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Profile Rail Brake
Nexen's RB Series of linear profile guide rail brakes uses spring force to secure the load in holding applications. Superior response time and high force for stopping and holding in e-stop and power-off situations. Each RB brake clamps directly onto the center of the guide rail to provide positive braking and holding in all axes. These profile rail brakes hold position accurately by eliminating drive train backlash and elasticity.
Nexen's RB Series is engineered for dependable performance. With a revolutionary set of patent pending features, the RB Series provides an industry leading braking solution for linear profile guide rails. If personnel safety is required, an unrelated, redundant safety system is recommended.
Fits 15, 20, 25, 35, and 45 mm Profile Guide Rails
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Clamping Systems
Pneumatic clamping or brake system of highest power and torque. Fail safe security clamping pneumatic failure means clamping remains effective. The values of hydraulic clamping can be achieved and even exceeded. Tested and approved for more than 1 million clamping cycles (static conditions)
Applications:
- Linear guideways, guideways
- Clamping of linear drives
- Tilting heads and swiveling tables
- Rotary tables
- Spindles
- Support cylindres, feeders
- Clamping of the bars, pistons and shaft
- Elevating devices
- Hydraulic presses
- Hydraulic lifts and elevating tables
- Safety catches
- Blocking systems
- High-lifting devices
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Spring Engaged, Rod Lock, For ISO Pneumatic Cylinders
Model RLSS 040-016-S-A
Rod Size: 16 mm
Holding Force: 890 N
Model RLSS 125-032-S-N
Rod Size: 32 mm
Holding Force: 8560 N
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Hydraulic and pneumatic safety brakes - Highest performance density | Backlash-free force transmission | Effective both ways | Linear brake release without moving the axes
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Advantages
Pneumatic clamping with high forces
Optimum safety clamping - if the pneumatic fail the system is locked
The values of hydraulic clamps are reached and exceeded
Low system costs in comparison to hydraulics
Simple installation
Compact design
Wide range for many shaft sizes can be delivered
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The SITEMA Safety Brake type KSP is designed to hold a vertical moved mass in one direction (against gravity). The holding is done on a round shaft. This could be an already existing cylinder rod or a separate rod. The Safety Catcher can also be used to catch the falling load in case of an emergency-stop. The holding force is relatively big in one direction (downwards) and in the other direction (upwards) relatively small.
Safety brakes are already used in the following applications
- vertical or diagonal machine tool axes
- vertical axes of loaders
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The newcomer in the Ortlinghaus line of products for press drives is our hydraulically actuated form - fit linear motion lock, featuring electronic monitoring. This WORLD NOVELTY is used to lock the press ram regardless of it`s current position and can be integrated into the clutch itself. The activation of the linear motion lock can be implemented into the press control or can be activated by the machine operator from his panel. This easy to operate lock presents a maximum amount of safety for manual work within the area of the ram of presses and is regarded as a vital component for modern on the job safety.
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Actuation
Safety Locks are held open by hydraulic (100 bar min) or pneumatic (3,5 bar min) mean and clamp when pressure drops.
Direction of load
In most applications Safey Locks are mounted on a baseplate, so that the load causes a compressive force to the mounting surface. But if the application requires an upward absorption of the load, a flange for attachment is required as well as a special design of the Safety Lock housing regarding the tensile load.
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Hydraulic heavy load brake:
The Braking and Clamping Element with spring-loaded energy storage KBHS.
The KBHS series is a hydraulically operated heavy load brake featuring spring-loaded energy storage.
This function is based on the toggle lever principle. Pre-tensioned stress bolts provide holding force in case of pressure drop. Here the large-surface contact sections, which are equipped with a special brake lining, are pressed directly onto the free surfaces of the section rail.
At a hydraulic opening pressure of 150bar a holding power of up to 40,0000N is achieved.
The KBHS series features a compact design and is suitable from sizes 35 to 125.
