Why choose a caliper disc brake? Because they are made for the real world. Industrial caliper disc brakes work reliably to slow and stop movement. They can hold a load in place or provide smooth, variable speed tensioning. For example, with standard pneumatic or hydraulic brakes, you can use changes in pressure to gradually modify the tension, which is a necessity in the case of reels and spools.

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Caliper brakes can be used on a rotating disc or on a rail to control linear movement, as long as there is something for the brake to grip.

Maximum versatility

Branham offers pneumatic caliper disc brakes as well as hydraulic and mechanical models. Each provides different practical advantages depending on your application:

• Pneumatic brakes don&#;t need electricity, so if there&#;s a loss of power, it won&#;t affect function as long as compressed air is still available. You can create a system that locks up the brake if pressure is lost by using pneumatic spring-applied models. This style makes for ideal emergency brakes&#;just pressurize to release.
• Hydraulic brakes are also relatively easy to use and don&#;t require electricity but offer higher braking force depending on your hydraulic pressure.
• Mechanical brakes are lever-operated, so there is no need for an outside power source. That makes this brake style especially easy to incorporate into your design.

Indoors and out, we are surrounded by examples of industrial caliper brakes in action. Many of these uses are quite common, but others are more unusual or even one-offs&#;as diverse as the real world itself. Here are just 17 of the possible use cases for caliper disc brakes:

1. Manipulator arms (to hold the elbow and/or shoulder in place)
2. Conveyor systems&#;not only in traditional manufacturing settings but also for portable units that are used to unload trucks, where the brake holds the unit in place while the conveyor is operating
3. Hose reels
4. Indexers&#;for example, spring-applied caliper brakes for welding on steel frames (the brake holds the jig in place while the weld is made and then allows rotation to the next weld point and holds again)
5. CNC machinery
6. Packaging&#;tensioning certain lines or rolls of material
7. Paper and corrugated box manufacturing
8. Printing presses
9. Web and wire tensioning
10. Wind turbines
11. Winches
12. Off-road vehicles&#;including vintage racing snowmobiles
13. Trailer emergency brakes (for on- or off-road vehicles)
14. Agricultural equipment
15. Remote-controlled sewer inspection vehicles (or any other remote operating unit)
16. Theatrical rigging
17. Mining rigging

Versatility isn&#;t the only reason to use caliper disc brakes

Multiple real-world factors make caliper disc brakes a good choice for your application:

• They are an inexpensive solution&#;the up-front cost is lower, and they&#;re easy to inspect as part of your regular upkeep routine.
• They provide reliable, consistent function, whatever the application.
• The physics and capabilities of caliper disc brakes are easy to translate into equipment design.

Despite the many examples we give here, this is by no means an exhaustive list of possible caliper disc brake uses! Whatever your application, if it requires slowing movement, stopping movement, holding loads, or tensioning, an industrial caliper disc brake is well worth considering.

Contact vs Non-Contact Tachometers: Which Is The Right Tachometer For You?

9:03&#;AM | 18 Aug

About Digital Tachometers

A digital tachometer is a handheld device designed to measure the rotational speed of a disk or shaft. This type of instrument expresses results in revolutions per minute (RPM).

Tachometer Applications

Both contact and non-contact digital tachometers have an extensive range of industrial and commercial applications, including measuring shafts, parts and belts on;

• Modes of transport such as cars, planes, trucks, tractors, trains, trams and light rail
• Equipment in processing and manufacturing facilities
• Farm machinery; and
• Research and education.

How to Select a Tachometer Type

All types of tachometers measure RPM, so how do you select the right tool for the job? Consider the following when choosing a tachometer type:

1. Your ability to access and make contact with the equipment to be measured
2. Whether or not it is safe to be close and make contact with the item to be measured; and
3. Whether you need information or parameters other than RPM or total revolutions? Contact tachometers often also measure linear distance and surface speeds rapidly, e.g. moving belts.

Types of Digital Tachometer

Contact Tachometers

Contact tachometers have a freely spinning wheel that directly contacts the rotating shaft to be measured. The tachometer's wheel spins freely, creating pulses interpreted by the tachometer and converted into revolutions per minute (RPM). Due to the method of measurement, many contact tachometers also calculate and display linear speed and distance.

