Feed Mixer Wagon Discharge Doors — A Layout That Fits Your Barn

Some farms distribute feed from the right-hand side of the mixer wagon, while others feed from the left. Some barns allow the tractor and wagon to drive straight through; others require reversing into the building first. Feed mixer wagon discharge doors should therefore be positioned around the way feeding actually takes place on the farm.

Door position is only part of the arrangement. The discharge chute, door opening indicator and provision for an additional outlet also matter. These details are best agreed before the machine is built, when its configuration can be matched to the farm’s requirements.

How to Match Discharge Doors to Your Barn Layout

Before choosing door positions, consider the wagon’s entire route: entering the building, distributing feed and leaving again. The position of the feed table, the available passage width and any posts, narrow doorways or other obstructions all need to be taken into account.

In a drive-through barn, feed can be distributed as the wagon travels through the building. Where there is no through route, the operator may need to reverse the wagon inside and then begin feeding while driving forwards towards the exit. The discharge arrangement should suit this direction of travel.

When selecting a mixer wagon for a narrow barn, check both the machine’s overall dimensions and the point at which feed will leave the tub. This also applies to compact machines such as the FIDER-i MINI: machine dimensions and discharge layout should be considered together.

If one wagon serves several buildings, it is worth reviewing the conditions in each. The feed table may be on a different side in another barn, or the access route may require a different approach.

If you are still deciding what capacity you need, the feed mixer wagon calculator can provide an initial estimate based on livestock type and numbers. The result can then be considered alongside your feeding routine, building dimensions and intended discharge arrangement.

Side, Front or Rear Discharge — Available Door Positions

ZAMET feed mixer wagons can be configured with discharge doors in the following positions:

• At the front: front centre, front right or front left.
• Midway along either side: right-hand or left-hand side.
• At the rear: rear centre, rear right or rear left.

Left and right are defined when facing the wagon’s normal forward direction of travel.

A side-discharge mixer wagon delivers feed through an opening in the side of the tub. Front and rear doors provide other ways to position the outlet in relation to the feeding area. No single arrangement will be equally convenient in every barn.

For our feed mixer wagons built to order, the number and position of discharge doors are agreed during configuration. It helps to identify which door will be used most often and which might be needed in another building or when travelling in a different direction. This gives each additional outlet a practical purpose.

A Discharge Chute Matched to the Feeding Area

Once the door position has been selected, the discharge chute deserves attention. It guides feed as it leaves the tub and directs it towards the feeding area.

At ZAMET, we can adapt the size and shape of the discharge chute to the customer’s requirements. When agreeing its design, we consider the position of the feed table, its distance from the wagon’s route and the space available. The chute needs to suit both the intended feed placement and the clearances along the passage.

For this reason, the door and chute are best specified together. Photographs, basic measurements or a simple barn sketch help establish whether the standard arrangement is suitable or whether the chute’s dimensions or shape need adjusting.

Discharge Door Opening Indicator

During feeding, it is useful to see how far the discharge door is open. ZAMET feed mixer wagons use a cable-operated discharge door opening indicator. The mechanism moves a pointer against a marked scale at the front of the wagon.

The operator can check the door position and return more easily to a previously used setting on the next feeding pass. The scale provides a clear reference, particularly when more than one person operates the machine.

The indicator shows how far the door is open. Its position does not measure the weight of feed discharged, but it helps make the door setting repeatable.

Mixer Wagons with a Discharge Conveyor — Why Add Another Door?

If a wagon has a front or rear discharge conveyor, it is worth specifying an additional door for direct discharge. This can be used during everyday feeding and can also provide an alternative outlet if the conveyor itself fails.

We recommend the following arrangements:

• Front-mounted conveyor — an additional rear-centre discharge door.
• Rear-mounted conveyor — an additional front-right or front-left discharge door.

For example, a wagon with a front conveyor can use the belt for routine feeding and the rear-centre door when required. An “emergency discharge door” is therefore a normal working outlet that provides another way to unload the wagon.

When ordering, consider how the wagon would approach the feed table when using this additional door. Depending on the barn layout, the operator may need to position the wagon differently or change the direction of travel. It is useful to plan this alternative before it is needed.

When Assessing Discharge, Check the Auger Too

The discharge door and chute form the final part of the feed’s route through the tub. When assessing mixing and emptying performance in an existing wagon, it is also worth checking the condition of the auger and its working components.

This is particularly relevant when the current machine is expected to remain on the farm for several more years. At ZAMET, we also provide production and refurbishment of vertical mixing augers, including augers for other manufacturers’ machines. Assessing the auger’s condition helps establish whether repairs are appropriate or a replacement is needed.

What to Agree Before Ordering a Feed Mixer Wagon

Choosing the configuration is easier when the machine’s working conditions are clearly understood. Before discussing the specification, it helps to prepare:

• Doorway and passage dimensions.
• Photographs or a barn sketch showing the feed table.
• Details of which side feed is distributed from.
• A description of the entry route, exit route and any reversing required.
• Information about other buildings the wagon will serve.

It is also worth mentioning any planned barn alterations or changes to the feeding routine. Future requirements can then be considered when specifying door positions and chute design.

If a short lead time is important, you can also look for new machines available from stock in the current machinery listings. For a ready-built wagon, compare its actual specification with your farm’s requirements, including the door positions, chute design and conveyor arrangement.

Once the model and equipment have been selected, it is easier to plan the budget. ZAMET also offers agricultural machinery financing, allowing the purchase cost to be spread over time. Available options and terms should be confirmed individually for the chosen machine and the customer’s location.

A suitable discharge layout should work with the wagon’s daily route and the place where feed needs to be delivered. That is why these details are agreed before production — from door positions and chute shape to an additional outlet alongside the conveyor.