How Conveyor Systems Integrate with Filling Lines

Views: 3451 Author: Howie SUN Publish Time:
The conveyor touches every bottle on the line, so guide rail gaps and transfer heights decide real uptime more than the filler rating does.
Key facts at a glance
ScopeAir conveyor, roller conveyor, depalletizer, palletizer
FunctionMove bottles and cases without damage, stack outbound pallets
Key controlAccumulation pressure, guide rail gap, pattern repeatability
TypesSemi-automatic and automatic palletizing
Key decisionManual, semi-automatic or robotic palletizing
AutomationManual, semi-automatic or robotic

What breaks at the depalletizer?

Empty bottle layers are light and unstable, so the depalletizer is where a badly stacked pallet becomes a line stop. Layer pickup, sweep speed and the interface with the air conveyor are the three settings to check, and the pallet quality from the bottle supplier matters as much as the machine.

How much accumulation does a line need?

Enough to cover the longest normal stop downstream without stopping the filler, and no more. Extra accumulation hides a problem instead of solving it, and it adds floor space plus a place for bottles to sit and collect dust. The buffer size is a calculation, not a default.

FunctionManualAutomatic
Depalletizing empty bottlesRack or hand stackLayer depalletizer
Case palletizingOperator with pattern sheetLayer or robotic palletizer
Pallet wrappingHand wrapperIn-line stretch wrapper
AccumulationNone, line stops togetherBuffer sized to longest stop

Reference unit for this duty: the Conveying.

What does a palletizer need from the building?

Floor loading for a full pallet stack, clear height for the mast or robot envelope, and a pallet dispenser within reach of the operator. These are building decisions taken before the machine is ordered, and changing them later costs more than the palletizer.

Reference unit for this duty: the Depalletizing & Palletizing.

When does a robotic palletizer beat a layer palletizer?

When the pattern mix is wide and the pack is fragile. A layer palletizer is faster on one stable pattern; a robot changes pattern by program. Most plants with more than three patterns choose the robot for that reason alone.

The same question is worked through from another angle in How Conveyor Layout Impacts Water Filling Line Efficiency.

How to read the numbers. Where a BPH appears below it is the specification range, not a measured rate. Conveyor accumulation hides short stops but not pattern changes. Plan on a factor of 0.65-0.85.

Frequently asked questions

How many cases per hour can a palletizer handle?

It is rated in cases or layers per hour and must exceed the packer output with margin. The number to compare is the pattern-adjusted rate, not the headline figure at one layer size.

Why do bottles jam at conveyor transfers?

Guide rail gap and transfer plate height. Both are set for one bottle diameter and both drift when a second format is introduced. Re-set them at every changeover, not once at installation.

How many pallets per hour does an automatic palletizer handle?

It is rated in cycles per hour and depends on the layer pattern and the stack height. Compare the pattern-adjusted rate, not the headline figure.

What conveyor speed should a line use?

It follows the filler rate with margin for accumulation, not the maximum the conveyor can carry. Running a conveyor faster than the line needs increases scuffing and jam severity.

Key takeaways
  1. Accumulation should cover a normal stop, not hide a chronic one.
  2. Palletizing payback follows shift pattern and pattern stability.
  3. Guide rail gap is a per-format setting, not an installation setting.
  4. Empty-bottle layers punish a badly squared pallet.
About the author
Written by the Sunswell engineering team - led by Howie SUN, Founder & CEO, with 14 years in filling and blow-moulding equipment R&D and turnkey project delivery across 71+ countries.
Last reviewed: 2026-08-28 . Reviewed by Sunswell engineering team
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