Certificate ISO Veritas

Layout and Marking Table

  • Layout and Marking Table
  • Layout and Marking Table

Layout and Marking Table - Overview

JASH C.I. Layout and Marking Tables serve as a reference base for inspection, tool making, gauging, spotting marking and layout operations, supported on suitable stands. Stands enable proper leveling of plate and help provide the top surface at a convenient working height of approx. 750 to 800 mm from the floor.

JASH have manufactured and supplied large number of big size Surface Plates / Tables in India as well as for Exports. More than 1000 numbers Cast Iron Surface Plates of 3000 x 2000 mm unit size and 500 numbers 4000 x 2000 mm unit size made from single casting are being used by various industries in India and abroad. Some of the large size JASH Cast Iron Surface Plates made from single casting, under use with various clients in India, are as under:-

  • 6000 x 2000 mm Maruti Suzuki India Ltd. Gurgaon.
  • 6000 x 1000 mm Heavy Vehicles Factory, Chennai
  • 5000 x 2000 mm Diesel Components Works, Patiala
  • 5000 x 2000 mm Volvo India P. Ltd. Banglore
  • 4000 x 3150 mm Cochin Shipyard Ltd., Cochin
  • 4000 x 3000 mm PMT Machine Tools, Baroda
  • 3500 x 2500 mm Bharat Earth Movers Ltd., Mysore
  • 3500 x 2500 mm Bharat Heavy Electricals Ltd., Trichy
  • 3500 x 2500 mm Bhabha Atomic Research Centre, Trombay
  • 3000 x 3000 mm Tata Robins Frazer Ltd., Jamshedpur
  • 7000 x 2000 mm Toyota do Brazil – Indaiatuba.

JASH also makes yet larger sizes in multi piece construction by employing more than one individual size Surface Plate assembled and mutually aligned together to obtain a larger made-up size. Some of such large made-up sizes supplied to various clients, are as under:-

  • One set of 12000 x 9000 mm made – up size supplied to M/s. Bharat Heavy Electrical Ltd., Haridwar, comprised of 18 nos. Plates of 3000 x 2000 mm unit size.
  • One set of 12000 x 12000 mm made – up size supplied to M/s. Bharat Heavy Electrical Ltd., Bhopal, comprised of 18 nos. individual Plates of 4000 x 2000 mm unit size.
  • Two sets of 10000 x 12000 mm made – up size supplied to M/s. L&T Mitsubishi Turbo Generators Ltd, Hazira, each comprised of 15 nos. Plates of 4000 x 2000 mm unit size.
  • One set of 8000 x 6000 mm made – up size supplied to M/s. L&T Mitsubishi Turbo Generators Ltd, Hazira, comprised of 6 nos. Surface Plates each of 4000 x 2000 mm unit size.
  • Two sets of 9000 x 4000 mm made – up size supplied to M/s. Bharat Earth Movers Ltd., K.G.F., Karnataka. Each set comprised of 6 nos. Surface Plates each of 3000 x 2000 mm unit size.
  • Two sets of 5000 x 4000 mm made-up size supplied to Heavy Vehicles factory, Avadi, Chennai. Each set comprised of 2 nos. Surface Plates each of 5000 x 2000 mm unit size.
  • One set of 8000 x 2000 mm made-up size comprising of 2 Nos. Surface Plates each of 4000 x 2000 mm unit size supplied to Ordnance Factory Project, Medak., Andhra Pradesh.
  • One set of 6000 x 3000 mm made-up size supplied to Diesel Components Works, Patilala, comprising of 2 Nos. Surface Plates each of 3000 x 3000 mm unit Size.
  • One set of 4000 x 4000 mm made-up size comprising of 2 Nos. Surface Plates each of 4000 x 2000 mm unit size supplied to Polar Satellite Launch Vehicle Project, Vikram Sarabhai Space Centre, Trivandrum.
  • One set of overall size 5000 x 4000 mm made-up size comprising of 2 Nos. Surface Plates each of 5000 x 2000 mm to Volvo India P. Ltd. Banglore.
  • One set of overall size 7000 x 4000 mm made-up size comprising of 2 Nos. Surface Plates each of 7000 x 2000 mm to Toyota do Brazil – Indaiatuba.

Salient Features

  • Made generally as per IS: 2285 from close grained plain cast iron conforming to Grade FG:220 of IS: 210 ( equivalent to GG20/ FT20 / 30-A). Higher grades also offered on request.
  • Castings stress relieved to relieve internal stresses.
  • Column type C. I. Floor stands or M.S. Fabricated stands with leveling screws provided to achieve a desired working height.
  • Special features like grid slots for location, tapped holes and T-slots can be provided on working surface, if required.
  • C.I. Surface tables made from one piece casting, in unit sizes tabulated below, offered in any of the three grades of Flatness accuracies viz. Grades 1, 2 and 3 as per DIN-876 or IS: 2295-1991, as required. Larger sizes are supplied as surface tables with suitable stands. Custom sizes can be made to order.
  • Sectional unit size surface tables adopted for the larger made up sizes are provided with arrangement for interconnection at their joints and column type C.I. Floor stands with leveling screws to facilitate leveling and access from the bottom of the table.
  • With a view to minimize problems of leveling and mutual alignment while installing as well during future periodical checks, it is advisable to select as large a unit size sectional plate as possible so that the number of joints and the number of floor stands are reduced to the minimum.

Standard Sizes of Layout and Marking Table

JASH C.I. LAYOUT AND MARKING TABLES (L x W)
(Single piece construction)
1500 x 1500 2500 x 2000 3000 x 3000 4000 x 3150
2000 x 1500 2500 x 2500 3500 x 2000 5000 x 1000
2000 x 2000 3000 x 1000 3500 x 2500 5000 x 2000
2500 x 1000 3000 x 1500 4000 x 1000 6000 x 1000
2500 x 1250 3000 x 2000 4000 x 2000 6000 x 2000
2500 x 1500 3000 x 2500 4000 x 3000 7000 x 2000