The operation and application of medium and big square balers: Part 8
Introduction to the big square baler by GJ Stoltz (Reg Eng Tech)
B
igger is better when it comes to commercial hay production for large herds. Bigger bales are not only more cost effective, but also less labour intensive as larger volumes can be handled at a time. When it comes to transport, the big square bale is the most economical option due to its weight to volume ratio which enables haulers to make the best use of a vehicle’s payload. The big square baler is ideal for the large-scale farmer and contractor. They have a high output with a high bale density that is essential for profitability. Some of these balers have two land wheels and the bigger ones have four. The baler trails right behind a tractor and picks up the windrow that passes
Different models are available and their bale dimensions also differ. It is a big machine and very sophisticated. Only the basic features will be discussed in this article. For more information it is advisable to consult the appropriate operator’s manual.
Photo 6: The front of the baler rests on a retractable support jack. The drawbar is height adjustable. The tubes for the different hydraulic systems are connected to the tractor.
Photo 3: A big bale with high density is produced.
Photo 1: Baler with two land wheels. The bale chute is pointing upwards for transport purposes.
Photo 2: Baler with four land wheels. The bale chute is pointing downwards for baling purposes. through between the rear wheels of the tractor. The picked up hay then passes through the baler in a straight line and drops off at the back as big high density bales.
Photo 4: When turned on its side, the bale can easily be pushed through a single door.
Photo 7: The PTO drive shaft is connected to the PTO shaft of the tractor and drives the flywheel, via a slip clutch.
Augers Central gearbox
Packer fingers Ram Rotary packer Knotter
Flywheel
Operational features: This type of baler has a high capacity and can produce bales of the following dimensions: Height: 80 cm Width: 120 cm Length: 90 to 250 cm 20
Photo 5: A side view of a big square baler, showing some of the main components.
ProAgri Zambia 53
