Itm Holemaker HMP45, Руководство оператора

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HMP45 OPERATOR’S MANUAL
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• After a hole is made the cutter should be withdrawn back and both the motor and the
electromagnet should be switched OFF.
• When work with the machine is finished the air supply should be disconnected, the
machine should be cleaned up from swarf, coolant etc and the cutter should be removed
and cleaned.
2.8 Workpiece Material
As shown on the graphs [Drawing 4] magnetic clamping force of the electromagnetic base
to the ferrous material depends on its magnetic properties. Steel with increased carbon
content and some other alloying ingredients have lower magnetic permeability, which causes
a decrease in the clamping force. Also the thickness of the work piece, on which the drill is
placed, is significant.
If material less than 10mm (3/8”) is to be drilled, a thick (10mm or more) piece of
material must be placed underneath the workpiece, directly below the machines
magnet, to ensure enough magnetic adhesion is present.
Appropriate rpm should be adjusted depending on if drilling would be carried out with a drill
bit, or annular cutter, and also the cutting tool’s diameter. The HMP45 is equipped with a
mechanical 2-step reducing gearbox. A general dependence between drilling diameter and
drilling speed is shown in graphs [Drawing 5]. Detailed guides should also be available from
the cutting tool manufacturer. The graph is just a general guide and applies to average mild
steel.
2.9 Working in difficult areas
The feed handles of the machine can be moved from one side to the other, by removing the
entire pinion shaft from the machine, and re-inserting into the opposite side of the drill.
Please keep all recommendations