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VALVE ACTUATORS – HYRAV ROTARY ACTUATOR

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Rotary Actuators – HyRAV Rotary Actuator

HyRAV® – more powerful, compact, safer  and tailored perfectly to your demands The hydraulic valve actuators HyRAV of Eckart, form a full series of double-acting actuators or spring return actuators according to the principle of helical gears. The compact and concentric design of the valve has proven to be excellent in practice and provides the customer with space savings as well as reliability. Moreover, the HyRAV series can be applied in the most severe conditions, i.e. from high vibrations to severe environmental locations, and further, provides a powerful, safe  solution for automation of valves. Additionally, the series is easily adapted to all types of valves, what is a result of the generous design of the hollow shaft and adaptable flange types.

Advantages at a Glance:

  • 12 drive sizes with torques up to 250,000 Nm at 210 bar
  • Small dimensions, slim and compact style
  • Smallest footprint to torque ratio
  • By concentric design are no radial forces transmitted to the valve
  • Optimum cushioning protects the valve and actuator
  • Easy installation and adjustment to each valve
  • Maintenance free, no lubrication required
  • Suitable for on/off, control and failsafe operation
  • High repeat accuracy and very simple control of the flow rates
  • Extremely trip possible (eg. 90° in 0.2 sec.)
  • Robust against extreme environmental conditions
  • Durable against vibrations

Eckart is a supplier and valve rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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HYDRAULIC ROTARY ACTUATORS – E1

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Hydraulic Rotary Actuators – E1

The E1 rotary actuator is Eckart’s entry-level actuator and is the successor to the popular SM1 series. The E1 works well with low-pressure hydraulic systems with typical pressure ratings of 580 psi (40 bar) – 1,450 psi (100 bar). The E1 rotary actuator functions according to the “helical gear” principle and, due to its compact design, only requires a minimum amount of space while delivering high performance and flexibility.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type of product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Hydraulic Rotary-Linear Actuator Standard Features:

  • Pressure rating at 1,450 psi (100 bar)
  • Standard rotation: 90°/180°/270°/360°
  • 5 models of pistons Ø 40 – 125 mm
  • Adjustable “zero” or home position
  • Wear resistant slide surfaces
  • 2-Point Bearing

Hydraulic Rotary-Linear Actuator Optional Features:

  • End cushioning
  • Rotation adjustable by ±5°
  • Flange mounting
  • Foot mounting
  • Position encoder output
  • Drive shaft configurations, such as spline shaft, tooth hub, hollow shaft, key shaft, etc.
  • Custom configurations available

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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HYDRAULIC ROTARY ACTUATORS – E3

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Hydraulic Rotary Actuators – E3

The Eckart E3 is a hydraulic rotary actuator that has been especially designed for mobile applications; however, it is not limited to such applications. This rotary actuator functions according to the “helical gear” principle and, due to its compact design, only requires a minimum amount of space.

The Eckart E3 is identical in form to the products of its competitors, but has unique selling points which can offer considerable advantages: firstly, there is virtually no backlash; secondly, there is no play in the 4-point roller bearing; and thirdly, no compact seals which can be subjected to stress on both sides are used. Consequently, there is no more wobbling, such as on the work platform, when a lateral movement is made.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type of product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Hydraulic Rotary-Linear Actuator Standard Features:

  • Torque output to 31,800 in-lb (3,600 Nm)
  • Pressure rating at 3,000 psi (210 bar)
  • Standard rotation: 180°/360°
  • Wear resistant slide surfaces
  • 4-Point Bearing
  • Through-hole (i.e. for cable pass-through)

Hydraulic Rotary-Linear Actuator Optional Features:

  • Integrated valve block
  • Custom configurations available

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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HYDRAULIC ROTARY ACTUATORS – SM4

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Hydraulic Rotary Actuators – SM4

The Eckart SM4 rotary actuator is a heavy-duty and highly-customizable rotary actuator designed for the toughest and most-demanding applications.

