Coltri MCH-6 EM (single-phase electric)
Specifications
- Max pressure
- 4,351 psi (300 bar)
- Cooling
- air, splash lubrication
- Moisture handling
- EN12021 breathing-air filtration; pressure-maintaining valve (PMV) and automatic condensate drain available as options
- Auto-stop
- Yes
- Noise
- 91 dB
- Weight
- 87 lb
- Vessel guidance
- Dive, firefighting, and paintball tank filling; a long-standing airgun community favorite for large carbon tanks
- Also sold as
- Coltri/Nuvair MCH-6, MCH6 EM
Estimated fill times
| Vessel | 0 → 250 bar | 200 → 300 bar |
|---|---|---|
| gun cylinder 0.3L | 0.9 min | 0.4 min |
| 1L bottle | 3.1 min | 1.2 min |
| 2L bottle | 6.2 min | 2.5 min |
| 3L bottle | 9.4 min | 3.8 min |
| 6.8L (74ci) tank | 21.2 min | 8.5 min |
| 9L (97ci) tank | 28.1 min | 11.2 min |
All values estimated from stated manufacturer or reviewer benchmarks (1 benchmark); 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 Coltri
Coltri is an Italian breathing-air compressor maker whose MCH-6 portable has long served double duty in the airgun world as the buy-once tank-filling solution. It is a true dive-grade machine, EN12021 certified for breathing air, and the pump many owners recognize inside other badges: the Daystate T2 is built around a Coltri-derived unit minus Coltri's own filter stack. Nuvair imports, tests, and configures every unit before shipping, and offers the newer, lighter Icon line as the MCH-6's successor.
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Open my locker →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.