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Summary of Contents for SMC Networks MLGC Series
- Page 1 DOC. no. DOC1120146 Product Name Guide Cylinder Built-in Fine Lock Cylinder Compact Type Model / Series / Product Number MLGC Series...
- Page 2 Contents Safety Instructions Product features How to Order Model/Specifications Cylinder Specifications Fine Lock Specifications Theoretical Output Weight Moving Parts Weight Allowable Kinetic Energy when Locking Holding Force of Spring Locking (Max. static load) Holding Force of Pneumatic Locking (Max. static load) Stopping Accuracy Construction Principle Pneumatic Circuit...
- Page 3 Safety Instruction 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)*1),and other safety regulations. ※1) ISO 4414: Pneumatic fluid power - General rules and safety requirements for systems and their components ISO 4413: Hydraulic fluid power -- General rules and safety requirements for system and their components IEC 60204-1: Safety of machinery -- Electrical equipment of machines (Part 1: General requirements)
- Page 4 Safety Instruction Caution SMC develops, designs, and manufactures products to be used for automatic control equipment, and provides them for peaceful use in manufacturing industries. Use in non-manufacturing industries is not allowed. Products SMC manufactures and sells cannot be used for the purpose of transactions or certification specified in the Measurement Act of each country.
- Page 5 Product features Guide Cylinder Built-in Fine Lock Cylinder Compact Type MLGC Series φ20, φ25, φ32, φ40, φ50 Compact integration of guide rods and a fine lock cylinder with a built-in locking mechanism ● Locking in both directions is possible. Locking in either side of cylinder stroke is possible, too.
- Page 6 1. How to Order Applicable Auto Switches ー 1 ー...
- Page 7 2. Model/Specifications * Intermediate strokes and short strokes other than the above are produced upon receipt of order. 3. Cylinder Specifications Constraints associated with the allowable kinetic energy are imposed on the speeds at which the piston can be locked. The maximum speed of 750 mm/s can be accommodated if the piston is to be locked in the stationary state for the purpose of drop prevention.
- Page 8 5. Theoretical Output Note) Theoretical output (N) = Pressure (MPa) x Piston area (mm2) 6. Weight 7. Moving Parts Weight ー 3 ー...
- Page 9 8. Allowable Kinetic Energy when Locking 9. Holding Force of Spring Locking (Max. static load) Note) Holding force at piston rod extended side decreases approximately 15%. 10. Holding Force of Pneumatic Locking (Max. static load) 1. The holding force is the lock’s ability to hold a static load that does not involve vibrations or shocks, after it is locked without a load.
- Page 10 12. Construction Principle ●Spring locking type ●Pneumatic locking type ●Spring and pneumatic locking type ー 5 ー...
- Page 11 13. Pneumatic Circuit 1）Be certain to use an pneumatic circuit which will apply balancing pressure to both sides of the piston when in a locked stop. In order to prevent cylinder lurching after a lock stop, when restarting or when manually unlocking, a circuit should be used to which will apply balancing pressure to both sides of the piston, thereby canceling the force generated by the load in the direction of piston movement.
- Page 12 1）3-position pressure center solenoid valve and regulator with backflow function can be replaced with two 3-port normally open valves and a regulator with relief function. * The symbol for the fine lock cylinder in the pneumatic circuit uses SMC original symbol (Fine lock cylinder).
- Page 13 14. How to Manually Disengage the Lock and Change from the Unlocked to the Locked State The lock is manually disengaged at the time the cylinder is shipped from the factory. Because the lock will not operate in this state, make sure to change it to the locked state before operation, after having adjusted the axial center for installation.
- Page 14 15. Design/Selection 1)Confirm the specifications. Products represented in this catalog are designed only for use in compressed air systems (including vacuum). Do not operate at pressures, temperatures, etc., beyond the range of specifications, as this can cause damage or malfunction.(Refer to the specifications.) We do not guarantee against any damage if the product is used outside of the specification range.
- Page 15 14)When a cylinder is used in a clamping, suspending, or lifting mechanism There is a danger of workpieces dropping if there is a decrease of thrust due to a drop in circuit pressure caused by a power outage, etc. Therefore, safety equipment should be installed to prevent damage to machinery and/or human injury.
- Page 16 ②When kinetic energy acts upon the cylinder in a locked state, such as when effecting an intermediate stop, there are constraints in terms of the allowable kinetic energy. Therefore, refer to the allowable kinetic energy of the respective series. Furthermore, during locking, the mechanism must sustain the thrust of the cylinder itself, in addition to absorbing the kinetic energy.
- Page 17 1)Operation manual Install the products and operate them only after reading the operation manual carefully and understanding its contents. Also, keep the manual where it can be referred to as necessary. 2)Ensure sufficient space for maintenance activities. When installing the products, allow access for maintenance and inspection. 3)Tighten threads with the proper tightening torque.
- Page 18 15)Mount in locations where maintenance will be easy. Ensure enough clearance around the cylinder to allow for unobstructed maintenance and inspection work. 16)Do not adjust the rod stroke by moving the rear plates, as doing so will cause the rear plates to come into direct contact with the guide body or the bracket mounting bolt.
- Page 19 20. Air Supply 1)Type of fluids Be sure to use compressed air for the fluid. 2)When there is a large amount of drainage Compressed air containing a large amount of drainage can cause the malfunction of pneumatic equipment. An air dryer or water separator should be installed upstream from filters. 3)Drain flushing basis, the bowl will overflow and allow the condensation to enter the compressed air lines.
- Page 20 6)When using auto switches, do not operate in an environment with strong magnetic fields. 7)A decrease in the base oil of grease may be accelerated by the properties of the compressed air used in pneumatic equipment, the external environment, operating conditions, etc., and the resulting drop in lubricating performance may have an effect on the equipment’s service life.
- Page 21 Causes Nonconformity Countermeasure Wrong piping of the cylinder. Eliminate the cause other than of the lock. Speed controller is fully closed. Too large load. No air pressure in the lock. Insure 0.3MPa or more pressure. Lock is not released Signal is not sent to the lock solenoid valve. Check up wiring and send the signal.
- Page 22 24. Construction: With Rear Plate ー 17 ー...
- Page 23 25-1. Auto Switch Proper Mounting Position (Detection at Stroke End) and Mounting Height * ( ): Values for long stroke Note) Adjust the auto switch after confirming the operating conditions in the actual setting. ー 18 ー...
- Page 24 25-2. Minimum Stroke for Auto Switch Mounting n: Number of auto switches (mm) Note) Mounting of auto switches 25-3. Operating Range Since this is a guideline including hysteresis, not meant to be guaranteed. (assuming approximately ±30% dispersion) There may be the case it will vary substantially depending on the ambient environment. ー...
- Page 25 25-4. Auto Switch Mounting Bracket/Part No. Note 1) Since the switch bracket (made from nylon) are affected in an environment where alcohol, chloroform, methylamines, hydrochloric acid or sulfuric acid is splashed over, so it cannot be used. Please consult SMC regarding other chemicals. Note 2) When mounting a D-M9 A(V) type auto switch, if the switch bracket is mounted on the indicator light, it may damage the auto switch.
- Page 26 Revision history 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 © SMC Corporation All Rights Reserved...
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