There are many variations in the design of quick couplers. The initial difference is between those that can pick up any of a range of attachments, such as buckets, by clamping onto the mounting pins for the attachment. These are known as pin grabbers or pin couplers. There is also a variation that works only with buckets and attachments designed to suit that particular quick coupler, also known as a dedicated coupler. The advantage of pin-grabbers is flexibility in use in that a machine owner can use a variety of buckets and attachments without changing the quick coupler or buying an adaptor. The advantages of dedicated couplers depend on their individual design but often include better performance and smaller size.
These categories are further differentiated between mechanical and hydraulic quick couplers. Hydraulic quick couplers offer and added advantage by allowing the operator to control the quick coupler via an aftermarket control device in the cab to engage and disengage attachments quickly and safely without having to exit the cab. This vastly increases the machine’s and the project’s efficiency, particularly when having to change attachments often or working in inclement weather.
Harford Attachments offers the Uni-lok® hydraulic coupler system – a universal quick coupler that will allow you to fit most attachments. The Uni-lok® quick coupler system is designed for excavators in the 0.75 to 9 metric ton range (1,650 lbs. to 20,000 lbs.)
Solaris also offers hydraulic quick couplers from Solesbee’s Attachments for excavators starting at 1,650 lbs. to any size above.
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