Atlas Copco LT Series Base Mount Compressors

Atlas Copco LT Series Base Mount Compressors

Heavy-Duty, Tankless Pneumatic Power for Custom Industrial Integration

When you need the premium performance and industry-leading low operating temperatures of an Atlas Copco LT piston compressor, but prefer to pipe it into your own specialized air receiver system, the Base Mount (BM) series is the ideal solution.

Unlike standard tank-mounted units, the Base Mount series provides the legendary LT bare block and an industrial-grade electric motor mounted securely to a rugged steel baseplate. This tankless, floor-ready configuration is perfect for OEM applications, tight mechanical rooms, or facilities looking to upgrade their air production while utilizing existing high-capacity storage tanks.

Below is an overview of the LT Base Mount lineup, categorized by maximum pressure output.

Decoding the Base Mount Nomenclature

• BM: Base Mount (Tankless, floor-ready baseplate configuration).
• CV / UV: Indicates the regulation type—CV (Check Valve) for standard Start/Stop operation, and UV (Unloading Valve) for Continuous Run operation.
• 230/3/60, 460/3/60, or 230-460/3/60: The electrical requirements—voltage (230V, 460V, or dual), 3-Phase, 60 Hz.
• DOL / YD: The motor starter type. DOL (Direct On Line) provides full voltage at startup, while YD (Wye-Delta) steps up the power gradually to prevent electrical grid surges on larger motors.
• ASME / APE / API / CE / MEAF: Designates compliance with specific regional safety codes, factory standards, or specialized OEM build parameters.

The 10-Bar Series: Standard Industrial Pressure (145 PSI)

Models: LT2-10 CV BM 230/3/60 APE, LT3-10 CV BM 230/3/60 APE, LT4-10 CV BM 460/3/60 DOL MEAF, LT5-10 CV BM – 230/3/60 APE, LT7-10 CV BM – 230/3/60 APE, LT7-10 UV BM – 230/3/60 APE, LT3-10 CV BM 460/3/60 DOL API, LT5-10 CV BM 460/3/60 APE, LT5-10 UV BM 460/3/60 YD API, LT7-10 UV BM 460/3/60 APE, LT10-10 UV BM 460/3/60 APE

The backbone of general industrial operations, these single-stage base mount units provide maximum airflow for everyday pneumatic tools and manufacturing machinery.

• Power Range: 2 HP to 10 HP
• Performance: Single-stage compression delivering a highly efficient 145 PSI.
• Best For: Auto repair facilities, woodworking shops, general manufacturing plants, and replacing older compressor units on existing 120+ gallon horizontal tanks.

The 15-Bar Series: Medium-High Pressure (218 PSI)

Models: LT2-15 CV BM 230/3/60 DOL MEAF, LT2-15 CV BM 460/3/60 DOL MEAF, LT3-15CV BM 230/3/60 DOL MEAF, LT3-15CV BM 460/3/60 DOL MEAF, LT5-15CV BM 230/3/60 DOL MEAF, LT5-15CV BM 460/3/60 YD MEAF, LT7-15CV BM 230/3/60 DOL MEAF, LT7-15CV BM 460/3/60 YD MEAF, LT10-15CV BM 460/3/60 DOL MEAF, LT15-15CV BM 460/3/60 DOL MEAF, LT20-15CV BM 460/3/60 DOL MEAF

Upgrading to two-stage compression, the 15-bar Base Mounts easily handle heavy commercial demands where higher PSI is necessary to break loose heavy fasteners or run specialized equipment.

• Power Range: 2 HP up to a massive 20 HP
• Performance: Two-stage compression safely delivering 218 PSI with finned intercooling.
• Best For: Commercial truck fleet maintenance, heavy-duty tire shops, and specialized manufacturing where a step up in pressure is required alongside standard air delivery.

The 20-Bar Series: High-Pressure Industrial (290 PSI)

Models: LT2-20CV BM 230/3/60 ASME, LT2-20 CV BM 230-460/3/60 ASME, LT3-20CV BM 460/3/60 DOL MEAF, LT5-20UV BM-230-460/3/60CE, LT7-20CV BM 460/3/60 ASME, LT10-20CV BM 460/3/60 ASME, LT15-20CV BM 460/3/60 DOL MEAF, LT20-20CV BM 460/3/60 ASME

Built for rigorous environments where standard compressors stall or overheat, the 20-bar Base Mounts feature strict internal tolerances designed to continuously output 290 PSI.

• Power Range: 2 HP to 20 HP
• Electrical Versatility: Many models feature dual-voltage capability and CE/ASME compliance, ensuring they integrate easily into varied global or domestic electrical grids.
• Best For: Plastics molding, industrial pressure testing, heavy fleet mechanics, and demanding pneumatic systems requiring exceptionally high pressure without sacrificing pump lifespan.

The 30-Bar Series: Ultra-High Pressure (435 PSI)

Models: LT3-30CV BM 230/3/60 ASME, LT3-30CV BM 460/3/60 ASME, LT7-30CV BM – 230/3/60 ASME, LT7-30CV BM 460/3/60 ASME, LT7-30UV BM 460/3/60 ASME, LT15-30CV BM 460/3/60 ASME, LT20-30CV BM 460/3/60 ASME

The absolute highest pressure rating in the Atlas Copco piston lineup. These highly specialized two-stage compressors are engineered to safely output an incredible 435 PSI for the most advanced industrial processes.

• Power Range: 3 HP to 20 HP
• Performance: Extreme-pressure two-stage compression built with highly conductive materials to mitigate the extreme heat generated at 435 PSI.
• Best For: Commercial PET bottle blowing, marine engine start-up systems, specialized high-pressure gas storage, and ultra-high-pressure industrial testing facilities.

Shared Premium Features Across All Base Mount Models:

• Rigid Baseplate Design: Pre-mounted on a heavy-duty steel base frame with pre-drilled anchoring points, eliminating the guesswork of proper motor-to-pump alignment and heavily reducing kinetic vibration.
• Direct & V-Belt Configurations: Factory-tensioned drives ensure immediate power transfer from the 3-phase motor to the compressor block.
• V-Cylinder Architecture: The block’s unique V-shape provides exceptional natural balance, drastically lowering noise and vibration compared to standard inline pumps.
• Industry-Leading Thermal Management: Constructed entirely with lightweight aluminum and deeply finned cylinders, these units boast the lowest operating temperatures in their class, meaning less oil carryover and significantly longer part life.