Electric Pallet Stacker: How to Choose the Right One
An electric pallet stacker is a battery-powered lifting unit that raises pallets on a mast so you can stack them or put them away on racking, while staying far more compact than a forklift. It sits between the electric pallet jack, which only moves loads at floor level, and the counterbalance forklift, which is built for heavier loads, higher lifts and longer runs.
What is an electric pallet stacker used for?
An electric stacker lifts, moves and stacks pallets over short distances, mostly indoors. Its mast lets you place a load on the second or third level of racking, feed a mezzanine or stack pallets on top of each other to free up floor space. The electric drive is quiet and produces no exhaust at the point of use, which makes it a good fit for enclosed warehouses.
You will see stackers in small warehouses, retail stockrooms, production shops and receiving docks where a full forklift would be oversized. Unlike a counterbalance forklift, most stackers rest on support legs (outriggers) that sit under or around the load. That makes them shorter and easier to manoeuvre in narrow aisles.
Pallet stacker vs electric pallet jack: what’s the difference?
The difference is lift height: an electric pallet jack raises the pallet a few centimetres to carry it, while an electric stacker lifts it high enough to stack or rack it. If your pallets stay on the floor, a pallet jack is enough. As soon as you need to reach a rack level, you need a stacker or a forklift.
The table below places the stacker between the two other main types of material handling equipment.
| Criteria | Electric pallet jack | Electric stacker | Counterbalance forklift |
|---|---|---|---|
| Lift height | A few centimetres, just enough to clear the floor | Several rack levels, depending on the mast | Highest of the three, depending on the mast |
| Main job | Moving pallets at floor level, loading and unloading | Stacking and putting away over short distances | Lifting and carrying heavy loads, indoors or outdoors |
| Footprint | Very compact | Compact, suited to narrow aisles | Longer and wider because of the counterweight |
| Floor | Smooth indoor floor | Smooth indoor floor | Indoors or outdoors, depending on the tires |
| Typical load | Pallets to move, not to lift | Light to medium loads | Medium to heavy loads |
| Operator position | Walking behind the unit | Walking, or standing on a platform depending on the model | Seated or standing in the operator compartment |
In practice, many businesses use both: a pallet jack to empty trailers and feed workstations, and a stacker to put product away up high.
What types of electric stackers are there?
There are four main families of electric stackers: walkie, ride-on, straddle and counterbalanced. They differ in where the operator stands, how the unit stays stable under load and which pallets it can pick up.
| Stacker type | How it works | Best for | Watch out for |
|---|---|---|---|
| Walkie stacker | The operator walks behind the unit and steers with a tiller | Small warehouses, occasional use, short runs | Pace is limited by walking speed |
| Ride-on stacker | The operator stands on a folding or fixed platform | Longer runs and heavier daily use | Needs a bit more room to turn |
| Straddle stacker | The support legs run on each side of the pallet instead of under it | Closed-bottom pallets that can’t take legs underneath | Check the width between the legs against your pallets |
| Counterbalanced stacker | No front legs; a rear counterweight provides stability | Any pallet type, picked up directly like a forklift | Longer unit, so wider aisles |
Pallet type is often the deciding factor. A stacker whose legs go under the load needs pallets that are open at the bottom. If you receive closed-bottom pallets or mixed sizes, a straddle or counterbalanced model will save a lot of awkward repositioning. You can browse the stackers we carry to compare configurations.
Manual, semi-electric or fully electric stacker: which one do you need?
It mostly comes down to how many lifts you do per day: a manual stacker suits occasional use, a semi-electric model suits moderate use and a fully electric stacker suits steady, daily work. The more often you lift, the faster powered drive and lift pay for themselves in time and in operator fatigue.
- Manual stacker: the forks are raised with a hand or foot hydraulic pump and the unit is pushed. There is no battery to maintain, but it quickly becomes tiring when lifts add up.
- Semi-electric stacker: lifting is powered, but the operator pushes the unit. It is a compromise for small, flat areas with short travel.
- Fully electric stacker: both lifting and travel are powered. It is the most productive option, and the safer one when loads get close to rated capacity.
