Actuation of the S-valve of a concrete pump

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    In the structure of S-valve unit they are usually mounted on the main bearing housing and link the two shifting cylinders of the S-valve drive. They allow at the same time a relatively rigid and stable transfer of force to the swing lever. The slots made in the mounting brackets actuators are deposited bearing bushes in which they work cylinders bolts. On the support brackets there are the sockets machined, which are used for mounting …

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  • Schwing S41SX Brochure - Schwing Concrete Pump Repair

    used on more concrete pumps than any other style. With low unfolding height, fast set-up and easy clean-out it is the multi-purpose boom for the majority of applications. Under all circumstances, the S 41 SX can finish the pour thanks to manual boom controls located conveniently on the side of the pump. All-hydraulic actuation provides proportional

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  • Hydraulic actuator-control arrangement for concrete pump

    In addition the housing sleeves 16 and 17 have passages 25 and 26 opening into end regions or compartments 27 and 28 of the chamber 18 and connectable via a two-position reversing valve V (FIG. 4 only) to a respective low-pressure pump P' and sump S'. The actuator cylinder 3 has a cylindrically tubular housing 41 centered on the axis A and two

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  • Piston speed modulation for a concrete pump - ITALIANA

    Jul 08, 1999 · Generally, the pumping unit consists of a pair of concrete pumping cylinders, alternatively operated by a pair of hydraulic cylinders, and of a special rocking valve (S-valve) which connects the concrete transport and delivery duct to one of the two pumping cylinders, while the other cylinder draws concrete from the hopper. The rocking S-valve is alternatively moved by a second pair of hydraulic …

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  • Influence of Engine Load on Concrete Pump Operating

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  • Hydraulic Concrete Pump - Hydraulic Pump for Concrete Mixer

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  • Concrete Pump S Valve - TAICHANG MACHINERY COMPANY

    All kinds of concrete pump spare parts for are available for us. CONCRETE PUMP SPARE PARTS – S valve S tube part is welded by ST52 steel plate, which is formed by integral process toreduce the resistance of concrete flow. Hard face layer High anti-wear welding electrode to hardface inside wall of the s tube with a thickness ≥3.5mm, HRA ≥60.

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  • Guide to Placing Concrete by Pumping Methods Guide to

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  • Dynamic analysis of hydraulic systems - Examples

    At t ≈ 0.006 s when р 5 reaches value 3.5 MPa, thus р 5 ≈ 0.33 р 9, the valve of the pilot operated check valve (z 8 changes from 0 up to 5 mm) opens, pressure of a liquid in a cavity before valve р 9 falls, and pressure in a rod cavity by virtue of inertia of the reduced mass of the hydraulic cylinder continues to grow (speed v 12 in

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