Merchandise Description

Solution Description
WTZ A700 Overload limiter can be in the kind of Chinese figures, graphics, people and so on complete show the a variety of parameters in the method of work. 
As the major hook load, vice hook load, perform boom Angle, duration of growth, radius, and many others. 

Overload  Limiter  Alarm function 

Have seem and light-weight alarm function: when the crane boom function amplitude restrict shut to work, when lifting load and torque unit close to the permitted load restrict, torque program issued a warning of sluggish beeping audio. Warning lights flashing slowly torque method. 
When jib frame perform scope to work restrict, when the lifting load and torque reaches gear when the permitted load restrict minute deliver urgent alarm beeping seem. Shortness of torque program alarm indicating pink mild flashing.

Overload Limiter protection function 
Control output operate: when boom amplitude limit shut to work, operate when lifting load and torque gadget shut to the permitted load limit, the method output torque manage signal to stop the crane carry on to carry on to run in the course of danger, allow crane moves in the course of safety. 

WTZ  A700 Load Moment Indicator(secure load indicator or Crane pc) is a system which is mounted on different sorts of cranes like cell, crawler, tower, gantry, portal, maritime and offshore crane. It alert the operator if the elevate is exceeding the risk-free operating selection. In some cases, the unit will bodily lock out the equipment in conditions it decides to be unsafe. 

It controls the lifting products to purpose as for every the manufacturer’s proposed secure load charts. Every single of the measured parameters like load excess weight, operating radius, management limit,angle and extension of the crane boom, and so on will then more be shown in the operator’s cabin.

WTZ A700  overload limiter system for  terminal  quayside crane 

WTZ-A700 Safe  Load Indicator program( LMI ) 
one.WTZ A700 screen/keep track of (8inch coloration contact Liquid crystal display screen ,have to)
2.Data control  box(must)
3.Pin  type  Lod mobile(need to)
four.Wind speed  senosr(optional)
5.Encorder(optional)
6.Other  spare  parts…

Specialized Parameters
 

Installation Cases 

Certifications

Firm Info

Weite Technologies Co.,Ltd

Founded in 2002, it is national hi-tech enterprise positioned in HangZhou, China. It has been concentrating on R&D and OEM production of lifting basic safety protection gadgets this kind of as Load Instant Indicator, Safe monitoring systems, overload limiter, Load mobile, Anemometers and so forth.We continuously focus on making certain lifting equipments run safely as prolonged-expression pursuing aim. 

“The trusted Safety Associate for International Leading one hundred Crane Possessing Organizations like Tat Hong, Asiagroup, Big Crane and Fortune 500 corps” . These days, WTAU items are extensively used in maritime market,electrical, chemical, metal, metallurgy, design, ports and other industries, and have been broad spreaded to above sixty countries and areas.

Worldwide Companions

FAQ

1) Is your firm effectively-reputated? How to show that?

It is a China Top 3 manufacturer concentrating on Crane Protection Security Gear. We are also Security Companions for International Prime 100 Crane Proudly owning Firms like Tat Hong(top 9), Asiagroup(prime 45), Massive Crane(best 94) and Best 500 firms such as ABB, Macgragor,TTS,CNOOC,etc. Products are been offered to more than sixty international locations and regions globally. 
 

two) How to guarantee the top quality?

The Solution Warranty for the complete merchandise is twelve months. Any dilemma right after installation, we will alter the new 1 for free.

three) How to put in the LMI?

English User Guide(contain all the details of each and every merchandise) will be offered for installation and difficulties capturing(refer to the pic under). Also totally free Remote Instant Technological help would be presented by our english engineers. Or we can send out our engineers to support you locally.

4) How considerably is your LMI method?

Ship me the crane model, hook quantity, doing work conditions(Luffing Tower Working Condition, Pilling) and particular requirement and the like. Your make contact with details is a should.

five) How can I place buy? 
A: You can make contact with us by e mail about your get particulars, or spot purchase on line.

6) How can I spend you?

A: Soon after you verify our PI, we will request you to pay out. T/T and Paypal, Western Union are the most normal approaches we are employing. 

Connected Products

###

###

###

###

###

###

###

###

What Is Limiter Torque?

Whether you’re building an industrial-grade machine or a hobbyist with an electric arc welder, you’ll need a limiter torque to make sure that you’re not over-tightening the machine’s nut. It can be a daunting task to determine what a limiter torque is, but if you’re careful and you use the right tools, you’ll be able to measure it easily.

Shear-pin

Choosing the right type of limiter is important for protecting the expensive mechanisms on your machine. Torque limiters are usually made from hardened steel and are available in a variety of designs. Some are hydraulic while others are pneumatic. They can be mounted in a number of different positions, including horizontal, vertical, and inverted. It is important to select the right type of limiter for your machine before you start squeezing it into a tight space.
A shear pin, or shear-pin, is a shear-shaped metal or plastic pin that is inserted between the mating flanges of two rotating bodies. It may be hard to believe that a small piece of metal can provide a solid connection between the two rotating elements. In fact, a shear pin can provide a rigid connection between the rotating elements of a high-torque drive, such as a motor or a turbine.
The shear-pin’s main advantage is the ability to provide a sturdy connection between the two rotating elements. Shear-pins are especially useful for applications that require a high level of torque and rigidity, such as the coupling of a high-torque gearbox to a crankshaft or a turbine to a turbine rotor.
A ball detent, or BDM, is a common torque limiter device that uses hardened balls to compress a spring to transmit force. These devices are often found on conveyors, textile machinery, and printing machines. Ball detents are usually adjusted by a rotating collar. The ball detent is typically the tiniest of the plethora of limiter devices.
Other possible mechanisms include the aforementioned shear-pin and the more conventional sprockets. Unlike a shear-pin, sprockets are not suitable for coupling applications. In addition, a sprocket’s size is limited to a couple hundredths of a millimeter, whereas a shear-pin may be used in larger sizes. Nonetheless, the shear-pin’s main advantage is that it can be installed in a variety of different locations. This is important for applications where space is at a premium, such as on a conveyor belt or in a textile plant. It is also important to consider the number of pins required. Using the proper number of shear-pins can ensure maximum efficiency and capacity within the confines of a machine’s footprint.

