HGRT-20-A – Festo Radial Grippers

USD $ 637.98

SKU: Festo 563906

Manufacturer Part Number: Festo 563906
Festo Radial Grippers: HGRT-20-A
OEM Spec Ref 

The Festo HGRT-20-A Radial Gripper, MPN 563906, is a state-of-the-art pneumatic handling device designed for robust and precise operations in various industrial environments. With its sophisticated double-acting, radial gripper functionality, it ensures high torque resistance and a long service life. The HGRT-20-A stands out for its synchronized sliding block guide, which allows for an adjustable opening angle up to 180 degrees, maximizing versatility in operation.

Key Features:

  • High Precision and Robustness: The device offers precise control with a maximum replacement accuracy of less than or equal to 0.2 mm and angular gripper jaw backlash of less than or equal to 0.1 degrees.
  • Efficient Operation: It features a maximum operating frequency of 3 Hz with quick opening times of 280 ms at 6 bar, contributing to optimal cycle times.
  • Durability and Construction: Made from smooth anodized aluminum with hardened steel gripper jaws, it ensures durability and resistance to wear in demanding conditions.
  • Versatile Installation and Operation: The gripper supports various mounting options and can operate with both oiled and dry compressed air, making it adaptable to different industrial setups.


  • Operational Efficiency: Enhances the speed and precision of automated processes, leading to increased productivity and reduced operational costs.
  • Customization and Flexibility: With adjustable features and compatibility with multiple sensors, it offers tailored solutions for complex automation tasks.
  • Longevity and Reliability: Designed to withstand low corrosion stress and various environmental conditions from 5 to 60 degrees Celsius, ensuring reliable performance over time.


  • Automated Assembly: Crucial for tasks requiring precise handling and positioning of components.
  • Manufacturing and Packaging: Ideal for systems where consistent performance and fast cycle times are essential.

The Festo HGRT-20-A Radial Gripper represents an advanced solution for enhancing operational efficiency and reliability in a wide range of pneumatic applications.

Technical Data

Feature Specification
Size 25
Max. Interchangeability ≤0.2 mm
Max. gripper jaw angular play ax, ay ≤0.1 deg
Max. Opening Angle 180 deg
Rotational Symmetry ≤0.2 mm
Pneumatic Gripper Repetition Accuracy ≤0.02 mm
Number of Gripper Jaws 2
Mounting Position Any
Mode of Operation Single-acting
Gripper Function Radial
Structural Design Positively driven motion sequence
Position sensing For proximity sensor
For inductive proximity sensors
Symbol 00991894
Operating Pressure 3 bar … 8 bar
Max. Operating Frequency of Pneumatic Gripper ≤3 Hz
Min. Opening Time at 6 Bar 280 ms
Min. Closing Time at 6 Bar 308 ms
Operating Medium Compressed air as per ISO 8573-1:2010 [7:4:4]
Information on operating and pilot media Operation with oil lubrication possible (required for further use)
Corrosion Resistance Class (CRC) 1 – Low corrosion stress
LABS (PWIS) Conformity VDMA24364-B2-L
Ambient Temperature 5 °C … 60 °C
Total gripping torque at 0.6 MPa (6 bar, 87 psi), opening 588 Ncm
Total gripping torque at 6 bar, closing 516 Ncm
Mass Moment of Inertia 0.74 kgcm²
Maximum Force on Gripper Jaw Fz, Static 100 N
Maximum Torque on Gripper Jaw, My Static 6.2 Nm
Maximum Torque on Gripper Jaw, Mz Static 0.5 Nm
Relubrication interval for guidance elements 10 MioCyc
Product Weight 290 g
Type of Mounting With internal thread and centering sleeve
Pneumatic Connection M5
Note on Materials RoHS-compliant
Housing Material Wrought aluminum alloy, smooth-anodized
Gripper Jaw Material Hardened steel
Weight 0.290 kg