Refcomp SP4L2200 SP4L220E R404A Semi-Hermetic Compressor for Cold Storage

• Solenoid-Driven Capacity Regulation (100% / 50%)
  Engineered with a solenoid-actuated energy regulation system, this semi-hermetic compressor provides 100% and 50% capacity steps to match dynamic cooling demands. By modulating displacement during part-load operating periods, the unit stabilizes suction pressure, avoids frequent motor cycling, and reduces power consumption in commercial freezing applications.
• Advanced Floating Sleeve Bearing System
  Incorporating high-precision floating sleeve bearings paired with durable thrust washers, this semi-hermetic compressor eliminates localized shaft friction and minimizes radial wear. The optimized lubrication geometry ensures low-noise operation and extends mechanical design life up to 50000-80000 running hours.
• Heavy-Duty 4-Cylinder Reciprocating Assembly
  Built around a high-rigidity casing rated for working pressures up to 28 bar, the compressor features a dynamically balanced crankshaft with integrated counterweights and bronze wrist pin bushings. This robust mechanical structure absorbs operational shock, dampens gas pressure pulsations, and delivers smooth running characteristics during continuous low-temperature operation.
• Integrated Motor Protection & Pressure Relief
  To safeguard internal electrical and mechanical components, the semi-hermetic compressor is equipped with an INT6902 electronic motor protection module that guards against phase loss and thermal overload. An internal differential safety valve automatically equalizes high-to-low pressure during sudden system anomalies, while an outer-accessible suction filter screen traps system contaminants.

• Large-Scale Walk-In Freezers & Cold Stores
  Ideal for supermarket cold rooms, commercial freezing facilities, and central cold storage warehouses.
• Blast Freezing & Fast Chilling Tunnels
  Suitable for rapid chilling and flash-freezing production lines requiring high volumetric displacement.
• Cold Chain Logistics Distribution Hubs
  Designed for refrigerated logistics centers requiring continuous, low-vibration operation.
• Industrial Process Temperature Maintenance
  Well-suited for pharmaceutical storage, chemical processing, and industrial liquid cooling systems.

Coolstart is a modern, large-scale refrigeration enterprise with over 20 years of industry experience. We specialize in supplying semi-hermetic compressors, scroll compressors, screw compressors, reciprocating compressors, rotary compressors, cold storage equipment, quick-freezing systems, and ice-making machinery. Supporting full-category OEM and ODM customization, Coolstart delivers reliable refrigeration products to clients across the United States, Russia, the United Kingdom, the United Arab Emirates, Saudi Arabia, and other global markets through technical innovation and dedicated service.

Our technical engineering team provides custom model selection, system matching, and factory-direct pricing for commercial and industrial refrigeration projects. Send your project parameters to receive a formal quotation within 8 hours.

Please include the following details in your inquiry:

• Target Model & Quantity
• Working Refrigerant
• Power Supply Specifications
• Operating Conditions
• Specific System or Project Requirements