Haas-Mondomix, Netherlands is a leader in the food processing business, especially in aeration related equipment such as bakeries, dairy and confectionery products. The XYZ Depositor from Haas-Mondomix is designed to deposit products in several deviations and forms and is ideal for high capacity production and reliable deposit weight control. This allows producing several types of foam and sizes. In the past Haas was building XZ depositors to make 2D movements, consisting of a complex mechanical construction. With their unique approach to innovation and the use of Exlar’s products, Haas-Mondomix created 3D movements providing the speed and stability the application required.
Exlar’s I Series roller screw actuator was chosen for this application to accommodate the high load. With a quick stroke rate, the load was moved and positioned vertically in the machine at the required speed. The high dynamic load rating of the roller screw actuator measured 2x greater than a comparable ball screw and the life is nearly 10x higher. Exlar’s roller screw actuator was the perfect match for this high duty application!
The Exlar Linear Actuator Advantage with Planetary Roller Screw Technology:
Millions of cycles without re-lubrication or maintenance
Roller screws offer up to 15 times longer life than ball screws
Less noise than other motion technologies • Smooth motion
Less energy consumption than fluid power with electric actuation
Improve Filling, Reliability and Accuracy
Improving machine throughput
The flexibility offered by the servo based Exlar actuator offers you the ability to manipulate flow rates or volume instantaneously, without setting any switches or changing out any cams. Container size, volume, or liquid changes are simple to obtain – just enter a new setting in the operator interface panel, or have a PLC do the changes. Operate independent lanes or synchronize all the pumps together. The GSX Series provides a wash-down compatible, sealed design in a compact package. Replacing the cams or fluid power cylinders can be an easy retrofit resulting in better performance, less maintenance and longer life of your machine. Exlar actuators are being used to pump many products including milk, fruit juice, gelatin, yogurt, pudding, pet food, soup, and cake batter. Even paint, lip stick, grease and solvents are being pumped.
Replace the cams or air cylinders in your volumetric filling machine with an Exlar actuator and you will see precise volume control and an accurate fill rate! With an Exlar GSX Series actuator operating the piston pump, users are achieving better than 0.1% fill accuracy.
Twice the Efficiency with the Same Power Density as Hydraulic Actuators
The medical device industry requires several features and capabilities in a motion control solution. The actuator and servo control must be environmentally friendly, easy-to-use, highly efficient and most important, reliable.
Exlar’s all electric actuators are excellent replacements for hydraulic and pneumatic actuators.
Exlar’s patented GSX Series actuators offer power density similar to hydraulic actuators without the inconvenience, mess and maintenance required of oil powered hydraulic systems. Providing twice the efficiency of hydraulic systems, an Exlar solution can save significant energy costs. Using commercially available servo amplifiers, the set-up time of an Exlar electric system is far less than a fluid power system.
Machine for automated production of blood bags
Colpitt has traditionally used pneumatic or hydro-pneumatic cylinders to control the movements of their blood bag welding machines. However, they were not able to control the process as precisely as this application required. Colpitt was looking to switch to an electric servo system which could control all the motion for this process through PLC programming providing better control of the welding process.
GSX40 and GSX50 servo actuators were used in this application offering Colpitt the ability to manipulate motion parameters instantaneously, via an operator interface panel, eliminating the need for setting switches or changing offsets. This allowed Colpitt to achieve a quick transfer motion combined with a controlled low speed move for pressing at the end of each move. Not only did this help Colpitt maintain a high cycle rate, it also allowed them to achieve the accurate pressing control that their application requires. The integrated nature of the GSX servo actuator allows both force and speed to be set very precisely resulting in an accurate and easily controlled process.
Industrial gas turbine packages must deliver efficient and dependable performance with low operating and maintenance costs in order compete in today’s global market place.
Challenge Industrial gas turbine packages must deliver efficient and dependable performance with low operating and maintenance costs in order compete in today’s global market place. In order to accomplish this goal, manufacturers and retrofitters are turning to all electric servo solutions for their actuator needs, eliminating the need for pumps and tubing normally associated with hydro- mechanical or pneumatic designs.Exlar Corporation is a worldwide leader in the design and manufacture of industrial electric servo actuators.
Fuel Control Valve: The use of electric actuated fuel control valves on gas turbines can replace pressure regulator/gas loaders, throttle valves, and associated electrohydraulic actuators. Exlar’s servo electric actuators integrate a high performance servo motor and a specially designed roller screw mechanism for converting electric motor power into linear motion. The roller screw, which consists of multiple threaded helical rollers assembled in a planetary arrangement around a threaded shaft, is capable of carrying heavy loads for thousands of hours even in very arduous conditions. This, combined with high torque servo motor technology, provides a compact and powerful linear actuator solution for fuel valves.
Each Exlar actuator, when supplied with Exlar’s all digital positioner, will respond to command signal changes in less than 5 mSec. The speed of the response combined with the dynamic capability of the all-electric actuator delivers repeatability much greater than typical pneumatic or hydraulic cylinders and allows for end-to-end travel time of a 6 inch stroke actuator of less than 200 mSec. This performance makes Exlar’s actuators the obvious choice for applications such as turbine controls.
