While electric grippers are getting more powerful every year, in general they tend to provide less gripping force than pneumatic grippers and they also tend to be more expensive. However, what electric grippers lack in force they more than make up for by providing users with fine control over the gripper's speed, force and position. UR Certified electric grippers allow you to easily and precisely define the position of the gripper's fingers.
Many electric grippers also provide 'detect grip' functionality, which tells whether a part has been successfully picked. Additionally, electric grippers allow you to precisely control the gripper's grip force and closing speed –functionality that is particularly important when handling fragile or delicate items. While most types of gripper typically operate on full stroke, you can partially open servo-electric grippers, which allows them to easily pick a wide range of parts of different sizes.
If you are selecting a gripper for a precision assembly tasks, an electric gripper will likely be a good fit. Similarly, part sorting processes require gripper adaptability to ensure parts can be sorted, especially those ranging in size or that are positioned differently from each other –while advanced pneumatic grippers can provide elements of this functionality, electric grippers are more flexible and are easier to adjust to changing object types.
Most factories will have access to an air supply, which simplifies the deployment of pneumatic grippers. However, since electric grippers don't require an air supply, deployment is even easier and in terms of operating costs, cheaper. If your application requires a clean environment, electric grippers may be the safer choice as they eliminate the potential for air leaks.
Choosing the right gripper for your application(s) depends on many factors, from the size, shape and weight of the item or items to be gripped to environmental conditions and your budget. Talk to one of our experts today to find out more!