servo driven hydraulic pump for sale

Baumüller supplies innovative and optimized drive solutions for all sectors through years of intensive cooperation with mechanical engineers. Due to the integrated control unit in the converter, Baumüller servo pumps can easily be connected to your machine control systems. In the process, they reduce the energy consumption of your drive system significantly and also allow for shorter cycle times, greater accuracy as well as lower noise development. See for yourself and rely on the flexibility and power of innovation of the experts from Baumüller.

Servo pump drives for the hydraulic supply consist of a fixed displacement pump driven by a servo motor. The flow rate and pressure can be controlled precisely by highly dynamic changing of the motor speed. If neither flow rate nor pressure are required, the motor stops and does not consume any energy.

These production steps are highly differentiated, meaning that within one process step the injection molding machine has widely fluctuating output requirements. Closing and injection sequences require large quantities of hydraulic oil and a high volumetric flow. Cooling times, on the other hand, require no or just minimal output.

The difference in energy consumption can be clearly seen in the typical hydraulic system shown in the diagram. The high energy efficiency of the servo-hydraulic solution arises from a needs-specific pump output. When the machine is at rest, e.g. during cooling, then the motors will also be at rest and will consume no energy.

An additional example is presses. The cycle in the figure is divided into three partial cycles: lose press (compacting the material), dwell time, press back and handling. The comparison of energy consumption between the three different systems shows that the solution with a servo pump in the individual partial cycles has a significantly lower power input and thus has a significantly lower energy consumption overall. Unlike conventional hydraulic systems, only the energy that is actually needed is used, while in the classic systems the losses are higher due to the constant revolution of the standard motor in rest phases, such as when stopped (see figure).

Injection molding machines and presses are not the only applications for servo-motor pumps. The use of a servo-hydraulic system is a sensible option wherever phases with high power requirements alternate with pause times in the machine cycle, such as in stamping and bending machines.

The advantages of hydraulic power transfer and electric power setting using servo technology combined, as an alternative to hydraulic pressure and volumetric flow control, yields an energy-efficient and cost-effective solution in the form of a dynamically controllable servo pump.

As a special feature, Baumüller offers three different options for the connection between the pump and the motor. In the Standard Line, the attachment is made using the conventional solution of coupling and pump support. This tried-and-tested option can be achieved with a standard motor shaft and motor flange and is flexible due to the separate components. The second development stage, the Advanced Line, designates the direct attachment of the pump on the motor via internal toothing. Here, there is no need for a pump support and coupling, so the system is more compact and robust. Omitting the pump support as a resonating body also reduces the noise impact.

In the third stage, the Performance Line, the hydraulic fluid is additionally used for intelligent circulating oil lubrication. For this purpose, connections were added not only to the motor but also to the fixed displacement pump, allowing the leakage flow of the pump to be used for the permanent lubrication of the toothing. This eliminates an otherwise necessary grease lubrication of the internal toothing, which would be due every 3,000 operating hours on average, also rendering the system particularly robust. Baumüller thus offers a patent-pending solution, which leads to significantly reduced service costs in operation.

Permanent magnet synchronous motors are used as motors in servo-hydraulic systems. The main criterion for selecting servo motors is good performance in terms of dynamics and overload capacity.

Baumüller offers various motor series for use in servo-hydraulic systems, from the dynamic three-phase current servo motor DSD2 to the three-phase current synchronous motor DS2. All motors are available in an air-cooled and a water-cooled version. Size 45–132 servo motors are also available in an oil-cooled form. This is an advantage in the hydraulic system, since the oil is available in the machine anyway. Another advantage is that liquid-cooled motors have a higher power density and can therefore be dimensioned smaller.

Direct attachment is available for the Advanced and Performance Line models. The following motor-pump combinations are possible. The Standard line, attachment via coupling and pump support is possible with all the motors listed here.

