By Kai Nakamura · Production roaster & equipment editor · Updated 2026-09-17

Stronghold S7 Pro vs Aillio Bullet R1 V2

Ceramic electric lab roasters with opposite control philosophies

↔ Split

Split verdict: Stronghold for automation depth, Bullet for induction speed and community profiles.

Hourly throughput: WinnerAutomation depth: Winner

Lowest street price → AillioFaster batches → AillioNo gas line → electric platform

Also searched: aillio bullet r1 v2 vs stronghold s7 pro

Decision picker

What is your primary constraint?

Capital budgetOperating cost / utilities

Batch size you roast most often?

0.7 kg or less1 kg production

Can you run dedicated electric service?

Yes — electric worksNo — need gas option

Choose Stronghold S7 Pro if

• Precision electric control matches your roast targets
• No gas line or permit required
• Budget allows $11,500 USD equipment plus install

Choose Aillio Bullet R1 V2 if

• Best value sample roaster matches your roast targets
• No gas line or permit required
• Lead time under 8 weeks is critical

Specification matrix

Show differences only

Manufacturer specs and dealer quotes. Throughput model uses SCA 4-minute cooling allowance. Verify all numbers with OEM before purchase.
Spec	Stronghold S7 Pro	Aillio Bullet R1 V2
Batch capacity	0.7 kg	1 kg
Heat source	3.8 kW electric	3 kW electric
Drum / chamber	Ceramic-lined electric drum	Induction drum
Batch time (typical)	7 min	8 min
Throughput (modelled)	3.8 kg/h	5 kg/h
Street price band	$11,500 USD	$4,800 USD
Exhaust	120 CFM	100 CFM
Lead time	8 wks — confirm with dealer	4 wks — confirm with dealer
Automation	Stronghold app	RoastWorld cloud + local app
Service hub	South Korea	Taiwan

Batch capacity

Stronghold

0.7 kg

Aillio

1 kg

Heat source

Stronghold

3.8 kW electric

Aillio

3 kW electric

Drum / chamber

Stronghold

Ceramic-lined electric drum

Aillio

Induction drum

Batch time (typical)

Stronghold

7 min

Aillio

8 min

Throughput (modelled)

Stronghold

3.8 kg/h

Aillio

5 kg/h

Street price band

Stronghold

$11,500 USD

Aillio

$4,800 USD

Exhaust

Stronghold

120 CFM

Aillio

100 CFM

Lead time

Stronghold

8 wks — confirm with dealer

Aillio

4 wks — confirm with dealer

Automation

Stronghold

Stronghold app

Aillio

RoastWorld cloud + local app

Service hub

Stronghold

South Korea

Aillio

Taiwan

ProV2

Qualitative scores — verify against your roast program

Why this split

Neither platform dominates — Stronghold Technology and Aillio split on the constraint you named in the picker.

Deep dives

What to verify with your dealer

Neither OEM publishes binding street prices — quotes move with queue and freight.

Verify with vendor

• Confirm Stronghold S7 Pro lead time and freight to your dock
• Confirm Aillio Bullet R1 V2 install kit and probe package included
• Ask for three references at similar elevation and batch size

Side-by-side

Stronghold Technology strengths & gaps

Precision electric control
Automated profiling
Small batch only

Aillio strengths & gaps

Best value sample roaster
Active community
1 kg ceiling

FAQ

Looking for aillio bullet r1 v2 vs stronghold s7 pro?

Same comparison — Stronghold S7 Pro is listed first by convention. Verdict and spec matrix are identical either way.

What throughput can I expect?

Modelled: 3.8 kg/h (Stronghold S7 Pro) vs 5 kg/h (Aillio Bullet R1 V2) including a 4-minute charge/cool cycle.

What street price should I budget?

Stronghold S7 Pro: $11,500 USD (As quoted Q1 2026, KR/US dealer). Aillio Bullet R1 V2: $4,800 USD (As quoted Q1 2026, direct). Request refreshed quotes — neither includes install.

Which supports Cropster logging?

Stronghold S7 Pro: Aftermarket probe required. Aillio Bullet R1 V2: Aftermarket probe required.

Decision picker

Specification matrix

Why this split

Deep dives

Side-by-side

Stronghold Technology strengths & gaps

Aillio strengths & gaps

FAQ

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