EFE

EFE

EFE

Product catalog summary
Description
The Electromagnetic Brake-Clutch EFE is a compact and narrow unit designed for quick and reliable operation. It is suitable for installation on projecting shafts, such as those on electric motors, and does not require collector rings. The unit is self-centered using radial bearings, making it independent of the mechanical brake-clutch performance.

Service Versions
Only one service version is available, designed for dry conditions. The presence of oil or grease significantly reduces torque transmission.

Types
Only one construction type is available, suitable for connecting two shafts or mounting on a single shaft.

Operation
The unit operates by alternating between clutch (run) and brake (stop) functions. Both functions should not be engaged simultaneously.

Supply Voltage
Standard voltage is 24 V.D.C., with other voltages available upon request. Proper connection cards must be used.

Applications
Applicable for various machines, including packing, food industry, textile machines, and machine tools like lathes and milling machines.

Technical Specifications
  • Max. transmissible torque ranges from 1 to 60 Nm.
  • Max. revolutions per minute range from 1500 to 5000.
  • Power consumption ranges from 18 to 84 Watts.
  • Mass ranges from 1.75 to 52 kg.
  • Response time varies with standard and rapid excitation.

Clutch and Brake Performance
Clutch performance involves magnetizing the polar mass to engage the clutch ring, while brake performance involves drawing the brake ring to absorb energy during friction.

Installation Conditions
The unit can be installed on both vertical and horizontal shafts, ensuring no axial clearance and maintaining the specified air gap.
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Catalog excerpts

EFE-1

ELECTROMAGNETIC BRAKE-CLUTCH SINGULAR PLANE Whithout collector rings Type EFE Description The electromagnetic brake-clutch EFE is a very compact unit, extremely narrow, and providing a quick and reliable answer. Its small length makes it possible to place it on the end of projecting shafts, such as on electric motors, therefore it is an easy-to-install and reliable drive control unit. It is free from collector rings, keeping the electromagnetic unit self-centered by means of a set of self-protected radial bearings, in such a way that they make it independent from the performance of the mechanical brake-clutch unit. The same electromagnetic unit acts as a support for the rest of the unit, making up in itself a compact and self-supporting unit. Operation It must be driven alternatively, going from the clutch, –run–, function, to the brake, –stop–, function and vice versa. Both functions must not be connected at the same time, since, as they are opposed, the first one invalidates the second one. Supply voltage Standard voltage 24 V.D.C., other tensions on request. The connection must be carried out using the corresponding connection cards which are duly marked on the body of the unit. Service versions We manufacture only one service version: Version for working under dry conditions. The presence of oil, greases or similar products highly reduces the torque that can be transmitted. Types We manufacture only one version, that is: Applications For all types of packing and proportioning machines. Machines of any type for the food industry, wooden case nailers, graphic arts, machines for paint manufacturing, circular knitting machines, knitting frames, textile machines in general, machine tools, such as lathes, milling machines, etc. Construction 1, to be installed, indiscriminately, either for connecting two shafts, or to be mounted on a single shaft. ASSEMBLY EXAMPLES machine bedframe Exemple B: Transmission between two independent shafts, well aligned and without axial clearance. Exemple A: Pulley or pinion transmission, etc. with driven shaft. Electromagnetic, pneumatic brakes and clutches Mechanical safety brakes · Centrifugal brakes Flexible couplings · Torque limiters · Spec

 Open the catalog to page 1
EFE-2

ELECTROMAGNETIC BRAKE-CLUTCH TYPE EFE SINGULAR PLANE Without collector rings Type EFE Characteristics and Dimensions 1. Clutch coil 2. Ferodo-holding disc 3. Clutch armature 4. Elastic membrane 5. Brake coil 6. Brake armature 7. Elastic membrane 8. Armature support 9. Ball bearing 10. Central body 11-12. Ferodos 13. Fastening pin (2 a 180°) 14. Inductor core Clutch performance When we excite coil 1 with current, the polar mass 2 is magnetized and it draws the clutch ring 3, which grates on the aforementioned polar mass and the friction lining 12, giving rise to the transmission. When we interrupt...

 Open the catalog to page 2

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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.