EOT crane of Dongqi for sale

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Smart features of electric gantry crane from Dongqi Crane

1. Strict and high profile manufactured standard. Adapted the advanced technology of European, our EOT overhead crane are strict control in every production line. All our EOT overhead crane and components are produced on the basis of DIN and FEM. A series of test service will be offer before our customer buying.
2. Lightweight design. Our motorized overhead crane is the result of over one century’s hard working and consistent innovation. Compared with the traditional technology, the electric overhead crane is lower with a decrease of around 25% and less with almost 30%, as well as owns lighter wheel pressure and quite small critical distance.
3. Modular design. There are much advantages can be get though a modular design. Such as the richer product assortment, easier installation and transportation, as well as the stable product quality and shorter supply cycle.
4. High security. Equipped with so many safety devices, our EOT overhead crane holds the most safety. These advanced safety protection includes the monitor system of overload limiter, the self-examine system, limit switch, and imported wire rope from Germany.

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Safety devices on our overhead crane

1. Moment limiter. A moment limiter is made up of power detector, arm angle detector. When the lifting capacity of overhead crane reach rated value, a moment limiter can prevent a magnetic overhead crane from overturned timely though special signal and red light to warn the operator to stop working.
2. Position limiter. This device is designed to avoid the arm of overhead crane touch winch. When the arm of an overhead crane reach the biggest angle, position limiter can warn the worker by raising the alarm.
3. Outreach indicator. Put up an indicator panel on the arm of overhead crane to show various lifting weights under different scopes.
4. Air level. An air level can control support leg to keep the stable of overhead crane by measure chassis’ all-direction levelness of overhead crane.
5. Locking support leg rebound device. It can precisely lock the rebound support leg.
6. Rotary location device to keep a certain get on place.
7. Back-up alarm device. When an overhead crane reversing, this equipment can make alarm warn by voice and light.
8. Moving parts shield to avoid the risk that the moving parts on overhead crane hurt workers.
9. Electrical equipment rain covers to protect the electrical kits on overhead crane in case its performance is affected by rain

Several requirements of safety device on overhead crane

1. Several test asks on loading limiter

When examine whether the loading limiter is designed according to paint or not, you should notice these two aspects in the following.

First, you should control the error between the count on screen and the real figure at a range of no more than 5%.

Second, once the lifting capacity arrive at the 90% or even 95% of the rated load lifting capacity, related safety device will alarm to warn the operators. In the similar way, when the lifting capacity reach the 100% of related load weight, the loading limiter has to cut off the power on the part of hoisting direction, at the same time, the entire overhead crane equipment should do the downward motion.

Plus: there is no requirement about a jib crane that has to alarm, the working point on this crane is 108% of rated load weight.

2. Several announcements on the test of overhead crane

First, the error comes on lifting capacity has to in the area of 1% of specified standard.

Second, in the process of test, all operations should be done on the basis of “installments and operating instruction”and related safety operation regulations.

Third, the entire test adjust and examine should be done in the state of stop working, at the same time, the operator should cut down the general power on overhead shop crane.

Forth, a long time no less than one month in the test, this overhead crane can’t be used, as well as company has to take certain measures to protect this material lifting machine against wind.

Fifth, the operator should consider all the accidents that might happen, and make up of certain effective measures to ensure the safety of all workers.

Sixth, it will be a better way to establish a test group, all the working in this test unified command to make sure the whole test is organized in an order way.

3. Some tests on the overhead crane

First is the strength test on steel structure. Aimed at a new 25 ton overhead crane, the owner has to examine it according to the largest stress zone confirmed by document. And then put forward the analyses result, as well as present sole experiment export, making a detail and precise conclusion.

Second, explosion proof performance test. Under the condition of not any lights, run all parts of this overhead crane on the range of rated load weight, and notice whether there is any spark taken place.

Third, the other test items associated with the crane safety and using performance has to fit for the requirements of design and utilization.