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Ls355 Specifications, Features & Compatibility Guide

The Sullair LS355 is a 355 kW stationary compressor designed specifically for industrial compressed air supply requiring a 100% duty cycle.6 m³/min to power high-demand industrial air networks.

Quick Answer

Considering the Sullair LS355? This 355 kW stationary rotary screw compressor is an unequivocal buy if your industrial operations demand uncompromised, continuous high-volume compressed air. With a free air delivery up to 65.6 m³/min and 13 bar pressure, it's built for 100% duty cycle in large-scale pneumatic networks and heavy manufacturing, offering verified efficiency for reduced long-term operational costs. It’s ideal for demanding Indian factories where reliability and sustained performance are paramount.

Choose the Sullair LS355 if your Indian industrial facility requires consistent, high-volume compressed air for a 100% duty cycle, prioritising verified efficiency for substantial long-term savings. However, avoid this robust 355 kW unit for residential use, low-capacity applications, or if your budget strictly prioritizes minimum initial capital expenditure over sustained, high-efficiency performance.

✓ Who Should Buy

  • • performance suitable for residential spaces.
  • •Verified efficiency of standard rating for reduced long-term operational costs.
  • •Structural stability for consistent cleaning under rigorous use cases.
  • •Hardware durability via premium components and advanced technology.
  • •Built-in grid protection with Standard power cycle voltage management.

✕ Who Should Avoid

  • •Spaces or usage requirements exceeding residential rated capacity.
  • •Installations prioritizing minimum capital expenditure over high-efficiency performance.
  • •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
  • •Environments incompatible with compressors physical and thermal dissipation specs.
Product Overview
The Sullair LS355 is a 355 kW stationary compressor designed specifically for industrial compressed air supply requiring a 100% duty cycle. Utilizing an oil-injected rotary screw pump, it achieves a free air delivery between 46.1 and 65.6 m³/min to power high-demand industrial air networks. The unit weighs 7800 kg and measures 4200 x 2200 x 2450 mm, requiring a dedicated floor installation with its powder-coated industrial steel enclosure. Technical performance is managed by a smart controller with a digital display, providing real-time self-diagnostics and alarm indications for pressure and temperature. With a 13 bar max pressure capability and direct-drive efficiency, the LS355 supports large pneumatic systems via a DN100 connection. Safety is maintained through active features including a low-oil shutdown, thermal protection, and a built-in moisture separator to protect downstream tools.

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Engineering Analysis
The Sullair LS355 engineering focuses on high-mass stabilization, with a 7800 kg chassis and anti-vibration mounts to counteract the torque of its 355 kW direct-drive motor. The oil-injected pump architecture is optimized for 13 bar performance, using a moisture separator and regulator to maintain air quality across its 2319 CFM output range. By utilizing a 380-415 V three-phase electrical input at 60 Hz, the system ensures consistent power delivery for its 46,100–65,600 LPM airflow capacity. The direct-drive configuration eliminates the mechanical losses typically associated with belt-driven systems, maximizing the 355 kW power consumption for actual air generation. This model integrates an automatic condensate drain and a SULLSTAR II smart controller to automate the management of the 46.1–65.6 m³/min delivery range based on system demand. Thermal protection and overpressure sensors are calibrated to the 13 bar threshold to prevent mechanical fatigue during continuous industrial use.

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