R 147 RaycoWylie Anti Two Block Kit for Cranes

This wireless anti two block system is designed to warn the crane operator of an impending two block or A2B situation.  If the crane is equipped with a lockout solenoid this can also be automatically activated to shut off the cranes motion until the A2B situation is resolved.  This anti two block system has been specifically designed to fit on telescopic cranes, boom trucks, derrick trucks and conventional lattice cranes with minimal effort and time requirement. There are two main components for this A2B system, the display and the boom tip sensor.  Please note, the weight and chain is not provided as most reuse their current one.  If you need one it can be purchased additionally here.

R147 RaycoWylie Crane Anti Two Block Kit Display

 The display and unit in the cab is able to monitor two radio anti two block switches, either of which can activate the signal to activate the lockout functionality.  The A2B display comes standard for 12V or 24V negative body cranes.

The anti two block switch itself is installed at the boom tip, and optionally at the end of the jib if dual A2B switches are required.  The boom tip switch detects the potentially dangerous two-block condition and send the warning signal to the display unit via wireless signal, no cumbersome cable reels are needed.

Simple & Safe

•     Simple user friendly display
•     Can activate lockouts
•     Audible and visual A2B warning
•     Pre calibrated by manufacturer
•     Internal antenna
•     Monitor up to two switches
•     Use standard AA batteries

Reliable & Cost Effective

•     Display Size 4.69 x 3.13 x 2.13 Inches
•     IP67 rating for both display and sensor
•     12V to 24V (min 10.2VDC / max 30VDC)
•     -4 to 148 degrees farenheit operating temperature
•     Uses standard AA batteries
•     500mA External digital output to relay or alarm

 
R147 Rayco Wylie Anti Two Block Components

1) the Rayco Wylie R-147 display/receiver unit in the cab able to manage two radio switches generating an electrical signal output used to activate lockout function. The display/receiver comes standard for 12V or 24V negative body machines. For machines requiring non-standard electrical systems, adapting relays or different installation procedures might be needed as further detailed.  The display is mounted in a convenient position in front of the operator’s working area. It’s microprocessor based, meaning that there is a computer inside the box with the operating software. This software has 2 operating modes allowing different functions: 1) Normal Mode 2) Calibration Mode

2) A radio anti two block switch to be installed at the tip of the boom and/or jib. It detects the « two-block » condition and send the information to the R147 display unit by radio link.  The Wireless ATB switch is utilized with a chain and block. A bracket supplied with the kit must be welded on the tip of the boom to anchor the anti two block switch. The switch contains 4 x AA standard lithium or alkaline batteries and is personalized by a serial number called «ID Number». The ID number is composed of 4 alphanumeric numbers. The two first digits identified by « H » stand for High part of the ID number and the two last ones identified by « L » stands for Low part of the ID number. This number is programmed in the Display unit at the factory. Therefore, if the Wireless ATB Switch delivered with your system must be replaced for some reasons, your Display unit will have to be re-programmed with the ID number of the new switch.

R147 Anti Two Block Brochure RaycoWylie

  R147 Rayco Wylie Anti Two Block System Manual