With an electric unit, also plan where the battery will be charged and how long your shifts run. A stacker that has to cover two back-to-back shifts has very different needs from one used an hour a day.
How do you choose the right capacity and lift height?
Start from your heaviest pallet and your highest rack level, then confirm on the data plate that the unit can lift that weight to that height. A stacker’s rated capacity is given for a specific lift height and load centre. The higher you go, the lower the allowable capacity.
- Weigh your real loads. Use the heaviest pallet you handle regularly, not an average.
- Measure the working height. Measure to the top of your highest rack beam, then add the clearance needed to lift the pallet over it.
- Check the lowered mast height. Look at doors, mezzanines, sprinkler heads and light fixtures: the collapsed mast has to clear everything along the route.
- Account for the load centre. In North America, capacity is usually rated at a 24-inch load centre. A longer or off-centre load reduces real capacity.
- Measure your aisles. Turning radius and overall length, pallet included, determine whether the unit can turn in your aisles.
If your needs go beyond what a stacker can reach, a reach truck is often the next step for warehouses with tall racking.
When is a forklift a better choice than a stacker?
A forklift becomes the better choice as soon as loads get heavy, runs get longer, the floor is uneven or the unit has to go outside. A stacker is designed for smooth concrete, short distances and medium loads. Asking more of it wears the equipment out early and raises the risk of an incident.
- Loading trailers at the dock: a forklift, or a pallet jack for floor-level pallets, is better suited than most stackers.
- Yards, gravel or snow: only a forklift on pneumatic tires is built for those surfaces. Our guide to pneumatic vs cushion forklift tires explains why.
- High throughput over several shifts: an electric forklift gives you more speed, capacity and run time.
If you are torn between the two, describe your loads, heights and floors to a sales advisor. It is the simplest way to avoid buying an undersized unit.
Do you need training to operate an electric stacker?
Yes. Anyone who operates powered lifting equipment, stackers included, should be trained first. Across Canada, employers are responsible for making sure workers are trained to use material handling equipment safely. The exact requirements depend on your province: in Quebec, check with the CNESST; elsewhere, check with your provincial occupational health and safety regulator.
Good training covers reading the capacity plate, load stability at height, travelling in aisles and the pre-use inspection. A1 Machinery can point you toward partners who offer operator training.
Frequently asked questions about electric pallet stackers
How much weight can an electric stacker lift?
It depends on the model, the lift height and the load centre. Rated capacity applies at a given height and decreases as the forks go up. Always check the unit’s data plate. If heavy pallets need to go high, a forklift or a reach truck is usually the better fit.
Can an electric stacker be used outdoors?
Most stackers are designed for smooth indoor floors. Their small wheels and low ground clearance handle gravel, cracked asphalt, snow and slopes poorly. For a warehouse yard, a forklift on pneumatic tires is the right solution.
What’s the difference between a stacker and a forklift?
A standard forklift gets its stability from a counterweight at the rear. It handles heavier loads, lifts higher, travels faster and can work outdoors. A stacker is more compact and simpler, and it is designed for stacking and put-away over short indoor distances.
Should you buy a new or used stacker?
A used stacker can be an excellent choice if it has been inspected by mechanics and the battery condition is known. Ask for the service history, check the mast, chains and forks, and test the unit under load. The battery is often the most expensive part to replace. Our used forklift inspection checklist covers the same checks in detail.
Can you rent an electric stacker?
Renting makes sense for seasonal peaks, one-off projects or to try a type of unit before buying. For daily use over several years, buying outright or through a lease is generally the better deal. Talk through your expected usage with an advisor.
Where do you start?
Write down the weight of your heaviest pallets, the height of your highest rack and the width of your aisles. With those three numbers, it is easy to tell whether a stacker will do the job or whether you need a forklift.
To see available equipment:
- New and used pallet stackers: for stacking and put-away indoors
- Electric pallet jacks: for moving pallets at floor level
- Electric forklifts: when loads or throughput go beyond a stacker
- A1 Machinery’s full forklift inventory
A1 Machinery has more than 700 units, and every one is inspected and certified by our mechanics before it is sold. If the unit you need isn’t online yet, contact an A1 Machinery advisor or call (450) 467-2224 and we will check availability for you.