• Carmen Zajicek

The R147 Wireless—The Best A2B on the Market?

Hi, my name is Austin. We’re planning to start construction work in New York as soon as the COVID-19 situation is under control. Like any other construction project, it’ll involve heavy machinery and cranes. We’re making efforts to improve the safety of our crane operations. A friend of mine advised me about two-blocking accidents and recommended the R147 Wireless ATB system, calling it the best A2B on the market. What are your thoughts?


Thank you for the question.


Over the years, crane accidents have resulted in countless injuries and fatalities around the globe, including the United States. From mechanical failures to overloading, several reasons can lead to catastrophic accidents.  


Two-blocking is one of the common crane accidents. It occurs when the crane’s hook assembly comes into contact with the boom tip, putting additional stress on the hoist. Therefore, it’s essential to install the anti-two block (ATB) device to counter this problem.


Let’s find out more!


What is the anti-two block device?

An anti-two block device is a switch device that warns when the hook block is close to contacting the boom tip.  When the ATB switch sends a signal, the alarm in the cab lets warns the operator and, in some cases, automatically locks out the crane to prevent a two-blocking accident.


The R147 Wireless—The Best ATB on the Market?

Yes. The R147 wireless ATB system is one of the most popular anti-two block devices available on the market today. Developed by RaycoWylie, a leading manufacturer of crane safety equipment, it’s an easy-to-install device that allows crane operators to monitor a two-block warning situation.


Technical Specifications

The R147 wireless A2B system uses a compact display size of 4.69” x 3.13” x 2.13” with a display rating IP67, which means it offers excellent water resistance. The operating temperature and range of the device are -22° F to 158° F and 400 ft range, respectively.

Other technical specifications include:


  • Supply Voltage: 10 to 30 VDC

  • Relay Output: One (500mA)

  • Radio Frequency: 2.4 GHz


Features

The R147 wireless A2B system is equipped with DSSS transmission technology, which contributes to better RFI resistance and overall operational range. It has a very user-friendly display and can be easily installed.


The device comes pre-programmed with an audible and visual warning, which can be configured according to your needs. It also facilitates multi hoist applications and offers a long battery life using off the shelf lithium AA batteries.


Suffice to say, it’s the best anti-two block system currently available in the market. It can help prevent potential two-block accidents and improve the safety of your construction site.


Buy Quality Crane Safety Equipment

If you want to buy high-quality anti-two block systems, get in touch with Crane Warning Systems Atlanta. We’re the top RaycoWylie crane products distributer in the United States that offers a wide range of crane safety instrumentation, including the R147 wireless anti two block device. To find out more about our products, give us a call at 1-877-672-2951 today.

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