Robot gripper suppliers: end effectors for industrial tasks

Robot gripper selection starts with the object and the production task. Weight, shape, surface, permissible marking, presentation and release conditions determine whether mechanical fingers, vacuum, magnetism or another method is appropriate. This non-exhaustive guide covers six suppliers with public product documentation reviewed on 29 September 2026. Their catalogues establish sourcing options, not an application ranking. A useful purchase decision tests representative parts, includes the complete tooling and interface cost, and measures accepted handling cycles and recovery effort rather than nominal gripping force alone.

What must a gripper specification describe?

Provide actual parts across the expected range, including dimensional tolerances, packaging changes and surface contamination. State where contact is allowed, whether cosmetic marking matters and whether a part can deform during handling. The task also includes release: placing a component accurately into a fixture may be harder than lifting it from a tray. Define the required placement and how the process confirms that the object has left the tool.

The robot's payload allowance must accommodate the tool, mounting hardware and carried object under the manufacturer's specified conditions. Long fingers and offset loads also require attention to the supplier's allowable loading data. Request the relevant configuration drawing rather than relying on a family-level brochure. These requirements create a usable shortlist before price negotiation, especially where several apparently compatible products need different custom fingers or utilities.

Which gripping technologies does SCHUNK offer?

SCHUNK's gripping portfolio includes pneumatic, electric, magnetic, adhesive and specialised products, with parallel and centric gripping categories. It is therefore relevant when a procurement team is investigating several handling methods or an integrator needs a configurable mechanical tool. The public catalogue verifies product breadth, but does not establish that one standard product will meet a particular part's force, reach and environmental requirements.

For a proposed SCHUNK configuration, request the finger design, permitted loads, sensing arrangement and control interface together. The engineering question is whether the standard module can handle the customer's variation without excessive bespoke tooling. For a high-mix project, document what changes between parts and whether those changes require a mechanical intervention, a software setting or both.

Where does Robotiq fit?

Robotiq's adaptive gripper range includes Hand-E and two-finger products, with robot integration and application documentation. These are concrete options for assembly, handling and machine tending investigations. The product page also discusses dual-gripper arrangements. Such configurations can change loading sequences, but add tool mass and require the full motion and part-clearance envelope to be checked.

Confirm the exact gripper generation, fingers and software integration supplied with the quote. Compatibility with a robot brand does not establish compatibility with every controller version or application. Where the application involves coolant, chips or sensitive finished surfaces, ask for evidence using those conditions. Avoid treating an advertised installation time as the total time required to validate the production process.

What does OnRobot contribute to a shortlist?

OnRobot lists electric finger, vacuum and other end-of-arm products, including tools aimed at palletising and material handling. Its range is relevant to buyers who want documented packages connecting a tool to supported robot platforms. Selection should still begin with the workpiece and movement, rather than with a preferred communications accessory or a general description of collaborative use.

Ask what sensing confirms a successful grip and what the controller reports when a grasp fails. A simple electrical connection can coexist with considerable application logic. Include tool power, any required vacuum generation, mounting accessories and licences in the cost boundary. For products handling several object types, establish the recipe and recovery process when the wrong object arrives.

What can Zimmer Group supply?

Zimmer Group documents electric and pneumatic grippers across multiple handling configurations. Its catalogue provides a sourcing route for buyers who need to specify mechanical behaviour and integration details rather than purchase an undifferentiated robot accessory. A suitable model depends on the part geometry, finger arrangement, environment and required feedback.

For a production order, connect the supplier's technical drawing and load limits to the integrator's proposed fingers. Establish which parts are consumable, which are stocked locally and how a replacement is set up. A standard gripper body can simplify procurement while custom fingers remain a project-specific dependency. Retain drawings and revision control so a replacement tool reproduces the accepted process.

When are Piab and Schmalz relevant?

Piab's robot and cobot gripping range includes vacuum handling and palletising products. It is a relevant source when the process handles packaging or other objects suited to suction. For procurement, define the surface and leakage conditions, utility supply and signal confirming an adequate grasp. A vacuum component's catalogue capacity does not itself establish successful handling of porous, wrinkled or inconsistently sealed material.

Schmalz documents vacuum gripping systems and end-of-arm tooling, including configured assemblies. It is relevant where the tool needs to cover an area, accommodate a particular shape or form part of a larger handling system. Clarify what is included in the assembly and how wear surfaces are replaced. The decision should include damage, mispicks and utility consumption alongside the purchase price.

How should handling performance be tested?

NIST's grasping performance work separates the capabilities of a hand from those of other system elements. That distinction is useful in diagnosis: an unsuccessful pick may originate in perception, part presentation, grasp selection or the tool itself. Measure each stage before assigning a failure to the gripper supplier, while judging the purchase ultimately on complete application performance.

Run representative objects through the intended motion and release, including replenishment and normal changeovers. Record dropped, damaged, double-picked and wrongly placed items separately. A simple hypothetical illustrates the labour consequence: ten interventions an hour lasting one minute each consume ten staff-minutes per hour before travel or restart delays. The same successful-pick percentage can have very different economics when one failure is trivial and another stops a production line.

What makes a gripper economical over its working life?

Initial cost includes the body, fingers or cups, sensors, mounting, utilities, programming and validation. Continuing cost includes wear items, cleaning, inspection, spare inventory and the time to restore a proven configuration. Define who updates the grasp settings when parts change and who investigates ambiguous faults between vision and tooling. These responsibilities can determine whether a component remains easy to use after the integrator leaves.

The tactile-sensing resource explains a related sensing layer; the vision supplier guide covers perception. Neither replaces the mechanical qualification described here. Our assessment is that the most useful gripper is the one that repeatedly completes the specified task with manageable changeover and recovery, supported by documentation and replacement arrangements suited to the buyer's operation.