Bottom line: the right conveyor system isn't just about moving product — it's about matching product characteristics, line speed, plant layout, and integration points. Get these inputs right before specifying conveyor type.
Common Conveyor Types and Their Applications
| Conveyor Type | Best For | Typical Use in Packaging Lines |
|---|---|---|
| Belt conveyor (flat) | Bags, cartons, bottles, packs | General transfer between machines |
| Roller conveyor | Heavy boxes, pallets, rigid items | Heavy end of line, case handling |
| Screw / auger conveyor | Bulk powder, granules | Material feeding to filling hoppers |
| Bucket elevator | Powder and granule vertical lift | Feeding hoppers at height |
| Incline / decline belt | Elevation changes | Between floor levels in multi-story layouts |
| Accumulation conveyor | Buffering between machines | Before case packer, labeler, palletizer |
Step 1: Define What You Are Conveying
The product and its packaging determine belt type, width, and speed. Key inputs:
- Product weight per unit: Affects belt tensioning, drive motor sizing, and support structure.
- Container type: Rigid bottles need side guide rails to prevent tipping; soft bags need a flat, even belt surface; cartons need square alignment guides.
- Fragility: Glass containers require gentle acceleration/deceleration and cushioned transfer points. Soft bags can handle more variation.
- Temperature: Hot-fill products coming off a filling line need conveyor materials rated for the product's surface temperature. Frozen products need corrosion-resistant materials and drainage design.
Step 2: Map Your Line Layout
Before specifying a conveyor, document your floor plan:
- Position of each machine (filler, capper, labeler, coder, case packer)
- Available floor space between machines and overall plant width
- Elevation changes — is everything on one level, or do you have mezzanine levels?
- Operator access requirements — where do operators need to stand, inspect, and intervene?
- Column positions and other fixed obstacles
A floor sketch or CAD file with machine positions significantly accelerates the conveyor design process. Even a rough hand-drawn layout with dimensions is valuable.
Step 3: Match Line Speed
Conveyor speed must accommodate the output of the machines it connects. Key design principles:
- The conveyor between two machines should run slightly faster than the upstream machine's output to create spacing and prevent back-pressure.
- Accumulation conveyors between machines with different output rates create a buffer — preventing the faster machine from being starved or blocked by the slower one.
- Variable-speed drives (VFDs) on conveyor motors allow speed adjustment without changing mechanical components — important for lines running multiple products or SKUs.
Step 4: Define Integration Needs
Modern packaging lines include several inline inspection and processing stations that interact with the conveyor:
- Metal detection: Requires a specific tunnel gap, grounding, and rejection mechanism downstream.
- Checkweigher: Requires a short flat section at consistent speed for accurate weighing.
- Rejection system: Air jet, sweep arm, or pusher rejection for non-conforming packs — needs a defined reject lane on the conveyor.
- Coding (inkjet, laser): Requires consistent product positioning and speed for accurate code placement.
- Case packer and palletizer: The conveyor must deliver product in a defined orientation and grouping pattern for case loading.
Step 5: Choose Material and Hygiene Level
Material selection affects both cost and long-term maintenance:
- SUS304 stainless steel frame: Standard for food and beverage; cleanable with standard sanitizers; corrosion-resistant.
- Carbon steel with paint or coating: Standard for non-food industrial applications; lower cost; requires more maintenance in wet environments.
- Belt material: PU (polyurethane) belts for food; rubber or PVC for industrial. Belt material affects grip, cleanability, and chemical resistance.
- IP rating for motors and electronics: Wash-down rated (IP65/IP67) for food applications where hose-down cleaning is required.
Full Line vs Standalone Transfer Conveyor
Not every project needs a complete automated flow. Two common scenarios:
- Standalone transfer: A single belt conveyor connecting two machines that are otherwise manually operated. Lowest investment, solves a specific bottleneck.
- Full automated flow: Conveyor integration from filling through inspection, coding, case packing, and palletizing. Higher investment but reduces total labor and improves consistency.
Many operations start with a standalone transfer and add integration steps as production volume grows. If this is your plan, discuss it with the manufacturer upfront so the initial conveyor is designed with connection points for future additions.
For full production line solutions, see our solutions page for line integration examples.
Frequently Asked Questions
What conveyor is suitable for powder bags?
A flat belt conveyor with adjustable side guides is standard for powder bags. Gentle incline angles work for modest elevation changes. See our conveyor system range for available configurations.
How do I choose a conveyor for bottles or cartons?
Belt conveyor with appropriate width and speed. Bottles need side guide rails to prevent tipping. Carton handling may need guide alignment before sealing. Use our recommendation form with your container dimensions.
Can a conveyor be integrated into an existing line?
Yes. Provide existing machine specs and floor layout for integration design. Contact our engineers for an integration assessment.
What information is needed for conveyor planning?
Product type and weight per unit, line speed, floor layout dimensions, elevation changes, integration points needed, and hygiene level. See our full range of solutions at our machinery page.
Do I need a full line or just a transfer conveyor?
Depends on your automation goal. We can design anything from a single transfer segment to a complete automated flow. Describe your current setup and target state — we'll recommend the right scope.