Busch Industrial Vacuum Pump - 28 CFM - Model 040-138 - 2HP 3-Phase

Busch 040-138 Rotary Vane Vacuum Pump

2 HP | 28 CFM | 29.3" HgV | Industrial Heavy-Duty

Available for sale is a high-performance Busch 040-138 rotary vane vacuum pump. Known for its rugged "all-rounder" design, this 28 CFM pump is an industry workhorse, perfect for applications ranging from food packaging to central vacuum systems. This is an oil-sealed, air-cooled, direct-drive unit designed for continuous operation and low vibration.

Technical Specifications

• Model: 040-138 (R5 RA 0040 compatible)
• Motor: 2 HP
• Nominal Displacement: 28 CFM (at 60Hz)
• Ultimate Vacuum: 29.3” HgV (approximately 1.5 - 2.0 mbar)
• Operating Speed: 1725 RPM
• Electrical: 230/460V, 3-Phase (145TC Frame)
• Oil Capacity: 1 Quart
• Weight: ~130 lbs

Key Features & Performance

• Quiet & Reliable: Designed with noise levels around 66 dBA, making it one of the quietest pumps in its class for indoor facility use.
• Direct Drive Design: The motor is coupled directly to the pump, eliminating the maintenance and potential failure points of belt-driven systems.
• Integrated Separation: Includes a built-in exhaust oil-air separator, ensuring that the discharge air is clean and free of oil mist.
• Air-Cooled: Does not require cooling water, significantly reducing utility costs and simplifying installation.
• Compact Footprint: Ideal for mounting under CNC tables or inside of packaging machines where space is limited.