Servo hydraulic pumps provide hydraulic system with sufficient pressure to maintain the appropriate pressure of the pump. These pumps work flexibilityibly as they are used in servo motorsports.

Servo hydraulic pumps work with a series of piston.s have a rotating pressure and switch the pressure of the rotating hydraulic pumps, depending on the usage of the pump. They can be used for robot vacuum pumps, robot vacuum hydraulic pumps, and rotary hydraulic pumps for different applications.

Servo hydraulic pumps can serve various functions, such as water transfer pumps, rotary pumps, and hydraulic piston pumps, as they serve various purposes. As a result, Alibaba.com has a variety of servo hydraulic pumps to serve various purposes, as they are made by rotating and checking the pressure of the machine. For instance, there are a number of pumps such as servo motor pumps and servo mechanism pumps. One of the most common types of pumps is the servo hydraulic pumps, which serve different purposes. As a result, it is important to have a variety of pumps, such as the servo motor pump and servo motor pump.

Servo hydraulic pumps work with a series of pistons, depending on the condition of the liquid. In a case, the servo hydraulic pumps work with pressure to increase the pressure of the liquid, but they are notchangeable. The servo hydraulic pumps have a variety of hydraulic pressure pump, depending on the usage of the pump, it is important to know that they are increasing the variety of hydraulic pumps for different applications.

There are several benefits of using hydraulic servo pump products. First, these motors are capable of producing high speeds. This means that they can be used in various industrial applications. Another benefit of hydraulic servo pump options is that they allow you to control acceleration. Regulated control allows for consistent and controlled movement, which is essential for demanding applications around the world. This also helps in reducing wear and tear on engine parts since the speeds don’t change abruptly. Ac motors require less power to start up. They distribute it evenly and maintain a steady flow as it runs. This helps in reducing the risk of burnout that occurs when a motor is overworked during startup.

When it comes to choosing the hydraulic servo pump, there are several factors that you need to consider, including flexibility, the noise it produces during operation, and size. Flexibility is an important factor to consider when buying your hydraulic servo pump. This means that you should be able to use the motor for various applications. Another factor that you need to consider is the noise it produces during operation. The motor needs to be quiet during operation so that it doesn’t cause a disturbance. The size of the motor is also another factor to consider. The size of the motor greatly depends on the type of operations you are carrying out. Choose the appropriate size to avoid overworking it.

For wholesale hydraulic servo pump, visit Alibaba.com. This online shopping platform offers a wide range of ac motors that suit your needs and budget. Go to the website at any time and place your order with a few clicks.

Alibaba.com offers 17,257 servo motor hydraulic pump products. A wide variety of servo motor hydraulic pump options are available to you, such as condition, pump type, and warranty.

The true depth of our knowledge lies within the diagnosis and repair of hydraulic pumps and other hydraulic products. Whether we have your unit in stock or not, the repair is always an option. In fact, it may be your best option for obsolete and hard to find hydraulic pumps, motors, valves, and servos.

The performance and reliability you know and expect is still available today! Formerly known as the Vickers 2000 Series, one of the most experienced and respected names in hydraulics, Servo Kinetics Inc Classic 2000 Series pumps and motors are built to original Vickers 2000 factory specifications. Servo Kinetics Inc has been the exclusive manufacturer of Servo Kinetics Inc Classic 2000 series hydraulic pumps and motors since 2006. We engineer and manufacture all Classic 2000 Series pumps and motors to aircraft/aerospace quality standards, using all original metals, in our Ann Arbor, Michigan facility. Since acquiring the Vickers 2000 product line, we’ve made major improvements in the level of support available to power plants still using these fine products.

With Linde Hydraulics discontinuing their in-house remanufacturing program in February of 2023 - Hydraulex (our Washington State facility) is now 1 of 5 Authorized Linde Service Centers within the USA and Canada. We"ve worked closely with Linde for many years and have factory training & are factory supported by Linde.

