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Warner Electric offers a full range of clutch/brake controls to provide the user with a choice of control options from basic power supplies to simple on-off controls, adjustable torque controls, overexcitation controls for rapid engagement and accuracy, and complete closed loop position controls. All models provide the necessary DC operating voltage required for use with electric clutches and brakes; 6VDC, 24VDC, or for the common 90VDC units. Control models are available for five basic application functions with a variety of choices in terms of mounting, input voltages, and control options.
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Closed loop controlled current Power Supply included in a very compact enclosure with integrated DIN rail fixing system.
Current regulation based on microcontroller technology, offering accurate current output control, high level of protection against transients (short circuits & circuits opening), and very easy setting-up.
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The Wichita Altra Sonic is a potentiometer-regulated ultra-sonic based tension control system designed to maintain stable web tension during
the steady running phase of paper, film and foil converting machines.
Simple to set up and use, the Wichita Altra Sonic is an analogue device that enables users to save over 50% of the cost of buying and commissioning a more complex digital control system.
Easy set-up
Setting up the controller is straightforward. The Altra Sonic receives its input from a scalable ultrasonic sensor. The sensor scaling is achieved with just a few button presses.
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With MEROBEL’s new DGT300, Web Tension Control has never been so easy to manage.
The newest Digital Controller from MEROBEL combines, in a smart and low profile front face enclosure, the most simple user’s interface with the most advanced technical features.
Designed for both closed loop and open loop tension control, the DGT300 is the up-to-date turnkey solution for unwinding, rewinding and intermediate tension control applications.
Allowing 100% setting up through its user’s friendly Windows PC interface, or through its front panel keyboard, the DGT300 includes all the requested web tension control specific functions : E-stop, soft start, hold & release, taper tension, no-stop splice turrets. Analog set point input is also available for using distant remote control with PLC analog output or potentiometer.
Allowing direct input of position sensors, US sensors, or any kind of load cells technology signals, the DGT300 design gives the benefit of fully digital calibration procedure as simple as 1-2-3 (no switch, strap, or resistance).
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Designed for precise closed loop tension control, the Spyder is capable of controlling web tension in unwind, rewind, point-to-point or dancer applications. It measures tension from one or more MAGPOWR load cells and outputs a corrective analog signal to control a torque device. Its reduced
size means it can be hidden away in an enclosure or underneath the machine.
With its ethernet connection, the Spyder can be viewed on a web browser for remote troubleshooting, programming and/or data collection. Additionally, the Spyder provides an analog input for Manual Level setpoint, control inputs for Run/Stop, Auto/Manual: Tension On/Off, and E-Stop, and a 0-1 mADC meter output proportional to measured tension.The Spyder is a cost effective, easy-to-use control capable of delivering advanced features such as adjustable taper tension to nearly any application...
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From 1992, over 3000 MW.90.10 systems have been installed, solving numerous tension problems in conjunction with Load Cells, Dancing Rolls, or Sonar.
The real news, however, is that the Microprocessor MW.90.10 is the first system to allow open loop control of mixed systems using one common control. Load Cells and Sonar, Dancing Rolls and Sonar, and Load Cells with Tacho Generator.
The high standard of design ensures the function reliabiiity, repeatability, and precision of the Display values.
Personalised operating parameters are stored in the Microprocessor's memory, which can be recolled easily, speeding up machine changeovers and so increasing productivity. Easily calibrated, small in size yet high in quality and performance, the MW.90.10 offers excellent value.
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The ICP Pneumatic Tension brake is equipped with an electrical fan for high thermal capacity. It is mainly suitable for winding and unwinding applications with a high maximum speed. Brake is available with or without guard.
The modular and ergonomic design allows easy re-configuration and maintenance of the braking units. An agile and reliable brake with the best price / quality ratio. Braking torque from 1,9 to 1.760 Nm.
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The most popular range of MEROBEL's EMP Brakes, offering tailored solutions for every needs from its 10 sizes and up to 5 different version (acceptable power dissipation level) for each size.
- EMP technology (ElectroMagnetic Particle)
- Torque proportional to the electric current, independent of the slipping speed
- The best design for Tension Control and Test benches applications
- 5 different versions (power dissipation) available
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The Positorq® brakes use multiple disc oil shear technology with a continual supply of cooling and lubricating fluid like all other Force Control units. The main difference is that the Positorq® Brake is a constant slip device. It is normally force lubricated for smooth accurate torque control over the entire speed range, even to 0 RPM. Tension torque is transmitted through the viscous shear of the fluid between the friction surfaces.
Torque is proportional to air or hydraulic pressure supplied to the piston. Teflon piston liners produce smooth controllable piston movement for precise control and quick brake response.
Web tension control and dynamometer (dyno) brakes are essentially energy absorbers. Rotary motion is transformed through the brake to heat, so a critical function of the brake is its ability to dissipate heat. In the Positorq® brake, fluid is pumped through the brake shaft to furnish a continuous supply of fluid between the friction surfaces. The fluid lubricates the surfaces at the point of engagement, and removes engagement heat. The fluid is then circulated through a cooling unit and cooled fluid is returned to the Positorq® brake.
