Figure 1: CEMA standard belt edge distance recommendations. © 2023 Martin Engineering
Figure 2: Comparison of capacity increase by changing idler trough angle. ©2023 Martin Engineering.
Changing from a 35 to 45-degree trough angle and the wider belt and idlers would result in a 90% increase in cross-sectional area. This method is not often used, because there is resistance to increasing capital cost for a wider and higher load-bearing structure, higher material mass and larger drive. However, it is an excellent approach if there is an expecta- tion of increasing capacity in the future. l
Martin Engineering has been a global innovator in the bulk material handling industry for more than 75 years, developing new solu- tions to common problems and participating in industry organi- sations to improve safety and productivity. The company’s series of Foundations books is an internationally-recognised resource for safety, maintenance and operations training. Martin Engineering prod- ucts, sales, service and training are available from 16 factory-owned facilities worldwide, with wholly-owned business units in Australia, Brazil, China, Colombia, France, Germany, India, Indonesia, Italy, Mexico, Peru, Spain, South Africa, Turkey, the USA and UK.
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