The SOS snag overload system is the first non-hydraulic snag protection for container cranes. It eliminates the danger of structural damage starting at the motor, which is beside the brake disc the major source of snag inertia load.  

In a snag overload case the Malmedie Safety Coupling (MSC) separates the motor drives and their high mass inertia from the gearbox instantly. PINTSCH BUBENZER safety brakes (SF) immediately catch the load and avoid a loss of rope. LiTec® operating brake discs reduce the inertia additionally.

• Malmedie safety coupling
• MSC PINTSCH BUBENZER LiTec® low inertia brake
• PINTSCH BUBENZER thruster service brake SB 28
• PINTSCH BUBENZER emergency brake SF with CMB force monitoring sensors (fast-setting execution)
• PINTSCH BUBENZER SOS PLC
• Malmedie drum coupling TTX

• MSC release time < 1 mx
• Snag protection completed in less than 100 ms
• Separate and independent SOS PLC, enclosure 600 x 600 x 300 mm retrofittable
• Manual reset of snag event after mandatory hoist inspection