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The great versatility and working speed of the machine partly depend on the possibility of opening the external arm 180°, permitting a fast and easy positioning and, most of all, enabling the machine to continue mowing with the internal disc while the external one, by lifting up, can pass over road or advertising signs that may be present along the way, while automatically interrupting the rotation of the blades. 

Disc position diagram 

A – Right front hitch

B – Left front hitch

C - Right rear hitch

D - Left rear hitch 

Technical data and dimension


GRM60 SPIDER Hydraulic drive guardrail mower with an independent 1000 rpm power take off (540 rpm on request) operated system.

The mower can be attached to the tractor simply with a 3-point hitch, both front and rear, and can work on both the right and left by simply reversing the cutting discs.

Constructed with a sturdy tubular frame weighing a total of 3306 LBs, it is equipped with two side arms that open up to go beyond road guardrails, steel cables, and hedges of maximum height of 66.9 inches, and is able to cut simultaneously from both sides and underneath the obstacle with a cutting width of about 59 inches.

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