Castair 43HP 3-Phase Rotary Screw Air Compressor Horizontal 460V — R433HP60-460
The Castair R433HP60-460 is a 3-phase, 460-volt horizontal rotary screw air compressor with a 60-gallon receiver tank. This is the 460V variant of the same platform as the R433HP60-230 — same compressor, same tank, different motor wiring. If your facility runs 460V 3-phase power, this is the configuration you need. Do not order the 230V unit and try to adapt it. Confirm your panel voltage before purchasing.
460V 3-phase is common in manufacturing plants, larger commercial garages, agricultural facilities, and industrial buildings. If your shop has 460V service, the 460V motor variant runs at roughly half the amperage of the equivalent 230V motor — smaller wire gauges, smaller breakers, and less voltage drop on long runs from the panel to the compressor location.
Note: The R433HP60-460 was not listed individually on Castair's website at time of writing. Specifications below are based on Castair's rotary screw product line structure and model number data. Contact 866-217-0063 for confirmed specs.
460V vs. 230V — Practical Considerations
- Half the amperage, same horsepower: A 4HP motor at 460V draws approximately half the amperage of the same motor at 230V. This means smaller wire gauge for the same run length, lower I²R losses, and less heat in the wiring.
- Required for 460V facilities: If your building is wired for 460V 3-phase only, the 230V unit is not an option. Order the 460V variant.
- Not interchangeable: A 230V 3-phase motor cannot run on 460V service without rewinding or a step-down transformer. Order the correct voltage for your installation.
- Pre-wired and ready: Castair ships the magnetic starter and controls mounted and pre-wired. You connect the 460V supply — the unit is ready to run.
Horizontal Tank — Low Profile Installation
- Low ceiling compatibility: Horizontal 60-gallon configuration minimizes overall installation height compared to vertical tanks.
- Stable, low center of gravity: Horizontal orientation suits environments with vibration or space constraints that favor a lower profile.
- Longer floor footprint: Measure available wall space. Horizontal tanks trade height for length — plan accordingly.
- ASME-rated tank: Required for commercial installation and insurance compliance in most jurisdictions.
Castair Rotary Screw Build Quality
- 100% duty cycle: Continuous operation without piston-style heat buildup or valve wear limitations.
- Single solenoid air end control: No computerized control panels. One solenoid, readable gauges, field-repairable design.
- Industrial 1725 RPM motor with full 15% service factor: Built for commercial duty. Runs cool, lasts long.
- Cast iron construction: Castair's entire line is cast iron — not aluminum. Handles thermal cycling and long-term shop use.
- Built-in air/oil separator with spin-on filter: Keeps oil out of the air supply. Standard spin-on replacement.
- Off-shelf V-belts with adjustable tensioner: Standard belts from any industrial supply.
- Air/oil lines in copper pipe: Heat-resistant, vibration-resistant. Standard fittings.
- Air-cooled aftercooler/oil cooler standard: Removable for cleaning.
- Factory-filled with Cast-Lube synthetic oil: 4,000-hour or one-year change interval.
- Hour meter standard: Track actual run hours.
- 10-minute auto shutdown timer: Energy savings during idle periods.
- Pressure options: 135 PSI standard, 150 or 175 PSI available.
- 2-year warranty on air end, motor, and tank
Available Configurations
- 230V variant: R433HP60-230 — same unit wired for 230V 3-phase
- 5HP, 3-Phase, 80 Gal Horizontal (R538HP75): 20 CFM @ 100 PSI — 470 lbs — 64×32×44"
- 7.5HP, 3-Phase, 80 Gal Horizontal (R738HP75): 31 CFM @ 100 PSI — 546 lbs — 64×32×44"
- 5HP base mount, 460V (R43BMP60-460): No tank, 5HP, 460V 3-phase
When Does a Shop Need This vs. Stepping Up or Down?
- Right for: 460V 3-phase facility with moderate air demand. One primary work area running air tools intermittently.
- Step up to 5HP (R538HP75-460) if: Demand is continuous or multiple techs run air tools simultaneously.
- Confirm voltage before ordering: 460V and 230V units look identical. The motor winding is the difference. Wrong voltage = burned motor.
Technical Specifications
- Model: R433HP60-460
- Horsepower: Approximately 4HP (verify with Castair)
- Phase: 3-Phase
- Voltage: 460V
- Tank: 60 gallon, horizontal, ASME-rated
- Compressor Type: Rotary screw
- Duty Cycle: 100%
- Standard Pressure: 135 PSI (150 or 175 PSI available)
- Lubrication: Oil-injected, synthetic lubricant
- Drive: Belt drive, standard V-belts
- Motor Speed: 1725 RPM industrial motor
- Controls: Single solenoid, pre-wired magnetic starter, hour meter, 10-minute auto shutdown
- Warranty: 2-year on air end, motor, and tank
- Manufacturer: Castair (Spicer, Minnesota)
CFM, exact dimensions, and weight pending manufacturer confirmation. Call 866-217-0063 for current data sheet.
What's in the Box
- Castair rotary screw compressor mounted on 60-gallon horizontal ASME tank
- Pre-wired magnetic starter and controls for 460V 3-phase
- Air/oil separator with spin-on filter
- Air-cooled aftercooler/oil cooler
- Hour meter
- Pre-filled with Cast-Lube synthetic oil
Why Buy From Air Compressor Factory Direct?
- Castair specialists: We know the voltage variants and can confirm the right unit for your panel configuration
- Free shipping on qualifying orders
- Free technical support: Call 866-217-0063 before ordering if you have questions about voltage or sizing
- Full manufacturer warranty honored and supported
- Honest guidance: If a different model fits your operation better, we'll tell you
Call 866-217-0063 for quick answers and help!
