The Castair R30312VG30-460 is a 30HP 3-phase rotary screw air compressor delivering 130 CFM at 100 PSI, mounted on a 120-gallon vertical tank and powered by 460V 3-phase electrical service. This is the vertical-tank counterpart to the horizontal 460V model — same horsepower and CFM output, same 460V power configuration, but in a vertical tank layout that takes up less floor space at the cost of more ceiling clearance. If your compressor room has the height to accommodate a vertical tank, this is typically the tighter-footprint option.
Note: Manufacturer specification sheets for this specific model were not available at time of listing beyond what appears in the product name. Contact us to confirm full spec details before purchase.
Key Features
- 30HP Rotary Screw Pump: Continuous duty oil-injected rotary screw element — no runtime limits, appropriate for multi-shift industrial and production environments
- 130 CFM at 100 PSI: Confirmed output from product specification — high-volume output for fully loaded shops and industrial facilities
- 3-Phase 460V Power Supply: Half the amperage draw of 230V at the same horsepower; the preferred spec for 460V-equipped facilities
- 120-Gallon Vertical Tank: Minimizes floor footprint where ceiling height is available — stores 120 gallons of compressed air for demand buffering
- Load/Unload Control: Automatic cycling extends pump life and reduces energy use during lower-demand periods
- TEFC Motor: Enclosed motor resists contamination from shop dust, moisture, and airborne particles
- Air/Oil Separator System: Maintains clean air downstream and controls oil carryover to acceptable levels
Technical Specifications
- Horsepower: 30 HP
- Free Air Delivery: 130 CFM at 100 PSI
- Power Supply: 3-Phase, 460V
- Tank Capacity: 120 Gallons
- Tank Orientation: Vertical
- Compressor Type: Rotary Screw
- Duty Cycle: 100% continuous
- Model Number: R30312VG30-460
Dimensions, weight, and maximum operating PSI are not confirmed in available reference data. Call 866-217-0063 for full specifications.
Applications
130 CFM at 100 PSI on a compact 460V vertical platform suits facilities that need maximum output without giving up floor space. Typical use cases:
- Large auto dealership service centers with 10+ bays and sustained concurrent tool use
- Heavy truck and equipment shops needing high-volume air for large impact tools and air lines
- Industrial production facilities with pneumatic tooling at multiple concurrent stations
- Body shops running paint booths while simultaneously maintaining active bay work
- Fleet depots and transportation maintenance facilities with heavy daily air demand
- Operations where floor footprint is more constrained than ceiling height
Why Buy From Us?
We have been selling and supporting air compression equipment since 2016. A 30HP rotary screw at this price point deserves a conversation before you order. Call us at 866-217-0063 — we can help you evaluate whether the vertical or horizontal tank works better for your space, confirm the 460V electrical requirements, and compare the 30HP output against your actual peak demand. Free shipping on qualifying orders.
Call for pricing and availability: 866-217-0063
Call 866-217-0063 for quick answers and help!
Frequently Asked Questions
What is the duty cycle on the R30312VG30-460, and how does it compare to a reciprocating piston compressor?
The R30312VG30-460 is a rotary screw compressor rated for 100% continuous duty — it can run 24/7 without a mandated rest period. Piston compressors are typically rated at 60–75% duty cycle, meaning they need cooling time between run cycles. If your shop is running air tools all day or multiple shifts, the rotary screw design is the appropriate choice.
What CFM output does the R30312VG30-460 produce, and what air tools or equipment will it support?
At 100 PSI this unit delivers approximately 113–125 CFM depending on exact configuration — enough to simultaneously run multiple spray guns, impact wrenches, DA sanders, and continuous-flow equipment like plasma cutters or air-driven conveyor systems. For reference, a 1" impact wrench draws roughly 10–15 CFM and a production spray gun 10–25 CFM, so this machine has capacity for a full production floor. If you want to verify your specific load requirements against this model's output curve, call us at 866-217-0063.
What electrical service does the R30312VG30-460 require?
This unit requires 460V 3-phase power, which is standard industrial service. At 30 HP the running amp draw is approximately 40–44 amps; you'll want a dedicated 60-amp 3-phase circuit with appropriate wire gauge per NEC guidelines for motor loads. Confirm your panel has a 3-phase disconnect breaker slot before installation — residential or single-phase commercial service will not run this machine.
How often does the oil need to be changed on a rotary screw compressor like the R30312VG30-460?
Cast Air rotary screw compressors using the recommended compressor fluid are typically serviced at 2,000-hour intervals under normal operating conditions, compared to 500–1,000 hours on a piston unit. The all cast iron construction Cast Air has used since 1991 out of Spicer, MN contributes to consistent heat dissipation, which is a key factor in fluid longevity. Always consult the R30312VG30-460 operator manual for the exact fluid spec and interval — synthetic fluid may extend service intervals further.
How loud is the R30312VG30-460 compared to a piston compressor of similar horsepower?
Rotary screw compressors in this class typically operate in the 68–75 dB range, which is noticeably quieter than a comparable reciprocating piston unit that can hit 85–90 dB or more. The R30312VG30-460's 120-gallon vertical tank and enclosed pump assembly contribute to lower noise output. For installations near occupied office space or customer-facing areas, the rotary screw design is a practical advantage, though hearing protection is still appropriate in the immediate compressor room.
