According to reports, the construction of open pit mining, water conservancy and electric power facilities and other infrastructure projects, the use of electric excavator equipment, the current use of excavators in China, the electric drive and control system is basically a traditional F-D machine and the adoption The thyristor generator excitation speed control system of magnetic or electronic trigger has the disadvantages of large impact on the power grid, severe waveform distortion, high impact on the motor and mechanical components, high energy consumption, long response time, and “excavator characteristics†hardness. Poor, heavy equipment, loud noise, and large maintenance, seriously affecting equipment integrity and production efficiency.
The all-digital DC speed control device is based on the M drive module produced by British CT Company, and cooperates with the PLC program controller. The whole control system adopts software instead of hardware to reduce the hardware wiring and fault points, improve the anti-disturbance and control. The signal is processed by a 32-bit microprocessor, and the parameters are quickly accessed through the panel to achieve control, monitoring, and protection functions. The system has fault diagnosis capability, which can reliably and effectively protect the motor. When the system fails, it can be quickly eliminated according to the prompt function, ensure the continuity of production, reduce the maintenance time, improve the operation rate and mining efficiency, and increase the output.
Thanks to the elimination of high-voltage asynchronous machines and generator sets, noise and vibration are greatly reduced and the working environment is improved. The drive consists of a main board, a power amplifier board and power components. The main board and the power amplifier board can be used in a variety of bucket shovel, so that the spare parts ratio of the whole system is less than 3%, and energy consumption can be saved.
About Polyester Slings for Lifting
Polyester is a synthetic (man made) material that is extremely light weight and when made into lifting slings makes a very little cost effective lifting sling. The material is soft to touch (hence soft slings) and therefore is less likely to cause damage to the goods when they are lifted and will not cause the type of injuries to the user associated with Wire Rope Sling, for example cuts caused by broken wires, manual handling or impact injuries. Synthetic polyester (fiber material) slings are much lighter weight than both wire rope or chain slings and therefore this type of lifting sling is much easier to handle.
It is include Webbing Sling
Round Sling
Application
How to use slings
1. Never use slings with damages or defects.
2.Use slings with clear identifications.
3.Check working load Limit ,length and working position
4.Never use slings with knots.
5.Never use slings on sharp edges without correct protection .
6.Use the correct mode factor and check lifting angle.
7.Trapping the sling when lowering the load should be avoided.
8.The temperature should be between -40℃ and 100 ℃.
9.Stitching should not be placed over hooks or others lifting devices.
10. Sling should be stored in dry and clear conditions .Away from heat sources, direct sunlight and UV rays.
11.In case of chemical environment ,please check with the manufacturer.
12.Elongation rate <3% at working load and <10% at breaking load
CAUTIONS
1. Do not exceed working load limit
2. Prevent shock-loading.
3. Where selecting a sling it is very important to consider the angles at which the sling will be used.
4. Slings are subject to cutting when lifting items with sharp edges. In this case always use wear sleeve
5. Do not use a damaged sling.
6. Never make knots in a sling.
7. Never drag a sling from underneath a load that is resting on it.
8. Chemical active environments can affect the strength
9. Always store slings in a cool dry and dark place when they are not in use for prolonged periods.
10. Always read and understand the operating instruction before use.
Reliable Sling
Since 2007
Specializing in webbing slings, towing strap, Ratchet Tie Down.
Consecutive sales increasement of 10 years
Passed the ISO9001:2008 and international certificate as CE, GS and TUV etc.
Provide OEM and ODM service to overseas customer
Export to more than 40 countries, mostly in European countries, America, Africa, Middle-east.
Our mission is to create high-quality, high-end products, allowing customers to use more convenient, more secure, more assured.
Our Services
1.We treasure and try to understand all the different needs of our clients and seek to forge a long term professional relationship with them. The satisfaction of each and every customer is our main goal and motivation in conducting our business.
2.Our products are of high-quality standards and always come with the certificate of compliance by the manufacturers. There is the strict quality control for each of our products.
Lifting Belt
Lifting Belt,Lifting Belt Sling,Polyester Lifting Belt,Lifting Sling Belt
Hebei Liston Lifting Rigging Manufacturing Co., Ltd. , http://www.liftingriggingfactory.com