Which gripper category is typically used for fragile objects?

• A. Mechanical fingers
• B. Pneumatic grippers
• C. Vacuum grippers
• D. Soft/adaptable grippers

Answer: (D)

Handling fragile objects requires a grip that distributes load evenly and can mold to the object's shape. Soft/adaptable grippers use compliant materials and flexible structures that deform with the surface, spreading contact pressure rather than concentrating it in a single point. This gentle, distributed contact minimizes indentation, cracking, or crushing of delicate items and lets the gripper adapt to irregular geometries or soft surfaces like fruit skins or glassware. Because the grip is inherently forgiving, it reduces the risk of damage during pick-and-place.

Rigid options tend to apply sharper, localized forces or rely on a rigid interface, which can be risky for fragile items. Pneumatic grippers may offer some compliance but often still rely on rigid fingers that can create peak pressures or poor conformance. Vacuum grippers depend on suction, which can be unreliable on uneven or porous surfaces and may cause slipping or surface damage if the suction force is high. In contrast, soft/adaptable grippers are designed specifically to handle delicate, irregular, or easily deformed objects by absorbing and distributing contact forces.