PARAS DIAMOND CO.

Majura Gate, Surat, Gujarat

Diamond Indenter is an instrument that measures hardness by indenting a material with a diamond point. Diamonds are mounted on Rockwell Indenter in exact conformity to its grain structure preventing premature breakage caused by unbalanced diamond pressure. Our exclusive gem polish insures eliminates sidewall friction and error due to metal gathering up around the indentation insuring reliability and longer life to the Rockwell diamond indenter We manufacture Diamond Indenters for Rockwell / Superficial / Portable / dynamic hardness testing Machines.

Diamond / CBN Internal Grinding Wheels can be had in Resin, Metal or Electroplated Bonds. Diamond Internal Grinding Wheels are suited for non ferrous materials machining such as: Tungsten Carbide, Ceramics, Sapphire, Glass, Stones, Fibre Reinforced Plastics etc. CBN Internal Grinding Wheels are usually used for hard ferrous materials over 45 HRC such as High Carbon, High Chrome Steels etc. Resin / Metal Bond Internal Grinding Wheels can be had from minimum 4.0 mm diameter to 40.0mm against specific orders. Electroplated Diamond / CBN Internal Grinding Wheels are available from 1.0mm to 30.0mm diameter in ready stock. Orders for special dimensions can also be executed in shortest time. Recommended Use : Low wheel speed is one of the major causes of poor performance in super abrasive products like Diamond or CBN. Wheel loading and heat build-up are common signs of low RPM. The recommended speed for Electroplated Diamond Internal Grinding Wheel is 2100 to 3600 m/min and for Electroplated CBN Wheel is 3600 to 6000 m/min. The suggested feed vary from 0.005mm to 0.05mm depending on the material ground. Coolant should be used wherever possible, but can be used dry successfully. Diamond Files are offered in the form of Needle Files and in the normal sizes. Machine files also can be supplied against customer's specifications It is available in various shapes like Flat Round Triangle Square Half Round Taper Flat Knife Edge Barrette Slitting The standard size of the needle file is 160mm Overall Length 80mm Coated Length

PARAS DIAMOND CO. INDUSTRIAL DIAMOND TOOLS DIVISION manufactures very wide range of Electroplated products which includes Needle Files, Saw Blades, Mounted Point, Drill Bits and Flexible Diamond Products.

We also manufacture Peripheral wheels, Precision Reamers, Precision Profile Wheels, Radius, Flat, V Form, Special Forms, Straight and Taper Cup Wheels and Sharpening Wheels etc., For more Please see section Diamond & CBN Tools - Wheels for High Precision Grinding Solutions

"PARAS DIAMOND CO." make Single point "bruted diamond" dressers are made with selected "Congo Rounds" mounted in a matrix.
A Single cutting edge is presented to the grinding wheel.

Diamonds for single point dressers are selected in accordance with quality and size. The question of using a superior, average or commercial quality, depends on the grinding finish required and the machines and working parameters.

We offer three grades namely NS - A, NS - B, and NS - C for all the diamond size, Availability: 0.25 Ct to 5.00 Ct


Guideline for Single - Point Diamond Dressers :

Considerable care should be taken in mounting the diamond dresser in position. Diamonds are sensitive to shock and impact.

The dresser must be clamped rigidly in place to avoid vibration once dressing begins.

An ample supply of coolant should be directed at the diamond point before dressing begins, as the sudden application of coolant to the diamond once it has heated up can cause it to shatter.

The diamond holder should not be set directly on the center of the grinding wheel, but at an angle of
5-15 to the direction of rotation of the wheel so that it appears to be "trailing"

At normal wheel peripheral speeds, dressing rates of approximately 20-25 m/sec can be achieved.

The maximum depth of cut achieved per dressing pass is 0.03 mm or on fine grit wheels,
approximately 0.005-0.01 mm.

The cross feed rate is dependent upon grit size and can have a marked influence on the quality of the finish imparted to the grinding wheel surface. The lower the feed rate, the finer the surface finish.
We would recommend the following feed rates per revolution of the grinding wheel.