The Dimatec "Super Duty" casing shoe is manufactured with a more aggressive matrix layer than the 'D-Series' type and is intended for use in thick overburden layers that may contain boulders.
Dimatec "Super Duty" casing shoes and rod shoes are supplied with a:
The matrix layer on all sizes of Dimatec "Super Duty" impregnated diamond casing shoes contains mesh-size synthetic diamond crystals that are uniformly distributed and embedded in a powdered metal bond.
Unlike the matrix layer, the backing layer does not contain diamond crystals distributed throughout its volume. The backing layer is also composed of a powdered metal bond material and has good wear resistance properties.
The exposed outside and inside gauge diameter surfaces of this layer are set with a combination of natural mined "kicker" grade diamond and tungsten-carbide wear pads. This gauge setting is considerably more dense than the setting on a comparably sized "D-Series" casing shoe.
These gauge setting materials assist in maintaining the critical gauge diameters throughout the life of the shoe.
