--- title: "Grinding Wheel Test Results: Sigma Green & Sigma Green Max" description: Recently a study was conducted to determine the stock removal rate and life of both Sigma Green and Sigma Green Max. image: https://www.rexcut.com/hubfs/sigma_max_test_results_2016-1024x847.jpg --- [![Rex-Cut Abrasives Company Logo](https://www.rexcut.com/hubfs/Rex-Cut%20Logo%202026.svg "Rex-Cut Abrasives Company Logo")](https://www.rexcut.com/) [![burger-menu-phone.svg](https://www.rexcut.com/hubfs/assets-apr-2018/global/burger-menu-phone.svg "burger-menu-phone.svg")](https://www.rexcut.com/blog/grinding-wheel-test-results-sigma-green-and-sigma-green-max-comparison#sidr-main) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. ## Rex-Cut Blog - [Fabrication (42)](https://www.rexcut.com/blog/topic/fabrication) - [Stainless Steel (31)](https://www.rexcut.com/blog/topic/stainless-steel) - [Videos (27)](https://www.rexcut.com/blog/topic/videos) - [Aluminum (19)](https://www.rexcut.com/blog/topic/aluminum) - [Automotive (13)](https://www.rexcut.com/blog/topic/automotive) - [Aircraft (10)](https://www.rexcut.com/blog/topic/aircraft) - [Energy (8)](https://www.rexcut.com/blog/topic/energy) - [Abrasive (6)](https://www.rexcut.com/blog/topic/abrasive) - [Safety (5)](https://www.rexcut.com/blog/topic/safety) - [Grinding Wheels (2)](https://www.rexcut.com/blog/topic/grinding-wheels) All Categories Fabrication Stainless Steel Videos Aluminum Automotive Aircraft Energy Abrasive Safety Grinding Wheels Quick-Change Type 27 Grinding Wheel This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. # Grinding Wheel Test Results: Sigma Green & Sigma Green Max April 20, 2016 Recently a study was conducted to determine the stock removal rate and life of both [Sigma Green](https://www.rexcut.com/product/sigma-green) and [Sigma Green Max](https://www.rexcut.com/product/sigma-green-max). Both grinding wheels are manufactured with the same specialty grain and bond combination and are designed for fast grinding with low vibration. The difference is the thickness. Sigma Green Max is a thicker version of the original Sigma Green. This newer ¼”/6mm thick wheel was engineered for longer life. This test was conducted by weighing the wheels and workpiece before grinding, then after 5 minute test intervals. These 5 minute grinding tests continued until the end of each wheel. The findings show Sigma Green Max with 40% longer life, 10% higher grinding ratio, and 10% faster grinding ability over Sigma Green. ![sigma green grinding wheel](https://www.rexcut.com/hs-fs/hubfs/distributor_images/sigma_green_4.5.jpg?width=350&name=sigma_green_4.5.jpg)![sigma max grinding wheel](https://www.rexcut.com/hs-fs/hubfs/distributor_images/sigma_max_4.5.jpg?width=350&name=sigma_max_4.5.jpg) Below are the test parameters and results. **Sigma Green and Sigma Green Max Grinding Wheel Test ***3/29/16* 1. **Wheels:** Sigma Green Sigma Green Max 2. **Grinder:** Bosch GWS-7-115 (230V  80 m/s) 3. **Workpiece:** 304 Stainless 9mm flat bar 4. **Grinding Method** 1. Weigh the wheel and workpiece before commencing grinding 2. Weigh the wheel and workpiece again 5 minutes into grinding 3. Check the difference of wheel loss and stock removal in weight; between, before, and after grinding **TEST RESULT** | Product | Weight (g) | Thickness (mm) | Wheel Loss (g) | Stock Removal (g) | Time (min) | Grinding Ratio | Grinding Speed (g/min) | | --- | --- | --- | --- | --- | --- | --- | --- | | Sigma Green | 98 | 4.6 | 49 | 444 | 50 | 9.1 | 8.9 | | Sigma Green Max | 137 | 5.8 | 68.6 | 684 | 70 | 10 | 9.8 | ![sigma_max_test_results_2016-1024x847](https://www.rexcut.com/hs-fs/hubfs/sigma_max_test_results_2016-1024x847.jpg?width=1024&name=sigma_max_test_results_2016-1024x847.jpg) **Comparison results of Sigma Green Max with Sigma Green** 40% higher durability/ Longer Life 10% higher grinding ratio 10% faster grinding speed ## Join our Email list Every few weeks we send informative emails regarding application information, Rex-Cut products, promotions, or company news. Join our email list to stay connected with us! ![Rex-Cut Logo 2026 Footer](https://www.rexcut.com/hubfs/Rex-Cut%20Logo%202026%20Footer.svg) © 2026. Rex-Cut Abrasives. All Rights Reserved. [Privacy Policy](https://www.rexcut.com/privacy-policy) 960 Airport Road Fall River, MA 02720 USA Phone: (800) 225-8182 Fax: (800) 638-8501 [CONTACT](https://www.rexcut.com/contact)   [![social-icon-youtube.svg](https://www.rexcut.com/hubfs/assets-apr-2018/global/social-icon-youtube.svg "social-icon-youtube.svg")](https://www.youtube.com/user/rexcutabrasives/videos) [![social-icon-linkedin.svg](https://www.rexcut.com/hubfs/assets-apr-2018/global/social-icon-linkedin.svg "social-icon-linkedin.svg")](https://www.linkedin.com/company/rexcut) [![social-icon-facebook](https://www.rexcut.com/hubfs/assets-apr-2018/global/social-icon-facebook.svg "social-icon-facebook")](https://www.facebook.com/RexCut) [![social-icon-instagram](https://www.rexcut.com/hubfs/social-icon-instagram.svg "social-icon-instagram")](https://www.instagram.com/rexcut_abrasives/) ![social-icon-blank](https://www.rexcut.com/hubfs/social-icon-blank.svg "social-icon-blank") ```json { "@context" : "https://schema.org/", "@type" : "WebSite", "name" : "Rex-Cut Abrasives", "potentialAction" : { "@type" : "SearchAction", "query-input" : "required name=search_term_string", "target" : "https://www.rexcut.com/hs-search-results?term={search_term_string}" }, "url" : "https://www.rexcut.com/" } ```