Cema Belt Conveyor Roller with Long Life Span for Coal Mining

Cema Belt Conveyor Roller with Long Life Span for Coal MiningThe SPD range of conveyor rollers includes both steel and HDPE carry and return rollers. Also available are rubber disc impact and return rollers. The rollers and frames are manufactured to different standards or design according to your special working condition requirements with some innovative and maintenance saving designs. Our rollers are fitted with quality deep ball ZZ C3 bearings for maximum life. Belt Widths of our SPD rollers range from 400-2000. Larger sizes available on request.Roller lifespan could be assured 30,000 to 50,000 hours under normal working condition and maintenance. Basic information1• Brand: SPD2Life Time: 30000-50000hours3Production Capacity: as usual 800pieces/day.4Roller Diameter: 76-219mm.5Roller Length: 190mm to 3500mm.6Roller Pipe: Q235 carbon steel,high-precision ERW seam pipe with state-of roundness and straightness to ensure well-balanced rotation.7Shaft: Accurate shaft are made of cold-drawn bright round steel, which is superior in corrosion resistance and stiffness.We have strict control over tolerance of shaft dimension and surface quality.The service lifespan can be well secured and proloned.8Bearing: Ball bearing provided with C3 group of clearance, ZZ shield deep-groove to ensure a nice fit and off-set any expected temperature rise during operation by means of internal clearance OR according to your requirements. 9Bearing Brand: S KF,F AG,NSK, LYC,HRB, or according to your requirements.10Seals: The babyrinth seal structure is of non-contact type, and durable and has less rotation-resistance and long life-span as to be of optimum structure, particularly for a long-distance and large capacity conveyor for bulk material. It is approved from the testing of national authoritative organization that Seal employed is of dustproof and waterproof type, whose performance proved to be satisfactory and has by a long way exceeded the GB and JIS standard after our repeated research and development.Factory high quality greased full for life.11Color: black, red, blue, yellow available , or according to your requirement.Technical ParametersStandard DiameterLength scope ( mm)Bearings Type(Min~Max)Idler's Shell Wall ThicknessmmInch63.52 1/2150~35002043.0mm~3.75mm763150~3500204 2053.0mm~4.0mm893 1/3150~3500204 2053.0mm~4.0mm1024150~3500204 205 3053.5mm~4.0mm1084 1/4150~3500204 205 305 3063.5mm~4.0mm1144 1/2150~3500205 206 305 3063.5mm~4.5mm1275150~3500204 205 305 3063.5mm~4.5mm1335 1/4150~3500205 206 207 305 3063.5mm~4.5mm1405 1/2150~3500205 206 207 305 3063.5mm~4.5mm1526150~3500205 206 207 305 306 307 3084.0mm~4.5mm1596 1/4150~3500205 206 207 305 306 307 3084.0mm~4.5mm1656 1/2150~3500207 305 306 307 3084.5mm~6.0mm177.87150~3500207 306 307 308 3094.5mm~6.0mm190.77 1/2150~3500207 306 307 308 3094.5mm~6.0mm1947 5/8150~3500207 307 308 309 3104.5mm~6.0mm2198 5/8150~3500308 309 3104.5mm~6.0mmMain features:1, The bearing housing and steel tube are assembled and welded with a concentric automatic, welding machine.2, Cutting of the steel tube and bearing is performed with the use of a digital auto device/machine/equipment.3, Fabrication of the roller is affected by an auto device and 100% tested for its concentricity.4, Roller and supporting components/materials are manufactured to ISO/BS/JIS/DIN//CEMA/Australia, etc. standard. Adavantage:1, Over 30 years since 1986 for design, engineer, install, innovate and maintain belt conveyor equipment, components and services.2, Germany BEUMER GROUP  advanced technology cooperation.  3, Certified by SGS, BV, and ISO9001:2008 quality management system4, Passed issued by national administration of work safety mine safety standard center.5, High-quality raw material selection made rollers working lifetime 50000 hours on average.6, Long Life-Span & Energy Saving: resistance of roller rotating is 30% lower than that of national standards, which can save 40% power consumption per hour. Cheap Inferior roller means:Inflexible movement and more power to run $$$ Quicken the wear and tear of belts $$$More placement(Be one year or just two weeks to go)$$$More downtime for maintenance$$$Inferior roller brings harms, endless...Inferior roller means low buying price, high running cost.Industry products research and manufacture. Over 70 designers are responsible for the research and development of professional port handling systems, vessels, steel structures, and modular house businesses. Port handling system mainly involves belt and pipe conveyor systems, stackers, rollers, pulleys and other parts. Shipping products include types of tugboats, product oil tankers, oil spill disposal ships and other offshore oilfield service ships; marine leveling barges, dredgers, and other engineering vessels. We have also designed and rebuilt the first offshore mariculture platform in China, several recreational platforms and other marine fishery equipment.New building materials processing business. The main products includ