GRI-PHI – Piezoelectric Microgripper

Micro-gripper plays an important role in micromanipulation and micro-assembly tasks.

Typically, it is employed for the grasp-hold-release operation of micro objects. Suitable for high dynamic applications, thanks to the low inertias that allow high speeds, this piezoelectric micro-gripper improves your system by supplying a high-resolution gripping solution for motion and assembly of micro-sized objects. This high precision is particularly important for the manipulation of small and fragile objects, like fiber optics or biological sample.

Our gripper mechanism is designed and verified by performing FEM analysis (Finite Element Method).

The gripper is driven with different piezoelectric stack actuators, according to the performance to reach. Position sensors can be adopted to meet every customer specification. Furthermore, micro-gripper are full customizable: opening time, opening, encumbrance, gripping force, gripper shape according to objects to hold, normally close or normally open.

  • Gripper stroke up to 0.70 mm
  • Clamping force up to 4 N
  • Adjustable gripper opening
  • Gripper shape on customer request
  • Closed-loop version available
  • High vacuum option

Discover our new range of products:

GRI-PHI: the piezoelectric microgrippers

Applications:

  • Micro optics manipulation;
  • Fiber optics connection;
  • Fiber bundle positioning;
  • Precision mounting and adjusting;
  • Biological sample manipulation;
  • High dynamic applications.

Overview:

  • Gripper stroke: up to 70 mm;
  • Clamping force: up to 4 N;
  • Dimensions: 54 x 22 x 7 mm;
  • Gripper opening adjustable by grub screw;
  • Gripper shape on customer request;
  • High Vacuum Version;
  • Position sensor available.

Encoding GRI-PHI: choose the configuration which better suits your needs

Choose between the following options to create your requested code:

 

GS.9XNY

GS.9 series comes in two different product ranges, using different operational modes:

  • a = single effect, with only one arm moving;
  • b = double effect, with both arms moving.

GRI-PHI GS.9 series comes with a wide range of performance. Performance code is a number from 1 to 4, whose details can be evinced in the Technical Data.

GRI-PHI comes with 3 standard options for its jaws, as can be seen in the gallery below. This part of the gripper can be fully customized.

GRI-PHI grippers have been designed to operate under high vacuum conditions, in line with all the latest generation of Phi Drive products.

Technical Data

Models GS9a.1 GS9a.2 GS9a.3 GS9a.4  
Mechanical and Positioning Specifications
Gripping Stroke 500 700 400 600 μm
Clamping Force at half stroke 1 1.5 1.5 2 N
Gripping time < 50 < 50 < 50 < 50 ms
Resolution < 100 < 100 < 80 < 80 nm
Speed 10 14 8 12 mm/s
Initial Gap < 0.4 < 0.4 < 0.4 < 0.4 mm
Axis of Motion X X X X
 
Drive & Electronic Specifications
Capacitance of Piezostack 1.50 1.44 1.50 1.44 μF
Input Voltage Range 0 to +100 0 to +150 0 to +100 0 to +150 V
Models GS9b.1 GS9b.2 GS9b.3 GS9b.4  
Mechanical and Positioning Specifications
Gripping Stroke 500 700 400 600 μm
Clamping Force at half stroke 2 3 3 4 N
Gripping time < 50 < 50 < 50 < 50 ms
Resolution < 100 < 100 < 80 < 80 nm
Speed 10 14 8 12 mm/s
Initial Gap < 0.4 < 0.4 < 0.4 < 0.4 mm
Axis of Motion X X X X
 
Drive & Electronic Specifications
Capacitance of Piezostack 1.50 1.44 1.50 1.44 μF
Input Voltage Range 0 to +100 0 to +150 0 to +100 0 to +150 V

Dimensions

 

 

 

Code A B C D E
GS9a 48.0 22.0 7.0 54.3 10.3

*All dimensions are given in mm.

 

 

 

Code A B C D E
GS9b 48.0 16.0 8.0 54.3 11.6

*All dimensions are given in mm.