I do believe it is a Hymac. I do know that a company which may still exist (called Halco) used a collection of older Hymac, JCB and O&K excavators as the basis for drilling rigs that were used in the early stages of opencast operations.
Visibility of what's going on within the site confines is extremely limited and I consider myself very lucky to have got these couple of snaps!
So, is this a Hymac by any chance and can it be model identified?
![Image](http://farm9.staticflickr.com/8336/8130957532_9019c4f696_z.jpg)
![Image](http://farm9.staticflickr.com/8043/8130934619_9a9cbdc535_z.jpg)
There's also a couple of older JCB 800-series machines on site. One looks to be a normal excavator, the other has been converted to the same kind of machine as this "possible Hymac". Very curious!
Best regards
Gavin