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Summary of Contents for SMC Networks CRJ Series
- Page 1 DOC. No. CRJB-OM00002-A PRODUCT NAME Mini Rotary Actuator MODEL / Series / Product Number CRJ*05,1...
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Page 2: Table Of Contents
Contents Safety Instructions Outline Specifications Mass Effective torque Internal construction and parts CRJB05～1 CRJU05～1 Basic circuit Circuit structure Mounting Load restrictions Operation of shaft couplings Rotating Direction and Rotating Angle Using a body as a flange Piping Air supply Setting of rotation time Moment of inertia Calculation formulae for moment of inertia Kinetic energy... -
Page 3: Safety Instructions
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC) , and other safety regulations. - Page 4 Safety Instructions Caution 1.The product is provided for use in manufacturing industries. The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary. If anything is unclear, contact your nearest sales branch.
- Page 5 Design / Selection Warning 1. Confirm the specifications. Products represented in this catalog are designed only for use in compressed air systems. Do not operate at pressures or temperatures, etc., beyond the range of specifications, as this can cause damage or malfunction. (Refer to the specifications.) Please contact SMC when using a fluid other than compressed air.
- Page 6 12. Select a speed within the product’s allowable energy value. If the product’s kinetic energy of the load exceeds the allowable value, it could damage the product, and cause a hazard to humans and damage the machinery and equipment. 13. Provide a shock absorber if the kinetic energy that is applied to the product exceeds the allowable value.
- Page 7 Mounting Warning 1. Operation manual Install the product and operate it only after reading the operation manual carefully and understanding its contents. Also, keep the manual in a location where it can be referred to as necessary. 2. Ensure sufficient space for maintenance activities. When installing the products, allow access for maintenance.
- Page 8 12. Place an external stopper in a position that is away from the rotating shaft. If the stopper is placed near the rotating shaft, the torque that is generated by the product itself will cause the reaction force which is directed to the stopper to be redirected and applied to the rotating shaft. This will lead to the breakage of the rotating shaft and bearing.
- Page 9 Caution 1. Do not use organic solvent to wipe the area of the name plate that shows the model. It will erase what is indicated on the name plate. 2. Do not hit the rotating shaft by securing the body or hit the body by securing the rotating shaft.
- Page 10 Lubrication Warning 1. This product should be used without lubrication. Although it will operate even if it is lubricated, it could lead to sticking or slipping. Air Supply Warning 1. Type of fluids Please consult with SMC when using the product in applications other than compressed air. 2.
- Page 11 Operating Environment Warning 1. Do not use in an atmosphere having corrosive gases, chemicals, sea water, water, steam, or where there is direct contact with any of these. Refer to the construction for information on the rotary actuator material. 2. Do not expose the product to direct sunlight for an extended period of time. 3.
- Page 12 Auto Switches Precautions Design / Selectio Warning 1. Confirm the specifications. If the product is used with excess load applied or beyond the specification range, this may cause the product to break or malfunction. We do not guarantee against any damage if the product is used outside of the specification range.
- Page 13 8. Keep wiring as short as possible. <Solid state> Be sure to use a wire length 100m or less. When the wire length is long, we recommend the ferrite core should be attached to the both ends of the cable to prevent excess noise. A contact protection box is not necessary for solid state switches due to the nature of this product construction.
- Page 14 Mounting / Adjustment Caution 1. Do not drop or bump. Do not drop, bump or apply excessive impacts (1000m/s or more for solid state auto switches) while handling. Although the body of the auto switch may not be damaged, the inside of the auto switch could be damaged and cause malfunction.
- Page 15 2. Wire separately from power lines of high voltage lines, avoiding parallel wiring of wiring in the same conduit with these lines. If an inrush current is generated, the noise may cause the auto switch to malfunction. 3. Be certain to connect the load before power is applied. <2-wire type>...
- Page 16 Operation Environment Warning 1. Never use in an atmosphere with explosive gases. The structure if auto switches is not intended to prevent explosion. This may lead to explosion hazard. Please contact SMC concerting ATEX compliant products. Caution 1. Do not use in an area where a magnetic field is generated. Auto switches will malfunction or magnets inside rotary actuator will become demagnetized.
- Page 17 Maintenance Warning 1. Removal of equipment, and supply/exhaust of compressed air. Before any machinery or equipment is removed, first ensure that the appropriate measures are in place to prevent the fall or erratic movement of driven objects and equipment, then cut off the electric power and reduce the pressure in the system to zero.
