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120-Gallon Air Compressors

120-gallon air compressors hold a large air reserve for high-demand shops running several tools at once. Two-stage simplex and duplex models, 5 to 15 HP, up to 175 PSI, in single-phase and three-phase.

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Mi-T-M ACD-23175-120H Duplex Air Compressor – 7.5 HP, 120-Gal, 46.4 CFM, 230V

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ACD-23175-120H Duplex Air Compressor for Shop Floor Pneumatic Service Mi-T-M ACD-23175-120H delivers commercial duplex air compressor output in a ...

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Mi-T-M AES-23315-120HM Air Compressor – 15 HP, 120-Gal, 46.5 CFM, 230V 3-Phase

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AES-23315-120HM Air Compressor for Shop Floor Pneumatic Service Mi-T-M AES-23315-120HM delivers commercial air compressor output in a factory-buil...

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Mi-T-M AES-23315-120H Air Compressor – 15 HP, 120-Gal, 46.5 CFM, 230V 3-Phase

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AES-23315-120H Air Compressor for Shop Floor Pneumatic Service Mi-T-M AES-23315-120H delivers commercial air compressor output in a factory-build ...

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$17,083.00
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Mi-T-M AED-46315-120HM Duplex Compressor – 93.0 CFM @ 175 PSI, 120-Gal, 460V 3Ø

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AED-46315-120HM 15.0 HP Two-Stage Duplex Air Compressor The Mi-T-M AED-46315-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M AED-23315-120HM Duplex Compressor – 93.0 CFM @ 175 PSI, 120-Gal, 230V 3Ø

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AED-23315-120HM 15.0 HP Two-Stage Duplex Air Compressor The Mi-T-M AED-23315-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M AED-20315-120HM Duplex Compressor – 93.0 CFM @ 175 PSI, 120-Gal, 200V 3Ø

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AED-20315-120HM 15.0 HP Two-Stage Duplex Air Compressor The Mi-T-M AED-20315-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M ADD-46310-120HM Duplex Compressor – 68.4 CFM @ 175 PSI, 120-Gal, 460V 3Ø

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ADD-46310-120HM 10.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ADD-46310-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M ADD-23310-120HM Duplex Compressor – 68.4 CFM @ 175 PSI, 120-Gal, 230V 3Ø

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ADD-23310-120HM 10.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ADD-23310-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M ADD-20310-120HM Duplex Compressor – 68.4 CFM @ 175 PSI, 120-Gal, 200V 3Ø

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ADD-20310-120HM 10.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ADD-20310-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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Mi-T-M ADD-23110-120HM Duplex Compressor – 68.4 CFM @ 175 PSI, 120-Gal, 230V 1Ø

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ADD-23110-120HM 10.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ADD-23110-120HM is a 120-gallon horizontal two-stage air compressor built for sh...

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$10,546.00
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Mi-T-M ACD-46375-120HM Duplex Compressor – 46.4 CFM @ 175 PSI, 120-Gal, 460V 3Ø

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ACD-46375-120HM 7.5 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-46375-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,484.00
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Mi-T-M ACD-23375-120HM Duplex Compressor – 46.4 CFM @ 175 PSI, 120-Gal, 230V 3Ø

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ACD-23375-120HM 7.5 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-23375-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,820.00
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Mi-T-M ACD-20375-120HM Duplex Compressor – 46.4 CFM @ 175 PSI, 120-Gal, 200V 3Ø

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ACD-20375-120HM 7.5 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-20375-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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Mi-T-M ACD-23175-120HM Air Compressor – 7.5 HP, 120-Gal Horizontal, 230V 1φ

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ACD-23175-120HM 7.5 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-23175-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,402.00
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Mi-T-M ACD-46305-120HM Duplex Compressor – 36.0 CFM @ 175 PSI, 120-Gal, 460V 3Ø

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ACD-46305-120HM 5.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-46305-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,273.00
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Mi-T-M ACD-23305-120HM Duplex Compressor – 36.0 CFM @ 175 PSI, 120-Gal, 230V 3Ø

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ACD-23305-120HM 5.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-23305-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,281.00
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Mi-T-M ACD-20305-120HM Duplex Compressor – 36 CFM @ 175 PSI, 120-Gal Horizontal

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ACD-20305-120HM 5.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-20305-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$10,147.00
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Mi-T-M ACD-23105-120HM Duplex Compressor – 36 CFM @ 175 PSI, 120-Gal, 230V 1φ

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ACD-23105-120HM 5.0 HP Two-Stage Duplex Air Compressor The Mi-T-M ACD-23105-120HM is a 120-gallon horizontal two-stage air compressor built for sho...

