A stock chaser is a seated burden carrier fitted out for order picking — shelves, totes, sometimes a small lift deck. It has been the default answer in distribution centers for forty years. The standing electric scooter is the challenger. Here is an honest comparison.
The metric that decides it: stops per hour
Most equipment comparisons lead with top speed. That is the wrong number. On a pick path, almost no time is spent at top speed — it is spent accelerating, decelerating, and getting on and off.
Sit-down units carry a mount/dismount penalty of roughly four to six seconds per stop once you count settling into the seat, and standing units run about one to two seconds. At 40 stops per hour over an eight-hour shift, that difference is 21 to 27 minutes per picker per shift. Time it on your own floor before you take anyone's word for it, including ours.
| Stock chaser | Standing scooter | |
|---|---|---|
| Best at | Long runs, heavy totes, few stops | Dense pick paths, many stops |
| Mount/dismount | Slow | Fast |
| Deck capacity | Higher | Moderate, modular |
| Aisle footprint | Wider | Narrower |
| Typical price | $10,000–$20,000 | Around $5,000 |
| Operator fatigue | Lower on long shifts | Lower than walking, higher than seated |
Where the stock chaser still wins
- Heavy or bulky picks. If totes routinely exceed what a modular deck handles, the seated cart has the capacity.
- Long, uninterrupted runs. A half-mile haul between buildings with two stops favors sitting.
- Long shifts with few breaks. Standing for ten hours is real fatigue. Match the format to the shift.
- Existing fleet and parts inventory. If you already stock parts for a brand, switching has a real switching cost.
Where the standing scooter wins
- High stop density. Anything above roughly 25 stops per hour and the dismount penalty dominates.
- Narrow or congested aisles. Smaller footprint means fewer three-point turns.
- Fleet economics. At roughly a third of the price, you can put a unit under more people instead of rationing two carts across a shift.
- Mixed duty. Swappable attachments mean the same unit serves maintenance, picking, and supervision.
How to actually decide
Run a two-week timed pilot. Pick one zone. Measure three things:
- Average stops per hour per picker
- Average travel distance per pick
- Total non-picking time (transit plus mount/dismount)
If stops per hour is high and travel distance per pick is short, standing wins. If stops are few and hauls are long and heavy, seated wins. Most facilities have both patterns in different zones, which is why mixed fleets are common and sensible.
The utilization trap
The most expensive mistake in this category is buying two excellent $18,000 carts for a floor that needs eight units. Six people keep walking. The fleet-wide travel time barely moves, and the capital sits idle between shifts.
Price per unit matters less than coverage. Work out how many people need to stop walking, then find equipment that fits that number inside your budget.
Frequently asked questions
Is a stock chaser the same as a burden carrier?
A stock chaser is a burden carrier configured for picking. Same OSHA classification, different fit-out.
Can standing scooters carry totes?
With the right attachment, yes. Check deck rating against your heaviest routine tote, not your average one.
What about operator safety on a standing unit?
Same fundamentals as any powered industrial truck: speed governance, trained operators, clear traffic rules, and a floor plan that separates pedestrian and vehicle lanes.
Do we need to replace our whole fleet at once?
No, and you should not. Pilot one zone, measure, then expand where the numbers hold up.
If you want to run this comparison against your own stop counts, the calculator below does the arithmetic.
