Schmalz Simplifies Soft Robotic Gripping With mGrip Basic

Schmalz has introduced the mGrip Basic finger gripper and SRCU Basic controller to simplify the automation of delicate and irregular product handling. Designed for food, packaging, and other applications with changing product shapes, the modular system uses soft pneumatic fingers that conform to each item while minimizing damage. Combined with straightforward pressure control and quick reconfiguration, the new platform offers manufacturers a cost-effective way to add flexible soft-gripping capabilities without increasing system complexity.

Schmalz mGrip Basic uses soft pneumatic fingers to securely handle delicate and irregular products, such as potatoes, without damaging their surfaces. Image used courtesy of Schmalz

The mGrip Basic was designed for everyday applications in a variety of manufacturing or distribution facilities where conventional mechanical grippers can struggle, including food products, agricultural goods, packaged items, and other products that can vary in size, shape, and weight. When paired with the SRCU Basic controller, the system offers a lower-cost entry point to automated handling while maintaining the flexibility needed for changing product mixes.

Built for Products That Don't Fit a Standard Shape

Many automated handling systems are optimized for rigid, predictable products. That becomes more difficult when a robot is asked to pick items such as potatoes, baked goods, confectionery, dairy products, or products packaged in film, netting, or blister packs.

The mGrip Basic's soft finger modules adapt to varying product shapes, allowing the gripper to handle a variety of weights, shapes, and sizes. Image used courtesy of Schmalz

The mGrip Basic can address some of the issues that arise when using pneumatically actuated soft finger modules that conform to the product's shape rather than forcing the product to fit the gripper. The fingers are designed to grip securely while minimizing product damage, making the system suitable for fragile or easily deformed items. Schmalz also allows users to adjust finger spacing and positioning, helping accommodate varying product dimensions without requiring an entirely new gripper assembly.

Modular Design Reduces Changeover Time

One of the more practical aspects of the design is its modular construction. The finger modules can be removed, repositioned, and reconfigured by simply using the integrated mounting features. This allows the grippers to adapt as product requirements change, and, rather than replacing the entire end effector or having specialized fingers when a new product is introduced, operators can modify the existing finger configuration to match the application.

The finger modules and mounting plates can also be integrated into custom end-of-arm tooling designs, giving machine builders and integrators additional freedom when developing application-specific robotic systems.

Simple Pressure Control for Consistent Handling

The SRCU Basic control module can work alongside the gripper as a simple pneumatic control solution. Operators can manually adjust output pressure with an integrated adjustment handle, making it easy to tune grip force for different products and handling requirements. A built-in vacuum switch provides visual pressure feedback during setup and operation.

The SRCU Basic control module allows operators to manually adjust grip pressure while providing integrated pressure monitoring and protection for soft-gripping applications. Image used courtesy of Schmalz

The module will also include an internal pressure-reducing valve that automatically limits the output pressure to help prevent overloading of the soft fingers. According to Schmalz, this can improve component life while maintaining consistent gripping pressure. The SRCU Basic is intended for applications with relatively low product variation and cycle rates up to 120 picks per minute, offering a straightforward and cost-effective control option for soft-gripping systems.

With the mGrip Basic finger gripper and SRCU Basic controller, Schmalz is offering a softer approach to automating the handling of products that are difficult for conventional grippers to handle. The combination of flexible finger modules, quick reconfiguration, and straightforward pneumatic control gives manufacturers another option for handling delicate, irregular, and changing products without adding unnecessary system complexity.