Festo DRRD-12 ... 63 - Manual (Page 18)

DRRD-12 ... 63
18 Festo – DRRD-12 ... 63-Z6 – 1310b English
1 Control sections and connections
1 8 2 3 4 5 6 7
9 aJ aA
1 Supply port (swivel clockwise)
2 Supply port (swivel anti-clockwise)
3 Flanged shaft
4 Shaft opening for guiding through cables/
compressed air tubing with centring hole
5 Thread for accessories flange
6 Thread for accessories (e.g. for clamping unit
and external shock absorbers)
7 Centring hole for accessories
8 Shock absorber for swivel angle adjustment,
secured with lock nut (x2)
9 Slot for cylinder switch
(2x for DRRD-12); (4x for DRRD-16 ...) 63)
aJ Mounting interface DRRD (2x)
aA Mounting interface for payload (4x)
Fig. 1
2 Function and application
The DRRD semi-rotary drive is a double-acting twin-piston drive. When the compressed air supply ports
are pressurized reciprocally, two pistons arranged in parallel move in the opposite direction backwards
and forwards. This linear motion is converted through pinions into a swivel motion of the drive shaft.
The end position cushioning is done:
– DRRD-...-P with flexible cushioning
– DRRD-...-Y9/Y10 with internal hydraulic shock absorbers
– DRRD-...-Y12 with external hydraulic shock absorbers ( assembly instructions).
The DRRD semi-rotary drive is intended for swivelling effective loads which have to execute a defined
angular movement.