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PRG 26-90-AS Illustration similar

PRG 26-90-AS

Radial gripper

ID 303681

Radial gripper PRG, Size: 26, pneumatic, with gripping force maintenance: AS

  • Opening angle: 90 °
  • Closing moment: 2.6 Nm
  • Max. ambient temperature: 90 °C
Closing force (with finger lengths of 0 mm) [N] 179
Opening angle per jaw [°] 90
Closed angle per jaw [°] 3
Closing moment [Nm] 2.6
Closing moment generated by spring [Nm] 0.6
Weight [kg] 0.135
Recommended workpiece weight [kg] 0.3
Fluid consumption double stroke [cm³] 9
Min. operating pressure [bar] 4
Max. operating pressure [bar] 6.5
Nominal operating pressure [bar] 6
Closing time [s] 0.09
Opening time [s] 0.14
Closing time with spring only [s] 0.13
Max. permissible finger length [mm] 40
Max. permissible inertia per chuck jaw [kgcm²] 0.86
IP protection class 20
Min. ambient temperature [°C] 5
Max. ambient temperature [°C] 90
Repeat accuracy [mm] 0.05
Length X [mm] 26
Width Y [mm] 22
Height Z [mm] 76
Moment Mx max. [Nm] 3
Moment Mz max. [Nm] 1
Max. axial force Fz max. [N] 140
*The unit can be actuated without an external customized throttling at the given value of max. mass moment of inertia per jaw. In case of higher mass moments of inertia, an additional throttling is possible.
The curve applies for 90° versions. For other versions the curve must be parallely off-set according to the opening and closing times.

General notes about the series

Closing moment
is the arithmetic sum of the individual moment applied to each jaw. The indicated closing moment will be reached at an opening angle of 0°. A detailed closing moment course depending on the opening angle can be taken out of the diagram "closing moment course".

Finger length
is measured from the reference surface as the distance P in direction to the main axis.

Repeat accuracy
is defined as a distribution of the end Position for 100 consecutive strokes.

Workpiece weight
is calculated for force-fit gripping with a coefficient of static friction of 0.1 and a safety factor of 2 against workpiece slippage at acceleration due to gravity g. For form-fit or capture gripping, there are significantly higher permissible workpiece weights.

Closing and opening times
are movement times of the base jaws only, without application-specific gripper fingers. Valve switching times, hose fill times, or PLC reaction times are not included, and are to be considered when cycle times are calculated.

Operating principle
Slotted link gear

Housing material
Aluminum alloy, anodized

Base jaw material
Steel

Actuation
pneumatic, with filtered compressed air as per ISO 8573-1:2010 [7:4:4].

Warranty
24 months

Service life characteristics
on request

Scope of delivery
Centering sleeves, O-rings for direct connection, assembly instructions (operating manual with declaration of incorporation is available online)

Gripping force maintenance device
possible by using the version with mechanical gripping force maintenance or pressure maintenance valve SDV-P