The BSR 311S is a powerful and efficient screw compressor, designed for heavy-duty industrial and commercial refrigeration applications. With increased displacement and durable construction, it is ideal for large cold rooms, processing plants, and continuous operation environments.
Model: BSR 311S
Displacement:
50Hz: 206 m³/h
60Hz: 247 m³/h
Speed: 2950 / 3550 rpm (50/60 Hz)
Capacity Control: Step control (25 / 50 / 75 / 100%) or linear control (25–100%)
Refrigerants Supported: R22, R134a, R407C, R404A, R507
Motor Type: 3-phase, 2-pole induction motor
Voltage Range:
50 Hz: 380–415V
60 Hz: 220 / 380 / 400 / 440 / 460 / 480V
Protection: Phase loss, phase sequence, and motor PTC/PT100 thermistor
Startup: Y-Δ (star-delta) or direct-on-line
Suction Port Size: 3-1/8 inch (79.4 mm)
Discharge Port Size: 2-1/8 inch (53.9 mm)
Hydraulic Test Pressure: 42 kg/cm²G
Oil Heater: 150 W
Oil Charge: 13 Liters
Net Weight: 542 kg
High-capacity compressor for demanding applications
Ideal for food storage, logistics centers, and process refrigeration
Built with durable components for long-term reliability
Multi-refrigerant compatibility with smart protection features
Available for international shipping from China
Estimated lead time: 7–10 business days
Export-safe wooden packaging included
Our team is ready to assist with sizing, specs, and availability.
