Buying a Vermeer 604 S-series 4-ft baler? What hay producers should know

July 2026

When hay is ready, a round baler has to do more than keep up. It has to help you make bales worth feeding, stacking, storing or selling.

The Vermeer 604 S-series lineup helps do just that.

How? First and foremost, the Vermeer 604 S-series lineup helps hay producers match the baler to the work. The 604S Rancher, 604S Signature and 604S Premium combine camless pickup designs, in-cab density adjustments, field data through the Atlas Pro™ control system and features that help operators shape consistent, square-shouldered bales.

If you’re comparing a 604S baler, researching a 6×4 baler or looking specifically for a Vermeer 4-ft (1.2-m) baler, start here.

What is the Vermeer 604 S-series baler lineup?

The Vermeer 604 S-series is a lineup of 4-ft (1.2-m) round balers that includes three models: the 604S Rancher, 604S Signature and 604S Premium. Each model is built to help producers make consistent, square-shouldered bales, with different levels of features, controls and automation.

The lineup gives producers a way to match the baler to the work:

604S Rancher: A straightforward 4-ft (1.2-m) baler built around convenient operation, simple adjustments, reliability and durable components like a hydraulic bale ramp and camless wide pickup.

604S Signature: A 4-ft (1.2-m) baler built for convenient operation, straightforward maintenance, reliability and durable components throughout.

604S Premium: A 4-ft (1.2-m) baler built for producers who want more productivity features, improved density and capacity and automation that helps keep the baling process moving.

Interested in a Vermeer 604 S-series baler? Contact your local Vermeer hay equipment dealer.

Why does bale density matter when buying a 6×4 baler?

Bale density matters because it affects bale weight, shape, handling, storage and hauling. The Vermeer 604 S-series gives operators in-cab density control, so they can adjust to crop and field conditions from the tractor seat.

As the bale forms, the density system applies consistent belt pressure to help build dense, square-shouldered bales. Bale shape indicators also show operators whether the bale is building evenly before it leaves the chamber.

That control matters when conditions change. Operators can adjust density, monitor bale formation and make decisions before the tailgate opens.

How does the Vermeer 604 S-series help producers stay productive?

The Vermeer 604 S-series helps producers stay productive by putting more control and more field information within reach. All three models offer in-cab density adjustments, so operators can respond to changing crop and field conditions without leaving the tractor seat.

The Atlas Pro control system also gives operators real-time field information. On the 604S Rancher, operators can view and track statistics for up to 50 fields, including bale count and bales per hour. On the 604S Signature and 604S Premium, operators can track real-time statistics for up to 50 fields, including average moisture, bale count and bales per hour, while also adjusting bale shape, number of net wraps and density from the tractor seat.

For producers who want more output, the 604S Premium is positioned to help deliver more bales in a day with improved density and capacity.

What features help reduce maintenance on a 604S baler?

A 604S baler is built with pickup and maintenance features that help producers spend more time baling and less time working on the machine.

The 604S Rancher uses a 4-bar camless wide pickup designed to help minimize maintenance and prolong machine life. The 604S Signature and 604S Premium use a 5-bar camless wide pickup with 70 rubber-mounted pickup teeth for added strength and durability in varying crop types and conditions.

Poly riser stripper bands help promote crop stripping and minimize pickup wrapping. The lineup also includes a 3-year pickup warranty on internal components, including parts and labor. Teeth and hardware for teeth are not included.

Depending on the model and configuration, producers can also add or get features that support service and uptime, including an Auto Lube greasing system, LED maintenance lights and a net lift system. Auto Lube is optional on the 604S Rancher and 604S Signature and standard on the 604S Premium. LED maintenance lights are optional on the 604S Rancher and 604S Signature and standard on the 604S Premium.

What is the Atlas Pro control system?

The Atlas Pro control system is the in-cab control system for Vermeer 604 S-series balers. It helps operators track baler performance, monitor field information and adjust key settings from the tractor seat.

On the 604S Rancher, Atlas Pro lets operators track real-time statistics for up to 50 fields, including bale count and bales per hour. On the 604S Signature and 604S Premium, the system also displays average moisture and lets operators adjust bale shape, number of net wraps and density from the tractor seat.

On certain models with real-time scale options, Atlas Pro can also provide bale-to-bale weights. That helps producers track whether they are making the bale size or weight they need for their feeding operation.

For producers who want field records, in-cab control and fewer trips out of the tractor, Atlas Pro gives operators one place to monitor and adjust key baling information.

Does the Vermeer 604 S-series have moisture monitoring?

Yes. Moisture sensing is available across the Vermeer 604 S-series. Moisture sensing is optional on the 604S Rancher and standard on the 604S Signature and 604S Premium.