Exlar’s FT Series Actuator Performs in Class II Hazardous Location Environment
Coal Diverter Gate /Damper Control
The customer was using an Andco hydraulic actuator to control their coal diverter gate. Due to the actuator’s age, the customer was experiencing difficulties sourcing replacement parts for the unit. The Andco actuator also utilized old technology that the customer wanted to update through the purchase of a new actuator solution. This application required an actuator with a long stroke length that could control the motion of their large coal diverter gate. This application also required a solution that was rated for Class II hazardous locations because of the presence of coal dust in the facility.
The customer had previous experience with Exlar on a turbine application and felt comfortable with the Exlar product. They worked with the local Exlar representative and decided to purchase two FT60 actuators. The actuators provided the necessary stroke length for this challenging application; one actuator with a 12 inch stroke and the other with a 24 inch stroke. Operating in a Class II environment was required for this actuator solution and Exlar’s FT60 combined with a Explosion Proof motor and a Grove gear reducer satisfied this requirement. The customer also required a special trunnion mount and motor support bracket for their application which Exlar willingly designed. This non-standard trunnion mount and custom motor support was easily incorporated on to the FT60 actuator because of Exlar’s immense experience designing and manufacturing custom made actuator solutions for their customers.
Replacing the hydraulics actuators with all electric servo actuators in older steam turbines.
There are hundreds of steam turbines installed throughout the military and process industry that incorporate pre-1970 design. The valves on these turbines are predominantly operated by hydraulic actuators. Maintaining these hydraulic systems is costly with spare parts becoming more and more difficult to find. The control on these turbines in many cases is no longer adequate in today’s marketplace. Many plants that have older steam turbines are now upgrading them with digital controls and replacing the hydraulic actuators with all electric servo actuators from Exlar.
Application Solutions Steam Control Valve Steam turbines incorporate two basic arrangements of control valves: Shell Mounted and Chest Mounted. Shell mounted control valves are attached to the turbine shell. Some are modulated by a rack and cam arrangement. This valve operating method utilizes a common hydraulic cylinder to lift a rack of four to nine poppet valves in sequence. A fulcrum lever is used to multiply actuator force. Exlar directly replaces this main hydraulic actuator with a high performance servo electric actuator and positioner.
Each Exlar actuator, when supplied with Exlar’s all-digital positioner, will respond to command signal changes in less than 5 mSec. The speed of the response combined with the dynamic capability of the all-electric actuator delivers repeatability much greater than typical pneumatic or hydraulic cylinders and allows for end-to-end travel time of a typical 6 inch stroke actuator of less than 200 mSec. This performance makes Exlar’s actuators the obvious choice for applications such as turbine controls.
Saudi Aramco, headquartered in Dhahran, Saudi Arabia, is Saudi Arabia’s national oil company and a fully integrated global petroleum enterprise. Saudi Aramco manages the world’s largest proven crude oil reserves and the world’s fourth-largest gas reserves.
Application Solution Exlar’s GSX60 actuator eliminated the multiple single-point failure vulnerability by replacing the complex hydraulic system with the simple, compact solution shown in the photo at the right. The complete solution includes a fiberglass enclosure, a heavy duty precision trunnion bearing mount system, shock-absorbing minimum travels stops, and a thermoelectrically-cooled servo drive all designed and supplied by LCC. These components ensured the system would require minimal maintenance and trouble-shooting and that the actuator would survive in the desert conditions.
Maximize Performance With Servo Motors
For high speed labeling applications that require accurate and high response motion, the SLM and SLG Series rotary motors from Exlar provide the perfect solution. Where space is at a premium, their footprint is smaller than any other motor offering the same torque.
The integrated gear reducer in the SLG Series offers a higher stiffness and lower inertia than bolt-on gear reducers. These features allow for quicker acceleration and shorter settling times resulting in higher throughput on your packaging machine.
Exlar can configure the SLM and SLG Series to operate with nearly any servo drive on the market. This means you can have the advantage of the compact design and high performance of the SLM and SLG, while using the servo drive of your choice.
For generations, hydraulic cylinders were the core pull devices selected by mold makers. But today, when it comes to creating the core pull actuation, the ideal electro-mechanical solution is provided by Exlar.
Most plastic parts have a void. That void houses the electronics of a lap top computer or cell phone; on a plastic plate that void creates separate places for baked beans and potato salad. But, cycle time is where the money gets made. After the molded product is competed, the mold still has to be cycled, the core removed, the product ejected; and how fast those actions can be moved in and out impacts production.
Traditional hydraulic cylinders are fast, but Exlar’s GSX actuator can enhance cycle rates by letting related operations get started sooner. Exlar’s actuators and associated servo amplifiers can monitor their own position as well as the status of the rest of the machine, and allow processes to begin as early as possible, and work in conjunction with other processes to maximize throughput. Traditional limit switch controlled hydraulics don’t offer this flexibility.