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Southco New Product Alert: R4-30 Two-Stage Rotary Latch

Product Updates, Southco

New Corrosion-Resistant, Two-Stage Rotary Latch Eliminates False Latching Conditions

These robust latching solutions for doors and panels of heavy-duty equipment and vehicles combine rotary-action security with push-to-close convenience. Their compact design provides concealed operation, while tolerating misalignment on closing, engaging easily with low closing force, and latching firmly with a snug, secure fit.

Southco’s R4-30 Two-Stage Rotary Latch is constructed of high-strength, corrosion-resistant stainless steel, making these latches an ideal choice for enclosure applications exposed to demanding environments. The R4-30 series features a two-stage design that prevents false latching conditions in enclosure applications, and provides concealed latching for increased security and industrial design.

• High-strength, corrosion-resistant construction withstands the elements
• Two-stage rotor design prevents false latching
• Provides concealed latching with push-to-close convenience
• Allows remote actuation when paired with Southco cables and actuators

Durable materials, corrosion-resistant plating, and robust construction make these latches suitable for demanding environments. Easy operating mechanism and versatile actuation options make latches easy to adapt to a variety of installations.

• Compact latch envelope and cross-section fits thin-profile doors, minimizes protrusion within the enclosure
• Forgiving mating tolerance accommodates misalignment and flexing of long door panels or hoods
• In the closed position, latch fully envelopes striker bolt for secure grip and protection
• All-metal construction for durable, long-lasting performance
• Hardened steel cams and triggers provide durable latching engagement
• Stainless steel styles for use in marine and off-highway applications
• Corrosion-resistant finish minimizes danger of rust interfering with latch operation or staining door panel
• Many styles compatible with single and multi-point remote actuation using cables or mechanical linkage

Available Options

• Separate models available for right-hand and left-hand opening styles
• Available in choice of threaded and through-hole mounting styles
• Electronically actuated rotary latch models also available
• Two-stage cam version prevents false latching condition
• Single and two-stage cam versions with integrated bumper option to eliminate noise and vibration
• Dual point option allows the rotary latch to be actuated from different points
• Compact and micro styles minimize protrusion within the enclosure
• Integrated cable mounting bracket option eliminates the need for secondary
• installation components
• Paddle actuator option combines rotary latch and actuator into one solution for simplified rotary system installation

Standards and Specifications

• Heavy-duty style latch meets Federal Motor Vehicle Safety Standard 206 for crash test performance when installed with optional supplemental bracket
• Stainless steel styles (304 SS) meet marine salt spray requirement
• Maximum dynamic working load for R4-10 Series is 100 N (22 lb)
• Maximum dynamic working load for R4-20 Series is 200 N (45 lb)
• Maximum dynamic working load for R4-30 and R4-50 Series is 222 N (50 lb)

Industry Applications

• Bus, Coach & RV
• Enclosures
• Industrial Machinery
• Med & Heavy Truck
• Off-Highway – Construction, Farm Vehicles