Transair Air System

Wafer Grippers

Wafer grippers are pneumatically operated special grippers with vacuum generation. They are excellently suited for the handling of sensitive parts, especially photovoltaic components such as wafers and cells. Because of their high volume flow and the moderate vacuum level, the wafer grippers are excellently suited for these extremely sensitive applications.

Advantages of Wafer Grippers

  • Extremely fast and precise handling.
  • Achievement of the shortest cycle times (< 1 second).
  • Maximum output quantity and cell quality.
  • High volume flow with low air consumption.
  • Integrated vacuum generation including blow-off function.
  • Controlled discharge of drawn-in air (optional).
  • Typical Areas of Application

  • Handling of photovoltaic components.
  • Handling of sensitive components.
  • Construction

  • Modular over-all design with contact surface, robot interface, sensors and optional features.
  • Gripper sizes available for standard cell sizes 125 mm and 156 mm.
  • Various contact surfaces available (e.g. transparent).
  • Integrated pneumatic vacuum generation with high suction rate and controlled air discharge (accessory).
  • Low weight plastic components.
  • Your Advantages

  • High speed, high accuracy handling for cycle times less than 1 second.
  • Less operating cost than Bernoulli grippers.
  • Minimal torsional forces and minimal conchoidal fracture risk.
  • Reliable gripping and handling even of deformed and broken wafers.
  • No contamination of working range with silicon dust or fragments.
  • Precise positioning and very short cycle times.
  • Minimal surface contamination and reduction of blind spots.
  • Optional breakage detection through backlit gripper surface.
  • Highlights

  • Large contact area between wafer and gripper for maximum grip.
  • Moderate air consumption.
  • Low vacuum level.
  • High throughput vacuum generation.
  • Controlled air discharge.
  • Rapid venting of vacuum chamber.
  • Gripper surface e.g. made of PEEK (Polyetheretherketone).
  • Modular concept with various surface materials, sensors, and optional shock absorption elements.