National Engineering Works Machuabazar, Kolkata, West Bengal

We are offering segmented rim sprocket, grooved traction wheel. ( up to 825 mm od, 100 mm face width, 20 m) that are precisely machined to reduce noise and ensure smooth operation & high efficiency in chain drive . Also special radial chamfered design of tooth profile vouches for friction free smooth release of the meshing chain. Various type of sprockets include : • split type segmental rim sprocket • conveyor chain sprocket • elevator chain sprocket • link chain wheel • sprockets with replaceable toothed rim or pocket teeth and grooved trailing wheels • drive sprockets & pinion gear • roller chain simplex , duplex , triplex & multiplex sprocket • silent chain sprocket & gear manufactured using qualitative raw materials like stainless steel, alloy steel, carbon steel, cast iron & cast steel, are reliable drive system for long running continuous drive application and capable to withstand maximum absorption of shock and effect minimum torque load. The teeth are induction or flame hardened in order to facilitate optimum performance in drive application.

We are offering scraper chains. Designed for the purpose of scrapping of bulk abrasive materials, special hard surface chains for en-masse conveyor redler chain conveyor, scraper reclaimer conveyor etc, are fabricated ensuring optimum breaking strength from highly ductile materials and available in a variety of forms like forged link chains, block forged chains, pin bushed pin bush roller chains and heavy duty calibrated & tested round link chains ( is 3948 din 22252 ) and also spares like outboard scraper bar, forged outboard shackle connectors, chain connector with wear pad (iso 1082).

We are offering s s short link chain. Our company is manufacturing a wide range of stainless steel short link chains. These chains are manufactured using high grade stainless steel (ss-304, ss-310, ss-316, ss-316l) that ensures their long serving life in particularly corrosive environment. Chains in different dimensions as per the requirement and demands of our clients can be manufactured.

We are offering roller chain sprocket. (up to 925 mm od) that are used in many power transmission drive systems as a continuous drive mechanism that can accommodate large center distance . These sprockets are precisely machined to reduce noise and ensure smooth operation & high efficiency in chain drive . We recommend sprockets with largest possible diameter in order to reduce strain and to minimize polygonal effect. Also hobbing cut sprockets with induction hardened teeth can be manufactured.

a wide range of Conveyor Roller Chains and Attachment Chains available from ¾” Pitch to 8” Pitch ( and in Metric Pitches also ) having breaking load up to 100 Tonnes and manufactured out of Carbon Steel , Stainless Steel & Forged Steel . These Pin Bushed Roller Chains are available in Outboard roller, Flange roller, Double roller, Extended Pin type duly fitted with different type of integral and welded attachments ( K1 , K2 , F1 , F2 , M1 , M2 , G1 , G2 , SA1 , SA2 etc. ) at certain calculated distance as per customers’ specification. These Conveyor Chains having maximum work load capacity, maintenance free durability, greater fatigue and tensile strength, dimensional accuracy and precision, can be modified to configure different individual applications like Feeder Conveyor Chains for unitized loads for heavy and light duty application, Scraper Reclaimer Chains with flight blades to push forward the pile being reclaimed for transfer to plant process, Flight Conveyor Chains for hot sticky & different material in single and double strand version, Drag Conveyor Chains for dragging the material along the path of transmission, Free Flow Conveyor Chains for accumulating and conveying products etc. The Stainless Steel Drive Chains or Nickel & Zinc plated Conveyor Chains can be produced to withstand and resist wear in corrosive application environment

We are offering mechanical drive gears. Owing to the years of industrial experience, we have been able to serve our valued clients with a wide range of mechanical drive gears. These drives are manufactured using medium grade carbon steel that ensures their durability. Our precision machined gears are acknowledged for their robust design , sturdy construction , hassle free long service life, excellent surface finish, customization capability and can be utilized for various applications like speed reduction or increase, torque multiplication, resolution and accuracy enhancement for positioning system. We offer these drives in different grades and dimensions and can be induction volume hardened for more rugged application as per the requirement of our valued clients. our range comprises: • pinion shaft, shaft sprocket and splined shaft • helical and double helical gears (max. Od 600 mm, module 12) • internal gears (max id 325 mm, module 12) • spur gears (maximum od 825 mm, module 16) • bevel & spiral bevel gears (up to 425 mm od, module 12) • worm wheel gear (up to 10 inch cd, module 16) & worm shaft • gear racks (up to 4000 mm length, module 26) & spur pinion, helical rack.

