Rotary Table, Rack And Pinion Type, CRA1 Series
Caution
- Refer to the catalog for details on product specifications.
- Product images may be representative. Refer to the manufacturer's catalog for details.
Product Description
[Features]
· The model D-M9□ compact auto switch can be equipped.
· Overall width reduced by up to 14 mm.
· Mountable on 2 surfaces.
· Auto switch can be mounted from the front.
· Weight reduced by up to 14%.
· Mounting compatibility with existing models.
· The cushion seal is replaceable.
· Easy adjustment of the cushion valve.
· The ports, cushion valve and auto switch are all located on the same surface for improved usability.
· Many variations of shaft type.
· Can be mounted in a way that is suitable for the operating conditions/environment.
Model Number Notation
Model Number Notation
Rotary Actuator, Rack & Pinion Type, CRA1 Series Specifications
Mountable on 2 surfaces
Auto switch can be mounted from the front
| Type | Pneumatic | Air-hydro | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | 30 | 50 | 63 | 80 | 100 | 50 | 63 | 80 | 100 |
| Fluid | Air (non-lube) | Turbine oil | |||||||
| Max. operating pressure | 1.0 MPa | ||||||||
| Min. operating pressure | 0.1 MPa | ||||||||
| Ambient and fluid temperature | 0°C to 60°C (no freezing) | ||||||||
| Cushion | Not attached, air cushion | None | |||||||
| Backlash | None* | Within 1° | |||||||
| Tolerance in rotating angle | - | 0 to +4 ° | |||||||
*Since CRA1□30 has a stopper installed, there is no backlash produced under pressure.
Effective Torque
(unit: N·m)
| Size | Operating pressure (MPa) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | |
| 30 | 0.38 | 0.76 | 1.14 | 1.53 | 1.91 | 2.29 | 2.67 | 3.05 | 3.44 | 3.82 |
| 50 | 1.85 | 3.71 | 5.57 | 7.43 | 9.27 | 11.2 | 13.0 | 14.9 | 16.7 | 18.5 |
| 63 | 3.44 | 6.88 | 10.4 | 13.8 | 17.2 | 20.6 | 24.0 | 27.5 | 31.0 | 34.4 |
| 80 | 6.34 | 12.7 | 19.0 | 25.3 | 31.7 | 38.0 | 44.4 | 50.7 | 57.0 | 63.4 |
| 100 | 14.9 | 29.7 | 44.6 | 59.4 | 74.3 | 89.1 | 104 | 119 | 133 | 149 |
Allowable Kinetic Energy / Adjustable Range of Rotation Time Safe in Operation
| Size | Allowable kinetic energy (J) | Adjustable range of rotation time safe in operation (s/90°)* | ||
|---|---|---|---|---|
| Without cushion | With cushion* | |||
| 30 | 0.01 | 0.12 | Cushion angle 35 ° | 0.2 to 1 |
| 50 | 0.05 | 0.98 | 0.2 to 2 | |
| 63 | 0.12 | 1.50 | 0.2 to 3 | |
| 80 | 0.16 | 2.00 | 0.2 to 4 | |
| 100 | 0.54 | 2.90 | 0.2 to 5 | |
- *Allowable kinetic energy of the product with air cushion is the maximum absorbed energy when the cushion valve adjustment is optimized.
- *See the manufacturer's catalog for the air-hydro type's adjustable range of rotation time safe in operation.
Rotation Range of Keyway
The shaft rotates clockwise when the pressure is applied from the A port while it rotates counterclockwise when the pressure is applied from the B port.
Rotation range of keyway: size 30
Rotation range of keyway: size 50 to 100
External dimensional drawing
Basic type: C□RA1BS
(Unit: mm)
Size 30 / single shaft / C□RA1BS dimensional drawing
- Drawing shows the appearance for rotation of 90°.
- Dimensions show pressurization to B port.
- Drawing shows that the auto switch is mounted on the side opposite to the port side. (Dimensions with an asterisk mark (*) are not required for actuators without the auto switch.)
*The dimensions inside ( ) are for rotation of 180°.
*A parallel key is included in the same package (but not assembled).
(Unit: mm)
Double shaft / C□RA1BW dimensional drawing
*øD is the shaft dimension.
(Unit: mm)
Size 50, 63, 80, 100 / single shaft / C□RA1BS dimensional drawing
- Drawing shows the appearance for rotation of 90° and 100°.
- Dimensions show pressurization to B port.
- Drawing shows the auto switch mounted on the port side.
*( ) are the dimensions for rotation of 180° and 190°.
(Unit: mm)
Double shaft / C□RA1BW dimensional drawing
*øD is the shaft dimension.
