Chain hoists are employed for lifting and lowering freely moving loads. As a lifting device, the chain hoist supports, for instance, ergonomic lifting during assembly work as well as makes this possible in the first place. Conveyor technology or crane systems are further examples of the usage of chain hoists.
Like all hoists, chain hoists are at the mercy of recurrent testing relative to the task equipment directive (2009/104/EG) of the EU. If the overload protection is also mechanical and designed in the form of a friction clutch, only the FRKPS from WIKA can be considered for the test. In the abbreviation FRKPS the ?F? stands for ?Force? which identifies the device as a force transducer. The ?RKPS?, which follows, abbreviates the German ?Rutschkupplungspr�fset? (friction clutch test set).
Chain hoist test set, also for section steel chains
The friction clutch on chain hoists ought to be checked regularly to ensure the safety of people and machines. Additionally Break is important to make sure that the reliability of the application form is always guaranteed. Minimal downtimes and zero-maintenance and service outlay will be the goal. The DGUV (German social accident insurance) also stipulates that lifting equipment should be checked regularly. However, users can save themselves the awkward handling of weights by using the FRKPS chain hoist test set. That is also ideal for chain hoists with chain links made of section steel.
Principle of operation of a chain hoist test set
The FRKPS consists of a force transducer, a display unit and the guide sleeves suitable for the respective chain thickness. So as to check the release force of the friction clutch, the force transducer is hooked in to the chain together with the appropriate adapter sleeve. Then they move upwards together contrary to the bottom of the chain hoist and block the chain. The force transducer measures the maximum force until the friction clutch is activated and transmits this value to the display unit. An individual can read it off easily there. Up to 99 data sets can be saved. This eliminates the major effort required whenever using test weights.
Scope of performance of the chain hoist test set
The force transducer covers a measuring range from 40 kg to 3,500 kg. In order to be able to use the FRKPS in rough environmental conditions without any problems, the force transducer meets the high ingress protection of IP67. The best possible insensitivity of the force transducer to parasitic forces and moments is ensured by the design as a shear beam load cell. The display unit can also be easily operated with gloves because of large buttons. The complete system comprising force transducer, two adapter sleeves for section steel chains and display unit is delivered in a practical and sturdy case. The FRKPS chain hoist test set combines simple operation with robustness for friction clutches on chain hoists.
Note
Further information with this topic are available in the flyer ?Test set for checking friction clutches on chain hoists?. Information on our model FRKPS chain hoist test set are available on the WIKA website.