LANDSCAPING
Towed Laser Grader
Information
Towed Laser Grader
The Mumby range of towed laser graders are manufactured to a high standard and robust construction for working in demanding conditions – with very little maintenance required. All graders are equipped with twin Danfoss proportional valves for accuracy and smoothness of operation – the grading accuracy is within + or – 2mm – Dual grading (X and Y axis) is standard via the rear 4-wheel depth control wheels and hydraulic raise and lower cylinders – all models are available with ripping tines (optional) (adjustable for height and shear bolt protected). The cutting blades are made of hardened steel and bolted for easy replacement, the height adjustable heavy-duty drawbars attach to all makes and models of tractors (hydraulic lift-up and down versions are optional). All graders can be painted in the customers choice of colour and are available with the Futtura laser kit.
Information
Features
- High accuracy Danfoss proportional valves
- Dual grading standard
- Available with or without hardox ripping tines
- Hydraulic raise and lower 3-point linkage drawbar (optional)
- Rear 4-wheel depth control – with each pair of wheels controlled by individual hydraulic cylinder
- Available with complete laser kit package (optional)
- Fold up drawbar for transporting
INFORMATION
Working Principle
All towed laser graders work on the same principle as follows: A laser rotating transmitter is set up on a tripod within the work site, and sends a laser beam towards two receivers mounted on poles on each side of the grader, and with the blade resting on the ground – The two receivers are set at the height of the laser beam – Mounted on the grader is a special electric/hydraulic valve system which receives constantly hydraulic oil from the tractor pump – a control box (mounted in the cab near to operator) is connected to the valves (2 off) which in turn control two hydraulic cylinders which raise and lower each pair of wheels automatically to the required level set by the laser beam height – the laser system is accurate within + or – 2mm – The Mumby Laser Grader can also dual grade – i.e.: grading in two opposite directions automatically. For further information please contact Mumby Machinery Ltd technical department 01778 346222
