The FW&G 200 SPEED machine is equipped with two independent stations that operate simultaneously.
In particular the bottom one is able to manufacture flat wire winding and the upper one is able to
manufacture automatic string grinding through a sand paper belt.
1) FLAT WIRE WINDING STATION: it performs the winding of all kinds of flat wire.
The core wire tension is regulated pneumatically by a digital manometer and the pressure can be converted from BAR to KG. The wrap wire is tensioned with a magnetic tensiometer that can be adjusted through a range scale. In order to perform different wire sizes the carriage is provided with a scale that allows to regulate the head angular position. The pitch parameter can be set in thousands of millimeters to obtain the desired stiffness of the string. The control panel allows the operator to save up to 500 working programs.
2) STRING GRINDING STATION
Thanks to a special device assembled on the machine it is possible to polish the string on the top station in order to give the desired smoothness. The machine is able to polish all kinds of strings just replacing the sand paper belt according to different superficial grains. The belt is made of a special material displaying a pyramid structure that guarantees the consistent consumption during usage ensuring always the same quality of the finish. The operator can choose two different options for the grinding operation (forwards or backwards/forwards run) and the number of runs. It is possible to regulate three speeds: rotation speed of the string, translation speed of the carriage and rotation speed of the belt (from 4000 to 10000 rpm). The machine is equipped with a vacuum system which has three main advantages:
a- dust suction on the string;
b- string cooling function;
c- keeps mechanical parts cleaned.