Borelli 3 daNm Electromagnetic Clutch – °30900 Series

Description

The Borelli 3 daNm Electromagnetic Clutch – °30900 Series is an essential reversible coupling solution for power transmission in advanced hydraulic and mechanical systems. This technical component enables immediate engagement and disengagement of the transmission through electrical control. The system offers extremely short response times, with an engagement time of 25 ms and a disengagement time of just 40 ms. The device design requires a minimum safety interval of 20 seconds between two consecutive engagements. The maximum supported rotational speed for reliable operation is 5000 rpm.

Construction and Mechanical Features

The device features a robust, compact structure with a total weight of 3 kg. Its design incorporates an electromagnetic clutch pulley (spare part code 4003/125BP) with a Section A groove. The transmission shaft (AC30900) is supported by a high-efficiency SKF 3206 bearing (503206) and ensures stable mechanical coupling through a DIN 5482-A 25×22 spline profile. The sealing system includes a dedicated 30x40x7 oil seal (303040) and specific O-rings (403225 D.60 and 402100) to prevent contamination. All structural connections are secured using standardized fasteners (UNI 5931 and EN 24017 screws). Electrical power is supplied through a specially sized 2×2.5 cable.

Torque Performance and Dynamic Curves

The system’s torque performance varies directly with the applied rotational speed. The clutch delivers a maximum static torque of 4.5 daNm and a nominal torque of 3.0 daNm. Under dynamic operating conditions, torque values follow specific performance curves: 3.2 daNm at 500 rpm, 2.8 daNm at 1000 rpm, 1.7 daNm at 1500 rpm, 1.4 daNm at 2000 rpm, 1.2 daNm at 2500 rpm, and finally 0.9 daNm at 3000 rpm.

Electrical Specifications and Series Variants

The range includes two main variants, distinguished by their DC supply voltage: the °30900-1 Series operating at 12 Volt and the °30900-2 Series operating at 24 Volt. Electrical consumption naturally varies with temperature. At 20°C, the 12 V model has a resistance of 5.7 Ω, draws 2.1 A, and consumes 25.2 W. At 120°C, these values change to 7.9 Ω, 1.6 A, and 18 W, with a 20% reduction in performance. Similarly, at 20°C, the 24 V model has a resistance of 21.7 Ω, draws 1.1 A, and consumes 26.5 W. At 120°C, these values change to 30.7 Ω, 0.8 A, and 19 W, respectively.

Technical Summary Table of the Main Specifications of the Borelli 3 daNm Electromagnetic Clutch – °30900 Series

Product Codes