EAS®-Sp/Sm/Zr

EAS®-Sp/Sm/Zr
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EAS®-Sp/Sm/Zr

Product catalog summary
Overview: The document provides comprehensive technical specifications and operational guidelines for EAS®-Sp, EAS®-Sm, and EAS®-Zr torque limiting clutches. These clutches are designed to protect machinery by limiting torque and preventing overloads.
Quality Management: Mayr® ensures product quality through rigorous inspections and certifications, including compliance with DIN EN ISO 9001:2015 and DIN EN ISO 14001 standards. Products undergo extensive testing to meet technical and reliability standards.
Product Specifications:
  • EAS®-Sp: Pneumatically controllable torque limiting clutches with a torque range of 4 to 2500 Nm, featuring synchronous re-engagement and backlash-free torque transmission.
  • EAS®-Sm/EAS®-Zr: Electromagnetically controllable clutches with a torque range of 6 to 375 Nm, offering electrical torque adjustment and quick re-engagement.
Technical Explanations: The document explains the functional principles of the clutches, including overload, switching, and control functions. It emphasizes maintaining constant air pressure for torque adjustment and provides guidelines for securing the clutch onto the shaft.
Installation and Usage: Installation examples are provided for different clutch types, emphasizing the importance of proper attachment of drive elements and the use of control units for optimal operation.
Control Units and Accessories: Specific control units are available for each clutch type, ensuring easy operation and integration into automated systems. Limit switches are included to detect overloads and disconnect the drive.
Applications: The clutches are suitable for various automated machines, including packaging, filling, printing, and materials handling equipment, offering protection and efficiency in changing operating conditions.
Technical Explanations: Detailed technical explanations of the EAS®-Sm/Zr control unit and clutch systems are provided, emphasizing the importance of maintaining compressed air quality according to ISO 8573-1, recommending a quality class of 4 or higher.
Installation Examples: Several installation examples demonstrate the versatility of the EAS®-Sp clutch in various applications such as conveyor systems and textile machines.
EAS®-Sm/Zr Control Unit Features: The control unit allows continuous adjustment of coil current and limit torque during operation, featuring overexcitation for higher torque and temperature monitoring.
Torque Adjustment and Transmission: Torque is adjusted via coil current, ensuring consistent torque transmission unaffected by voltage fluctuations or coil temperature changes.
Technical Data and Specifications: Comprehensive technical data for different sizes of the EAS®-Sm/Zr clutches are provided, including limit torque, maximum speed, electrical power, and dimensions.
General Installation Guidelines: Guidelines for installing the EAS®-Sm/Zr clutches are provided, including securing the clutch onto the shaft and attaching friction support.
Limit Switch Installation: Instructions for installing limit switches on the EAS®-Sm/Zr clutches are included, highlighting the importance of correct installation for proper monitoring of overload conditions.
Specifications: The document details the mechanical and electrical specifications of the clutch systems, including input voltage requirements, current consumption, and protection standards.
Installation and Setup: Installation instructions emphasize the importance of interference-free power connections and adherence to EMC directives.
Operational Modes: Two operational modes are described, emphasizing the importance of observing these modes to avoid malfunctions.
Control Unit Functions: The control units monitor clutch engagement and emit signals when set torque is exceeded, controlling pneumatic valves and equipped with temperature and short-circuit monitoring.
Safety and Maintenance: The document advises on the use of earth leakage circuit breakers to prevent unit failures and highlights the importance of temperature monitoring to avoid overheating.
Connection Examples: Various connection examples are provided for different control configurations, emphasizing the need for correct installation to ensure reliable operation.
Limit Switches: The document provides technical specifications and installation guidelines for mechanical and magnetic field-resistant limit switches used for monitoring mechanical movements and end positions.
Contact Information: Contact details for Mayr's representatives and offices worldwide are provided, including locations in Europe, Asia, North America, and Australia.
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Catalog excerpts

EAS®-Sp/Sm/Zr-1

your reliable partner EAS®-Sp EAS®-Sm/Zr

 Open the catalog to page 1
EAS®-Sp/Sm/Zr-2

your reliable partner Total Quality Management Page Summary of constructional designs EAS®-Sp / EAS®-Sm / EAS®-Zr 3 EAS®-Sp pneumatically controllable torque limiting clutches Torque range: 4 to 2500 Nm Data sheets • EAS®-Sp standard 6 • EAS®-Sp torsionally rigid 7 EAS®-Sm / EAS®-Zr electromagnetically controllable torque limiting clutches Torque range: 6 to 375 Nm Description 10 Data sheets • EAS®-Sm/EAS®-Zr standard 12 • EAS®-Sm/EAS®-Zr with cover 12 • EAS®-Sm/EAS®-Zr torsionally rigid 13 Limit switch installation 14 Electrical accessories EAS®-Sp control unit No longer available 16 EAS®-Sm...

 Open the catalog to page 2
EAS®-Sp/Sm/Zr-3

your reliable partner Your advantages when using electromagnetically or pneumatically controllable torque limiting clutches with switching function: ❒ The clutches precisely limit the torque to the value determined by the supply current or air pressure and reduce damage, costly repairs and downtimes in case of overload. ❒ The clutches are remotely controllable by using current or air pressure as actuating or regulating mediums and can be included in complex control systems: a decisive advantage for usage in automated machinery. ❒ During operation the transmittable torque can be exactly adapted...

