The Airgun Resource Center. Early access
The Airgun Resource Center Early access
‹ All air fill gear
PCP compressor · portable

Orcair Thunder

4,500 psi / 300 bar oil-free auto-stop direct gun fills

Specifications

Max pressure
4,500 psi (300 bar)
Cooling
dual-fan
Moisture handling
oil-moisture filter integrated at one end of the hose
Auto-stop
Yes
Vessel guidance
Manufacturer states this model refills vessels up to 1.6L; low noise emphasized in marketing

Estimated fill times

Vessel0 → 250 bar200 → 300 bar
gun cylinder 0.3L7.7 min3.1 min
1L bottle25.8 min10.3 min
2L bottle51.6 min20.6 min
3L bottle77.4 min30.9 min
6.8L (74ci) tank175.3 min70.1 min
9L (97ci) tank232.1 min92.8 min

All values estimated from stated manufacturer or reviewer benchmarks (3 benchmarks); treat as run-time, not wall-time, past the unit's duty-cycle guidance.

Where to buy

Prices captured 2026-07-06; follow the link for current pricing and stock.

About Orcair

OR
Orcair
China (Amazon-native brand)

Orcair markets itself on being the smallest PCP compressor on the market at roughly 5kg, and the current Thunder model backs that pitch with a dual-fan cooled 350W unit that fills a 0.5L tank from empty to 4500 psi in 16 minutes. It was previously roster-listed in this database as an Amazon-native hand pump brand pending confirmation; that earlier reference was actually to this same company's compressor line, not a separate hand pump product, and is corrected here.

All Orcair fill gear →

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Specifications come from manufacturer pages and named retailer listings; blanks mean a value wasn't published, not that it's zero. Fill-time figures are derived estimates, not lab measurements. Always follow the manufacturer's fill and duty-cycle guidance.