The KBHS series is designed for braking and clamping on linear guides. Because of the material combination of the linear guide/contact section, the linear guide won't be damaged by the contact section
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PClamp clamps and brakes rod loads safely amd quickly. It can be adapted to standard systems such as pneumatic cylinders from leading manufactures (e.g. SMC, Festo= or to individual solutions. Rotatory clamping can also be achieved with PClamp. Certified systems from Employer's Liability Insurance Association can be realised.
Area of application:
Linear rails and guide ways
Clamping of linear axis
Swivel tables
Rotary tables
Spindles, feeders
Rod, piston, spindle clamping
Elevating devices
Hydraulic presses
Hydraulic lifts and elevating tables
Safety catches
Blocking systems
High-lifting devices
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Nexen's RBR-series rail brakes are ideal for clamping and power-off holding applications. The unique piston design allows high clamping forces and low release pressures.
The RBR is engineered for dependable performance, easy set up and low maintenance.
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Active without pressure - compact and powerful:
The Clamping and Braking Element with spring-loaded energy storage UB.
The UB series combines the technology of our BW, TK and MB series. The rigid housing and central position of the wedge slide gear achieve very high supporting forces. The mounting hole template enables the BW, TK and MB series to be substituted. The UB series is based on a dual-effective wedge slide gear with spring-loaded energy storage for clamping and braking without pressure.
This arrangement of three pistons connected in a line allows use of a stronger spring at 5.5bar.
The stronger spring-loaded storage permits holding forces up to 9,000 N. Positive fit contact sections mounted within a strong casing guarantee high axial and horizontal rigidity.
The UB series is designed for braking on linear guides. Because of the material combination of the linear guide/contact section, the linear guide won't be damaged by the contact section.
In order to exclude damage from contamination with chips (chips between contact section and linear guide), the elements can be fitted with original seals (seal kit) from the respective linear guide manufacturer and longitudinal seals as accessories.
When used in harsh work environments or with cooling liquid, the seal kit should be used as well.
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Active without pressure:
The Clamping and Braking Element including spring-loaded energy storage MB
The MB series is based on a dual-effective wedge slide gear with spring-loaded energy storage for clamping and braking without pressure.
As a specific feature it has three pistons connected in a line.
This arrangement allows use of a stronger spring at 4.5 bar than the BW series does. The stronger spring-loaded storage permits holding forces up to 3,800 N.
The MB series is designed for braking on linear guides.
Because of the material combination of the linear guide/contact section,the linear guide won't be damaged by the contact section.
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Active without pressure – flat design:
The Clamping Element for torque take-up with spring-loaded energy storage TP
The TP series is a pneumatic clamping element for torque motors or for rotational axes.
It works with a newly developed spring-loaded energy storage system.
Torque take-up occurs inside the TP which excludes wear on the driven shaft.
TP achieves high holding torques at a pneumatic opening pressure of >4 bar.
Due to high rigidity, positioning accuracy is exact in use.
The zero maintenance TP is suitable for shaft diameters of
Ø50 to Ø320 mm.
It is characterised by easy assembly and a flat design.
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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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Ogura is the largest manufacturer of electromagnetic clutches and brakes in the world. Current manufacturing capacity is in excess of 30 million clutches and brakes per year. We have 14 manufacturing plants throughout Europe, the Americas, and Asia. All plants are certified ISO9001 and most have been certified ISO 14001 and TS16949. We have over 3,000 designs available. Besides the standard product shown we also make a variety of specialty products. Our products are used in automotive, industrial, mobile, factory automation, office automation, agricultural and construction machinery industries. Our brakes are made in the following styles: electromagnetic single face, multiple disk, hysteresis, eddy current, magnetic particle and permanent magnet. Torque range for standard products is from .0001nm to 1,000nm.
