The BelAire 6312V4 Iron Series is a 10 HP, two-stage compressor built for facilities with 460V 3-phase power already available. That high-voltage configuration can simplify installation on large buildings and long runs from the electrical distribution, because the same motor power requires less current at 460V than at lower voltages. The compressor delivers 35 CFM at 100 PSI and 32 CFM at 175 PSI, providing substantial air capacity for demanding shop applications while maintaining useful output at its maximum working pressure. A magnetic starter is fitted, and the solid cast-iron pump is belt driven behind a fully enclosed, high-flow belt guard.
The two-stage pump compresses air in separate stages with cooling between them, allowing the machine to reach 175 PSI without the excessive heat associated with pushing the same pressure through a single-stage design. Its solid cast-iron construction is paired with automotive-style rod bearings and wrist pins, using dedicated bearing surfaces in components subject to repeated wear. The belt drive keeps the motor and pump mechanically separated, while the enclosed guard provides protection around the moving drive components without blocking cooling airflow. With 35 CFM available at 100 PSI and 32 CFM at 175 PSI, the relatively small drop between the two ratings makes this compressor well suited to applications where air demand remains high as pressure increases.
The 6312V4 is intended for industrial plants, fabrication facilities, production environments, fleet operations, and large commercial workshops where 460V 3-phase service is already part of the building's electrical infrastructure. It is particularly practical for installations where the compressor sits a significant distance from the main electrical distribution and lower current can help manage voltage drop and conductor sizing. The vertical configuration also concentrates the 80-gallon-class system upward rather than spreading it across a large floor area. For facilities that need substantial multi-user shop air and already have the appropriate 460V service, this configuration avoids paying for electrical conversion simply to operate the compressor.
Specifications
| Motor |
10-HP, 460V, 3-Phase, electric |
| Magnetic starter |
Yes |
| Amp draw / breaker |
Not published — consult a certified electrician |
| Pump |
Two-stage, solid cast iron, belt drive, splash lubrication |
| Air delivery |
35 CFM at 100 PSI; 32 CFM at 175 PSI |
| Maximum pressure |
175 PSI |
| Aftercooler |
Yes |
| Low oil shutdown |
Not fitted |
| Tank orientation |
Vertical, ASME certified |
| Tank outlet |
3/4" |
| Tank drain |
Manual |
| Dimensions |
42" long, 30" wide, 74" high |
| Weight |
830 lbs. |
| Warranty |
2 Year |
Two different tank sizes appear in this product's own data
| Tank volume |
The product title, the manufacturer's description and the tank-size specification field all state a 120-Gallon vertical tank. The feature list on this same page states that the ASME tank and safety valve provide an "80 gallon air reserve for big jobs or multiple users". One vessel cannot be both, and we will not silently publish whichever figure flatters the machine. Reserve volume is what determines how often the motor has to start, so if that governs your decision, ask us in writing and we will have BelAire confirm the vessel size before you place the order.
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Certification, Stated Honestly
The product data lists ASME certification for the pressure vessel and safety valve, covering the components that contain and release air at up to 175 PSI.
The data does not list an independent third-party safety approval for the complete electrical assembly. A pressure-vessel rating does not provide that approval. On 460V industrial equipment, electrical listing requirements may be especially important, so confirm what your insurer, plant safety policy or local electrical inspector requires before ordering.
Shipping & Delivery
Ships by freight within the lower 48 states, with shipping calculated at checkout based on your delivery address.
Plan unloading before delivery. You will need a forklift, loading dock or terminal pickup. Residential deliveries carry an additional fee, shown at checkout.
Inspect before signing. Check the crate and compressor for shipping damage and record anything you find on the bill of lading while the driver is present. A clean signed receipt can make a freight damage claim difficult to pursue.
Warranty
A 2-Year bumper-to-bumper factory warranty applies to this model with no additional purchase required. The warranty document linked on this page controls the coverage.
If a failure occurs, do not disassemble the pump, motor or other affected components before opening a claim. Photograph the condition as found, keep the assembly intact and contact us first so the manufacturer can assess the problem.