Because of its torque, angle of rotation, pressure range, positioning accuracy, stability of position, type of attachment, and its dimensions, the Eckart SM4 rotary actuator can be used in a wide range of applications. Not only is the SM4 a compact and robust unit, but it is also wear-resistant and efficient. The SM4 can be configured with an industry-leading fine and controllable end cushioning curve. Additionally, the SM4 unit can be driven via “black and white” or with proportional, control, and servo valves. For the purpose of subsequent driving, the piston end-positions at the linear cylinder and at the rotary actuator can be scanned via electronic end-position acknowledgement mechanisms. Ultimately, with the SM4, you have a high-performing product that is both robust and compact, allowing for optimal adaptation depending on your specific requirements.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type of product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Hydraulic Rotary Actuator Standard Features:

  • Torque output to 750,000 in-lb (85,000 Nm)
  • Pressure rating at 3,625 psi (250 bar)
  • Standard rotation: 90°/180°/270°/360°
  • Externally adjustable end stop ± 5°
  • Wear resistant moving parts
  • Four-point contact bearing to withstand extreme radial and axial loads
  • Adjustable home position
  • Tight backlash of 20 angular minutes

Hydraulic Rotary Actuator Optional Features:

  • End cushioning including sophisticated damping curves
  • Tighter backlash as low as 5 angular minutes
  • Position indication through encoders or proximity switches
  • Drive shaft configurations, such as spline shaft, tooth hub, hollow shaft, key shaft, etc.

Hydraulic Rotary Actuator Custom Configurations Available:

  • Drive shaft
  • Drive shaft on both ends
  • Adjustable end position rotation
  • Rotation more than 360°
  • Reversed turning direction
  • Direction connection of valving
  • Operating pressure over 2,625 psi (250 bar)
  • Operating speed
  • Mounting flanges
  • Special housing and gear materials
  • Special paint
  • Sea and saltwater resistance

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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HYDRAULIC ROTARY ACTUATORS – HSE4 ROTARY-LINEAR ACTUATOR

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Hydraulic Rotary Actuators – HSE4 Rotary-Linear Actuator

The Eckart HSE4 rotary-linear actuator is a combination of a rotary actuator and a dual-action linear cylinder, allowing for full flexibility in a minimal amount of space. Consequently, both a rotary movement and a linear movement can be executed even when operated in an extremely small area. Additionally, since the rotary actuator and the linear cylinder are hydraulically-driven separately, any movement sequences can be selected: for example, rotating to the left and right, extending linearly, and retracting.

Furthermore, if both components are driven evenly, then both types of movement will be executed synchronously. The directional valve controls the movement of rod rotation and linear stroking. Because of its torque, angle of rotation, pressure range, positioning accuracy, stability of position, type of attachment, and its dimensions, the Eckart HSE4 rotary actuator can be used in a wide range of applications.

Common applications for the HSE4 include lifting and turning. Not only is the HSE4 a compact and robust unit, but it is also wear-resistant, efficient, and cushioning. Additionally, the HSE4 unit can be driven via “black and white” or with proportional, control, and servo valves. For the purpose of subsequent driving, the piston end-positions at the linear cylinder and at the rotary actuator can be scanned via electronic end-position acknowledgement mechanisms. Ultimately, with the HSE4, you have a high-performing product that is both robust and compact, allowing for optimal adaptation depending on your specific requirements.

Hydraulic Rotary-Linear Actuator Standard Features:

  • Operating pressure up to 1450 psi (100 bar)
  • Torques up to 266,000 in-lb (30,000 Nm)
  • Lifting power up to 850,000 N
  • 4 standard rotation angle 90°/180°/270°/360°
  • Angle adjustment ± 5°
  • Wear resistant sliding surfaces

Hydraulic Rotary-Linear Actuator Optional Features:

  • End cushioning
  • Locating pin on the end of the shaft
  • Switching elements for angular interrogation
  • Various shaft types, such as DIN5480 gear shaft, gear hub, hollow shaft
  • Special designs according to the request of the customer

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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CUSTOM ROTARY ACTUATORS

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Custom Rotary Actuators

With over 40 years of experience in the rotary actuator field, Eckart GmbH provides outstanding production quality provided by experienced specialists. Over the decades Eckart GmbH rotary actuator components have gained a firm foothold in automation and drive technology applications.

