IEMCA SMART 316, Руководство по эксплуатации и техническому обслуживанию

Страница: 24 / 166

EN
2 - TECHNICAL INFORMATION SMART316
2 - Pag. 16 / 20
2.6.1 Noise levels
Bar feeder does not cause acoustic noise.
Noise occurs when lathe, connected to the bar feeder, is working and the bar is rotating into
bar feeder guides.
In such a case, noise level emitted depends on the following conditions:
• perfect alignment and levelling of the lathe-bar feeder unit;
• proper fastening to the floor both of lathe and bar feeder;
• suitable bar gripping device fitted on lathe;
• dimensions of guide channel and bar-pusher suited to the bar stock;
• front guide bush of suitable diameter (if supplied);
• bar with a straightness within prescribed limits (max. arrows equal to 0.5 ‰ mm of the bar
length);
• spindle liner having the same diameter as the bar feeder guide channel diameter;
• spindle rotation speed suitable for the material to be machined;
• as to the bar feeder, use of oil having features suitable for the diameter of the bar to be
machined;
• all bar feeder panels must be closed.
Should the above mentioned conditions be met, the noise level emitted during bar rotation into
the guide channel, measured in compliance with the international standards, will be within the
following limits:
• brass and steel round bars within 80 *) dB(A);
• hexagonal steel bars within 83 dB(A);
• brass hexagonal bars within 85 dB(A);
The noise lever depends on the lathe working condition as well as on the bar type being
machined.
Whenever necessary, operators must wear PPE (personal protective equipment)provided for by
the accident prevention regulations in force in the country in which the machine is installed.
• *) Measurements taken on round bar Ø35mm, guide channel Ø36mm , bar straightness <
5%, 3750 Rpm, on a Biglia B501 lathe, serial number.