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Multi-Caliper Tension Control Brakes
BTBA Medium Duty Fan Cooled Tension Control Brake With Up To 10.0 hp Thermal Capacity
STB Medium Duty Air Cooled Tension Control Brakes With Up To 3 hp Thermal Capacity
TCB Light Duty Air Cooled Tension Control Brakes With Up To 1.6 hp Thermal Capacity
XTB 10 Heavy Duty Air Cooled Tension Control Brakes With Up To 14.9 hp Thermal Capacity
XTB 12 Heavy Duty Air Cooled Tension Control Brakes With Up To 26.8 hp Thermal Capacity
XTB 14 Heavy Duty Air Cooled Tension Control Brakes With Up To 23.3 hp Thermal Capacity
XTB 18 Heavy Duty Air Cooled Tension Control Brakes With Up To 31.6 hp Thermal Capacity
XTB 22 Heavy Duty Air Cooled Tension Control Brakes With Up To 60 hp Thermal Capacity
XTBA 10 Heavy Duty Cross Drilled Air Cooled Tension Control Brakes With Up To 16.8 hp Thermal Capacity
XTBA 12 Heavy Duty Cross Drilled Air Cooled Tension Control Brakes With Up To 27.2 hp Thermal Capacity
XTBA 14 Heavy Duty Cross Drilled Air Cooled Tension Control Brakes With Up To 27.1 hp Thermal Capacity
XTBA 18 Heavy Duty Cross Drilled Air Cooled Tension Control Brakes With Up To 41.1 hp Thermal Capacity
Single Actuator Tension Control Brakes
Low Cost Air Cooled Brakes For Narrow Range Tension Control Applications
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Mistral
Wichita's Mistral pneumatic tension brake is attuned to the needs of the corrugating market for which it was originally designed. It is also a versatile product which is finding favor in additional tensioning applications. Wichita designers and engineers consulted extensively with mill roll stand manufactures and users to offer a tension brake ideally suited to needs of this particular market. The result is a compact, high performance, versatile brake capable of handling the tensioning needs of the latest machine designs, as well as existing equipment. The Mistral paves the way for increasing line speeds by 5.4 feet/sec. from 810 feet/min. (or slower) to 1,140 feet/min.
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Disc brakes to slow down, stop, maintain, control. Automatic offsetting or manual of the wear of the trimmings to guarantee a constant air-gap. Standard fixing centers horizontal or vertical
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Posidyne® clutch/brakes transmit torque by shearing automatic transmission fluid between multiple friction discs. The fluid absorbs the heat of engagement and dissipates it through the housing. The recirculating fluid minimizes wear, resulting in exceptionally long service life. Oil-shear operation provides a controllable, cushioned engagement that is smoother, quieter and more accurate than dry friction units.
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The Posidyne® clutch/brake is designed for start/stop applications. Oil shear technology combined with advanced friction materials deliver smooth, accurate engagements., excellent positioning accuracy and repeatability, and superior thermal capability. A multiple friction disc design provides high torque capacity in a low inertia package. The Posidyne® clutch/brake also delivers long service life with low maintenance for applications where downtime is critical. Totally enclosed rugged housings provide protection against hostile environments.
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Posistop® Oil Shear Brakes are designed to dissipate the heat buildup that destroy conventional braking devices. The Posistop® absorbs the energy generated by the braking action and controls the heat buildup - thus providing greater reliability and repeatability, as well as heat dissipation.
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These work the same as our constant tension stand. They are designed to give constant torque at the surface diameter. As the diameter decreases, the tension remains constant.
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Brakes
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Posidyne® clutch/brakes transmit torque by shearing automatic transmission fluid between multiple friction discs. The fluid absorbs the heat of engagement and dissipates it through the housing. The recirculating fluid minimizes wear, resulting in exceptionally long service life. Oil-shear operation provides a controllable, cushioned engagement that is smoother, quieter and more accurate than dry friction units.
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The Posidyne® clutch/brake is designed for start/stop applications. Oil shear technology combined with advanced friction materials deliver smooth, accurate engagements., excellent positioning accuracy and repeatability, and superior thermal capability. A multiple friction disc design provides high torque capacity in a low inertia package. The Posidyne® clutch/brake also delivers long service life with low maintenance for applications where downtime is critical. Totally enclosed rugged housings provide protection against hostile environments.
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Clutches
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With the X-Class, Force Control transforms oil-shear technology into affordable, off-the-shelf designs. Four standard models-XB1, XB2, XB3, and XB4, covers the most popular size range for brakes. Convenient double C-face or motor brake mounting and Clamped-Split-Quill allows drop-in, bolt-up installation.
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Brake cables used for park brakes and pull-pull cable systems to transmit pull motion between two mechanical devices without the use of rods. Used in applications requiring a high load capacity (1500 lbs) and low deflection (3000 lbs).
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The clamping elements react in the shortest possible response time by the patented pneumatic pre-loading of the system of the spring plates in the diaphragm.
These safety systems are permanently operational for the maximum machine protection.
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