The harvesters in the W and T series by John Deere all straw walker combines. In 2016 John Deere updated these two series in a major overhaul, this included the W650. It continues to be the second-largest model in the W-series. The John Deere W650 comes equipped with a 6-cylinder engine with a 9-litre capacity and turbocharger. This engine brings the thresher to a maximum power of 250 k/W (340 HP). The new 2016 models of the John Deere W650 meet the Tier 4 emission standard, the models prior to 2016 only meet Tier 3. The feeder house used in the W-Series models remains unchanged. It ensures an even crop flow and is equipped with a 80 HP reverser. In the John Deere W650, the threshing takes place in a drum with a diameter of 660 mm and a width of 1,670 mm. Threshing and separating drums already provide for very thorough separation, thereby relieving the subsequent screens.
The 650W has six shakers with eleven drop steps, so the overall shaker surface is 7.7 m2. A special feature of the straw-walker combines by John Deere is the Power Separator, which has 18 multi fingers. It ensures that the John Deere 650 W (and other models of this type) are able to loosen the matted straw, even when the crop is wet or particularly dense. The standard grain tank holds 9,000 l and can optionally be extended to 11,000 l. The discharge capacity is 88 l/s. In the John Deere W650, the chopping duties are assumed by 68 blades and 54 counter-knives. From 2016, the W650 combine has been delivered with a soil-protecting crawler drive, which enables a maximum speed of 40 km/h. In this way, channel times are reduced and there is a clear improvement in the time-efficiency of the work.