Alpha Concrete Floor Grinder with Drive Plate & Diamond Disk View larger

Alpha Concrete Floor Grinder

Highly portable single-head grinder, equipped with 2 HP electric motor and a 230 mm diamond carrier/drive plate. Suitable for use in confined spaces. Single-phase electrics, 110 V or 240 V. Used for general surface preparation and maintenance tasks.

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£ 1,099.00 (excl. VAT)£ 1,318.80 (inc. VAT)

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What's included:

  • 1x Alpha Diamond Grinder


About Alpha

The Alpha is our smallest walk-behind diamond grinder, providing assured operation, operable in small areas inaccessible to larger machines and convenient to transport and store due to its compact size. Yet this machine accepts all of our standard bolt-on diamond consumables and polishing materials, subject to their suitability for the surface being prepared. The combination of an offset grinding disk (and drive motor) and a secondary (removable) dust control shroud permits this grinder to be used for edging work - in this configuration, the diamond disk will grind to within a few millimeters of a wall or obstruction. The 50 mm dust extraction port ensures substantially dust-free operation can be achieved when coupled to an appropriate performance dust extractor.



Feature Information
Weight 42 kg
Height 51 cm (top of motor)
Width 30 cm
Depth 60 cm
Power 1.5 kw/110 volt; 1.8kw/240 volt
Disk Format single disk, 225 mm diameter, 4 bolt-on segment blocks
Dust Control 50 mm dust port; suitable dust extractor - SV50 or SV120, application dependant
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!