Semi-hermetic Single-stage Screw Compressor

SRS semi-hermetic single-stage Screw Compressors include 5 series totaling 14 models with a displacement of 84 – 500 m3/h @ 2960 rpm. A large application window caters for a wide range of applications. Whereas all major refrigerants can be used, our compressors are optimized for the natural and environment-friendly refrigerants such as Ammonia R717.

The semi-hermetic construction results in a permanent technical leak-proof solution without a shaft seal.

The use of frequency inverters, a permanent magnet synchronous motor and adjustable Vi ensure high efficient operation at varying load and temperature profiles, thus guaranteeing high SEER values.

Applications where this product is suitable











Features of SRM open-type single-stage screw compressor:

  • “I”type patented profile, best lobe ratio of 5+7, high efficiency.
  • The aluminium windings of the PM motor are compatible with ammonia and need no extra protection which can get damaged or deteriorate over time.
  • Rotor is made of high- quality forged steel with micron- machining accuracy, high strength, high wear resistance, and long durability.
  • The housing is made of high- strength ductile iron, design pressure: 2.8 Mpa.
  • High- precision and wear- resistant roller bearings designed for a life span of 80.000 operating hours.
  • The internal compression ratio Vi can be adjusted to the existing operating conditions either manually or automatically for highest efficiency, even under varying conditions.
  • Integrated oil channels for secure lubrication of all critical spots within the compressor.
  • Suction and discharge ports can be swapped from left to right and turned 360° for easy mounting and connection in multiple compressor systems.

Cold Storage by SRS

The Australian SWIRE Cold Chain Logistics commissioned China their sixth logistics centre with 22,000 sqm storage area as “one-stop-logistcs-solution”.
With the second step another 34,000 pallet spaces will follow soon with variable multi-temperature-configuration.

1 x SRMTec C2NA16L-HAHV semi-hermetic duo-compressor-pack with Qo: 695 kW capacity cools via propylene glycol as coolant the storage temperature zone 0 bis 12 ° C.

Technical data:
Cooling capacity Qo: 695 kW

Commissioning: 04 /2017