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.
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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.
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:
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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 Actuator Standard Features:
Torque output up 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 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.
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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.
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.
Like all Eckart hydraulic rotary actuators, the SM4 is designed with helical spline technology. The actuator operates with a piston and a helical or sliding spline mechanism, which work in tandem to transform the piston’s linear motion into rotational movement.
High torque in a compact profile
Helical spline actuators deliver impressive torque within a compact construction, making them ideal for applications where space is limited.
Less risk of contamination and physical damage
Protective housing keeps all moving parts safe from debris and moisture, ensuring consistent operation in demanding environments, especially for mining applications.
Low maintenance and wear-resistant moving parts
All internal components are fully immersed in oil ensuring preventative wear.
Extended-period nitriding ensures a long service life of the rotary actuator.
Helical spline rotary actuators offer safer alternatives to linkages for the operator, since there are no exposed parts.
Standard Rotations:
Standard rotations are 90°, 180°, 270°,and 360°. Other rotations can be supplied on request by using the model with the next standard rotation up and limiting the stroke of the piston in accordance. Also available are special models with rotations in excess of 360°. 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.
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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:
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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.
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
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.
The IC Series can be used as a drop-in replacement to Helac’s rotary actuators. This series offers a cost-effective solution with faster lead times (22-26 weeks) or 10-14 weeks with optional expedited shipping. Some units readily in stock.
The IC20 series rotary actuator has a max drive torque of 4,420 – 37,170 in-lbs at 3,045 psi. Foot mount to single or double flange, cantilever or straddle mount
Hydraulic Press Products — Parallelism Control System
The Hylatechnik parallel leveling device preserves the life of presses and machine tools, increasing the economic return on your equipment and the quality of the work piece.
Often press manufacturers and tool makers are asked to design a press or die with severe off-center loads. The off-center load forces the slide to tilt placing high side thrust loads on the slide, gibs and frame. The result is abnormal wear of gib and slide liners, improper die alignment, reduced die life and lower part quality.
The Hylatechnik Parallelism Equalizer consists of four cylinders set beneath the ram and connected to a specially designed metering system. The instant the cylinders come in contact with the ram, oil in the cylinder flows to the metering system. The metering system prevents any of the cylinders from moving ahead of the rest, assuring parallelism.
The Hylatechnik Parallelism Equalizer permits the placement of tools with off-center load conditions without twisting the ram to non-acceptable conditions. Press and tool life is increased and common use of cutting, drawing, trimming and contouring tools become possible.
Purpose:
Corrects off-center loads in hydraulic presses
To prevent press ram from taking out of parallel positions, even with severe off-center loads
To permit the simultaneous use of several dies on the press for better machine utilization
Particularly suitable for use with progressive tooling
Results:
Parallelism of ram is accurately maintained, even with severe off-center loads
Press and tooling is protected
Economic utilization of machine is increased
Quality of work piece is increased
Hylatechnik is a supplier and hydraulic press product manufacturer for various applications including construction, mechanical, technological, and industrial.
Have you ever been in a metal stamping facility and heard something that sounds like a train running into the building every time the press cycled? If you have, what you are hearing is an event called reverse tonnage and it is tearing up the press. In this short explanation, we will attempt to explain Reverse Tonnage also known as Snap-Through in a metal stamping press. Reverse tonnage is the undesirable results of cutting, blanking, and perforating operations. In the stamping process, the moment the punch meets the material, the press frame begins to deflect until the press has built up enough force to exceed the shear strength of the material and the punch breaks through. When this happens the press frame will release the stored-up energy and snap back past its original position or resting position into a compression load.
The press frame and components that are designed to function in a tension load are now in a compression load condition and all of this will occur in less than 20 milliseconds. At the instant of breakthrough during blanking, the press and dies are subjected to severe stress. This compression load condition on the press frame is called reverse tonnage and it can damage your press.
The conventional industry standard is to have presses designed to accept a reverse tonnage load that does not exceed 10% of the maximum forward capacity of the press. In other words, the maximum allowable reverse load for a 600-ton press is 60 tons. So, anything over 60 tons, you risk damaging your press.
