Rotary Actuators (Series RI)

Benefits

  • Series RI Rotary Actuators incorporate internal air passages within the rotary pinion manifold to allow pneumatic coupling to other devices without tubing. Provides protection from severed or damaged air lines eliminating downtime.

  • Available in three sizes (25, 32, and 50 mm) and six torque ranges from 32 to 414 in-lb at 87 psi [3.6 to 46.8 Nm at 6 bar].
  • Units incorporate a hollow pinion for routing items such as electrical cable.
  • Provides 0 to 180 degrees rotation and are infinitely adjustable throughout the entire range if ordered with angle adjustment.
  • Features enclosed inner tubing for protection from external contaminates.
  • Hub manifold interface provides from 4 to 8 passages through the pinion for maximum flexibility.
  • Body and hub locating sleeve pins provide accurate location.
  • Zero backlash at ends of rotation for precise rotary positioning.
  • Optional three position units are available providing three hub positions.
  • PHD Series 6790 Switches or proximity switch ready are available for interfacing to electrical controls.
  • Optional shock absorbers or bumpers provide quiet operation and end of rotation deceleration.
  • Series RI Rotary Actuators can be supplied in either imperial or metric units.
  • Optional port flow controls provide accurate control of rotation speed.

 Specifications

Sizes: 3
Maximum Torque Output: 32 to 414 in-lb [3.6 to 46.8 Nm]

Size
25 mm
32 mm
50 mm

Piston Diameter
.98 in
[25 mm]
1.26 in
[32 mm]
1.97 in
[50 mm]

Piston Area
.76 in
[4.90 cm]
1.25 in
[8.06 cm]
3.04 in
[19.62 cm]

Maximum Torque Output: 32 to 414 in-lb [3.6 to 46.8 Nm]

Size
25 mm
32 mm
50 mm

Series RIS
.36 in-lb
[.6 Nm/bar]
.73 in-lb
[2.4 Nm/bar]
2.37 in-lb
[3.9 Nm/bar]

Piston Area
.74 in-lb
[1.2 Nm/bar]
1.45 in-lb
[2.4 Nm/bar]
4.75 in-lb
[7.8 Nm/bar]

Piston Seals
Block Vee

Piston
Free Floating, Acetal Material

Pinion Shafts
One Piece Alloy Steel with Center Through Hole

Racks
Alloy Steel

End Caps
Clear Anodized Aluminum

Body
Hardcoated Aluminum

Bearings
Two Radial Ball Bearings

Ports:
NPT or BSPP

Breakaway Pressure
Under 5 psi [0.35 bar]

Lubrication
Permanent for Non-Lube Air

Working Pressure
100 psi [7 bar] Maximum

Standard Rotations
Fully Adjustable (0 to 180º)

Backlash
No Backlash at end of Rotation

Life
Designed for 5 million Trouble-Free Cycles

Operating Temperatures
Options
  

Angle Adjustment Unit
AB, AC, AW
-20º F to 160º F
[-28.9º C to 71.1º C]

Shock Absorber Unit
NB, NC, NW
32º F to 150º F
[0º C to 65.6º C]

Rotation Speed Control Unit
PB, PC, PW
5º F to 160º F
[-15º C to 71.1º C]
Line
2004 Neff Engineering Co., Inc.