Single-stage air vacuum blower R5125-2

Overview
The R5125-2 is a large, single-stage regenerative blower designed to deliver oil-free vacuum or compressed air with high nominal flow. Built with corrosion-resistant components and a single-phase 2.5 HP motor, it is intended for industrial applications that require continuous pressure or vacuum without contamination.

General description
The R5/R6/R6P family are motor-mounted regenerative blowers that operate as vacuum pumps or air compressors to generate high pressure or vacuum. The oil-free design minimizes wear parts and incorporates aluminum housing, impeller and cover for improved corrosion resistance and reliability.

Options and available equipment

• Standard mounted motors (cURus listed) with sealed ball bearings and integrated mufflers for noise reduction.
• Explosion-proof motor options (cURus listed) with thermal protection and double-sealed ball bearings (B10 life > 30,000 hours).
• Thermal overload protection to safeguard motor windings in case of blockage.
• Optional external silencers, variable-speed three-phase motors and IP-rated housings for outdoor use.

Typical applications
Designed for demanding environments: manufacturing, aquaculture, chemical processing, pneumatic conveying, aeration and chemical transfer.

Key features

• Thermal protection: protects motor windings against overload-related damage.
• Standard mounted motors: cURus-listed motors with sealed ball bearings and polyurea grease, integrated mufflers.
• Explosion-proof series: thermal protection, double-sealed ball bearings, airflows tested for low leakage.
• Corrosion-resistant components: aluminum housing, impeller and cover for extended service life.

Technical specifications

• Model: R5125-2
• Series: Regenerative blowers (large)
• Power (HP): 2.5
• Phase: Single-phase
• Rated voltage: 110/220–240 V AC (listed values: 110/220–240 for 50 Hz; 115/208–230 for 60 Hz)
• Current (A): 50 Hz: 18 / 9.5; 60 Hz: 22 / 12.5–11 (values per configuration)
• Open-flow capacity: 50 Hz: 130 CFM (≈ 3681 LPM); 60 Hz: 157 CFM (≈ 4446 LPM)
• Max-pressure flow: 50 Hz: 50 CFM; 60 Hz: 75 CFM
• Max-vacuum flow: 50 Hz: 33 CFM (≈ 934.5 LPM); 60 Hz: 45 CFM (≈ 1274.3 LPM)
• Continuous max. declared pressure: 65 in H₂O
• Sound level: 75 dBA
• Weight: 76 lb (34 kg)
• Dimensions (L x W x H): 16.81 x 13.56 x 13.8 in (427.0 x 344.4 x 350.5 mm)
• Mounting dimensions: 4.5 x 10.25 in (114.3 x 260.4 mm)
• Design: Oil-free, corrosion-resistant components (aluminum housing/impeller/cover)
• Approvals: cURus (compliant)
• Country of origin: United States