So, what happens when we have too much reverse tonnage?
Fatigue failure of press components — especially in the slide connection area, but also main frame parts. Sooner or later, this could result in damage to bearings, seals, gibwayes, etc.
Premature wear of punches and die components
Foundation issue along with a high noise level
Components like bolts, air, and hydraulic lines become loose causing unnecessary leakage
Electrical malfunctions
High snap-through affects the operator and could cause fatigue, foot, ankles, knees, hips, and even back problems
There are several ways to reduce reverse tonnage in a blanking operation:
Change raw material to a softer, thinner type if the job allows for it
Maintain punches to limit the applied tonnage or step the punches
Reducing the press speed helps, but it increases the production time
Place the tooling in higher tonnage capacity presses
Many times, these reduction methods are not practical or may only minimally reduce the reverse tonnage on these heavy-hitting jobs. However, the hydraulic Shock Damper is the solution. Hylatechnik developed the hydraulic Shock Damper over 45 years ago and stampers from around the world have been protecting their equipment by using them.
Hylatechnik Shock Dampers are designed to protect the press and tooling from snap-through loads. The Hylatechnik dampers will reduce or eliminate reverse loads, floor vibration, noise, and will increase tool life as well as forward tonnage in many applications.
Applications include hydraulic presses, mechanical presses, and press breaks. The shock dampers are not limited to the press size. They can be used on the largest of machines.
Additional benefits of the Hylatechnik Shock Damper are:
Increase press speed
Use full press capacity
Reduction in foundation vibration
Reports have shown a reduction in floor vibration of nearly 40%
Reduction in noise levels
Hylatechnik Shock Damper Demo — See them in action
Real-Life Customer Testimonials:
Reese Products: 25% Reverse load tonnage reduced to 0.01% on a 400-ton press:
As part of the demonstration, Press Automation installed Hylatechnik Shock Dampers onto a 400-ton Niagara press. Before the Dampers were added, the press was seeing a reverse load of 100 tons or 25% tonnage, significantly exceeding the recommended 10% of the rated forward load in a reverse load situation. By placing the Hylatechnik Dampers on the press, the reverse load was reduced to 0.01% tonnage or 1.2 tons. There was also a substantial reduction in the noise around the press with the Dampers in place. FYI: 100 tons ÷ 400 ton press = 25%
Bobcat: 1700-ton press shows a drastic difference in vibration with Shock Dampers:
Shock Dampers tested on Bobcat’s 1700-ton press resulted in “a drastic difference in vibration felt and ‘crack’ heard. With the dampers, the press stroked almost as smooth as if the die was stroked empty,” Dave Owens, Manufacturing Engineer in a test report for Bobcat.
A customer contacted us for assistance in reducing floor vibration and reverse loads on their 1600-ton Version Press. The press was being used for a heavy blanking application, which caused severe floor vibration and high reverse loads. The vibration was so intense that it caused a shock that traveled to neighbors across the street, prompting them to contact local authorities and shut down the stamping facility’s production at 11:00 P.M. We were called to do a demonstration of the Hylatechnik Shock Dampers, along with an engineering firm, to document the foundation vibration caused by each press stroke. The results were remarkable and using the Hylatechnik Shock Damper System reduced the floor vibration by 40%. The Shock Dampers also reduced the reverse load within the press manufacturer’s acceptable range. In the assessment provided from HGC Engineering, Brian Howe, MEng, MBA, PEng wrote that the Shock Dampers “provided an improvement in vibration levels occurring on the press frame and transmitted to the surrounding ground.”
According to AIDA Americas research, they found that the reverse load can be reduced by 83%-99% in some of their presses by using the Hylatechnik Shock Damper.
To see the positive effects of the Hylatechnik Shock Damper on your press call the pros at IC-Fluid Power to arrange a demonstration. We can be reached at (419) 661-8811 or us@icfluid.com.
Hylatechnik is a supplier and hydraulic press product manufacturer for various applications including construction, mechanical, technological, and industrial.
