For the rental of the hydraulic core drill we provide our powerful Hycon HCD 50-200, combined with our Hycon power unit or rented separately. Our core drilling machine is a machine that combines power and reliability thanks to the 600 rpm motor with a diameter of the cup drills that can be supported from 50 up to 350mm, an oil pressure during the working phase of 100bar and its low weight of only 7.6 kg can handle even the toughest jobs. The Giffi Noleggi core drilling machine is a useful tool for drilling concrete, stone walls, brick or concrete block walls, asphalt, reinforced concrete, thanks to the great power and the diamond cup supports for concrete it is able to drill a large quantity with precision of different materials with ease allowing you a great saving of time and effort.
With the core drill, it is possible to carry out drilling work on walls, agglomerates, bricks, floors and stone. To make the holes, diamond crowns are used, which are nothing more than metal cylinders with diamond particles at the end, during cutting the resulting material remains inside, creating the characteristic core shape. The result is a perfectly homogeneous and well-polished hole. There are different types of crowns that can work dry or wet depending on the material.
Generally, the choice of the type of core drill depends on the type of material to be drilled, if the material can absorb water creating consequences that could be unpleasant such as wood, plasterboard, MDF, then it is better to use dry coring, in all other cases the water one is better.
The use of a core drill allows you to carry out all the main construction activities leaving out the preparation of the holes for the passage of cables and pipes and deal with them later, in fact, the holes made with the core drill can be made later, once the structural work the holes made with the core drill, in addition to not causing any type of "stress" to the structure, will be clean and precise, thus avoiding repairs due to the use of breakers or hammers. Another important advantage is to be able to make holes without dirtying, in fact, the use of a water core drill avoids the production of volatile powders, this makes it a very useful tool for working both indoors and outdoors,
being able to work on finished works inside homes and structures. When using a core drill, whether it is wet or dry, it is important to pay attention to the start of rotation in an absolutely gradual way, in fact, if the start is too abrupt, diamond particles could detach from the drill bit, thus decreasing its duration. Even the high rotation speed can cause the same inconvenience but also a too low rotation speed risks not being able to scratch the material. Being able to find the right rotation speed in relation to the material to be drilled therefore becomes essential for perfect drilling, so we suggest you follow the following table to have a better core drilling:
1) For coring ceramic and tiles, a rotation speed of 1000 ÷ 1500 rpm (low speed) is suggested;
2) For coring plasterboard, siporex and wood, a rotation speed of 2000 ÷ 3000 rpm (high speed) is suggested;
3) For coring of clinker, bricks, clay, poroton, bricks, refractory, a rotation speed of 1000 ÷ 3000 rpm (high speed) is suggested
In water coring it is essential that the tip is always adequately wet, otherwise, there is a risk of overheating with consequent excessive consumption of the diamond tip.
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