{"id":3408,"date":"2025-10-29T14:07:23","date_gmt":"2025-10-29T13:07:23","guid":{"rendered":"https:\/\/factorylab.fr\/prehdigit-demonstration-of-multi-finger-robotic-gripping\/"},"modified":"2026-01-29T16:52:15","modified_gmt":"2026-01-29T15:52:15","slug":"prehdigit-demonstration-of-multi-finger-robotic-gripping","status":"publish","type":"post","link":"https:\/\/factorylab.fr\/en\/prehdigit-demonstration-of-multi-finger-robotic-gripping\/","title":{"rendered":"PREHDIGIT: Demonstration of multi-finger robotic gripping"},"content":{"rendered":"\n<p>Projet r\u00e9alis\u00e9 dans le cadre du Consortium industriel <a href=\"https:\/\/factorylab.fr\/\">FactoryLab<\/a> avec le <a href=\"https:\/\/list.cea.fr\/fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">CEA-List<\/a>, le <a href=\"https:\/\/www.cetim.fr\/\">CETIM<\/a>, <a href=\"https:\/\/www.finrip.fr\/\">FINRIP<\/a>, <a href=\"https:\/\/www.stellantis.com\/fr\">STELLANTIS<\/a>, <a href=\"https:\/\/www.safran-group.com\/fr\">SAFRAN<\/a>, <a href=\"https:\/\/www.naval-group.com\/fr\">NAVAL GROUP<\/a> et <a href=\"https:\/\/www.slb.com\/\">SLB<\/a>.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"120\" src=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/Logos-PREHDIGIT-1024x120.png\" alt=\"\" class=\"wp-image-3328\" srcset=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/Logos-PREHDIGIT-1024x120.png 1024w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/Logos-PREHDIGIT-300x35.png 300w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/Logos-PREHDIGIT-768x90.png 768w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/Logos-PREHDIGIT.png 1192w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-5f9a49202259489fc4c3c6edc8e36bb2\" style=\"color:#2055a2\"><br\/><br\/><strong><strong><strong><strong><strong><strong>Background<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n<p>Industry does not currently have modular grippers with a variable load capacity. Until now, automation was essentially devoted to manufacturing in large runs, mainly for repetitive tasks. Parts were handled using specific grippers, which were designed for a single task.  <\/p>\n\n<p>Today, an operational transformation is under way in factories: production must be capable of adapting to a wide diversity of parts (in terms of shapes, geometry and weight), at the same time allowing quick reconfiguration, particularly for specialised production in small and medium series. That change is accompanied by heightened requirements in terms of speed, competitiveness, sustainability and quality. <\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.stellantis.com\/fr\">STELLANTIS<\/a>: manipulation of reinforcements for roofs and doors, preparation of gear box kits etc.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.naval-group.com\/fr\">NAVAL GROUP<\/a>: holding of tubes of varied sizes and shapes during welding operations, etc.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.safran-group.com\/fr\">SAFRAN<\/a>: holding of engine parts in the production process, handling of engine subassemblies during testing, and assistance tools for after-market engine maintenance, gear maintenance etc.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.slb.com\/\">SLB<\/a>: handling and turning over parts in steel, mechanical engineering workshops, varied shapes, heavy loads etc.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-b618837183ca8e4c9e56d5cd70ac2a69\" style=\"color:#2055a2\"><br\/><br\/><strong><strong><strong><strong><strong><strong><strong>Challenges &amp; innovation<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n<p>The main challenge was to demonstrate the value of multi-finger robotic gripping of the objects in the use cases identified in the study. To that end, <a href=\"https:\/\/www.finrip.fr\/\">FINRIP<\/a> offered to develop a standard modular range of fingers and multi-finger grippers that can grasp a large variety of objects, from lightweight loads (&lt; 1 kg) up to several tens of kilograms. The aim is to address the specific industrial gripping needs of robots and cobots, by adapting to a large number of contexts and a variety of industrial applications.  <\/p>\n\n<p>As part of the PREHDIGIT project, the grippers will incorporate prototypes of sub-actuated robotic fingers with three phalanges, based on the early mechanical architectures developed by <a href=\"https:\/\/list.cea.fr\/fr\/\">CEA-LIST<\/a>.<\/p>\n\n<p>The aim is to validate the ability of this conceptual approach to fully address the expectations and requirements of end users in industry, particularly in terms of modularity, flexibility, ergonomics, safety, compliance with standards and ease of integration.<\/p>\n\n<p>This innovation can thus automate and\/or cobotise tasks by offering a system that can:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>effectively collaborate with operators, thanks to smart operating modes based on teaching.<\/li>\n\n\n\n<li>operate in fully automatic mode.<\/li>\n<\/ul>\n\n<p>Eventually, the impact on industrial use ought to lead to a significant increase in operational performance (enhanced productivity, more precise assemblies, reassignment of operators to tasks with greater added value), greater safety of operations, improved quality, and a reduction in strenuousness by making handling effortless for the operator.