By Kai Nakamura · Production roaster & equipment editor · Updated 2026-09-17
Loring S35 Kestrel vs Probat P25 III
Convection recirculation vs conventional drum heat transfer
Probat P25 III wins on installed cost — confirm Loring dealer support in your region before ruling it out.
Also searched: probat p25 iii vs loring s35 kestrel
Decision picker
Specification matrix
| Spec | Loring S35 Kestrel | Probat P25 III |
|---|---|---|
| Batch capacity | 35 kg | 25 kg |
| Heat source | 650,000 BTU/h gas | 750,000 BTU/h gas |
| Drum / chamber | Single-wall steel | Cast-iron drum |
| Batch time (typical) | 14 min | 16 min |
| Throughput (modelled) | 116.7 kg/h | 75 kg/h |
| Street price band | $320,000 USD | $195,000 USD |
| Exhaust | 1400 CFM | 1300 CFM |
| Lead time | 32 wks — confirm with dealer | 22 wks — confirm with dealer |
| Automation | Smart Roast PLC | Probatronic 800 standard |
| Service hub | USA | Germany |
Batch capacity
Loring
35 kgProbat
25 kgHeat source
Loring
650,000 BTU/h gasProbat
750,000 BTU/h gasDrum / chamber
Loring
Single-wall steelProbat
Cast-iron drumBatch time (typical)
Loring
14 minProbat
16 minThroughput (modelled)
Loring
116.7 kg/hProbat
75 kg/hStreet price band
Loring
$320,000 USDProbat
$195,000 USDExhaust
Loring
1400 CFMProbat
1300 CFMLead time
Loring
32 wks — confirm with dealerProbat
22 wks — confirm with dealerAutomation
Loring
Smart Roast PLCProbat
Probatronic 800 standardService hub
Loring
USAProbat
GermanyQualitative scores — verify against your roast program
Why this split
Probat P25 III leads on the weighted score for most boutiques we modelled.
Loring stays competitive when industrial throughput outweighs the price gap.
Deep dives
Recirculation vs open exhaust
Loring S35 Kestrel recirculates hot gas — exhaust temperature drops and afterburner load shrinks.
Open-drum platforms vent more heat per batch. Model your gas meter at 50% and 75% charge before signing.
Verify with vendor
- • Request OEM combustion efficiency curve
- • Confirm AHJ afterburner requirement for your address
IR radiant heat transfer
Diedrich IR drums radiate through a double-wall — different first-crack timing than convection.
Operators switching from Probat or Giesen need 15–20 calibration batches, not a copied profile.
- Log development time ratio across 3 charge weights
- Compare ground colour at same end temp
What to verify with your dealer
Neither OEM publishes binding street prices — quotes move with queue and freight.
Verify with vendor
- • Confirm Loring S35 Kestrel lead time and freight to your dock
- • Confirm Probat P25 III install kit and probe package included
- • Ask for three references at similar elevation and batch size
Side-by-side
Loring strengths & gaps
- Industrial throughput
- Best-in-class efficiency
- Major facility requirements
Probat strengths & gaps
- Production volume
- Probat service worldwide
- High gas usage