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$9,779.00
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Mi-T-M AES-46315-120HM Simplex Compressor – 46.5 CFM @ 175 PSI, 120-Gal, 460V 3Ø

Mi-T-M
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AES-46315-120HM 15.0 HP Two-Stage Simplex Air Compressor The Mi-T-M AES-46315-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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$9,978.00
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Mi-T-M AES-20315-120HM Simplex Compressor – 46.5 CFM @ 175 PSI, 120-Gal, 200V 3Ø

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AES-20315-120HM 15.0 HP Two-Stage Simplex Air Compressor The Mi-T-M AES-20315-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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$8,094.00
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Mi-T-M ADS-46310-120HM Simplex Compressor – 34.2 CFM @ 175 PSI, 120-Gal, 460V 3Ø

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ADS-46310-120HM 10.0 HP Two-Stage Simplex Air Compressor The Mi-T-M ADS-46310-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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$8,135.00
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Mi-T-M ADS-23310-120HM Simplex Compressor – 34.2 CFM @ 175 PSI, 120-Gal, 230V 3Ø

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ADS-23310-120HM 10.0 HP Two-Stage Simplex Air Compressor The Mi-T-M ADS-23310-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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$8,280.00
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Mi-T-M ADS-20310-120HM Simplex Compressor – 34.2 CFM @ 175 PSI, 120-Gal, 200V 3Ø

Mi-T-M
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ADS-20310-120HM 10.0 HP Two-Stage Simplex Air Compressor The Mi-T-M ADS-20310-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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$8,995.00
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Mi-T-M ADS-23110-120HM Simplex Compressor – 34.2 CFM @ 175 PSI, 120-Gal, 230V 1Ø

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ADS-23110-120HM 10.0 HP Two-Stage Simplex Air Compressor The Mi-T-M ADS-23110-120HM is a 120-gallon horizontal two-stage air compressor built for s...

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120-Gallon Air Compressors for High-Demand Shops

A Bigger Reserve Means Fewer Motor Cycles

A 120-gallon tank stores more compressed air than an 80-gallon unit, so the motor cycles less often and the pump keeps up when several tools draw at once. That reserve is what separates a busy multi-bay service floor from a single-operator shop: when three techs hit impact wrenches at the same time, the larger tank holds pressure while the pump catches up. Every model here is two-stage with a cast-iron pump rated to 175 PSI for continuous-duty work.

Simplex or Duplex Output

Simplex 120-gallon models run one pump and motor and cover 10 to 15 HP demand. Duplex models put two pumps and motors on the single 120-gallon tank, which doubles output for a high-demand floor and provides redundancy: if one head goes down for service, the other keeps the shop running. Duplex units with magnetic starters add auto-alternating lead and lag control so the two motors share wear evenly. For pressurized-system safety, review the OSHA compressed-gas equipment guidance.

Power and Placement

These are three-phase-friendly units; 10 HP models come in single or three-phase, and 15 HP is three-phase only. All are horizontal for a low, stable footprint and ship by freight at roughly 830 to 1,760 pounds, so plan for a dock or liftgate. Related: Air Compressors · Electric Air Compressors · 80-Gallon Air Compressors. For a high-output floor, the AED-46315 15 HP duplex compressor delivers 93 CFM at 175 PSI.

Frequently Asked Questions

How much space does a 120-gallon air compressor cover?
Tank size is about reserve capacity, not coverage. A 120-gallon unit stores enough air to run multiple tools at once without the motor short-cycling, which suits a multi-bay shop or busy service floor.
What is a duplex 120-gallon compressor?
A duplex unit mounts two separate pump-and-motor assemblies on one 120-gallon tank. They alternate or run together for higher output and redundancy, so the shop keeps running if one head needs service.
What horsepower comes on a 120-gallon compressor?
Mi-T-M 120-gallon models run 10 HP simplex, 15 HP simplex, and 5 to 15 HP duplex configurations. Higher horsepower delivers more CFM for heavier or simultaneous tool use.
Does a 120-gallon compressor need three-phase power?
Some do. The 10 HP models come in single-phase or three-phase; 15 HP models are three-phase only. Confirm your building has the right service before ordering.

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