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-688f529874f05bb82442d29c92c33ad5\" style=\"color:#2055a2\"><br\/><br\/><strong><strong><strong><strong><strong><strong><strong><strong>Results<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n<p>A gripper prototype based on interchangeable palms with modular fingers from <a href=\"https:\/\/www.finrip.fr\/\">FINRIP<\/a> was designed and integrated in a demonstrator installed in the premises of <a href=\"https:\/\/list.cea.fr\/fr\/\">CEA-LIST<\/a>. Successful demonstrations have validated the relevance of the mechatronics and command and control approaches selected for the design of the modular robotic fingers, and that of the gripper overall. <\/p>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"924\" height=\"520\" src=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-1.png\" alt=\"\" class=\"wp-image-3314\" srcset=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-1.png 924w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-1-300x169.png 300w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-1-768x432.png 768w\" sizes=\"(max-width: 924px) 100vw, 924px\" \/><figcaption class=\"wp-element-caption\"><em>Figure 1. Example of interface for programming by demonstration of the multi-finger grasp by the operator (bottom left and right), use of the gripper in collaborative mode (bottom left) and autonomous mode (bottom right). <\/em>.<\/figcaption><\/figure>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"706\" height=\"259\" src=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-2.png\" alt=\"\" class=\"wp-image-3316\" srcset=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-2.png 706w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-2-300x110.png 300w\" sizes=\"(max-width: 706px) 100vw, 706px\" \/><figcaption class=\"wp-element-caption\"><em><em>Figure 2. Example of two-finger power grasps (<a href=\"https:\/\/www.safran-group.com\/fr\">SAFRAN<\/a> use case). <\/em><\/em>.<\/figcaption><\/figure>\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"634\" height=\"279\" src=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-3.png\" alt=\"\" class=\"wp-image-3319\" style=\"width:800px;height:auto\" srcset=\"https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-3.png 634w, https:\/\/factorylab.fr\/wp-content\/uploads\/2025\/10\/PREHDIGIT-Image-3-300x132.png 300w\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><figcaption class=\"wp-element-caption\"><em><em><em>Figure 3. Examples of four-finger grasps with a spherical configuration (left) and cylindrical configuration (right). <\/em><\/em><\/em><\/figcaption><\/figure>\n\n<p>Besides, <a href=\"https:\/\/www.cetim.fr\/\">CETIM<\/a> provided its expertise in the area of safety, helping to direct future developments in order to ensure the compliance of the next range of fingers from <a href=\"https:\/\/www.finrip.fr\/\">FINRIP<\/a> to safety requirements, particularly in respect of perception, actuation, structure and the command and control component.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-66b3ed4b26f2a6477231f78de62418b9\" style=\"color:#2055a2\"><br\/><br\/><strong><strong><strong><strong><strong><strong><strong><strong>Prospects<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n<p>The inclusion of safety requirements in the designing of the controls of the gripper is one of the short-term prospects of this work.<\/p>\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-321f78e624d65908c233572cd02460fa\" style=\"color:#2055a2\"><br\/><br\/><strong><strong><strong><strong><strong><strong><strong><strong>Conclusion<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n<p>The robotic gripper prototypes developed as part of the PREHDIGIT project fully addressed the requirements of the representative use cases supplied by the end user partners. This project was a crucial stage for <a href=\"https:\/\/www.finrip.fr\/\">FINRIP<\/a>, as it allowed a better understanding of market needs, while moving their product towards a higher technology readiness level. <\/p>\n\n<p class=\"has-white-color has-text-color has-background has-link-color has-small-font-size wp-elements-a9808163bfca1737c2bd619d14bc4474\" style=\"background-color:#1ca3c9\"><strong><em>Author: Mathieu GROSSARD, PREHDIGIT Project Manager, <a href=\"https:\/\/list.cea.fr\/fr\/\">CEA-List<\/a>.<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The PREHDIGIT project aims to demonstrate the contribution of multi-finger modular grippers that can adapt to different loads and shapes, to automate and allow the use of cobots in some industrial manipulation and handling tasks. By combining advanced mechatronics and teaching strategies, these systems aim to optimise productivity, heighten safety and improve quality, while making operators\u2019 work less strenuous. The project focuses on the validation of their modularity and compliance with current manufacturing requirements.  <\/p>\n","protected":false},"author":5,"featured_media":3304,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","inline_featured_image":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-3408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PREHDIGIT: Demonstration of multi-finger robotic gripping | FactoryLab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/factorylab.fr\/en\/prehdigit-demonstration-of-multi-finger-robotic-gripping\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PREHDIGIT: Demonstration of multi-finger robotic gripping | FactoryLab\" \/>\n<meta property=\"og:description\" content=\"The PREHDIGIT project aims to demonstrate the contribution of multi-finger modular grippers that can adapt to different loads and shapes, to automate and allow the use of cobots in some industrial manipulation and handling tasks. 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