(Unit: mm)
| Size | Port size*1 | A | B | C | D (g6) | DD (h9) | F | H | J | K | With auto switch | Without auto switch | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | SB | SC | SD | SE | S | |||||||||||
| 50 | Rc 1/8 | 62 | 48 | 46 | 15 | 25 | 2.5 | 36 | M8 × 1.25 Depth 8 | 5 | 156 (189) | 1.5 | 5 | 14.5 | 33 | 144 (177) |
| 63 | Rc 1/8 | 76 | 60 | 57 | 17 | 30 | 2.5 | 41 | M8 × 1.5 Depth 12 | 5 | 175 (213.5) | 1.5 | 5 | 21.5 | 33 | 163 (201.5) |
| 80 | Rc1/4 | 92 | 72 | 70 | 20 | 35 | 3 | 50 | M8 × 1.75 Depth 13 | 5 | 199 (243) | 1.5 | 5 | 29.5 | 33 | 186 (230) |
| 100 | Rc3/8 | 112 | 85 | 85 | 25 | 40 | 4 | 60 | M8 × 1.75 Depth 14 | 5 | 259 (325) | 1.5 | 5 | 39.5 | 33 | 245 (311) |
| Size | U | W | BA | BB | BC | ★ CA | ★ CB | Key dimensions*2 | |
|---|---|---|---|---|---|---|---|---|---|
| b | L1 | ||||||||
| 50 | 98 | 17 | 17 | 8.5 | 6 | 9.5 | 7.5 | 5 (-0.030 to 0) | 25 |
| 63 | 117 | 19.5 | 20 | 10 | 7 | 11 | 8 | 6 (-0.030 to 0) | 30 |
| 80 | 142 | 22.5 | 23.5 | 12 | 8 | 13 | 9 | 6 (-0.030 to 0) | 40 |
| 100 | 172 | 28 | 25 | 12.5 | 8 | 14 | 10 | 8 (-0.036 to 0) | 45 |
*1 In addition to Rc, G, NPT and NPFT are also available.
*2 A parallel key is included in the same package (but not assembled).
★ For model with air cushion
Foot type: C□RA1LS
(Unit: mm)
Size 30 dimensional drawing
- Drawing shows the appearance for rotation of 90°.
- Dimensions show pressurization to B port.
- Drawing shows that the auto switch is mounted on the side opposite to the port side.
*The dimensions inside ( ) are for rotation of 180°.
Size 50, 63, 80, 100 dimensional drawing
- Drawing shows the appearance for rotation of 90° and 100°.
- Dimensions show pressurization to B port.
- Drawing shows the auto switch mounted on the port side.
*( ) are the dimensions for rotation of 180° and 190°.
(Unit: mm)
| Size | LA | LB | LC | With auto switch | Without auto switch | LF | LH | LT | ||
|---|---|---|---|---|---|---|---|---|---|---|
| LD | LE | LD | LE | |||||||
| 50 | 62 | 9 | 44 | 212 (245) | 236 (269) | 200 (233) | 224 (257) | 41 | 108 | 4.5 |
| 63 | 76 | 11 | 55 | 247 (285.5) | 275 (313.5) | 235 (273.5) | 263 (301.5) | 48 | 127 | 5 |
| 80 | 92 | 13 | 67 | 287 (331) | 329 (373) | 274 (318) | 316 (360) | 58 | 154 | 6 |
| 100 | 112 | 13 | 87 | 347 (413) | 389 (455) | 333 (399) | 375 (441) | 73.5 | 189.5 | 6 |
*Other dimensions are the same as the basic type.
Precautions
Caution on Design
- *Do not use a rotary actuator of the air-hydro type near fire or on equipment or machinery whose ambient temperature exceeds 60°C.
Since the air-hydro type uses a flammable hydraulic fluid, there is a danger of potential fire. - *Do not use in an environment, equipment, or machine that is not compatible with oil mist.
Rotary actuators of the air-hydro type generate an oil mist during operation which may affect the environment. - *Be sure to install an exhaust cleaner on the directional control valve for the rotary actuator of the air-hydro type.
A very small amount of hydraulic fluid is discharged from the exhaust port of the rotary actuator of the air-hydro type's directional control valve, which may contaminate the surrounding area. - *Install a rotary actuator of the air-hydro type in locations where it can be serviced easily.
Since the rotary actuator of the air-hydro type requires maintenance, such as refilling of hydraulic fluid and bleeding of air, ensure sufficient space for these activities. - *Do not use in cases where external leakage of hydraulic oil may adversely affect equipment or machinery.
Although it occurs in minute amounts, a certain amount of sliding leakage from the piston seal is unavoidable with the rotary actuator of the air-hydro type. Because of the construction of the rotary actuator of the air-hydro type, hydraulic oil may leak into the outside due to sliding leakage.
Caution on Selection
- *Air hydro-type rotary actuators should be selected in combination with the air-hydro unit.
- *Selecting a proper air-hydro unit is necessary for good operation of the rotary actuator of the air-hydro type.
- *Use self-align fittings in conjunction with the piping for the rotary actuator of the air-hydro type.
Do not use a single-action fitting with the piping for the rotary actuator of the air-hydro type, as this may result in oil leakage.
*See the manufacturer's catalog for product information other than the above.