We are proud to now offer the “Wedgelock" Quick Coupler
and the new "I-Lock" Quick Coupler From Wedgelock!


Pin GrabberPin Grabber 2

Pin Grabber 3Pin Grabber 4
LEA Pingrabber Cross Section



Leading Edge Attachments, Inc. is proud to offer the “ Wedgelock Quick Coupler” system. Couplers are available in mechanical latching and remote hydraulic latching versions. Models are available to fit most excavators from 16,000 to 240,000 lbs.

The Wedgelock product range is based around the Wedgelock Quick Coupler that is available in both manual and hydraulic versions. Wedgelock has manufactured this proven design in New Zealand since 1989. Many years of product development and refinement has led to a design that is superior to most other types of Quick Couplers that are available anywhere. All Quick Couplers come complete with Installation and Safe Operation Manuals.

 Quick Couplers are fabricated from a proven combination of materials. All structural components at the top (machine side) are Grade 350 steel that is 40% stronger than mild steel while all components that are in contact with the bucket or attachment are manufactured from High Tensile Steels. Additionally, maximum rigidity is built into the quick coupler through no fewer than five individual lateral cross plates. Wedgelock Quick Couplers have been known to continue operating effectively in tough conditions for over 10,000 machine hours.

Wedgelock Hydraulic Quick Couplers

Wedgelock Hydraulic Quick Couplers are used extensively throughout New Zealand, the Pacific Islands, Australia and UK and are widely accepted as a product of high quality, both robust and reliable. Safety with all Quick Couplers is of paramount importance and Wedgelock Hydraulic Quick Couplers have more safety features than most. The Wedgelock Hydraulic Quick Coupler is one of only a handful of Quick Couplers that exceed stringent OSHA regulations in Australia. Additionally, the Wedgelock Quick Coupler has met stringent CE Certification requirements for the European market.

A wedge shaped locking tongue plate is actuated by a Hydraulic Cylinder which maintains constant locking force on the attachment pins, at the same time adjusting for wear as it is used.  Because Wedgelock Hydraulic Quick Couplers have minimal moving parts, they are easily maintained and consistently withstand over ten thousand hours of trouble free use.

 Safety Features – Wedgelock Hydraulic Quick Coupler

 All Hydraulic versions of the Wedgelock Quick Coupler contain double acting cylinders and pilot check valves that add to the safety of the Wedgelock locking mechanism.  A pilot operated check valve ensures oil pressure is locked into the cylinder at all times while in use.

The additional safety feature built in to the design is the Mechanical Wedging effect created by the tongue plate on the attachment pin. Field-testing of this safety feature has been very conclusive to the point where attachments have stayed secure on the Quick Coupler with no oil pressure in the cylinder. 

It is recommended that Wedgelock Hydraulic Quick Couplers be connected to the Mains pressure pumps through a factory set pressure-reducing (1800PSI) valve. The electrical circuit incorporates a switch and audible warning buzzer to indicate when the tongue plate is unlocked. This feature further removes the possibility of an attachment disconnecting from the Quick Hitch inadvertently.

Additional safety features in the design for the USA market, includes a visual indicator bar and a mechanical “Drop Lock” for ultimate safety in the extremely unlikely event of an attachment disconnecting from the quick coupler.

  Safety Features – Wedgelock Mechanical Quick Coupler

As with the Hydraulic Wedgelock Quick Couplers, the mechanical version has a fully adjustable locking device. The wedge-shaped locking tongue plate is actuated by a large threaded actuator which maintains constant locking force on the attachment pins, at the same time adjusting for wear as it is used. The threaded actuator is simply adjusted up tight against the attachment pin with a ratchet spanner. The locking action of the actuator ensures that all movement is eliminated, minimizing the possibility of wear problems. A sealed capsule covers the threaded actuator to protect it from damage, and it is greaseable in several places.

Also featured in the design is a Patented anti – loose locking nut that controls the rotational friction of the threaded actuator to stop any backing off. This anti – loose locking nut can easily be adjusted with a couple of tools as part of the routine maintenance check when and if required in future.

For use with severe vibration attachments such as rock-breakers, a removable locking tab can be fitted to eliminate any loosening of the wedge-locking plate.

And now we are also proud to now also offer the new
“I-Lock" Quick Coupler by Wedgelock!

Wedgelock Pingrabber Coupler
Wedgelock Pingrabber Coupler
Wedgelock Pingrabber Coupler
Wedgelock Pingrabber Coupler

Wedgelock Hydraulic Quick Couplers

Image on the right was taken in the shop of our affiliate partners,
Wedgelock LTD, of New Zealand,
of a new PC1000 Wedgelock Coupler mounted on a
Wedgelock manufactured Multi-Ripper, ready to ship to a customer

Wagmann Wedgelock pingrabberMulti-Ripper and Wedgelock Coupler

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(C) Copyright ; 2002-2007 LEA, Inc.; All rights reserved.
Revised: May 7th, 2007