Potato Digger vs. Potato Harvester: Which Is Right for Your Operation?

Level 1: Mounted Potato Digger (AWB Series Mounted)

What it does: Digs 2 rows, lifts the soil-tuber mass onto a vibrating sieve web, separates soil and debris, and deposits clean potatoes in a windrow on the ground surface behind the machine. The potatoes remain on the field until a separate operation collects them — either by hand, mechanical pickup belt, or front-loader.

Key characteristic: The machine does half the job (dig and sieve). You and your crew do the other half (pick up and load).

Level 2: Trailed Potato Digger (AWB Series Trailed)

What it does: Same dig-sieve-windrow function as the mounted digger, but on its own trailed chassis with independent wheels. The trailed design allows higher working speeds (5-10 km/h versus 3-5 km/h for mounted), better stability in uneven ground, and zero rear-axle loading on the tractor.

Key characteristic: Faster and more stable than a mounted digger, but potatoes still land on the ground for manual collection.

Level 3: Elevator Potato Harvester (CWB-2L)

What it does: Digs 2 rows, separates through multiple sieve stages, removes haulm debris, and loads clean potatoes directly into a trailer via a 3.9 m high-reach elevator. No potatoes touch the ground. No manual picking. One tractor, one operator, field-to-trailer in a single pass.

Key characteristic: The machine does the entire job. No crew needed. No potatoes on the ground. No weather exposure after digging.

Choose a Mounted Digger (AWB-1600) if:

You have under 50 hectares and a reliable picking crew. Your tractor is 75 to 95 hp. Budget is limited and you want the lowest equipment cost. You grow for a local market where tuber appearance is less critical. You are starting out and want to mechanize the hardest part (digging) while labor handles collection.

Choose a Trailed Digger (AWB Trailed) if:

You have 50 to 150 hectares and need to cover more ground per day than a mounted digger allows. Your fields are long and benefit from higher speed (5-10 km/h). You want better stability on uneven ground. You still have access to a picking crew but need faster digging to keep the crew continuously supplied.

Choose an Elevator Harvester (CWB-2L) if:

You have 50+ hectares and want to eliminate the picking crew entirely. Labor is expensive, unreliable, or unavailable in your region. You want the highest tuber quality (no ground contact, no greening, no weather exposure). You value operational independence — one tractor, one operator, predictable daily output regardless of crew availability.

Sign 1: You cannot finish harvest before weather deteriorates

If your digger-and-crew system consistently fails to complete harvest before autumn rains arrive, you are losing yield and quality to weather. A harvester maintains output regardless of crew issues and eliminates the weather-exposure risk for dug potatoes.

Sign 2: Your crew costs exceed the harvester’s annual depreciation

Calculate your total crew cost for one harvest season (wages, transport, meals, supervision, insurance). If this exceeds 20 to 25 percent of a CWB-2L’s purchase price, the harvester pays for itself within 4 to 5 seasons — and every subsequent season is pure savings.

Sign 3: You are losing tubers to greening and damage on the ground

Potatoes in a windrow are exposed to sunlight (causing greening), rain (causing disease), and repeated handling (causing bruising). A harvester eliminates all three — potatoes go from soil to dark, covered trailer in seconds.

Sign 4: Crew availability is becoming unreliable

Seasonal agricultural labor is declining globally. If you are spending more time recruiting, managing, and replacing pickers than actually harvesting, the problem will only get worse. The harvester makes you independent of the labor market permanently.

Sign 5: You are expanding your potato acreage

If acreage is growing, crew requirements grow proportionally — but the harvester handles the additional area without additional labor. The harvester’s cost per hectare decreases as acreage increases, while the crew’s cost per hectare stays constant or increases.

Q1: What exactly is the difference between a digger and a harvester?

A digger lifts, sieves, and deposits potatoes in a windrow on the ground — you must then pick them up separately. A harvester lifts, sieves through multiple stages, removes debris, and loads clean potatoes directly into a trailer via an elevator. The harvester replaces the digger plus the entire picking crew plus the loading operation.

Q2: At what farm size does the harvester become more economical?

Typically 50 to 80 hectares, depending on local labor costs. At this acreage, the seasonal crew cost approaches or exceeds the harvester’s annual depreciation. Above 80 hectares, the harvester is almost always the more economical choice. Below 30 hectares, a mounted digger with a small crew is usually cheaper.

Q3: Can I start with a digger and upgrade to a harvester later?

Yes, and this is the most common growth path. Start with a mounted digger (AWB-1600), progress to a trailed digger (AWB-AAR/BAR/CAR) as acreage grows, then upgrade to the CWB-2L harvester when crew costs or availability justify the investment. Each machine retains resale value.

Q4: Does the CWB-2L harvester damage tubers more than hand picking?

On properly prepared, stone-free ground: no. The CWB-2L’s multiple sieve stages handle tubers gently with rubber-cushioned transitions. In fact, tuber quality is often better because there is no ground contact (no mud, no greening from sunlight, no re-handling). On stony ground, both diggers and harvesters produce more damage — which is why stone management is essential regardless of harvest method.

Q5: Why do trailed diggers work faster than mounted diggers?

The trailed chassis carries its own weight on independent wheels — the tractor’s rear axle is not overloaded. This allows higher working speeds (5-10 km/h versus 3-5 km/h) without sacrificing digging depth consistency. The trailed design also provides better ground following on uneven terrain.

Q6: What planter matches each harvest level?

AWB mounted digger (2-row) pairs with PAI-2100 or PANTHER 2-Row planter. AWB trailed digger pairs with PANTHER 3-Row. CWB-2L harvester pairs with PANTHER 4-Row or PAI-480-AR planter — matching high-throughput planting with high-throughput harvesting.

Q7: How does the 3.9 m elevator work?

The CWB-2L’s elevator is a rubber-cushioned conveyor belt that lifts cleaned potatoes from the sieve discharge to a height of 3.9 m, then gently deposits them into a trailer or bulk bin travelling alongside or behind the harvester. The height is sufficient to fill standard agricultural trailers and high-side bins without tipping or compacting the load.

Q8: Can I hire a harvester instead of buying?

In some regions, contractors offer CWB-2L harvesting as a per-hectare service. This is an excellent option for farms in the 50 to 80 hectare range where purchasing is not yet justified. Above 80 hectares, owning is typically more economical and guarantees harvest timing independent of contractor availability.

Q9: Do you supply all three harvest levels?

Yes. We manufacture the complete range: AWB mounted diggers (4 models, 75-95 hp), AWB trailed diggers (3 models, 95 hp), and the CWB-2L elevator harvester (100 hp). One manufacturer, one support team, factory-direct pricing.

Q10: How do I get a recommendation?

Contact our team with your potato hectarage, current crew situation, tractor fleet, and stone conditions. We will recommend the right harvest level and provide factory-direct pricing — including matched planter and seedbed equipment if you want a complete system quote.

Harvest Equipment Quote

Digger or harvester pricing

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Planter + harvester matched

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