Claas has added several Evolution models to its existing 4200 and 5000 series Quadrant square baler range that are equipped with a new pick-up and redesigned bale chamber to improve performance.

The HD pick-up on the Evolution balers has strengthened bearings and intake panels, and borrows components from the firm’s Jaguar forager front attachments.

As a result, wear costs are said to be low, running is smoother and noise levels have been reduced.

See also: How to get a big square baler ready for the new season

The mechanically driven pick-up now has five rows of tines instead of four and 18 double tines a row, increasing throughput and raking quality.

The extra row allows it to rotate slower, while the speed of the power feeding system roller has been increased.

To handle higher throughput, Claas says the diameter of the pick-up main drive shaft has been enlarged, while semi-automatic chain tensioning delivers more reliable drive.

The firm has also added an auto-lube system with 6.3-litre oil reservoir as standard to reduce maintenance time.

Chamber tweaks

In the chamber, the top plate and side panels have been redesigned and strengthened to produce a better bale shape and slightly higher bale density.

There are factory-fitted side knives and deflectors that limit the build-up of crop residue around the rams when baling, improving safety and reducing cleaning efforts.

The knives help to keep the sides of the bale smooth too, with no unsightly ridge left by the ram bearing channel.

Claas engineers have also increased the response time of the automatic baling pressure control system, so it is more sensitive to twine tension or load in the intake area.

New HD ram bearings on both sides of the pick-up and cam tracks simplify maintenance, and total cost of ownership of the Quadrant Evolution models has been reduced – the company says a 40,000-bale test in tough conditions showed the new design to reduce wear by up to 40%.

Operator aids

A modified twine box on Evolution models apparently makes life easier when stringing up, with twine guides swinging out and locking into position.

That means that twine can be threaded when standing beside the machine, with twine brakes adjusted from the same position without any tools.

A new option that will also save time and effort sees operators able to open and close the bale ramp and eject bales from the comfort of the cab.

The control system for the Quadrant Evolution – accessed through Cemis 700, Cebis or other Isobus-compatible terminals – has been simplified, with two working menus and three settings menus providing a better overview and quicker navigation.

In auto mode, the machine capacity utilisation is displayed based on average bale weight and baling pressure.

Improved visibility comes from an optional Profi Cam 4 camera, which monitors the knotters, bale chute and the entire area behind the tractor.