Cylinder Liners are made of gray cast-iron, ought to have desired casting and machining qualities, viz. strength, toughness, hardness and wear resistance.
These are mainly of two types – Dry liner and Wet liner.
The liners are ‘cast-in fit’, force (press) fit or slip fit.
The interference between its outer diameter and bore-hole walls depends on fit-type from 0.050 to 0.075 mm. These are available in wide range suitable for light, medium and heavy duty application.
In order to meet with industrial quality standards, we manufacture these liners from sand casting and centrifugal casting, which enables us to maintain the uniform hardness all over. Apart from this, we also keep into consideration various factors including distortion-less bore and low thermal expansion to meet with the requirements of our clients. These liners are available in semi finished as well as full finished sizes. Cross honing is done on the full finished products to make the inner bore distortion-less. The inner bores are cross honed to provide maximum smoothness to the surface, that in turn reduces friction, when this inner bore is contacted with Piston Rings.
WET CYLINDER LINERS manufactured by the "CENTRIFUGAL CAST PROCESS" is acknowledged to be the best method. It possesses the bearing metal qualities that cause skin healing after abrasion and a structure that is readily wetted by oil and retains an oil film. Corrosion resistance is further improved by adding Chromium in the metal.
We also accept the customized orders of our clients and manufacture these products in accordance with the samples and drawings with the given material & coating.
In the centrifugal casting process, the molten metal is poured into a metal mould or die which is revolving at a high speed. The centrifugal force causes the metal to distribute itself evenly around the die. The resulting casting are of much finer grain and free from blow holes or porosity. A further important advantage is that the impurities, being lighter than the iron, are forced centrifugally to the bore surface from which they are removed by machining.
Semi-finished & Fully-finished
Material specification standards
|Europe||GG20, GG25, GG30|
|Graphite type:||"A" & "B" ("D" & "E" Random)|
|Flake Size:||4-6 Microns|
|Free Ferrite:||Less Than 5%|
Note: Also we can add cast material compositions using Chromium, Molybdenum, Nickel, Cooper as per customer specifications meeting to international standards.
|Hardness (BHN)||210 to 280|
|Tensile (BHN)||210 to 280 n/mm2|
Cast Iron ASTM Grade 40, GR40
Sand Casting, Centrifugal Casting
Honned, Polished, Grinning, Chromed, Nitrated
Anti Corrosive, Fine Finished, High Quality
Pistons for Cars, Trucks, Tractors, Marine Engine, Earth Movers, Compressors
50 mm to 700 MM Dia
|Dimension||Range (in mm)|
|Bore Diameter||55 to 200|
|Outer Diameter||60 to 230|
|Total Length||110 to 300|
Our staff will call or email back later and answer your questions.