Rotary actuator SM4
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Rotary actuator SM4 Hydraulic / 250 bar

from 20 bar economically applicable - through precise combined helical gears and low friction seals, is the SM4 already from 20 bar economically applicable - high performance in a very compact unit resulting in space and cost savings - increased safety margin - savings on accessories as only few applications will require pressure reducing valves to protect the SM4 low hydraulic axial load on drive shaft through small differential - less load on the four-point bearing, freeing it for more important tasks - extending the service life of the rotary actuator adjustable drive shaft datum - if...

highly perfected end cushioning for absorption of kinetic energy - negating the need for expensive proportional or servo controls with virtually identical characteristics …over time - short delivery times through flexible storage - individual solutions for your product - quality assurance according to DIN EN ISO 9001 externally adjustable end stop (standard) large-area press-fit joint - assuring positive power/torque transmission even at peak load conditions - the end angle can be re-adjusted at any time by ± 5° - in conjunction with the adjustable drive shaft datum, it is therefore possible...

Modular down to the tiniest details … [ Extras which give flexibility ] valve Successful companies gain competitive advantage, both for themselves and their customers, through innovative ideas and technologies. On the basis of SM4, we have achieved special designs which are tailored precisely to your needs. valve plate Please feel free to call us - our engineers and technicians will be pleased to help you. basic model g) shaft with keys hollow shaft with keyways with foot h) splined shaft hollow shaft with gear hub or with multiple-splined hub hollow shaft with square end flange - flattened...

angle sensor, potentiometer with coupling and mounted housing stop valve plate locating pin smooth cushioning plate all other types of thread possible standard connection bores all other types of thread possible locating pin with thread clamping ring with proximity switch clamping ring with mechanical switch angular adjustment, e.g. from 90° to 180° agraduated angular adjustment, e.g. from 0° to 90° with second flange on base proximity switch pressure resistant (to approx. 25°) pressure absorber measuring connection bleed valve with hose liner locking screw with additional radial bearing,...

[ Drive shaft datum ] The rotary actuator SM4 is used for rotating or turning useful loads. As in a hydraulic cylinder the piston K (fig.-2) is moved in a linear motion between the two mechanical end positions E1 and E2 by means of hydraulic power. The drive shaft datum can be adjusted within the angular minute range. After loosening the screws Z (1/2 turn), any drive shaft or key position can be adjusted. Once the required adjustment has been made, tighten the screws Z again as instructed (see manual). The drive shaft datum is adjusted at the factory as shown in fig.- 2, with the piston K...

[ Shaft rotation ] From view F, the drive shaft W will rotate anti-clockwise (arrow A) when pressure is applied to port A1. A different direction of rotation is available as a special feature. The hydraulic fluid used in the rotary actuator does not exceed the pollution classification 19/15 in accordance with ISO 4406. Therefore, a filter setting of < 25 µm should be installed in the pressure line. With hermetically sealed containers a return filter should suffice. With open containers a pressure filter must be installed in the compressed air line. The maintenance intervals described above should...

[ ZN - Gear hub DIN 5480 (hollow shaft) ] The locating pin SZ (fig. 3) is intended for the fitting of cams Z5 or other control equipment. It simply screws or is glued into the tapping provided at the back end of the shaft. It can be supplied at a later stage without reconstruction of the rotary actuator. The locating pin should not be used for torque transmission or for limiting the angle of rotation. Rotary actuators with a gear hub profile as per DIN 5480 shorten the structural length of the total construction, or are used for if the customer’s counterpart can not be provided with a hub. The...

[ Z4 - Longe-range adjustable end stop ] The angle of rotation can be adjusted individually with this option (fig. 4), both over its total range of rotation and over a partial range (e.g. total angle 270Њ, desired partial adjustment of 180Њ to 270Њ). To this end, the adjusting insert RE is simply screwed inwards or outwards to give the desired angle of rotation. The shaft goes all the way through, allowing control equipment to be fitted. Adjustment is only possible in the unpressurised state. The total length of the rotary actuator is extended by this option, depending on the range of...

Eckart end cushioning is designed to meet the toughest requirements in modern hydraulics. On the basis of continuous research and development as well as close co-operation with our customers, we can offer you state-of-the-art end cushioning. End cushioning is aimed at dissipating and/or decelerating the rotary movement before the final end stop. single-stage end cushioning time [s] Eckart end cushioning time [s] figure-9 The diagram shows one of the advantages of Eckart end cushioning over conventional cushioning with single-stage control ● You do not need to include any expensive...

Technical data and information [ Technical data ] [ Important technical information ] - Adherence to the data provided here is a precondition for trouble-free operation. - The regulations of the Technical Supervision, Social Insurance Against Occupational Hazards and the respective environmental regulations etc. must be observed. - Plant driven by a rotary actuator must be laid out in such a manner that in case of technical or human failure there is no danger of injury or death. - We reserve the right to alter or improve design specifications without prior notice. [ Ordering code ]...