodynamic lift, ensuring a clean, uniform cut while protecting the mower's drive shaft from undue kinetic stress.
Mechanical Engineering and Material Dynamics
- Hardened Alloy Steel Fabrication: Each blade is forged from heat-treated alloy steel, specifically tempered to retain a sharp cutting edge under high-velocity impact. This metallurgical selection provides the necessary toughness to resist chipping when encountering small stones or hidden garden debris.
- Swing-Back Safety Design: The "S/Cros" configuration utilizes a swing-back blade dynamic. This allows the blades to pivot backward upon striking a solid object, absorbing the impact energy and preventing the mechanical shock from being transmitted directly to the engine crankshaft.
- Precision-Matched Bolt Kit: The included mounting bolts and nuts are manufactured to high-tensile specifications to withstand the centrifugal forces and shear stresses of high-RPM operation. The hardware is calibrated for a secure fit, ensuring the blades remain perfectly aligned to eliminate mechanical wobble.
- Aerodynamic Lift Geometry: The blade profile is engineered to create a high-velocity vortex during rotation. This suction pulls the grass upright for a precision cut and facilitates efficient discharge, preventing the "clumping" that can lead to deck clogging and engine strain.
Professional Applications
- Commercial Landscaping: Ideal for professional contractors requiring reliable, high-endurance cutting components that can withstand the rigors of daily use across large residential and commercial properties.
- Public Parkland Maintenance: Suited for the upkeep of expansive municipal greenbelts and parklands where a high-quality finish and equipment safety are critical operational requirements.
- Small Engine Repair Workshops: Frequently utilized as a standard-grade replacement kit for restoring the original factory-spec cutting performance of Southern Cross mowers.
- Heavy-Duty Residential Mowing: Provides an industrial-grade upgrade for domestic users seeking a more durable and efficient cutting solution than standard retail alternatives.
Technical Summary
- Compatibility: Precision-engineered for Southern Cross (S/Cros) and compatible mowing decks.
- Component Count: Two (2) Precision-Ground Blades and matching Bolt/Nut Set.
- Material Composition: Heat-Treated Industrial Alloy Steel.
- Safety Profile: Swing-back mechanism for crankshaft and engine protection.
Designed for professional-grade reliability and long-term service, the Lawnmower Blade & Bolt Set PR S/Cros is a foundational component for high-efficiency lawn care. Its combination of metallurgical strength and safety-conscious mechanical design provides a dependable, low-maintenance solution for high-value garden and landscaping infrastructure.