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Hysteresis Brake Dynamometers (HD series) are versatile and ideal for testing in the low to middle power range (max. 14 kW intermittent duty). Hysteresis Brakes do not require speed to create torque, and therefore can provide a full motor ramp from free-run to locked rotor. Brake cooling is provided by convection (no external source) or by air (compressed air or dedicated blower) depending on the model. Hysteresis Dynamometers have both continuous and intermittent power ratings where the dynamometer is capable of dissipating more power for shorter periods of time. All Hysteresis Dynamometers have accuracy ratings of ±0.25% to ±0.5% full scale, depending on size and system configuration. Also available are special designs for high-speed motor testing.
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Pure Hysteresis Brakes produce torque strictly through a magnetic air gap without the use of magnetic particles or friction components. This method of braking provides far superior operating characteristics (smoother torque, longer life, superior repeatability, high degree of controllability, and less maintenance and down time) which make them the preferred choice for precise tension control during the processing of nearly any material, web or strand.
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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.
Especially designed to be easily fitted on equipments such as Converting, Printing, Wire & cable, and Packaging machines.
Cost effective solution for variable torque simulation systems (automotive and aeronautics test rigs).
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Magnetic particle brakes and clutches are of simple design. Due to their size they produce a high torque compared to for instance hysteresis brakes. They are having two rotors (inner and outer) and an air gap between these two rotors where the magnetic particles are dispersed in. An electric current passing through the coil creates a magnetic field, which aligns the magnetic powder into the gap. The higher the current, the more rigid the connection between the inner and outer rotor becomes. The principle is the same for brake, clutch and torque limitor.
Advantages:
Noisless work
Torque directly proportional to current
Torque independant from r.p.m. (starting from 30 min)
Strong design, units are able to be used with steady slipping
High torque range to be controlled (approx 1:50)
Applications:
Braking
Torque control, torque limiting
Tension control at winding, unwinding
Starting clutch operation
Calculated braking and starting
of certain masses and inertias
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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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ZF Hysteresis brakes can accommodate power ratings from 0.05 to 040 Nm, with integrated planet gaer box up to 270 Nm.
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Advantages
The superior design of these hysteresis devices provide several inherent advantages over magnetic-particle and friction devices. They operate on a frictionless design principle with virtually nor wear. This provides such advantages as: longer expected life, superior torque repeatability, life cycle cost advantages, broad speed range, excellent environmental stability and superior operational smoothness.
Control
In an electrically operated hysteresis brake or clutch, adjustment and control of torque is provided by a field coil. This allows for complete control of torque by adjusting DC current to the field coil. Adjustability from a minimum value (bearing drag) to a maximum value of 15 - 35% above rated torque is possible. In a permanent magnet device, the field coil is replaced by a magnet which provides the precise field strength necessary to produce rated torque without the need of electrical excitation. Since the field strength produced by a permanent magnet is a constant value, the resulting torque will also be constant. Physical realignment of the pole structure will result in limited (but predictable) changes in torque. Special designs utilizing this method are available and will allow for adjustments down to approximately 30 - 40% of rated torque.
Longer expected life
Hysteresis brakes and clutches produce torque strictly through a magnetic air gap, making them distinctly different from mechanical-friction and magnetic particle devices. Because hysteresis devices do not depend on friction or shear forces to produce torque, they do not suffer the problems of wear, particle aging and seal leakage. As a result, hysteresis devices typically have life expectancies many times that of friction and magnetic particle devices.
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Permanent Magnet Brakes - High Torque
Permanent magnet brakes of the range “High Torque” are mainly used as holding brakes and generate their braking action through a permanent magnetic field. The following functions are fulfilled here: Holding, positioning and emergency stop. The basic characteristics such as high power density, residual free releasing in any installations and backlash free transmission of the braking torque makes them perfectly suitable for the applications in servo motors.
Versions
86 611..P00
(Holding brake)
Standard rated voltages
24 V
Protection
IP 00
Thermal class
F
Torque
0,8 Nm – 300 Nm
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Magnetic Technologies Ltd. offers a complete line of hysteresis brakes for tensioning and torque limiting.
• Torque range from 0.1 inch ounce to 140+ inch pounds.
• Hysteresis brakes have no break-away torque, no wearing parts, and use no electricity.
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