Csv Workholding

New Rohtak Road, Delhi

We manufacture, export and supply pristineCast Iron Lapping Plates. Fabricated using closed grain graded casting as per IS 210:1993 confirming to Grade FG- 220, these Cast Iron Lapping Plates ensure precision lapping of components of various sizes. These components are lapped using lapping powder of different grits to achieve finish and accuracy. Available in different specifications, our complete assortment of Cast Iron Lapping Plates complies with set industry standards and are quality approved by the authorities. These lapping plates are supplied with calibration certificate traceable to National Physical Laboratory (NPL, Govt of India) New Delhi

Attributes:

• Ideal for accurate hand lapping of various materials like nylon, plastics, ceramics and other non-ferrous material
• Available in round and rectangular sizes and have 3 mm wide and 3 mm deep serrations on working surface equally spaced at 25 mm
• Standard Size and accuracy of Cast Iron Lapping Plates as per IS : 2285:2003, Grade 1

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. Grade-II plates are accurately machined to get the requisite flatness.

Standard Accessories :

• Plates of sizes 1000 X 1000 mm and smaller, are provided with handles. A wooden cover is provided to protect the working face.

Optional Accessories :

• Fabricated mild steel stands, with three leveling screws, are offered for plates upto and including size 1600 X1000 mm.

• Cast Iron Column Floor Stands, each with a leveling screw and nut, are offered as per the scheme :
  
  • A set of five, three for leveling and two for support for 2000 X 1000 mm plate.
  • A set of seven, five for leveling and two for support for 3000 X 1000 mm plate.