Automatic Overload Protection System WTZ-A700 overload limiter for level luffing crane

详情

What's Overload Limiter System?

The overload limiter is a safety device installed on the hoisting drum to sense the lifting weight of an overhead crane or gantry crane to prevent overload.

WTZ A700 Overload limiter can be in the form of English characters, graphics,characters and so on comprehensive display the various parameters in the process of work. As the main hook load, vice hook load, work boom Angle, length of boom, radius, etc. 

Overload  Limiter  Alarm function 
Have sound and light alarm function: when the crane boom work amplitude limit close to work, when lifting load and torque device close to the permitted load limit, torque system issued a warning of slow beeping sound. Warning lights flashing slowly torque system. 

When jib frame work scope to work limit, when the lifting load and torque reaches equipment when the permitted load limit moment send urgent alarm beeping sound. Shortness of torque system alarm indicating red light flashing.

Overload Limiter protection function 
Control output function: when boom amplitude limit close to work, work when lifting load and torque device close to the permitted load limit, the system output torque control signal to stop the crane continue to continue to run in the direction of risk, allow crane moves in the direction of security. 

Load Moment Indicator(safe load indicator or Crane computer) is a device which is installed on various sorts of cranes like mobile, crawler, tower, gantry, portal, marine and offshore crane. It alert the operator if the lift is exceeding the safe operating range. In some cases, the device will physically lock out the machinery in circumstances it determines to be unsafe. 

It controls the lifting equipment to function as per the manufacturer's suggested safe load charts. Each of the measured parameters like load weight, working radius, control limit,angle and extension of the crane boom, etc will then further be displayed in the operator's cabin.

Technical Parameters

Application Cases


Company Introduction

Weite Technologies focusing on crane lifting equipment safety management since 2002,our own brand is WTAU,China Top 3 brand OEM manufacturer of load moment indicator system.

We help protect cranes and lifting equipment under safety working condition with customized Load Moment Indicator(LMI), Crane Safety Monitoring System, Tower Crane Anti Collision System,Offshore Crane Collision Avoidance System ,Marine CCTV Camera System, Crane Safety Device, Crane Remote Monitoring &Management Platform,Overload Limiter, Length Angle Sensor, Load Cell Sensor, Anemometers, Anti Two Block Device etc.

Nowadays, WTAU products are widely used in marine,electrical, chemical, steel, metallurgy, construction, ports and other industries, and have been wide spreaded to over 60 countries and regions.

FAQ

Q1:Who are you?
A1:This is Cherry from Weite Technologies Co.,Ltd. I am the Crane Safety Manager.

Q2: What does your company do?
A2: We assist crane owner and operators to keep their crane fleets under safe working conditions and zero accidents. No matter Crawler, Mobile, Tower, Gantry, Overhead or Offshore Cranes and so on.

Q3: What are the products?
A3: Load Moment Indicator(LMI), Crane Safety Monitoring System, Tower Crane Anti Collision System,Offshore Crane Collision Avoidance System ,Marine CCTV Camera System, Crane Safety Device, Crane Remote Monitoring &Management Platform,Overload Limiter, Length Angle Sensor, Load Cell Sensor, Anemometers, Anti Two Block Device etc..

Q4: Is the company well-reputed?
A4: It is a China Top 3 brand focusing on Crane Safety Protection Equipment. We are also Safety Partners for Global Top 100 Crane Owning Companies .

Q5: My Crawler Crane's display could not show anymore, can you assist us? 
A5: Yes, we can replace a new one for you with WTAU LMI system, which will make your old cranes back to normal working again.

Q6: What are the components of your LMI system?
A6:Pls refer to the below pic for compulsory and optional parts. (display, control box, load sensor, angle sensor, 3-color alarm light, A2B limit switch, anemometer)

Q7: How you assure the quality?
A7: The Product Warranty for the total item is 12 months. Any problem after installation, we will change the new one for free.

Q8: How to install the LMI? 
A8: English User Manual(include all the details of each item) will be offered for installation and trouble shooting(refer to the pic below). Also free Remote Instant Technical assistance would be offered by our english engineers. Or we can send our engineers to assist you locally(for a fee).


Q9: How to contact you?
A9: Send your inquiries to us,will reply you within 24 hours.

Q10: How much is your LMI system?
A10: Send me the crane model(like Kobelco 7055, Sumitomo SCX500), hook number, working conditions(Luffing Tower Working Condition, Pilling) and special requirement and the load chart . Your contact info is a must.