TID - Category 2 - Materials Processing

2B201 Machine tools, other than those controlled by 2B001, as follows, and any combination of those machine tools for removing or cutting metals, ceramics or "composites", which, according to the manufacturer's technical specification, can be equipped with electronic devices for simultaneous "contouring control" in two or more axes: (L.N. 254 of 2008)

(a) Machine tools for milling, having any of the following characteristics:

(1) Positioning accuracies with "all compensations available" equal to or less (better) than 6 £gm according to ISO 230/2 (1988) or national equivalents along any linear axis; (L.N. 65 of 2004)

(2) Two or more contouring rotary axes;

(3) Five or more axes, which can be coordinated simultaneously for "contouring control"; (L.N. 254 of 2008)

Note:

2B201(a) does not control milling machines having the following characteristics:

(a) X-axis travel greater than 2m; and

(b) Overall positioning accuracy on the x-axis more (worse) than 30 £gm. (L.N. 65 of 2004; L.N. 95 of 2006)

(b) Machine tools for grinding, having any of the following characteristics:

(1) Positioning accuracies with "all compensations available" equal to or less (better) than 4 £gm according to ISO 230/2 (1988) or national equivalents along any linear axis; (L.N. 65 of 2004)

(2) Two or more contouring rotary axes; (L.N. 65 of 2004)

(3) Five or more axes, which can be coordinated simultaneously for "contouring control"; (L.N. 254 of 2008)

Note:

2B201(b) does not include grinding machines as follows:

1. Cylindrical external, internal, and external-internal grinding machines having all of the following characteristics:

(a) Limited to a maximum workpiece capacity of 150 mm outside diameter or length;

(b) Axes limited to x, z and c; and

2. Jig grinders that do not have a z-axis or a w-axis with an overall positioning accuracy less (better) than 4 microns. Positioning accuracy is according to ISO 230/2 (1988). (L.N. 254 of 2008)

Notes:

1. 2B201 does not include special purpose machine tools limited to the manufacture of gears. For such machine tools, see 2B003.

2. 2B201 does not include special purpose machine tools limited to the manufacture of any of the following parts:

(a) Crank shafts or cam shafts;

(b) Tools or cutters;

(d) Engraved or facetted jewellery parts.

3. A machine tool having at least two of the three turning, milling or grinding capabilities (e.g., a turning machine with milling capability), must be evaluated against each applicable entry of 2B001(a) or 2B201(a) or (b). (L.N. 254 of 2008)

(L.N. 254 of 2008)