Pellet Machine Dimensions: Size, Clearance & Layout Guide
News 2026-06-23
A pellet machine dimension is usually not one number. It is the length, the width, and the height of the machine, plus the clearance needed to operate it, to maintain it, and to remove the die, and the actual set of dimensions depends on the model, the installation arrangement, and the site conditions. A machine that fits the floor but leaves no room to pull the die cannot complete a die change, and that layout does not meet the installation requirement. A machine that fits the room but cannot pass the doorway never reaches the floor.
This guide is written for buyers, plant engineers, and EPC contractors planning a pellet mill installation in an existing building or a new one. It covers how to read a dimension drawing, how to calculate the installation space, how to check the doorway and the lifting path, what the maintenance clearance is for, how the floor loading is assessed, and how to compare machine sizes by capacity without relying on a single headline number.
Pellet Machine Dimensions by Model
A dimension should be stated for a specific model, because the dimensions change with the motor, the gearbox, the feeder, and the discharge. The table below is a format, not a set of values. The values must come from the dimension drawing for the model being quoted.
| Model | Length | Width | Height | Main motor | Rated capacity | What the dimension includes |
|---|---|---|---|---|---|---|
| Model A | From the drawing | From the drawing | From the drawing | From the nameplate | With the material and die stated | Whether the motor, gearbox, feeder, and discharge are included |
| Model B | From the drawing | From the drawing | From the drawing | From the nameplate | With the material and die stated | Whether the motor, gearbox, feeder, and discharge are included |
A dimension that does not state what it includes is not a dimension for the installed machine. The motor, the gearbox, the feeder, and the discharge can each add to the length or the width, and a drawing that shows only the mill body is not the drawing the layout should be built on. The drawing supplied with the quotation should state what it includes, and the scope of supply should say whether the motor, the gearbox, the feeder, and the discharge are included.
A capacity figure should state the material, the moisture, the pellet diameter, and the die, for the same reason. A capacity range that covers several models is a marketing range, not a specification for one model.
The 2 m × 1.5 m Footprint
A 2 m × 1.5 m footprint applies to a specific model or a specific model group, not to the whole 0.5–5 t/h range. A machine with a larger motor, a larger die, or an integrated feeder can exceed that footprint, and a machine with a smaller motor can be smaller. The footprint should be quoted for the model, and the model should be named. Where a supplier presents a 2 m × 1.5 m footprint, the next question is which model it applies to, and which model in the range exceeds it.
How Much Floor Space Does a Pellet Mill Need?
The floor space has four parts, and each is calculated separately.
| Space component | What it includes | How to calculate it |
|---|---|---|
| Machine footprint | The length and width of the machine as installed | From the dimension drawing, including the motor and the feeder |
| Operating clearance | The space the operator stands in during normal operation | From the manual, and from the operating position |
| Maintenance clearance | The space needed to remove the die, the rollers, and the motor | From the manual, and from the removal path of each part |
| Auxiliary equipment | The control cabinet, the conveyor, the dust collector, and the cooler | From the layout of each item |
The footprint plus the clearances gives the minimum space for the machine alone. The control cabinet, the conveyor, and the dust collection are separate items with their own footprints, and they should be added to the layout rather than assumed to fit in the clearance.
The clearances should come from the machine manual and the drawing. The operating clearance, the maintenance clearance, and the die removal clearance are separate figures, and a layout that provides one but not the others is a layout that works until the first die change.
A dimension drawing with a top view is the most useful document for this calculation. The drawing should show the machine outline, the die removal direction, the motor removal direction, the control cabinet position, the inlet and outlet, and the utility connection points. A layout that is calculated from a table of dimensions, without the drawing, is a layout that is likely to miss the die removal path.
Does the Control Cabinet Count in the Footprint?
The control cabinet is a separate item with its own footprint and its own door swing. Whether it is included in the layout depends on the supplier’s scope of supply and the layout drawing. A supplier who includes the cabinet in the scope should show it on the drawing, and a supplier who supplies the cabinet separately should provide its dimensions and its clearance. A cabinet mounted remotely saves floor space, but the cable length and the cable route must allow it.
