Graphite Blocks — Machined to your specification
Large Graphite Blocks
Refractories Ltd. supply a range of grades and sizes of graphites and carbons in block form. Raw material sizes start from 50mm x 50mm cross section, to blocks as large as 500mm x 500mm x 1850mm.
Synthetic graphite blocks are available as fine, medium and coarse grained graphites:
Fine grained graphite blocks:
Fine grained graphite blocks are available up to a certain size. Our range is extremely extensive. We supply blocks up to 300mm x 600mm x 1200mm with other sizes available upon request.
Medium grained graphite blocks:
Medium grained graphite blocks are available up to a size of 375mm x 915mm x 3100mm. Other sizes are available upon request.
Coarse grained graphite blocks:
This area of supply is not normally an area in which Refractories Ltd. offer. We tend not to deal with coarse grained graphites because we specialise in other areas.
Coarse Grained Graphite BlocksOlmec can machine these grades using our extensive range of lathes, saws, grinders and machining centres. We use Computer Aided Manufacturing (CAM) systems with our CNC machinery providing rapid and accurate machined graphite components. The image below gives an indication of the intricate level of machining that our software and machinery can produce.
We are pleased to offer advice on which grade will be most suitable for your application. Early contact before new designs are fully formulated is often beneficial; we can guide you through the range of parameters requiring consideration. This can help you make your design more functional.
Specialty Graphite Block and Rod
Refractories Ltd. Specialty Products offers a variety of different sizes and shapes of graphite block, rounds and rods to suit many different applications and customize components and parts for specific requirements. Our comprehensive on-site inventory and technical manufacturing expertise allows us to take on new product development from new and existing customers. We work closely with all of our customers by understanding their needs and transforming that need into the required products. Through our global partnerships, we can provide the best materials at the best price along with shorter lead times and quick turnarounds.
Graphite rounds are popular in the creation many different types of molds: hot pressed, static casting, centrifugal casting, fused refectory etc. They are also used to create different furnace parts such as resistance heating elements, induction susceptors, structural elements, charging plates, furnace liners, heat shields and covers. Rounds are also used as anodes for the electrolysis of metals, cathodes in the aluminum electrolysis cells and more. Boats and trays can be machined for sintering along with crucibles for melting and reduction. Refractories Ltd. can also machine parts for heat exchangers out of rounds.
Graphite rods or electrodes are manufactured with high quality raw material including petroleum cokes, needle cokes and coal tar pitch through the production process of calcining, crushing, burden, mixing, kneading, extruding, baking, impregnation, graphitization, manufacturing and packing. Graphite electrodes are widely used in electric arc furnaces and ladle refining furnaces for steel making and used in electric smelting furnaces for producing industrial silicon, yellow phosphorus, corundum, nonmetals and more.
Graphite block is made form the domestic petroleum coke and widely used in the metallurgy, machinery, electronics and chemical industry, etc. Block include molded, extrude, vibrated and isostatic. Our main and most preponderant graphite block is molded formed. Our products own the following characteristics: low electric resistance, good electric and thermal conductivity, high oxidation resistance, greater resistance to thermal and mechanical shock, high mechanical strength, high machining accuracy and so on.
