John Deere has launched three new large square balers to replace its previous L1500 range for the 2020 season.

The three new models are the L624 (70cm x 120cm), L633 (90cm x 80cm) and L634 (90cm x 120cm), and with their launch the single tie knotter 1424 and 1424C balers will no longer be available.

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Standout figures include a claimed 15% productivity rise and a 5% increase in bale weight. A new pre-cutter can be controlled from the cab and has a choice of 0, 11, 12 or 23 knives, while existing rotor options – Rotoflow HC and Maxicut HC – will still be offered.

JD has also improved it moisture sensor which now has a range of 9% to 40%, up from 11% to 34% on outgoing models. All versions will be offered with a 2.3m-wide pickup with 10mm finger rake steel tines.

Internally, the L624 and L634 use a 468kg flywheel which is 64% heavier than the previous models, and hydraulic chamber pressure has been increased by 17%, from 180 to 210bar.

Prices start at £123,948 for the single-axle L633, while the largest twin-axle L634 with Maxicut is £175,785.