Call Us: +91-7410524141
Call Us: +91-7410524141
Master Cylinders squares, used on surface plates, provide one of the most reliable 90° reference standards available in the industry today. Work may be placed against the periphery and sighted for checking squareness, right angle by comparison method. Master cylindrical squares are also used for checking the squareness of the vertical axis to the horizontal axis of numerically controlled machining centres. Luthra master cylindrical squares are made of high quality alloy steel, scientifically heat treated for maximum stability and wear resistance. The periphery is ground between centres straight and round within the tolerance specified for each size, with an extremely fine micro finish. The ends, recessed are ground and lapped square with the axis within the specified tolerances as per IS 6952:1990. Each square is packed in a finished wood case with hinged cover. Luthra Cylindrical squares are supplied with calibration certificate traceable to National Physical Laboratory (NPL, Govt.Of India) New Delhi.
Standard Size and accuracy of Luthra Master Cylinder as per IS 6952:1990. Grade 1:
| Length mm |
Diameter mm |
Accuracy um |
| 75 | 50 | 3 |
| 150 | 70 | 3 |
| 225 | 90 | 5 |
| 300 | 95 | 5 |
| 450 | 120 | 7 |
| 600 | 140 | 9 |
Other Sizes On Request
Triangular Square Granite is made of selected black granite. These triangular shaped granite squares are ideal for checking X, Y and Z axes of machine bases or parts. They are very rigid and stable. The two face master angle has two narrow perpendicular edges finished flat and square.
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Specifications:
| Size (mm) | Accuracy (um) |
| 300 X 200 X 63 | 5 |
| 4400 X 250 X 63 | 6 |
| 500 X 300 X 80 | 6 |
| 600 X 400 X 100 | 8 |
| 1000 X 600 X 100 | 10 |
Master Square with master block are made from selected black granite stone. Master squares are ideal for insp ecting the X, Y and Z axes of machine tools. Our Square granite master block are very stable and rigid, providing the ultimate in squareness references. Our Granite square have 5 finished faces (1 large face and 4 edges) finished flat, square and parallel to Grade–0 accuracy. All six faces can be finished upon request.
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Specifications:
| Size (mm) | Accuracy (um) |
| 300 X 300 X 50 | 5 |
| 400 X 400 X 63 | 6 |
| 630 X 630 X 80 | 8 |