The system provides real-time and field-average hay moisture information through the Atlas Pro control system. That helps operators understand crop conditions from the cab while they bale. through the Atlas Pro control system. That helps operators understand crop conditions from the cab while they bale.

Which Vermeer 604 S-series baler should I buy?

The right 6×4 baler depends on how you bale, how many features you want and how much in-cab control matters to your operation.

Choose the 604S Rancher if you want a 4-ft (1.2-m) baler built around the essentials: convenient operation, straightforward adjustments, durable components and reliable performance bale after bale.

Choose the 604S Signature if maintenance, convenience and durability sit high on your list.

Choose the 604S Premium if you want added productivity features and automation.

If you’re not sure which model fits your tractor, crop conditions or bale count goals, your local Vermeer ag dealer can help compare the 604S Rancher, 604S Signature and 604S Premium.

What are the key specs to know before buying a 6×4 hay baler?

Here are several numbers to know when comparing the Vermeer 604 S-series balers.

3: The 604 S-series includes a 3-year pickup warranty on internal components, including parts and labor. Teeth and hardware for teeth are not included.

4: The 604 S-series makes 4-ft (1.2-m) wide bales.

36 – 72: The 604 S-series bale diameter range is 36 in – 72 in (91 cm – 180 cm).

47: The 604 S-series bale width is 47 in (119.4 cm).

50: The Atlas Pro control system can track real-time statistics for up to 50 fields.

70: The 604S Signature and 604S Premium use a 5-bar camless wide pickup with 70 rubber-mounted pickup teeth.

2,000: The 604S Rancher has a maximum bale weight of 2,000 lb (907.2 kg).
2,400: The 604S Signature and 604S Premium have a maximum bale weight of 2,400 lb (1,088.6 kg).

Answering questions about Vermeer 604 S-series balers

What is a 604S baler?

A 604S baler is a Vermeer 4-ft (1.2-m) round baler in the 604 S-series lineup. The lineup includes the 604S Rancher, 604S Signature and 604S Premium.

What size bales does a Vermeer 604S baler make?

The Vermeer 604 S-series makes 4-ft (1.2-m) wide bales with bale diameters from 3 ft to 6 ft.

What is the difference between the 604S Rancher, 604S Signature and 604S Premium?

The 604S Rancher focuses on convenient operation, straightforward adjustments, reliability and durable components. The 604S Signature focuses on convenient operation, straightforward maintenance, reliability and durability. The 604S Premium adds more productivity and automation, with improved density and capacity and features powered by the Atlas Pro control system.

Does the Vermeer 604 S-series have in-cab density adjustment?

Yes. All three 604 S-series balers have in-cab density adjustments, allowing operators to adjust density for different crop and field conditions from the tractor seat.

Does the Vermeer 604 S-series have moisture sensing?

Yes. Moisture sensing is optional on the 604S Rancher and included on the 604S Signature and 604S Premium. Moisture sensors provide real-time and field-average moisture information through the Atlas Pro control system.

Does the Vermeer 604 S-series have a net lift system?

Yes. The 604 S-series offers an optional net lift system that uses a swing-out arm and switch to raise the netwrap roll into the tailgate.

What is the pickup warranty on the Vermeer 604 S-series?

The Vermeer 604 S-series includes a 3-year pickup warranty on internal components, including parts and labor. Teeth and hardware for teeth are not included.

Where can I buy a Vermeer 604S baler?

You can buy a Vermeer 604S baler through the Vermeer dealer network. Visit the 604S Rancher, 604S Signature or 604S Premium product pages on vermeer.com to request a quote or find a dealer.

How to buy a Vermeer 604 S-series 4-ft baler

Buying the right 6×4 baler starts with matching the machine to your hay operation. Think through how many bales you make, the crop and field conditions you work in, how much in-cab control you want and which features will save you the most time during hay season.

Then compare the three 604 S-series models:

Start with the 604S Rancher if you want a straightforward 4-ft (1.2-m) baler with durable components and convenient operation.

Step up to the 604S Signature if bale shape, maintenance convenience and field information matter more.

Look at the 604S Premium if you want added automation, productivity and standard premium features.

Your local Vermeer hay equipment dealer can help you compare models, review available options and choose the baler that fits your tractor, acreage and baling goals.

Ready to compare 604S baler models? Visit vermeer.com to view the 604S Rancher, 604S Signature and 604S Premium, then request a quote or contact your local Vermeer dealer to find the Vermeer 4-ft (1.2-m) baler that fits your operation.

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 and Atlas Pro are trademarks of Vermeer Manufacturing Company in the U.S. and/or other countries.