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Page 18: Outline
Outline This operation manual explains “Rack and Pinion Type Mini Rotary actuator”. When using the product, load (moment of inertia), rotation time and other factors have to be considered. So, confirm the specification of the product prior to use. Specifications Table 1. -
Page 19: Mass
Mass Mass Table 3. Model No. Mass Size CRJB05-90 CRJB05-100 CRJB05-180 CRJB05-190 Basic type CRJB 1-90 CRJB 1-100 CRJB 1-180 CRJB 1-190 CRJU05-90 CRJU05-180 With external stopper CRJU1-90 CRJU1-180 *Mass of auto switch is not included. Effective torque Effective torque table (N･m) Table 4. -
Page 20: Internal Construction And Parts
Internal structure and parts description CRJB05~1 ６ ６ ５ ５ Hexagon socket head set screw Wear ring Magnet Piston seal O-ring Round head no. 0 Philips screw Bearing Cover Bearing retainer Shaft Piston Body Description Note Qty. - 19 -... -
Page 21: Crju05~1
CRJU05~1 ５ ５ Hexagon socket head set screw Wear ring Magnet Piston seal O-ring Hexagon nut Round head no. 0 Philips screw Hexagon socket head cap screw Bearing Hexagon socket head set screw Stopper retainer Holder Stopper Cover Bearing retainer Shaft Piston Body... -
Page 22: Basic Circuit
Basic circuit for using rotary actuator Circuit structure The basic circuit for operating the rotary actuator using an air filter, regulator, solenoid valve and speed controller is shown in Fig. (1) below. Regulator Speed controller Air filter Solenoid valve Rotary actuator Fig.1 Basic circuit - 21 –... -
Page 23: Mounting
Mounting Load restrictions Provided that a dynamic load is not generated, a load in the axial direction can be applied up to the value that is indicated in the table (5) below. However, applications in which the load is applied directly to the shaft should be avoided as much as possible. -
Page 24: Rotating Direction And Rotating Angle
Rotating Direction and Rotating Angle ・The shaft turns clockwise when the A port is pressurized, and counterclockwise when the B port is pressurized. ・For actuators with external stopper, the rotation end can be set within the range shown in the drawing by adjusting the stopper bolt. -
Page 25: Using A Body As A Flange
Using a body as a flange Mini rotary actuator can be mounted from 3 directions, 2 shaft directions and 1 side direction. 軸方向取付 側面取付 Shaft direction mounting Side mounting 上面取付 Top mounting 底面取付 Bottom mounting Table 7. Mounting dimension on side face Table 6. -
Page 26: Air Supply
Also, if pipe tape is used, leave 1.5 to 2 thread ridges exposed at the end of the threads. Fig. 5 Wrapping of pipe tape Air supply Air supplied to the rotary actuator shall be cleaned by the filter. CRJ series is lubrication free. - 25 –... -
Page 27: Setting Of Rotation Time
Setting of rotation time It is necessary to calculate the inertial load and kinetic energy in the application prior to setting the speed of the actuator. The inertial load generated in the application may be high even if the torque required in the application is low, this may lead to damage to the internal components of the actuator. -
Page 28: Calculation Formulae For Moment Of Inertia
Calculation formulae for moment of inertia I: Moment of inertia [ kg・m ] m: Load mass [ kg ] 1. Thin shaft 6. Thin round plate Position of rotational axis: Perpendicular to the Position of rotational axis: Through the center of shaft through the center of gravity diameter ・... -
Page 29: Kinetic Energy
Kinetic energy Table (9) shows the allowable kinetic energy of the rotary actuator. The end angular speed ω is obtained by: Table 9. Allowable kinetic energy Allowable kinetic energy Model (mJ) θ: Rotation angle [ rad ] ｔ: Rotation time [ s ] Basic type CRJB05... -
Page 30: Calculation Of Required Torque
Calculation of required torque Load type The calculation method required torque varies depending on the load type. - 29 -... -
Page 31: Auto Switch Type For Rotary Actuator
Auto switch type for rotary actuator The rotary actuator has a magnet mounted on its piston and an auto switch on the outside of the body to detect the piston position (single flat and key groove position). Rotary actuator have a short piton stroke, so detection should be done at the stroke end. -
Page 32: Proper Auto Switch Mounting Position And Operating Range
Proper auto switch mounting position and operating range For D-M9 Fig.8 operating range of auto switch For D-F8 Fig.7 Proper auto switch mounting position most sensitive position Table 11. Auto Switch Rotation range / Actuation / D-M9 auto switch D-F8 auto switch Rotating Size Operation... -
Page 33: Cautions On Mini Rotary Actuator With Auto Switch
Cautions on mini rotary actuator with auto switch If a size 05 actuator with auto switch is being used, keep the magnetic body away at least 2mm or more from the bottom of the actuator. If the magnetic body comes closer than 2mm, malfunction of the auto switch may occur due to the magnetic force drop. -
Page 34: Maintenance And Inspection
Maintenance and Inspection Periodic inspection is necessary for optimum use. Generally, annual inspection is recommended for the mini rotary actuator. Even if no problem is found, seal parts replacement is recommended every three years. It is highly possible that the actuator is operated out of specification when the components like shaft, piston, bearing are broken. - Page 35 Stopper ストッパ Hexagon socket head ストッパ押エ Stopper retainer 六角穴付ボルト cap screw Hexagon socket head 六角穴付ボルト cap screw Holder assembly ホルダＡss’y 一面取 Single flat Mini rotary actuator ミニロータリアクチュエータ 図８ 図７ Fig. 11 Fig. 10 ① Assemble the stopper retainer to the stopper temporarily. Then place the stopper retainer in the single flat position and tighten with hexagon socket head cap screws.
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Page 36: Troubleshooting
Troubleshooting Problem Possible cause Solution Supply pressure is not applied Correctly set the regulator at the supply correctly. pressure side. The directional switching Correctly apply a signal to the directional valve (such as a solenoid switching valve (such as a solenoid valve). valve) does not switch. - Page 37 Problem Possible cause Solution Contact SMC for repair. After that, take the Air leakage from the measures below. Piston seal is worn out. Shaft. (1)Inspect the air filter, do blow air through the piping. Replace the rotary actuator with the new one. After that, take the measures below.
- Page 38 Revision history A:Corrected to the latest format 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 https://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. ©...
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