LINEAR ACTUATORS HSA SERIES
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Made in Italy products 100% Made in SERVOMECH SpA Via Calari, 1 • 40011 Anzola dell’Emilia (BO) • Italy • T. +39.051.6501711 • sales@servomech.com LINEAR ACTUATORS HSA SERIES

© Copyright SERVOMECH This catalogue contents are under publisher copyright and may not be reproduced unless permission is agreed. Every care has been taken to ensure the accuracy of the information contained in this catalogue, but no liability can be accepted for any errors or omissions. The data shown in this catalog are in any case indicative and do not constitute any commitment. SERVOMECH reserves the right, at any time, to make changes at its discretion without notice.

1 / PRODUCT DESCRIPTION Servomech HSA electromechanical linear actuators are high performance products with high precision ball screw drive, 100% internal production made by Servomech. The main advantages they offer are: high linear speeds associated with high loads always under a constant position control; precise and accurate control of position, speed and force; high efficiency with low energy consumption; reduced installation costs. Ideal for replacing hydraulic cylinders in applications that require high linear speeds associated with high loads, precise and accurate control of...

/ Product overview The range of high performance Servomech electromechanical linear actuators is made upon 3 series, differentiated by design and input drive. HSA Series High-speed linear actuators • Rear hinged attachments • Gleason bevel gear • Ball screw drive • 6 sizes, load capacity from 5 kN to 150 kN • Ball screw from 0 25 mm to 0 80 mm • Integrated anti-turn device system « Lubrication with synthetic grease, lifelong lubricated gearbox • Fast and easy re-lubrication system of the ball nut with “homing” position • Linear speed up to 1 500 mm/s • Standard stroke length up to 1 000 mm...

1 / PRODUCT DESCRIPTION/ Size overview The electromechanical linear actuators HSA Series are available in 6 standard sizes, to cover a wide range of performances. SERVOMECH innovative solutions for high speed and long service life Pushrod guide with axial sliding bush in anti-friction material for high-speed use Tapered roller bearings back-to-back mounted for a stiff support of the ball screw Breather to compensate air flows and related pressure

ACTUATORS HSA SERIES / 22.1 / Technical data HSA Series SIZE m all screws with accuracy grade IT 3 or IT 5 available on demand (2) - Weight of the actuator without fixing accessories (3) - The value in brackets refers to the version with additional output shaft (see chap. 3.4) 8 Linear actuators HSA Series

2 / ACTUATORS HSA SERIES SIZE 1 all screws with accuracy grade IT 3 or IT 5 available on demand (2) - Weight of the actuator without fixing accessories (3) - The value in brackets refers to the version with additional output shaft (see chap. 3.4)

Ordering code stroke: STANDARD HEAD with threaded bore Ordering code: REAR BRACKET Ordering code: BALL JOINT Ordering code: Linear actua

2 / ACTUATORS HSA SERIES SIZE

3 / Construction features 3.1 / Mounting attachments orientation Ordering code: Ordering code: Ordering code: Ordering code:

3.3 / Input shaft SIZE 14 Linear actuators HSA Series

Solid shaft with key, standard diameter Ordering code:

Solid shaft with key, increased diameter Ordering code: Linear actuators

3 / CONSTRUCTION FEATURES 3.4 / Additional output shaft HSA actuators can be equipped with one or more additional output shafts. Available options are: • Code S: solid shaft with key, standard diameter • Code R: solid shaft with key, increased diameter The position of the shafts refers to the main input shaft and is expressed as an angle with a positive counterclockwise direction and with the actuator seen from above (rod end side). Additional output 180° 1. Shaft code 2. Shaft position ATTENTION: The rotational speed of the additional output shaft is always equal to the rotational speed of...

Ordering code: NOTE: in case of inclined or tilting mounting position, indicate the one among the positions shown that the closer it gets to working condition. Linear actuators HSA Series

Fe [N] = other external forces Ph [mm] = thread helix lead of the ball screw n = total efficiency of the actuator Ta [Nm] = friction torque of the actuator NOTE: the calculated value must not exceed the Max Input Torque limit Tmax reported in the technical tables (see Chapter 2.1 / Technical data HSA Series)

Ball screws life corresponds to the number of revolutions that the screw can perform with regard to its nut before any sign of fatigue appears on the material of screw, nut and rolling elements. The nominal ball screw life (L10) is calculated with the following formula: = ball screw dynamic load = equivalent dynamic load = shock factor load without shocks load with light shocks load with medium shocks load with heavy shocks The result of the calculation corresponds to the number of revolutions of the screw with regard to the nut, reached by the 90 % of the ball screws, apparently identical,...

4 / SIZING AND SELECTION - BALL SCREW SIZING AND SERVICE LIFE HSA 10 HSA 10

SIZING AND SELECTION - BALL SCREW SIZING AND SERVICE LIFE / 4 Linear actuators HSA Series

4 / SIZING AND SELECTION - BALL SCREW SIZING AND SERVICE LIFE HSA 150 HSA 150

In case of push load (static or dynamic) applied on the actuator, the buckling resistance of the screw must be checked. The maximum compression load allowed on the actuator is determined by: d0 [mm] = ball screw nominal diameter x = calculation coefficient Dw [mm] = balls diameter (see below table) C [mm] = linear travel (stroke) sf = safety factor NOTE: value resulting from calculation must not (see Chapter 2.1 / Technical data HSA Series). exceed the max force value as for technical data 24 Linear actuators HSA Series

4 / SIZING AND SELECTION4.4 / Critical speed limit The rotating speed of the screw generates the rod linear movement. Therefore, the linear speed of the actuator, is limited by the following factors: A - External factors (length, diameter and type B - Internal factors (balls material, geometry and material of screw end supports). of all the recirculation elements). Once the respective values have been established according to these two criteria, the lower of the two values is adopted as the maximum speed of the system. A - Limits due to external factors In order to ensure a proper working...