Doorway, Delivery and Installation Access
The machine has to reach the floor before it can be installed.
| Access item | What to check | Why it matters |
|---|---|---|
| Doorway width and height | The clear opening, not the nominal door size | A machine that is 50 mm too wide does not pass |
| Corridor and turning space | The width and the turning radius along the path | A machine that fits the door but not the corner does not reach the floor |
| Floor loading along the path | The point load of the machine and the lifting equipment | A floor that carries the machine in place may not carry it during the move |
| Lifting points | The lifting points on the machine and the capacity of the crane or the hoist | A machine without a lifting plan is moved by improvised methods |
| Disassembly option | Whether the machine can be split for transport | A split machine has a smaller transport dimension but a longer installation |
A machine that cannot pass the doorway is either moved in through a larger opening, split for transport, or not installed. Splitting the machine for transport reduces the transport dimension, but it adds installation time and a re-alignment step, and the effect should be confirmed against the supplier documentation and the site conditions.
Maintenance Clearance and Utility Connections
The maintenance clearance is the space that makes the machine serviceable, and it is often the space that is cut first when the floor is tight.
| Maintenance item | What it needs | Why it matters |
|---|---|---|
| Die removal | Clear space in the die removal direction, and a lifting point above | The die is heavy and is removed as a unit |
| Roller removal | Access to the roller assembly | The rollers are removed more often than the die |
| Motor removal | Access to the motor and the coupling | The motor is removed for a bearing replacement |
| Lubrication points | Access to the lubrication points | The lubrication is a routine task |
| Control cabinet | Access to the panel door and the cable entry | The panel is opened for inspection and fault finding |
| Utility connections | Access to the steam, the air, the water, and the drain | The connections are checked and serviced |
The die removal clearance should be calculated from the die outside diameter, the removal tool, and the lifting path, using the machine manual and the drawing. The roller clearance and the motor clearance should be taken from the manual as well. Where the manual and the drawing give different figures, the more demanding figure should be used, and the difference should be confirmed with the supplier.
Floor Loading
The floor loading has two parts. The point load is the load under each foot or each base plate, and the area load is the machine weight spread over the footprint. The floor must carry both, and the check should use the machine weight from the drawing and the structural data for the building. The floor loading requirement should come from the machine manual and the building structure file, not from a general figure.
Pellet Mill Layout Example
The example below is a calculation format, not a case. It shows how the numbers are combined.
| Item | Value source | What it adds to the layout |
|---|---|---|
| Machine length | Dimension drawing | The length of the machine |
| Machine width | Dimension drawing | The width of the machine |
| Front clearance | Machine manual | The operator and die removal space |
| Rear clearance | Machine manual | The motor removal space |
| Side clearance | Machine manual | The access to the rollers and the lubrication |
| Control cabinet | Panel drawing | The panel footprint and the door swing |
| Conveyor and cooler | Layout drawing | The footprint of each item |
The total space is the sum of these items, plus the access path. A layout that states only the machine footprint is a layout that has not been calculated.
Frequently Asked Questions
Does the control cabinet count in the footprint?
The control cabinet is a separate item with its own footprint and its own door swing. Whether it is included in the layout depends on the supplier’s scope of supply and the layout drawing. A cabinet mounted remotely saves floor space where the cable length allows.
How much clearance is needed for a die change?
The die removal clearance depends on the model and the die size, and it should be calculated from the die outside diameter, the removal tool, and the lifting path, using the machine manual and the drawing. The die is removed as a unit, and the space in the removal direction plus the lifting point above are both required.
Does the machine dimension include the motor and the gearbox?
It depends on the drawing. A drawing that shows the mill body only does not include the motor or the gearbox, and the installed length is larger than the drawing. The drawing supplied with the quotation should state what it includes.
What if the doorway is too narrow for the machine?
The options are a larger opening, a split configuration for transport, or a different model. The check should be made before the order, because a machine that cannot reach the floor cannot be installed.
How is the floor loading assessed?
The floor loading has a point load and an area load, and both should be checked against the machine weight and the building structure data. The requirement should come from the machine manual and the building structure file, not from a general figure.
Request a Layout Review
Send the available floor space, the doorway and corridor dimensions, the ceiling height, the floor loading data, the material type, the target capacity, the pellet diameter, and the power supply. A dimension drawing and a layout review can then be prepared against the actual site rather than against a general footprint.
Dimensions, clearances, floor loading, and access requirements in this article must be confirmed against the dimension drawing for the specific model, the machine manual, the building structure file, and the site survey. This article does not provide universal values for these items.
