The Benefits of Multi-Point Latching
What is...
Many industrial cabinets are made of low gauge sheet metal. These often flex under their own weight and can be forced outward due to pressure from the cabinet's internal environment (i.e. air pressure). While a gasket or seal will improve performance, all round consistent sealing is often not achieved because only a single point locking latch is used. To achieve optimum all round sealing, a Multi-Point Latching System is required.
For larger cabinets the use of Wixroyd rods and rod guides provide a Multi-Point Latching System locking at two, three or more points on the cabinet. Often these points are at the top, bottom and middle of the cabinet.
With each Multi-Point Latching System there will be an actuating cam latch. Inside of the cabinet are a cam and two latching rods.
When the latch is actuated to close, the cam engages with the door frame to provide the first point of locking. At the same time, one of the latching rods moves upwards, while the other down and engages with the top and bottom of the cabinet frame respectively, to provide the second and third points of locking.
Multi-Point Latching systems can be installed both inside and outside of the cabinet gasket.
Wixroyd Multi-Point Latching Systems provide flexible options for locking at several points of a cabinet; increasing security, improving environmental control within a cabinet, and greater stability of tall cabinets.
Features
Different approaches to Multi-Point Latching
1. In conjunction with a standard cam latch, lock and swing handle, use a multi-point cam (A0240) and a latching rod set (A0303, A0321, A0325) to achieve three points of locking.
2. In conjunction with a standard cam latch, lock or swing handle, use a two point locking adaptor A0243 and a latching rod set (A0303, A0321, A0325) to achieve two points of locking.
3. We have a range of swing handles and flush T-handle cam latches with integrated rod control systems. These integrated systems make attachment of latching rod sets far simpler and far more robust. Together they achieve three points of locking.
Technical Specs
Example of Rod Latch Application
Integrated rod control machanism
3 point cam and rods
Enclosure structure
Calculate the length of the rod
dm = rod stroke (distance rod moves when latch is actuated)
f = door frame height
Calculation of rod lengths from centreline of rotation:
Calculation of rod lengths from centerline of door used:
Important Note: The effective length of a connecting piece should be deducted if used. This calculation method is applicable for those rods mounted inside gaskets.
