Bolt-on Diamond Grinding Segments

Metal-bond diamond grinding segments for a range of surface preparation work. See guidance information below.

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£ 35.20 (excl. VAT)£ 42.24 (inc. VAT)

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All Sunrise diamond grinders use the same style of bolt-on diamond products. The quantity used on each machine will vary depending upon the diameter of the drive plate; on the larger machines, the number of segments can be varied so as to alter the pressure being applied on each segment, thereby changing the operating characteristics.

The abrasive medium in the grinding segment is industrial diamond. This comes in different grades, generally referred to as grit (sizes). The body of the segment, in which the diamond grit is encased, is a metal alloy, generally referred to as the bond. The composition of the bond (the metal alloy) dictates the rate at which it wears away, hence the rate at which the diamond grit is exposed. A hard concrete surface will require a diamond with a softer bond; the softer bond allows the grit to become exposed more quickly, with the effect that the hard surface can be ‘worked’ most efficiently. Conversely, a softer or more abrasive concrete surface will benefit from a harder bond as this will protect the diamond from being exposed too quickly.

The infomation tab alongside, titled Segment Comparison, provides detail on the composition and general use of the various segment types.  

SegmentGritBond StrengthComment
DSB 5-3 25 Soft Large grit with soft bond delivers aggressive performance and high productivity - well suited to hard floors and use on low-powered grinders.
DSB 7-4 30/40 Medium A highly versatile ‘general purpose’ diamond segment. Good for removing trowel marks and finish suitable for paint coatings. Best performance (longer life) on harder concrete.
DSB 7-5 80 Medium Productivity and wear characteristics similar to DSB 7-4 but finer grit means they are suitable for early stage floor polishing.
DSB 7-6 120 Medium Similar to DSB 7-5 but with still finer grit for next stage cutting/polishing. For polishing, it would be suggested to follow with 120 grit resin button or pad.
DSB 8-4 30/40 Hard Same grit size as DSB 7-4, but the harder bond makes them more suitable for softer or more abrasive concretes. This is a long-life segment, which means production rates will be lower in most circumstances.
DSB 9-4 30/40 Very hard Same grit size as the DSB 7-4 and DSB 8-4, but encased in our hardest bond material. Once again, this is a slow-wearing, long-life combination recommended for very abrasive and recently-laid concretes.
PCD is the recognised abbreviation for Polycrystalline Diamond. This diamond material has different characteristics to that used in the metal-bonded diamond products listed above. In particular, PCD plates are sharper and more durable.
PCD Grit High Hard Grit particles in this segments can be irregularly shaped, 5-8 mm across a face and presenting very sharp cutting edges, They are commonly used for removing thick or pliable coatings, including latex and glue residues.
PCD Plates - -

Unlike PCD Grit, where the diamond is embedded in a rectangular segment bock, PCD Plates usually comprise a single, large piece of the polycrystalline diamond adjacent to a strip of solid PCD material; both are fitted on the standard-style bolt, coatings and pliable materials.

PCD plates are directional, constructed to be used for either clockwise or anti-clockwise rotation - use them in the wrong direction and they will be probably be destroyed in seconds. This warning is most applicable when using diamond grinders powered from a three-phase supply!