October 3, 2026 | by Frank, SunAura Machinery Applications Engineering
Buyers usually think about packaging equipment in terms of throughput, price and brand. They forget the single factor that determines whether a line actually runs at its rated speed: the layout on the factory floor. A $400,000 servo packaging line installed in a cramped corner with no room for film rolls and no clear aisle for the forklift will run at 60% of spec from day one — not because the equipment is bad, but because the layout was an afterthought.
After laying out more than 150 packaging lines in factories across 40+ countries, we’ve learned that layout is where most packaging projects fail. Not at the machine, not at the commissioning — at the very beginning, when someone draws boxes on a napkin. This is the layout guide we hand to every customer before they send us their floor plan.
The layout rules below apply to every line type — including the recently delivered edible oil filling, capping and labeling line, where filler, capper and labeler each need two-sided service access.
Start with the Process Flow, Not the Machines
The most common layout mistake is arranging machines first and drawing material flow second. It should be the other way around. Start by mapping every step of your packaging process on paper, from bulk product infeed to finished pallet outfeed. Only then do you place equipment around that flow.
A typical flow looks like this:
- Bulk product / raw material staging
- Filling or weighing station
- Sealing / wrapping (flow wrapper, vacuum chamber, tray sealer)
- Coding / labelling
- Quality check (checkweigher, metal detector, vision)
- Case packing / case erecting
- Case sealing / strapping / shrink wrapping
- Palletizing
- Finished pallet staging
Keep product moving in one direction wherever possible. Backtracking — where finished packs go back through an area the raw material already passed — doubles handling distance and creates traffic conflicts between operators, forklifts and conveyors.
The Four Layout Shapes
| Layout Shape | Best For | Footprint | Trade-off |
|---|---|---|---|
| Straight (in-line) | Long, narrow buildings; simplest supervision | 10–25 m long × 2.5–3 m deep | Easy to expand at the end; needs linear floor space |
| L-shaped | Square-ish rooms; wrapping and palletizing on different walls | Fits in 8×8 m | 90° turn needs a corner conveyor; more complex controls |
| U-shaped | Small plants; one operator manages the whole line | Compact, 6×8 m typical | Infeed and outfeed on the same side; shortest operator walking distance |
| Parallel / multi-lane | High-volume lines with 2+ wrappers | Wide footprint, 15×10 m | Balances throughput but needs two operators |
How Much Space Do You Actually Need?
Machinery footprints are smaller than people think. The problem is that buyers forget to add clearance space around each machine. Here’s what we budget for:
- 1.0 meter minimum clearance on all sides of every major machine for maintenance and operator access
- 1.5 meters on the film-roll side of a flow wrapper — roll change needs room to maneuver a 300 mm diameter roll
- 1.2–1.5 meters between stations for conveyor transfer and accumulation table
- 2.0+ meters main aisle if a forklift passes; 1.5 meters if pedestrian traffic only
- 1.0 meter behind the control panel for electrical maintenance
As a rule of thumb, plan on 1.5 to 2 times the listed machine footprint in total floor space. A flow wrapper that’s listed as 4×1.5 m actually needs about 7×3 m when you add film roll access, maintenance clearance and an accumulation table.
The Five Layout Mistakes We See Most Often
1. No room for film rolls and empty cartons
The packaging material room always gets shortchanged. Buyers place machines to the millimeter against the wall, then discover they can’t physically load a film roll. Budget 4–6 m² per wrapper for film roll storage, plus 2–3 m² for empty carton blanks.
2. Quality check station in a traffic aisle
The checkweigher and metal detector need a 1 m clear zone around them because operators pull rejected packs out. If the QC station is in a main walkway, every rejected pack becomes a bottleneck.
3. Palletizer too close to the finished-goods door
New pallets need to be stretch-wrapped before a forklift picks them up. If the palletizer is 1 meter from the shipping door, there’s no room for the stretch wrapper. Leave 4–5 meters of accumulation length after the palletizer.
4. No future-proofing for expansion
Lines almost always grow. If you’re buying one flow wrapper today, leave space for a second one tomorrow. The easiest expansion is at the end of a straight line — which is why straight-line layouts are our default recommendation for new plants.
5. Ignoring electrical and air drops
A 20 m line needs 3-phase power drops at 3–4 points along its length, and compressed air drops every 5 meters. If you place the line first and then realize the nearest power outlet is 15 meters away, you’re looking at a 4–8 hour rework job.
What to Send Your Machine Builder
Before we finalize a line layout, we ask every customer for the same four things:
- A CAD or PDF floor plan showing walls, doors, pillars and existing equipment
- Ceiling height and doorway dimensions (a 3 m tall machine won’t fit through a 2.2 m door)
- Power supply (voltage, phase, available amperage)
- Compressed air supply (bar and L/min capacity)
If you send us those four items, we’ll come back with a 2D layout showing exact machine positions, aisle widths and material flow within three working days. That’s part of the engineering package on every turnkey line we ship — not a paid consulting engagement.
Have a floor plan you want us to look at? Send your facility drawing through the contact page with your product type and target output. Our applications engineers will mark up the layout, flag clearance issues, and recommend a line configuration that actually fits. Browse our industry solutions and product range to see the equipment we typically lay out together.
The bottom line: a packaging line that fits your floor is a line that runs at spec. A line shoehorned into a corner runs at 60% no matter how good the machines are. Spend the time on layout before you order, not after the equipment shows up.