Servo hydraulic power packs are suitable for hydraulic systems with variable speeds and dynamic requirements. Due to the energy efficiency of the servo-controlled pump drive, no separate cooling is required.

Socket - Eaton Servo, Tool, 54 Pump. Along with this Eaton socket we also carry other hydraulic parts. This includes gear boxes, hydraulic filters, hydraulic controls, pumps, motors and more. Con-Tech Manufacturing is a leading source of parts and accessories for your ready mixer truck and/or fleet. If your having trouble locating a certain part please give our parts team a call at 507.374.2239.

CML"s products are widely used in all kinds of manufacturing machinery, metal processing machinery, mobile machinery, hydraulic systems, servo systems, and integrated hydraulic oil and electricity application.

Combining the characteristics of different Hydraulic pumps to achieve low noise creates a friendly working environment, low energy consumption joins environmental protection. Low consumption for cost-saving, etc., Most importantly, it can greatly improve the accuracy and stability of mechanical operation and maximize customer benefits.

CML (Camel Precision Co., Ltd.) is one of the leading manufacturers in Taiwan, as a hydraulic total solution provider, dedicated to the manufacture and sales of hydraulic products, assisting customers in building their customized power units and hydraulic systems.

Internal Gear Pump SeriesSeries No.Shaft SpecDisplacement of Shaft End Pump (c.c./rev)Internal Gear Pump SeriesSeries No.SDisplacement of Rear Pump (c.c/rev)Rotation Direction

REMARK: Normally the bigger pump should be set in front of smaller one; for pumps with same size, the one with higher pressure is usually ahead of the one with lower pressure, and so forth if there are more than two pumps connected.

In a conventional hydraulic system, a fixed-speed motor drives the pump that circulates the hydraulic oil from the reservoir to the hydraulic cylinder. To keep the oil circulating, the pump needs to run constantly, consuming energy even when the actuator is stationary.

Pumps in hydraulic systems are commonly driven by induction motors, which are inherently less efficient than the permanent-magnet motors used in servo designs. Induction motors have to draw current in order to generate the magnetic field required to get the rotor to turn. Their efficiency also decreases when they are run below their rated speed.

Of course, if you’re reading this article, you probably know about these problems firsthand. What you need is a solution. Hybrid electrohydraulic systems leverage the power density of hydraulics with the responsiveness and energy savings of electromechanical technology. Unlike the induction motors used in fixed-speed pumps, the permanent magnet motors used in servo pumps operate synchronously and without any latency. Even better, they run efficiently across a range of speeds. “With a servo pump, you don’t have to have continuously circulating hydraulic fluid,” says Kerns. “Basically, the motor comes on and runs when you need pressure, and with a much faster response time.”

This means that you’re not paying to operate the pump full speed when the hydraulic actuator is stationary. Indeed, analysis shows that a conventional hydraulic system will cost considerably more over time than a hybrid version using a servo pump (see figure 2).

“The end-user gets energy savings very similar to that of an all-electric driven machine,” says Monte Swinford, regional factory automation sales manager for Bosch-Rexroth (Hoffman Estates, Illinois). “If they run the same part, same cycle, they will see significant savings. I had one client who saw a 90% reduction in energy usage.”

The instant response delivered by servo motors enables the actuator to operate much more quickly and deterministically, making it a good fit for applications like punch presses. The solutions also involve less complex systems with smaller footprints while incorporating value-added devices like smart drives with real-time diagnostic capabilities (see figure 3). In the case of applications that would normally place the reservoir at a distance from the hydraulic cylinder, the use of a servo pump at the actuator can eliminate the need for long hydraulic hoses that are prone to leaks or breakage.

