Additional attachments for loaders
I-th class – g / n up to 999 kg
II-th class-g / p from 1000 to 2500 kg
III-th class-g / p from 2501 to 4999 kg
IV-th class-g / n from 5000 to 8000 kg
V-th class-g / n from 8001 to 10999 kg
All attachments and lifting plates of loaders are standardized and differ in class depending on the load capacity of the loader:
All attachments and basement plates of loaders are standardized and differ in class depending on the load capacity of the loader:
The moving parts of the attachment are driven by the hydraulic system of the loader. The control of each degree of freedom of the device (“forward” – “backward”) requires the installation of its own hydraulic function (GF) – a section of the hydraulic distributor (a kind of “crane”, but at a pressure of 150 atm) with a handle on the loader control panel and two high-pressure hoses mounted on a movable carriage and connected to the attachment.
The cost of the hydraulic function depends on the lifting capacity, lifting height, and type of loader mast. GF is an expensive thing, and, as a rule, it is not included in the standard equipment of the loader.
The device for lateral displacement of the fork requires the installation of one GF (moving left – right), the roll grip – two GF (compression – unclenching of the paws and rotation clockwise – counterclockwise), for the pin GF is not needed.
Usually, the GF is connected to the attachment by means of threaded fittings, however, if it is necessary to quickly change the fixtures or install forks during operation, the GF may have quick-release couplings. With their help, the high-pressure hoses are easily detached from the attachment, which allows you to remove / install the device in a few minutes.
When choosing a loader, it is necessary to take into account that the use of attachments reduces its load capacity, firstly, because the devices themselves have their own weight (from 70 kg for lateral displacement devices to 800 kg for roll grippers), and, secondly, because of the forward shift of the center of gravity of the load. It may happen that due to the additional requirements for the load capacity, the loader will “move” to a higher class of the baseplate, which will entail a change in the model of the attachment.