Product example:

LED Display Contact Tachometer, 6" Circumference Measuring Wheel
Product code: IC-DT-107A

The IC-DT-107A allows you to quickly and accurately measure objects' rotational and surface speed using a 6-inch circumference measuring wheel.

Top 3 Features:

1. Built-in memory for last, maximum, minimum and ten separate readings
2. The meter comes with a NIST traceable calibration certificate
3. A complete measuring kit including the 6-inch circumference measuring wheel, funnel tip adapter, shaft extension, batteries, NIST traceable calibration certificate, instruction manual and a foam-fitted carrying case

Specifications:

Display Range: 0.10 to 25,000 rpm with floating decimal

Accuracy:

• 10 to 999.99 RPM: ±0.06 RPM
• 1,000.0 to 9,999.9 RPM: ±0.6 RPM
• 10,000 to 25,000 RPM: ± 0.006% RPM

Measurement Units:

• Per Minute: Revolutions, Inches, Feet, Yards, Meters
• Total: Revolutions, Inches, Feet, Yards, Centimeter, Meters

Non Contact Tachometers

Non-contact tachometers are specialised devices that do not need to make any physical contact with a rotating shaft to obtain a measurement.

Non-contact tachometers comprise a handheld digital unit and an infrared laser source. First, the user applies a small piece of reflective tape to the shaft to be measured. Then, to take a measurement, users align the light beam with the reflective marking tape target. Each time a shaft rotates and the laser meets the reflector, light reflects towards the sensor in the tachometer. The tachometer counts each time and expresses this as total revolutions over a given time, i.e. RPM.

Product example:

Digital Tachometer with Memory includes Min-Max
Product code: DT-48

About:

The DT-48 non-contact digital tachometer is bursting with user-friendly features and useful functions.

Want more information on Non-contact rotary caliper? Feel free to contact us.

Top 3 Features:

1. An extensive measurement range from 2 to 99,999 RPM.
2. Recalls minimum, maximum and last measured values with a single button press.
3. A rapid sample measuring time of 0.5 seconds for RPM measurements over 120.

Specifications:

Display Range: 2 to 99,999 RPM

Accuracy: ±(0.05% plus 1 digits)

Measurement Units: RPM and revolutions

Video: How to Use the Digital Tachometer DT-48

Dual Contact /Non-Contact Tachometers

Find the choice of either contact or non-contact tachometer too limiting? Get complete measurement versatility with a dual contact and non-contact tachometer. These meters have both a contact wheel and a non-contact laser source for complete versatility.

Product example:

Combination Contact & Non-Contact Tachometer
Product code: IC-DT-207LR

About:

The IC-DT-207LR combines the best features found in contact and non-contact tachometers to accurately measure RPM, surface speed, and length. In addition, a screw-in contact adapter makes it quick and easy to convert from non-contact to contact operation.

Top 3 Features:

1. A built-in high-precision laser measures from distances up to 4.2 meters.
2. NIST traceable calibration certificate included
3. The memory stores 13 readings and retains them for 5 minutes. The thirteen stored readings include:
   1. data for the last measurement taken
   2. maximum value
   3. minimum value; and
   4. up to ten measurements.

Specifications:

Display Range:

• Non-contact: 6 to 99,999 RPM
• Contact: 0.8 to 25,000 RPM

Accuracy:

• 6 to 8,299 RPM: ± 1 RPM
• 8,300 to 24,999 RPM: ± 2 RPM
• 25,000 to 99,999 RPM: ± 6 RPM, max.

Measurement Units:

• Per-minute: Revolutions, Inches, Feet, Yards, Meters
• Total: Revolutions, Inches, Feet, Yards, Centimeter, Meters

Conclusion: Contact vs Non-Contact Tachometers

In summary, the point of difference between contact and non-contact tachometers is how measurements are performed. Contact tachometers require access to the rotating shaft to be measured, while non-contact meters only require line-of-sight.

To choose a type of tachometer, consider the following:

1. Your ability to access and make contact with the equipment to be measured
2. Whether or not it is safe to be close and make contact to the item to be measured; and
3. What exactly do you wish to measure? Some contact meters can measure distance and linear speed along with RPM.

Browse all digital tachometers here

Read: How To Choose A Digital Tachometer

For help choosing the best tachometer for your application, speak with an Instrument Choice Scientist: Call 737 871 or [ protected].

If you want to learn more, please visit our website Portable photoelectric camera fixed caliper.