Versatility - High Work Rate - Trouble-free Operation
The Keenan Orbital Spreader is a heavy-duty versatile spreader. It is capable of very high work rates, trouble free operation with a wide range of farm and commercial wastes, and delivers a remarkably uniform spread pattern.
SIMPLE DESIGN AND OPERATION
The basic design of the Orbital is as simple as it is innovative; consisting of a semi-cylindrical tank, rear pushing door and large flywheel at the front.
A heavy-duty hydraulic ram attached to the sliding rear door (Fig. 1) pushes the material from the back of the machine towards the rapidly spinning flywheel. Forward speed of the rear door is adjusted by a hydraulic valve(Fig. 2), thus allowing application rates to be easily altered. Once set at the desired level, material is fed at a consistant rate to the flywheel, ensuring a smooth consistant spread of material. The flywheel consists of a solid steel disk with 6 paddles (Fig.3), 1.8m in diameter, rotating at 170 rpm and a central counter-rotating spinner. The action of the flywheel first sheds the material before propelling it through the side opening, where further pulverisation is provided by adjusting the breaker tines (Fig.4) at the exit. Unloading takes no longer than 1.5 to 5 minutes (depending on material) with the tank being left completely clean and ready for the next load. During loading and transporting, a slurry door (Fig.5) seperates the main chamber from the flywheel so that liquids can be easily handles and starting torque is kept low. Power to the machine is applied through a heavy-duty T80 PTO shaft, featuring shearbolt and over-run protection. LOW POWER REQUIREMENT For a machine with such high work rates and large compacity, the power requirements is relatively low at 120Hp. Liquid materials require slightly less power. EXCELLENT WEIGHT TRANSFER
Unique to the orbital is the fact that weight transfer of the material is from the rear axle to the drawbar, as opposed to more traditional spreader designs that move the load onto the rear acle. This design coupled with low ground pressure 16 ply flotation tyres and wide spread width (20m) ensures minimum soil compaction and maximum traction at all times. FLEXIBILITY TO SPREAD ALL TYPES OF WASTE
The orbital accurately spreads a wide range of materials including; lagoon slurry, strawy muck, industrial sludge and poultry manure. The sealed nature of the body ensures that sloppy material is transported and spread without leakage. Long strawy or fibrous material such as fresh yard much is easily handled by the orbital. Centrally mounted on the flywheel is a spinner that is driven in the opposite direction. This shreds material before the flywheel propels it outwards. For very high dry matter material extra bolt on knives can be added. ROBUST SPREADING MECHANISM
The robust flywheel design easily handles small blocks and stones often found in muck and has been engineered not to gather twines or plastics, so as not to impair performance. RELIABILITY AND EASE OF MAINTENANCE BUILT-IN
With only four main moving parts and legendary Keenan build quality, there is little to go wrong with the Orbital. The heavy-duty single drive chain is easily acessible from the front of the machine (Fig.6) and is not in contact with the material being spread. All bearings are situated outside the chamber to prevent damage by twine, much etc. The hardened wear plates on the flywheel paddles are easily reversed or replaced. The heavy-duty rubber seals on the slurry door are maintenance free and the seals on the pushing door can be easily adjusted or replaced when necessary. MULTIPURPOSE MACHINE - NO NEED FOR OPTIONAL EXTRAS
The Orbital features an impressive list of standard features including slurry door, hydraulic breakes and lights, ow ground pressure tyres and an electronic boost for faster compaction of the load. Giving the Orbital the versatility to spread most types of Material without the need for costly extras. AWARD WINNING DESIGN
The innovative and proven design of the Orbital has been recognised by the Royal Agricultural Society of England (RASE) who have awarded the Orbital a Silver Medal.
The judges found the Orbital to have a massive work output, each one replacing three or even four earlier spreaders. Spread pattern was described as superb with no blockages or briging, low soil damage and outstanding reliability. Individual working machines inspected were handling tens of thousands of tonnes a year without breakdown. MACHINERY SERVICE
All technical service for the Orbital is handled directly by the company through a series of service points throughout our markets. As with the reknowned Keenan mixer wagon, rapid response to any technical query and immediate help with any mechanical problem is assured at all times.  
Fig.4 Fig.6 | 
