Measuring instruments | Sensors | Servohydraulics
Hydrotechnik GmbH | Schneider – Bad Kreuznach
We sell and present the products of the servohydraulics section of the German company Jos. Schneider Optische Werke GmbH. Sales also include putting the valves into operation with optimized settings.
Schneider Bad Kreuznach GmbH is not only synonymous with excellent optics but also for servohydraulics, which, like the optics, require precision in the production of mechanical components. We supply our customers with servo-valves for the most demanding requirements. We deal complexly with orders starting with the installation, electrical part and setting of parameters.
In addition to the standard program, we also supply tailored valves to applications. For example, with a defined characteristic, with two-edged, double-edged pistons or high-pressure valves.
They are applied in applications at a flow rate of 20 l / min and a pressure of 315 bar. They are used as pilot valves of the substation servo-valves.
Schneider-Servoventiles with the pull rod are the reliable heart of electro-hydraulic systems thanks to their simple design and therefore easy maintenance, oil resistance and high dynamics.
Schneider servo-valves are driven by a torque motor in an oil bath. The torque motor controls the valve piston, which hydraulically drives the master valve piston in a two-stage variant. The valve is more compact and more durable than the nozzle servo.
● No nozzles – there is no risk of clogging and sudden dysfunction
● The disfunction of the valve can be deduced by the gradual increase of the leakage
● Easy replacement of wear parts of valves
● Adjust the valve center using the Allen key
For applications with flow rates from 20 to 700 l / min, we offer two- and three-stage servo valves. The advantage of multi-stage valves is the ability to use torque motor control with lower electrical power. As a pilot valve, a servo valve is used with a pull rod.
● pressures from 0 to 315 barů● and from 5 to 400bar● Switch speed of 3 msec
Suitable for applications requiring high precision and dynamic pressure control. We offer five variants of the control range as standard.
● Max. flow 10 l/min
● Pressure control range 1-700 bar
This servo valve is driven by a high-performance linear motor, which enables volume flows of up to 40 l/min in a single-stage variant. It is equipped with Onboard electronics with feedback that can be configured via the USB interface.
● small leakage
● Lower requirements for oil clarity
● Excellent accuracy static and dynamic
● Direct replacement for valve series D633 from Moog
This is universal pulse width card for servovalves to max. 2A current limit.
● Control signal possible change by DIP switcher
● Zero point possible to set via P1 potentiometer
● Max. output current possible set by P3 potentiometer from 100 to 1000mA. We also have pecial variants f.e. +/-100mA or up to 2A.
● Ditheraplitude and Ditherfrequency also possible to set via P2 and P4 potentiometer.
Servovalves NG6, NG10
Servovalves NG25
Pressure regulators
Two-stage servo valves up to 1000 l / min
Valves with drawbar
Electropneumatic servo valves
Poppet valve for level monitoring
Analog controllers
Digital controller
Signal converter
Connection and flush plates
Quick-closing servo cylinder
Overview of Servovalves
Applications
Electronics overview
Quick-Acting Cylinder
Servocylinder with onboard electronics and position sensor
Accessories
Exelente linearity
Oil cleanliness reduced
Equivalent to D633 - D634
We develop and produce customized servo drives. The drive consists of servo valve and servo cylinder with a nearly frictionless seal and hydrostatic bearing. Our products are used in power plants, chemical plants, test rooms, water treatment plants, etc.
● Servo cylinders
● Servo rotary actuators
● servo pressure amplifier
● Control valves for vapors, process media, etc.
