The Type KPXM mount employs two or more leaf springs used in opposing pairs to form an elliptical leaf spring assembly. The spaces between the leaves are filled knitted mesh cushions to provide damping. This allows the mount to be used in areas where high or low temperatures are a concern, and the standard Type KPX is not suitable. The temperature range for the KPXM is -40°C to 100°C limited by the nylon washer and insert. This range can be extended if this material is replaced.

There are eight sizes of XM mount giving a load range of between 9 and 550 kg. These sizes are divided into three sub-groups based on their dimensions, with groups one and two being 51 mm (2") wide and group three being 102 mm (4") wide: 10 and 20; 45 70 110; 180 320 450.

The KPXM mount is designed to be interchangeable with the Type KPX providing the same space efficient shock mount design.

The Type KPXM mount can be installed in any orientation allowing equipment to be mounted to the deck, bulkhead, or deck head. Combinations can also be used where equipment geometry requires it e.g. equipment mounted to the deck and to the bulkhead.

The KPXM mount uses a simple single bolt fixing method on each side of the mount which facilitates the installation of the equipment on board ship.