Conveyor Systems vs Manual Movement: Cost Comparison

Most warehouses move cartons and pallets by hand, by trolley, or by forklift. The cost feels invisible because the labour is already on the floor doing other things, and the movement is just one of many tasks. But add up the time across a busy day and the numbers get serious fast. A typical mid-sized warehouse spends 15 to 25% of operator time on movement that adds zero value to the product.

Conveyor systems eliminate most of that movement time. The carton moves itself from one station to the next while the operator does value-add work. The capital cost is real, but the labour saving usually justifies it inside 18 months for any operation moving more than a few hundred cartons a day across a fixed flow.

This article walks through the actual cost comparison: time per movement, capital requirements, operating costs, and the volume thresholds where conveyors start paying back. The numbers are straightforward but most operators have never run them.

Time and Labour Cost of Manual Movement

Manual carton movement takes 5 to 15 seconds per metre depending on the carton weight and the operator's pace. Trolley movement is similar but with the added time of loading and unloading the trolley. Forklift movement is faster per metre but has high overhead time (mounting, dismounting, manoeuvring) so it only wins for distances over about 15 metres.

For a typical packing line where cartons move 10 metres from pack to seal to dispatch, the manual movement time is 50 to 150 seconds per carton. Across 2,000 cartons a day, that's 30 to 80 hours of operator time per day spent on movement. At fully-loaded labour rates of $32 per hour, the daily movement cost is $1,000 to $2,500.

Across a year (250 working days), that's $250,000 to $625,000 just on internal movement. Most operations have never calculated this number, which is why the case for conveyors looks more expensive than it actually is. The maths shifts dramatically once the manual movement cost is properly accounted for.

Conveyor Systems: Capital and Operating Cost

A basic powered roller conveyor system covering 20 metres of pack-to-dispatch flow costs $15,000 to $35,000 depending on configuration. A more sophisticated system with multiple zones, accumulation, and integration with end-of-line equipment costs $50,000 to $150,000 plus.

Operating cost is low. Power consumption for a typical conveyor run is around $1,000 to $3,000 a year. Maintenance is minimal (belt replacement every few years, periodic motor service). Total operating cost is usually under $5,000 a year for a standard system.

Compare that operating cost against the labour saving. A $30,000 conveyor that saves $80,000 a year in labour pays back in about 5 months and produces $400,000 of net benefit over a 10-year life. Even modest installations typically pay back inside 12 to 18 months at typical Australian volumes.

Where Manual Still Wins

Manual movement is the right answer in three scenarios. First, low volume. Below about 300 cartons a day across short distances, the labour saving doesn't justify the capital cost. Manual remains cheaper because the operators have spare time anyway.

Second, highly variable flow. Operations where the movement path changes daily (different SKUs going to different staging areas, frequent layout changes) struggle with fixed conveyor infrastructure. A flexible conveyor handles some of this, but for genuinely chaotic flow, manual stays ahead.

Third, very long distances or multi-floor flows. Conveyor systems struggle with distances over about 50 metres in a single run, and they really struggle with floor-to-floor movement. Forklift or AGV (automated guided vehicle) is usually a better fit for these flows than fixed conveyor.

For everything in between (consistent flow, daily volume above 300 cartons, distances of 5 to 50 metres), conveyor systems generally win on cost.

Hidden Benefits Beyond the Labour Saving

The labour saving is the headline number but conveyors have several other benefits that don't always make it into the ROI calculation. 

First, reduced operator fatigue. Manual movement is one of the most physically tiring parts of warehouse work; conveyors eliminate it and lift operator capacity for value-add tasks across the rest of the shift.

Second, reduced injury risk. Manual lifting, carrying, and pushing are the leading causes of WorkCover claims in warehouse roles. Removing the manual movement step removes the underlying injury cause. Premium reductions over time can be significant.

Third, improved consistency. A conveyor moves every carton at the same speed in the same direction. Manual movement varies (operator pace, what else they're doing, time of day). The consistency makes downstream operations like carton sealers and pallet wrapping machines run more smoothly because they receive cartons at a predictable rate.

Fourth, reduced floor congestion. Manual movement uses operator walking paths, which need to be wider than conveyor paths and which create congestion when multiple operators are moving simultaneously. Conveyors run in tighter spaces, freeing floor area for storage or staging.

How to Choose: The Decision Framework

The decision flow is volume and distance based. Below 300 cartons a day or distances under 5 metres: stay manual. 300 to 2,000 cartons a day with consistent flow over 5 to 30 metres: gravity or basic powered roller conveyor. Above 2,000 cartons a day or integration with automated equipment: powered conveyor with accumulation and integration capability.

For operations on the boundary, the right approach is to test. Hire a basic conveyor through our packaging machine hire program for three months and see what the labour saving actually looks like. The hire fee credits against purchase if you decide to keep it, which removes the risk of guessing wrong on the volume threshold.

The other consideration is future growth. If your volume is projected to double in the next three years, the conveyor case is much stronger because the labour saving compounds with volume. Don't size for current volume only; size for where you'll be in 18 months.

Why Choose Emmoco for Conveyor System Solutions

Emmoco supplies the full range of conveyor systems including gravity rollers, powered conveyors, flexible conveyors, and integrated packaging machines with conveyor connections. We design systems based on your specific flow rather than supplying off-the-shelf packages that might not fit.

The other thing we bring is the labour cost analysis. Send us your floor plan and your daily carton volumes and we'll calculate the actual current cost of manual movement. Most operators are surprised when they see the number, which often makes the conveyor case obvious.

If your operation moves significant volumes by hand or trolley and you suspect the labour cost is higher than people realise, get in touch with the team at Emmoco. Tell us your current setup and your projected growth. We'll come back with a recommendation that matches the equipment to your actual flow.