We are offering industrial leaf chains ( block chain / load chain / lifter chain ) designed for high fatigue strength, long service life and maximum resistance to wear . Our leaf chains are available in different pitches ranging 3/8” pitch to 2” pitch in different width and lacing patterns in order to meet customers’ application. Generally used in applications requiring flexible linkage for reciprocating motion or lift, these leaf chains are well suited for lift truck and counter weight. Manufactured out of qualitative raw material ( stainless steel , alloy steel , carbon steel etc. ) for durability, technical efficiency, corrosion resistance, sturdiness and cost-effectiveness , structurally in leaf chains, interfaced plates held together by riveted pins. Designed for lifting goods ( lifting chain / lifter chain ) and used in fork lift car , these leaf chains can be supplied with specific test certificates

We are offering forged drag chain link. (102 – 216 mm pitch) for transportation of abrasive material in hot working condition. Mostly incorporated in application like heavy-duty drag chain conveyors, wet scrapers, boiler feeders & mill hoppers, ash handling conveyors, esp dust conveyors, en-masse conveyors, reclaimer & intermediate carriers etc, the chain links are manufactured from age resistant fine grained heat treatable alloy steel and stainless steel, heat treated to surface hardness more than 550 hv having breaking strength up to 600 n sq mm. Salient note-worthy features of our chain links are : • closed die drop forged to attain compact grain construction • inner portion of fork precisely machined ensuring minimized friction and wear • inside load bearing pivots inductively hardened • case hardened up to rc 55, case depth from 0.7 mm to 1.0 mm for abrasive application • through hardened for higher u.t.s during high tensile application to bear impact load • duly normalized and stress relieved to preserve grain structure to impart optimum breaking strength within a complete linear arrangement or loop, flights and scraper blades are usually incorporated at every single or predetermined pitch. These chains can be supplied preassembled with case hardened joint pins and can be smeared with protective coating. Forged block type chain links can also be developed to meet customers’ specification and requirements.

Manufacturing a wide range of Stainless Steel Short Link Chains. These chains are manufactured using high grade stainless steel (SS-304, SS-310, SS-316, SS-316L) that ensures their long serving life in particularly corrosive environment. Chains in different dimensions as per the requirement and demands of our clients can be manufactured.

We are offering drag conveyor chains. - roller pin bush drag chains, pin bushed chains, welded steel drag chains, engineered steel plate chains, forged block forked type link drag chains, high tensile round steel link chains and connector shackles, suitable to perform in applications that include en-masse conveyors, esp dust reclaimer, scrapper conveyor, boiler feeders and mill hoppers, heavy-duty drag chain conveyors, ash handling conveyors, designed to drag slightly loose, lumpy or sluggish hot material from feeding end to the discharge end in closed or open trough, even ensuring movement of materials over long centre distances and steep inclined positions.

We are offering drag chain sprocket. Drag chain sprockets with replaceable toothed rim or pocket teeth and grooved trailing wheels ( in single unit or in split segmented design ) can be manufactured as per drg or engineered as per requirement. Flank of the teeth are inductively heat treated for wear resistance and excellent service life. Also special radial chamfered design of tooth profile vouches for friction free smooth release of the meshing chain.

We are providing conveyor chain sprocket. National engineering works develops drive conveyor sprockets ( max od 925 mm ), whose teeth mesh perfectly with the chain not allowing any slippage, are acknowledged for their sturdy construction, low maintenance, abrasion resistance and durability. Flank of the teeth are inductively heat treated for wear resistance and excellent service life. Also special radial chamfered design of tooth profile vouches for friction free smooth release of the meshing chain. Various type of sprockets include : • split type segmental rim sprocket for bushed chain & bucket elevator chain. • scrapper conveyor chain sprocket • bucket elevator chain head & tail sprocket • link chain grooved wheel • sprockets with replaceable toothed rim or pocket teeth and grooved trailing wheels • redler forged link chain sprocket • drive sprockets & pinion gear • roller chain simplex , duplex , triplex & multiplex sprocket • inverted tooth chain sprocket & gear drive sprockets manufactured using qualitative raw materials like mild steel , stainless steel , alloy steel , hardened & tempered steel , cast iron & cast steel , are reliable drive system for long running continuous drive application and capable to withstand maximum absorption of shock and effect minimum torque load . The teeth are induction or flame hardened in order to facilitate.

We are offering chain shackle type connector. Shackle type connector with wear pads for chain conveyors are single piece drop forged from choicest of materials ensuring linear arrangement of chain links.

We are offering alloy steel round link chain. National engineering works manufactures a wide assortment of alloy steel round link lifting chains ( up to 32 mm dia ) that have received wide application for hoisting & lifting equipments due to its high tensile strength, durability, dimensional accuracy and precision. Our complete range of alloy steel chains include : • grade 80 alloy steel chains . • grade 60 alloy steel chains . • grade 40 grade 30 short link chain • high tensile alloy steel link chain for bucket elevator, scrapper conveyor & chain conveyors. • stainless steel lifting chains ( ss-304, ss-304l, ss-316, ss-316l ) . • endless hoisting lifting link chains, butt welded chain. • multiple leg chain sling, oblong link assembly • dee shackles & u bolts, chain bow link & bucket u link for elevator, shackle connector for scraper. manufactured to stringent quality procedures from premium grade alloy steel material, these chains and accessories are duly case hardened or fully hardened and smeared with protective coating for anticorrosion resistance.