Friction-disc

Typical torque limiters for coaxial shafts comprise a stack of interleaved discs interconnected with torque pins. This allows for a significant increase in the surface area of the discs. It also minimizes bearing and spline wear. The stack of discs is alternately connected to the housing and a second shaft. The rotation of the discs enables the torque load to be transmitted from the input hub to the output hub.
The discs of the stack are supported by an annular ring. This ring receives the spring piston assemblies that engage the discs. The spring pistons compress the springs and force the discs into frictional contacting engagement. This precompression allows for substantially constant force characteristics. The spring piston assemblies also reduce the characteristic force by 10% over the life of the torque limiter.
The assembly has a wear indicator pin 42 extending from the back of the spring pin assemblies. This pin is used to test the torque limiter’s capabilities. It is also indexed with ball detents. It is recommended that you run the torque limiter at 500 revolutions at 50-60 rpm to ensure that the torque limiter performs as expected.
The torque limiter comprises an input hub 72 in communication with an output hub 74. The input hub is typically connected to a power source. It is arranged so that the output hub is aligned with a first end plate 90 coaxial with the output hub. The keeper plate 76 is also attached to the output hub.
The input hub comprises a cylindrical housing 18 with a cylindrical inner separator disc 52 affixed to the drive shaft. The inner disc 52 serves as a separator plate between the disc stack 40. This inner disc minimizes spline and bearing wear and minimizes the torque load required to rotate the discs. The axial thrust load is carried through the housing and is transferred to an annular disc 24. The additional thrust load is carried through the end plate 54.
The outer diameter of the friction discs has tabs that secure the discs to the SLEEVE. A precision machined pilot is incorporated in the SLEEVE for ease of use.

Synchronous magnetic

Unlike mechanical torque limiters, synchronous magnetic limiters transmit torque through thin plastic wall instead of metal shafts. Because of the difference in design, they may have more backlash than mechanical types. However, the torque limiter can be set dynamically and reset automatically, and some are equipped to uncouple the load completely in the event of overload.
There are three types of synchronous magnetic limiters. These are the permanent magnet, the magnetic-particle, and the disconnect types. The permanent magnet type uses mating magnets on the disc faces. The magnetic-particle type is similar to the friction plate clutch. It has a non-ferrous output rotor cup that generates coupling torque through eddy currents. Disconnect type torque limiters include synchronous magnetic, pawl and spring, and shear pin.
Permanent magnet synchronous motors are used for variable-speed drives. They are highly efficient and have low power losses in the rotor. They also deliver quick response and low ripple. A four-pole synchronous motor with 400 W power has a rotational speed of 1500 rpm. It uses a stator of asynchronous motor type Sh 71-4B.
Magnetic-particle torque limiters have a drive side and a driven side. The drive side contains a thin plastic wall that transmits the torque. The driven side contains a hollow shaving-filled housing. It also has loose shavings that rest inside the shaft detents. It can be configured to statically or dynamically set the torque.
Ball detent limiters are also available. These have balls that rest inside the shaft detents. They are usually adjustable by a rotating collar. If over-torque occurs, the balls are pushed out of the shaft detents.
Shear-pin limiters use pins that are embedded in the faces of the disc. When the assembly exceeds the design torque, the pins break. They can’t transmit torque through jams, but they can be secured. They may be set to reset automatically or manually.
Some disconnect torque limiters are designed to have multiple detent positions, but they may have a snap-acting spring that requires a manual reset. They can also be designed to uncouple the load completely in the case of overload.

Maintenance and repair scheduling

Managing maintenance and repair scheduling for limiter torque is a crucial task. Since there is no way to predict when a torque-limiting instrument will fail, a proper maintenance and repair schedule must be used to prevent a sudden failure.
The useful life of a torque instrument is determined by various factors. This includes the design of the instrument, the condition of the instrument during its life, and the conditions of the environment in which the instrument is used. It is also important to have a replacement program and a retirement program for the instrument.
Some of the factors that can affect the useful life of the instrument include wear, lubricant breakdown, and spring relaxation. It is also important to maintain the proper torque on fasteners. This is important for safety and for ensuring the proper driving condition of the vehicle.
In heavy-duty high-cycle operation, proper maintenance is critical. Torque tools are also useful to help mechanics apply torque correctly. The repair manual of each vehicle will have torque values for all of the fasteners. The manufacturer will also publish repair manuals for each vehicle. This will include the torque value for each fastener, along with the proper bolts.
A maintenance and repair schedule should be based on the operating environment and the vehicle application. Maintenance tasks will be listed and intervals will be given. It is also important to consider the skill level of workers involved in the maintenance and repair of the equipment. Some tasks may be more advanced and require highly skilled workers. However, less skilled workers may not be given high-priority tasks.
It is also important to include notes from past technicians and procedures from the maintenance manual. This will help make the task easier to perform. You may also want to contact a third party parts supplier to purchase repair manuals.
To ensure the reliability of your device, you need to use a conditioning cycle before the final calibration. This will increase the reliability of the device and decrease the risk of failure.
Finally, you need to consider how the instrument will perform in the field. This is known as the duty interval. Duty intervals measure the performance of the instrument during the instrument’s life.

editor by czh 2022-12-26