Sumitomo F-50 is a mid-sized, water-cooled helium compressor used primarily in cryocooler systems for high-precision applications like Magnetic Resonance Imaging (MRI) and cryopumps. It is a replacement for older models like the CSW-71D, featuring an improved oil separator that extends the maintenance cycle to 30,000 hours. 1. Key Technical Specifications The F-50 is available in low-voltage ( ) and high-voltage ( ) variants to accommodate different regional power grids. SHI Cryogenics Group Specification Details Power Supply : 3-Phase 200V (50/60 Hz) : 3-Phase 380/400/415V (50 Hz) or 460/480V (60 Hz) Consumption 6.5–7.2 kW (50 Hz) to 7.5–8.3 kW (60 Hz) Cooling Water Flow rate of 4–10 L/min at 4–28°C (39–82°F). Never use demineralized water Dimensions 591 mm (H) x 450 mm (W) x 585 mm (D) Approximately 120 kg (264 lbs) Gas Pressure 2.30–2.35 MPaG (operating pressure varies by heat load) 2. System Components & Operation

Key Features of Sumitomo F50 Compressor

B. Technical specifications

• Rated pressure (e.g., 7, 10, 13 bar)
• Air flow (m³/min or cfm)
• Oil capacity, oil type (usually ISO VG 46)
• Motor power (50 hp / 37 kW)
• Electrical requirements

• Oil-free scroll compressor
• ~5 HP motor
• ~15–20 CFM at 100 PSI
• Often sold as a "quiet" series (around 60 dB)