Applications like injection molding are perfectly positioned to benefit from the technology. Rubber injection molding processes, for example, require the pressure to be applied and then maintained at a set level for an extended period of time while the rubber fills all nooks and crannies of the mold. In the case of a system run by a fixed-speed pump, the motor would be running the entire time, consuming power and generating heat, even though it is only maintaining pressure. With a servo pump, the holding torque of the motor is sufficient to generate the required pressure. “Because you’re using permanent-magnet servo motors, there’s virtually no voltage on the motor,” says Raymond Seifert, director of application engineering, Baumueller Nuermont Corp. (Windsor, CT). ”As a result, even though you might have to maintain a holding current, the actual power that you’re using is minimal.”

Indeed, a calculation of energy consumption and cost for this application based on the duty cycle of the motor showed a clear advantage for the servo-driven design. “The customer was happy with the prototype and could justify the cost,” Seifert says. “They are now looking at retrofitting more machines.”

A new hybrid electrohydraulic press using a dual-pump design has been developed as an off-shoot of the servo-motor-driven pump technology. The approach allows bi-directional pumping of the hydraulic fluid, enabling the customer to reduce the size of the existing hydraulic press reservoir to nothing more than an accumulator in the hydraulic circuit. Fewer components and less oil means a smaller footprint, lower cost for the system, better products, less chance of leakage, and less money spent on both purchase and disposal of the hydraulic oil.

Of course, shrinking the volume of oil does increase the importance of thermal management. The smaller volume of oil means that it heats up more quickly. When the temperatures get too high, the pump can fail. To guard against this, the addition of auxiliary cooling in the hydraulic circuit may be necessary to ensure temperatures remain under control.

Servo pumps deliver benefits beyond just cost savings. The level of control provided by closed-loop feedback leads to more precise motion. In contrast, conventional hydraulic systems may not even use a drive, let alone feedback. They may simply use a motor with a simple on/off switch that runs at constant speed. The closed loop feedback of a servo pump equips the system to deliver the exact torque or speed required for the application, and do it instantly.

“Even if you use a drive with a standard induction motor, you still have an element of delay in getting that system up to a certain pressure,” says Kerns. “More often than not, you’ll see a hydraulic system that doesn’t even have a digital feedback loop, just a regular analog loop. The big benefits of the servo motor are the response time and the fact that you’re able to run those motors up to really, really high RPMs to get to where you need to be much quicker.”

This level of fine control can benefit applications like metalforming. When metal is deformed into a shape, it has to be slightly over bent so that it will assume the correct form after recoil. For best results, full force should only be applied in the last millimeter or two of motion. Servo pumps enable much more accurate control of the motion of the hydraulic actuator, creating better quality parts.

Although system cost and performance are important, the modern industrial environment imposes other challenges to machine design and operation. Particularly if you are involved in industries like automotive manufacturing, you face growing regulation for working conditions. Here, too, servo motors provide superior solution to conventional fixed-speed pump designs by virtue of their whisper-quiet performance. “When customers take the risk and make the change, their jaws just drop with how quiet their new machine is,” says Swinford. That performance is not just good for end-users but for OEMs, he notes. “I have one client who has kept their factory full for the last three years because their end users are so excited by the noise reduction that they keep ordering new machines just to replace the ones in the field. Most of them wind up having flashing lights on the machine to let customers know that the power’s on.”

As intriguing as the technology may be, it’s important to remember that the performance of the system is only as good as the design approach. “It’s not the kind of thing that you just kind of slap together,” Swinford says, citing limiting factors like minimum and maximum pump speed, pressure rises, etc. “The best thing to do is to start with a clean piece of paper. Sure, you can just add something onto what you have and make it work, but it’s not going to be as competitive in the global marketplaces as starting over.”

Everyone interviewed for this article agreed that the adoption of the technology is still in the early stages. Far from tempting manufacturers to wait until later to consider the technology, that should spur OEMs and end-users alike to explore the use of servo pumps. Taking action at the beginning of a market evolution is the way to derive maximum benefit from the conversion. Designing servo pumps into your next hydraulic system will position your organization to gain a significant competitive advantage over organizations working with the incumbent technology.