Heat, dust, long hours and the pressure to get the crop up before the weather turns make baling one of the most grueling jobs in agriculture. The ZR-2200 self-propelled baler with the Z604S bale chamber was built around the operator, engineered to make every hour in the field easier. 

When Vermeer introduced the ZR5-1200 in 2017, the world’s first self-propelled baler redefined haymaking. The machine brought comfort, speed and zero-turn maneuverability to the industry in ways that had never been imagined before. It’s why it was named the ”Coolest Thing Made in Iowa”  by the Iowa Association of Business and Industry (ABI) in 2024. 

The ZR-4S carries that legacy forward as the 6-ft by 4-ft (1.8 m x 1.2 m) evolution of the platform, pairing the ZR-2200 power unit with the Z604S bale chamber to bring the same premium baler experience to more of the country. Built for high-volume hay producers, the ZR-4S is engineered to keep pace with the season without wearing out the person in the operator’s seat.  

Vermeer design engineer Ben Peterson said the challenge of succeeding the ZR5-1200 was less about making another “cool” product and more about making good on years of anticipation.  

“Many of our 4-ft-wide (1.2-m-wide) baler customers have been waiting for this machine since the release of the ZR5-1200,” he said. “We had to get it right the first time and make advancements to meet the high expectations of our customers wherever we could.” 

Here’s a closer look at the ZR-4S cab features and baling capabilities that made it worth the wait. 

Built for comfort across long days in the field

Peterson credits the ZR5-1200 as a solid blueprint for the ZR-4S.  

“So many things were done well with the ZR5-1200, so continuing to refine those aspects of comfort, efficiency and ease of maintenance and operation were always top of mind,” he said. “With the ZR-4S, we wanted to increase operator comfort for those long days in the field.”  

The ZR-4S cab features a patented design that places the premium cab directly over an independent suspension, absorbing the shock in the field so the operator doesn’t have to. An ergonomic joystick and convenient toggle switches keep the most common operator controls and adjustments like automation, zero-turn activation, bale density, bale size and number of net wraps at your fingertips. Rubber-coated foot pegs on the steering column give operators a place to settle in for the long haul. 

For the moments between bales? Five cupholders and a refrigerator tucked under the instructional seat mean food and drinks stay cold and within reach. The smallest details add up across a long day. 

Cab visibility features that help you see every bale without turning around

One of the biggest culprits of operator fatigue is the constant need to turn around and check on the bale behind you. The ZR-4S was designed to keep your eyes forward without missing a thing. 

Large cab windows and the ability to sit directly over the windrow give operators an unobstructed view of material entering the pickup. It’s a significant advantage for windrow following and bale feeding. Wider, larger powered mirrors on the ZR-2200 power unit help you see behind and around the sides of the machine. 

Two cameras show your work in real time. A pickup camera mounted under the cab displays material flow into the pickup directly on a screen. The tailgate camera shows bale ejection, eliminating the need to turn around when it matters most. Operators can also use the tailgate camera for transport visibility when moving between fields. 

How zero-turn and quarter-turn help you turn faster and place bales efficiently

Most balers require wide, sweeping turns between windrows, which eats up time, fuel and field. The ZR5-1200 changed that when it introduced zero-turn to the self-propelled baler world. 

Counter steer on the ZR-4S allows the rear tires to spin in opposite directions, so the machine pivots cleanly in place. It’s like a zero-turn lawn mower, but for a hay field. There’s no backing up and fewer ruts. The operator stays on the windrow and gets to the next one faster, which adds up across a long day of baling. 

The quarter-turn feature builds on that. When it’s time to eject a bale, the machine automatically rotates 90 degrees — left or right — places the bale parallel to the windrow, then swings back into position ready for the next pass. Bales land in tighter, more organized groups, which means less time and fewer trips for pickup. 

Automation and in-cab controls that reduce operator workload

The ZR-4S automates the repetitive parts of the baling cycle to reduce the mental and physical load on the operator. 

For instance, the machine stops automatically, ties the bale and cycles the tailgate from open to close. When quarter-turn mode is active, it rotates 90 degrees to place the bale parallel to the windrow before returning to position. The pickup raises, shuts off and lowers automatically to help protect components without requiring operator input. When the next bale is ready, the machine is already repositioned and waiting. 

The 10.4-in (26.4-cm) color touchscreen delivers real-time machine data throughout the day, allowing operators to adjust bale shape, net tension and density without leaving the cab. Operators can monitor key performance and machine conditions at a glance, including moisture readings in the bale chamber, bale shape indicators, pickup rpm alerts that help flag potential plugs early and a live bale weight feed. 

TempSense™ adds another layer of awareness by monitoring temperatures across 16 high-stress bearings. By tracking heat buildup in critical areas, operators can spot potential issues earlier and make informed decisions before they impact uptime. 

Durability and uptime features that keep you baling longer

“Operators will be using the ZR-4S nearly every day for months at a time, so comfort needs to be top of mind. But summer baling conditions are not easy on any piece of equipment, and sacrificing durability is not an option either,” Peterson said. “The Vermeer team chose to maximize both.” 

Fourteen LED lights keep the work going after dark, with dedicated lights on each door, the pickup and the netwrap hood for maintenance visibility. The bale chamber detaches completely from the power unit, or operators can use cleanout mode, which tips the chamber back without disconnecting hydraulics, for faster end-of-day cleanup. An optional front-mounted toolbox carries up to three extra netwrap rolls and field essentials so you’re not making unnecessary trips to the shop. 

Auto Lube automatically greases high-load bearings at user-defined intervals, with low-grease alerts in the cab. VermeerOne™ platform monitors machine health remotely — location, fuel consumption, engine hours, fault codes — accessible by the operator or their dealer from anywhere. 

Vermeer ZR-4S self-propelled baler built for comfort, control and productivity

Peterson said all of these touches add up to a better operator experience: “Even the smallest things, such as the addition of cleanout mode and easier in-cab controls for making baler adjustments or turning on headlights, make a big difference in the daily grind of putting up hay.” 

The ZR-4S self-propelled baler cab was designed from the start for the operator, because the premium baler that keeps you comfortable, informed and in control is the machine that gets more done. As the 4-ft (1.2-m-wide) evolution of the award-winning Vermeer ZR5 platform, the ZR-4S cab features industry-leading automation and comfort that bring a new standard of baling to hay producers without compromise. 

To learn how the ZR-4S can fit your baling operation, talk to a local Vermeer dealer today.

Vermeer Corporation reserves the right to make changes in engineering, design and specifications; add improvements; or discontinue manufacturing at any time without notice or obligation. 

Equipment shown is for illustrative purposes only and may display optional accessories or components specific to their global region. 

Please contact your local Vermeer dealer for more information on machine specifications. 

Vermeer, the Vermeer logo, Equipped to Do More, TempSense and VermeerOne are trademarks of Vermeer Manufacturing Company in the U.S. and/or other countries. 

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