Rotary Actuator Vane Type Size: 10, 15, 20, 30, 40 Overall length Features a compact body with a built-in (Compared with CDRB2२WU, Size 20) (Compared with CDRB2२WU, Size 20, Rotating angle 90°) angle adjuster unit and auto switch unit (Size: 20, 30, 40) 55.6 mm With auto switch Angle adjuster unit Reduced by ˾ Rotation time of 0.5 s/90° is possible. 44.4 mm Auto switch unit

Vane Type Rotary Actuator CRB Series Reduction rate Angle adjuster Overall length 21 % Angle adjuster unit Auto switch unit Auto switch unit ∗ Sizes 10 and 15 compared without angle adjustment unit. Reduction rate Piping, wiring, and angle adjustment can be performed on the same side for easier mounting. Piping Hexagon wrench Compared with CRB2 (rotating angle: 90° with angle adjustment unit and auto switch). (Sizes 10 and 15 compared without angle adjustment unit.) Easy-to-adjust start and end position with the angle adjustment bolts (adjustment as standard). Rotating angle: 90°±10° 180°±10°...

Vane Type Rotary Actuator CRB Series ˾ Shaft type variations ∗ If an auto switch is mounted, choose single shaft (options q and t). The mounting pitch and shaft configuration are the same as those for the CRB2. qSingle shaft: CRBS wDouble shaft: CRBW Round shaft eDouble shaft: CRBJ Thread for mounting workpiece is interchangeable (6 positions). (3 places for size 10) le geab chan Inter ting pitch n mou rDouble shaft: CRBK tSingle shaft: CRBT Round shaft Round shaft yDouble shaft: CRBY Chamfer Shaft configuration is interchangeable. Round shaft ˾ Mounting Standard (Without auto switch) Standard...

Vane Type Rotary Actuator CRB Series ˾ Each of the units below for the CRB2 series can be mounted to the new CRB series. ¡The vertical auto switch unit and angle adjustment unit are the same as those of the CRB2 series. Replacement of just the new CRB body can be done during maintenance. ¡Each of the units for the CRB2 series can be mounted to the new CRB without auto switch (in the case of CRBW). CRB२-C Ȝ With vertical auto switch unit (CRB2) + angle adjustment unit (CRB2)∗1 CRB series: Body (Without auto switch) CRB२-B Ȝ With angle adjustment unit (CRB2) Ȝ With vertical auto switch unit (CRB2)∗1...

Vane Type Rotary Actuator CRB Series Model Selection Model Selection CONTENTS Ȝ Vane Type Rotary Actuator CRB Series p. 15 Construction Dimensions Ȝ Vane Type Rotary Actuator With Vertical Auto Switch Unit CRB२-A Series p. 25 Ȝ Vane Type Rotary Actuator With Angle Adjustment Unit CRB२-B Series With Vertical Auto Switch Unit and Angle Adjustment Unit CRB२-C Series How to Order Ȝ Prior to Use Auto Switch Connections and Examples Ȝ Specific Product Precautions Ȝ Safety Instructions Back cover Auto Switch Mounting Component Unit

Rotary Actuator Model Selection CONTENTS 1 Calculation of Moment of Inertia Ȝ Equation Table of Moment of Inertia ……………………………………………………………… p. 7 Ȝ Calculation Example of Moment of Inertia ………………………………………………………… p. 8 Ȝ Graph for Calculating the Moment of Inertia ……………………………………………………… p. 9 2 Calculation of Required Torque Ȝ Load Type …………………………………………………………………………………………… p. 10 Ȝ Effective Torque …………………………………………………………………………………… p. 10 3 Confirmation of Rotation Time 4 Calculation of Kinetic Energy Ȝ Allowable Kinetic Energy and Rotation Time Adjustment Range ……………………………… p. 11 Ȝ Moment of Inertia

Selection Procedures Selection Example Model Selection Rotary Actuator Model v List of Operating Conditions Initially selected models Operating pressure [MPa] Mounting orientation Load type Static load Resistance load Inertial load Load dimensions [m] Load mass [kg] Rotation time [s] Rotating angle [rad] The unit for the rotating angle is radian. 180° = π rad 90° = π/2 rad Initially selected model: CRBS30-180 Operating pressure: 0.4 MPa Mounting orientation: Vertical Load type: Inertial load Rotation time: 0.6 s Rotating angle: θ = π rad (180°) Calculation of Moment of Inertia Calculation of...

Rotary Actuator Model Selection 1 Calculation of Moment of Inertia The moment of inertia is a value indicating the inertia of a rotating body, and expresses the degree to which the body is difficult to rotate, or difficult to stop. It is necessary to know the moment of inertia of the load in order to determine the value of required torque or kinetic energy when selecting a rotary actuator. Moving the load with the actuator creates kinetic energy in the load. When stopping the moving load, it is necessary to absorb the kinetic energy of the load with a stopper or a shock absorber. The kinetic energy...

Rotary Actuator Model Selection Centre of gravity of the load Example: q If the load is the thin rectangular plate: Obtain the centre of gravity of the load as Ι1, a provisional shaft. ˾ If the load is divided into multiple loads: Example: q If the load is divided into the 2 cylinders: The centre of gravity of load 1 matches the shaft The centre of gravity of load 2 differs from the shaft Obtain the moment of inertia of load 1: w Obtain the actual moment of inertia Ι 2 around the shaft, with the premise that the mass of the load itself is concentrated in the load’s centre of gravity point. w...