 Open the catalog to page 3
EAS®-Sp/Sm/Zr-4

your reliable partner The cyclic, pneumatically switchable and controllable torque limiting clutch EAS®-Sp ❒ Simple attachment of the drive elements ❒ Low mass moment of inertia ❒ Long service life and maintenance free ❒ High switch-off accuracy ❒ Integrated mechanically protected limit switch Integrated limit switch • Extremely short switch-off times Connection for control unit • In case of overload, the limit switch detects the axial disengaging movement of the control element quickly and precisely. • Motionless compressed air supply • ON/OFF switching function, multi-start function • The limit...

 Open the catalog to page 4
EAS®-Sp/Sm/Zr-5

your reliable partner Application of the EAS®-Sp torque limiting clutch The backlash-free torque transmission: • In all kinds of automated machines • Balls in radially and axially arranged recesses on the hub and on the pressure flange. • With constantly changing operating conditions • The balls are pressed simultaneously into recesses of the hub and pressure flange, and therefore transmit the torques backlash-free in both rotational directions, also in case of reverse rotational direction. • With changing cycles and cycle speeds Use of the EAS®-Sp torque limiting clutch • In packaging machinery...

 Open the catalog to page 5
EAS®-Sp/Sm/Zr-6

O mayr your reliable partner Limit switch is included in the delivery. Technical Data The operating pressure of the clutch ranges between 1 and 6 bar; you can find the exact data in the diagram, page 8. We reserve the right to make dimensional and constructional alterations. 1) The speed for re-engagement or for synchronous switching operation depends on the mass to be accelerated and the load torque (see “Technical Explanations” page 8). 2) Size 5 not in stock 3) Mounting tolerance + 0.1 4) Without initiator guard bracket 5) Tolerance user-side H7 6) The position of the keyway to the mounting...

 Open the catalog to page 6
EAS®-Sp/Sm/Zr-7

your reliable partner EAS®-Sp Torsionally rigid Type 456.125.8 Sizes 0 to 5 Limit switch is included in the delivery. We reserve the right to make dimensional and constructional alterations. 1) The speed for re-engagement or for synchronous switching operation depends on the mass to be accelerated and the load torque (see “Technical Explanations” page 8). 2) Size 5 not in stock Technical Data The operating pressure of the clutch ranges between 1 and 6 bar; you can find the exact data in the diagram, page 8. Hub Keyway 61 Hub Keyway 61 AS Counterbore bore acc. DIN bore acc. DIN stator element-side...

 Open the catalog to page 7
EAS®-Sp/Sm/Zr-8

Technical Explanations Operating speeds The speeds mentioned on pages 6 and 7 are operating speeds which refer to the engaged condition of the clutch. The re-engagement speed of the EAS®-Sp clutches depends on the corresponding clutch size or mass moments of inertia of the flanged drive element. Re-engagement or connection of the clutch under load should not take place. Please contact our application engineers regarding your special application. Torque adjustment Adjusting and altering the torques can be accomplished by altering the air pressure. The torque capacity is proportional to the air...

 Open the catalog to page 8
EAS®-Sp/Sm/Zr-9

o mayr your reliable partner 1-pressure system 2-pressure system Compressed air characteristics The quality of the compressed air according to ISO 8573 -1 should have a quality class 4 or higher. maintenance unit pressure reducer operating pressure 3/2 directional magnetic valve quick-action ventilating valve (as close as possible to the clutch) clutch pressure cylinder pressure reducer 2-pressure system 3/2 directional magnetic valve 3/2 directional magnetic valve quick-action ventilating valve (as close as possible to the clutch) clutch pressure cylinder Installation examples EAS®-Sp clutch...

 Open the catalog to page 9
EAS®-Sp/Sm/Zr-10

your reliable partner The electromagnetically switchable and controllable control clutch EAS®-Sm/Zr ❒ Combined electromagnetic torque limiting clutch and electrically switchable clutch ❒ Controllable and adjustable ❒ Continuous torque adjustment possible during operation ❒ Synchronous switch-on and switch-off functions of drives in a low speed range (0 – 100 rpm) ❒ On application of several clutches, individual operation and control of different drives and shafts within one system are possible. ❒ Optimised drive control by means of the EAS®-Sm/Zr control units ❒ Also available as simple measuring...

 Open the catalog to page 10
EAS®-Sp/Sm/Zr-11

your reliable partner The cyclic, switchable and controllable torque limiting clutch EAS®-Sm The instantly operational, switchable and controllable EAS®-Zr control clutch • Engagement is guaranteed only at one specific point due to the phased mayr®-synchronous geometry of the mayr®precision rollers and roller detents. • Uniform and constant torque transmission due to precision manufacture of the roller detents. • Prompt readiness for operation of the machine and system after removal of the overload is guaranteed by using the EAS®-Zr. • The EAS®-Sm/Zr control unit takes over the clutch control,...

 Open the catalog to page 11

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.