Through the constant developments made by Eckart GmbH engineers, and the use of high-quality materials, Eckart GmbH rotary actuator components provide durability and dependability. With a Eckart GmbH rotary actuator, you can profit from our experience.

Eckart GmbH is the leader in manufacturing Helical Spline Rotary Actuators. More than 70% of these actuators are custom-designed to meet specific customer needs. Tell us about your project and we will present you with a customized optimum solution.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type of product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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PNEUMATIC ROTARY ACTUATORS – PSM2

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Pneumatic Rotary Actuators – PSM2

The Eckart PSM2 pneumatic rotary actuator is a heavy-duty pneumatic rotary actuator. Additional advantages of the PSM2 include its wear-resistant sliding surfaces and adjustable drive shaft datum. Ultimately, because of its torque, angle of rotation, pressure range, positioning accuracy, stability of position, type of attachment, and dimensions, the Eckart PSM2 rotary actuator is highly adaptable. With the PSM2, you have a high-performance product that is robust but still compact, allowing for adaptations depending on your specific requirements.

Helical Spline Hydraulic Rotary Actuators:

Our rotary actuators are the helical spline design. This means, a piston and a helix, or sliding spline, work together to convert the linear motion of the piston into rotational motion. Composed of two moving parts and some form of housing, the sliding helical splined gear concept within the actuator is used in many applications where a rotary movement is required. Helical Spline Actuators function when the piston is axially displaced using hydraulic pressure causing simultaneous rotation of the piston. Standard amounts of rotation are 90°, 180°, and 360°; but are available generally up to 720° or more. Additional rotation is created by making the spline gears longer while maintaining the same diameter. The primary benefit to this type product compared to alternative designs such as linkages using hydraulic cylinders (linear actuators) is its compact design.

Hydraulic Rotary Actuator Standard Features:

  • Torque output to 690 in-lb (78 Nm)
  • Pressure rating at 87 psi (6 bar)
  • Operating pressure up to 145 psi (10 bar)
  • Standard Rotation – 90°/ 180° / 360°
  • Angle adjustment ± 5°
  • Wear resistant sliding surfaces

Hydraulic Rotary Actuator Optional Features:

  • Locating pin on the end of the shaft for cams or other control equipment
  • Proximity switches
  • Custom configurations available

Eckart is a supplier and rotary actuator manufacturer for various applications including construction, mechanical, marine, and industrial.

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PNEUMATIC ROTARY ACTUATORS – PHSE ROTARY-LINEAR ACTUATOR

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Pneumatic Rotary Actuators – PHSE Rotary-Linear Actuator

The Eckart PHSE pneumatic rotary-linear actuator is a combination of a rotary actuator and a dual-action linear cylinder. Consequently, with the PHSE, a rotary movement and a linear movement can be executed in an extremely small space, making this compact and robust actuator ideal for many applications. Since the rotary actuator and the linear cylinder are pneumatically-driven separately, any movement sequences can be selected, such as rotating to the left and right, linearly extending and retracting, etc. If both components are driven evenly, then both types of movement will be executed synchronously. For the purpose of subsequent driving, the piston end-positions at the linear cylinder and at the rotary actuator can be scanned via electronic end-position acknowledgement mechanisms. Furthermore, this actuator offers great precision for freely selectable motion sequences. Additional advantages of the PHSE include its wear-resistant sliding surfaces and adjustable drive shaft datum. Ultimately, because of its torque, angle of rotation, pressure range, positioning accuracy, stability of position, type of attachment, and dimensions, the Eckart PHSE rotary-linear actuator is highly adaptable. With the PHSE, you have a high-performance product that is robust but still compact, allowing for adaptations depending on your specific requirements.

Hydraulic Rotary-Linear Actuator Standard features:

  • Operating pressure up to 145 psi (10 bar)
  • Torques up to 690 in-lb (78 Nm)
  • Lifting power up to 7400 N
  • 3 standard rotation angle 90°/180°/360°
  • Angle adjustment ± 5°
  • Wear resistant sliding surfaces

Hydraulic Rotary-Linear Actuator Optional features:

  • Locating pin on the end of the shaft
  • Switching elements for angular interrogation
  • Special designs according to the request of the customer

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