WTZ-A300 lifting capacity limiter

1. Product Introduction

The WTZ-A300 load limiter is a long-established product of Weite Technology. It features a blue screen display and has been on the market for over 15 years, standing the test of time. This device is specifically designed for monitoring the lifting weights of 2 to 4 channels. It can combine and calculate the lifting weights of several channels and is particularly suitable for installation on complex lifting equipment such as large gantry cranes. It is also designed with an interface for external large-sized high-brightness display screens, making it convenient for on-site personnel to check the load conditions at any time.

2. Main functions

The core is to monitor the lifting capacity, support 2 to 4 input channels, and also be able to combine and calculate the total weight. It can output the collected data (either RS485 or 4-20mA signal is acceptable), and can also be connected to an outdoor large screen to display in real time how many tons have been lifted, allowing the operator to have a clear idea.

This overload limiter is currently the most widely used product in the market and also the main promoted product of our company.It has been in service in the market for over 15 yearsThe product is stable and reliable, and can stand the test of the market.

3. Core advantages

This limiter is outstanding in three aspects: Firstly, it is as stable as an old dog, integrating over a decade of practical experience and multiple upgrades and iterations. Before leaving the factory, it undergoes various strict tests and multiple layers of quality control. It is common for it to last for over a decade. Second, it is powerful and flexible enough in function. It has all the features that a load limiter should have, and the signal output mode is selectable. It can also be connected to a large screen without any problem. Thirdly, the operation is truly simple. Users can install, debug, and even disassemble and reinstall it in another place by themselves. The feedback is that it's very easy to handle.

4. Technical parameters

The display screen is liquid crystal, and the system error is ≤±5%(F.S). It can work from -20 ° C to + 60 ° C, with a humidity of 901T to 3T! Even when wet (no condensation at 20℃), with a protection rating of IP65 (dust and water resistant). Working voltage: AC220V±5%! The overall power consumption of the machine is less than 35W, but the alarm sound is extremely loud, exceeding 60 decibels. The input signal can be connected to a maximum of 5 channels, and the control output can also be connected to a maximum of 5 channels. The output mode can be selected as RS485 or 4-20mA current signal. Installation means hanging it on the wall.

5. Size

The main body is 250mm in length, 164mm in width, and 70mm in thickness on the sides. It's the size of the square box in the picture.

6. Typical applications

This device has a wide range of applications. It can be used in large general-purpose bridge cranes, bridge cranes for metallurgy, gantry cranes, dam top gantry cranes, single and double girder bridge cranes, loading and unloading bridge cranes, cable cranes, and even mechanical multi-storey car parks. The picture above is an example of a gantry crane. It is equipped with fixed pulley sensors, wind speed sensors, monitoring instruments (this is it), weight sensors, etc., which work together to ensure safety.

7. Success stories

There are quite a few cases: Shanghai Railway freight container gantry cranes have adopted it. The LZD900 cable-mounted crane has also been installed. The bridge crane for the power plant of Guangzhao Hydropower Station has been equipped. It is also available on the gantry cranes of Hairun Heavy Industry (Runhai Heavy Industry). The bridge erection machine of China Railway 12th Bureau has been installed. The gantry cranes of Zhongxi Shipbuilding are also equipped with WTZ-A300. These cases all prove its reliable application on various large and complex lifting equipment.