Our Products
We are leaders in the market for providing best range of Cast Iron Welding Plate, Cast Iron Angle Plate, Cast Iron Box Angle Plate and Cast Iron Surface Plates
Used as precision reference base for inspection, marking and layout
We can also manufacture surface plates as per customer requirement. Used as precision reference base for inspection, making and layout.
Standard size Surface Plates are made generally as per IS-2285:2003 in three grades of accuracies and have hand-scraped finish.
Surface Tables are made to Grade-1, 2 and 3 flatness accuracies of DIN-876 and have hand-scraped / ground finish.
M.S. Fabricated stand or C.I. Column type floor stands supplied at extra cost.
Grid lines, Tapped holes and T-slots can be provided at extra cost.
| echnical Specification | ||
| Size (in mm) | ||
|
2000 x 1250 |
2000 x 1750 |
3000 x 3000 |
|
2000 x 1500 |
2500 x 2000 |
3500 x 2500 |
|
2000 x 2000 |
2500 x 2500 |
4000 x 1000 |
|
2400 x 1200 |
3000 x 1000 |
4000 x 2000 |
|
2500 x 1000 |
3000 x 1250 |
5000 x 1000 |
|
2500 x 1250 |
3000 x 1500 |
5000 x 2000 |
|
2500 x 1500 |
3000 x 1600 |
6000 x 1000 |
|
2500 x 1600 |
3000 x 2000 |
6000 x 2000 |
Made Generally as per IS: 6232-1971. Made from good quality close grained with high Density Alloyed Cast Iron Castings Conforming to Grade FG-220 of IS : 210, Stress Relieved Hand Scrapped Surfaces. Precision Box Angle plates as per IS-6985-73 on request.
| Size in mm L X B X H |
Flatness In Micron |
Squareness In micron |
Parallelism of Opp . Surface |
| 125 X 75 X 100 | 5 | 10 | 13 |
| 175 X 100 X 125 | 5 | 13 | 15 |
| 250 X 150 X 175 | 8 | 15 | 18 |
| 350 X 200 X 250 | 8 | 18 | 20 |
| 450 X 300 X 350 | 10 | 18 | 20 |
| 600 X 400 X 450 | 10 | 20 | 23 |
These plates are of close grained cast iron. They are amply ribbed to minimize deflection under load. The composition of the metal, the depth and cross-section of the ribs and the thickness of the plate are designed to conform to the deflection limits specified in IS 2285 -1963.
Surface plates are manufactured to two tolerance standards. - Grade-I and Grade-II. Grade-I plates are more precise than Grade-II plates. The deviation in flatness for Grade-I and Grade -II plates for sizes upto and including 2000 x 1000 mm are as prescribed in IS 2285-1963.
Grade-1 plates are artificially seasoned.They are hand scraped to achieve maximum local deviation from flatness of 5 microns over any length of 300 mm at any points on the working face , in plates of 630 X 400 mm and larger. Aspecial scraping technique is used to achieve a uniform distribution of load bearing points and oil pockets. An average of 15-20 load bearing points , after finish scraping , is standard. This finish scraping technique ensures that the area of the load bearing points increases after the intial dulling of the high points. This guarantees a long working life, at the required accuracies.
|
Nominal Sizes In mm |
Maximum deviation from flatness over the entire are expressed in Microns as per IS 2285 -1963 |
Weight in kg (approx) |
|
|
Grade -1 |
Grade - II |
||
|
400 X 400 |
7.5 |
- |
50 |
|
630 X 400 |
7.5 |
30 |
96 |
|
630 X 630 |
7.5 |
30 |
156 |
|
1000 X 630 |
10.0 |
40 |
271 |
|
1000 X 1000 |
12.5 |
50 |
514 |
|
1600 X 1000 |
17.5 |
70 |
870 |
|
2000 X 1000 |
20.0 |
80 |
1345 |
|
3000 X 1000 |
25.0 |
100 |
1845 |
