Bitzer HSK7451-70 Semi-Hermetic Screw Compressor

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Technical Specifications

• Model: HSK7451-70

• Refrigerant: R404A (compatible with R134a, R507A, R407A/F, R448A, R449A, R1234yf, R1234ze, R515B)

• Cooling Capacity: 104.2 kW (at -10°C evaporating / 45°C condensing)

• Power Input: 57.8 kW

• COP (Efficiency): 1.80

• Displacement:

  • 50Hz: 192 m³/h

  • 60Hz: 232 m³/h

• Voltage: 380–415V / 3 Phase / 50Hz

• Max Operating Current: 124.0 A

• Starting Current (Rotor Locked): 290.0 A (D) / 485.0 A (DD)

• Max Power Input: 75.0 kW

• Weight: Approx. 305 kg

• Suction Connection: 76 mm – 3 1/8”

• Discharge Connection: 54 mm – 2 1/8”

• Sound Pressure Level @ 1m: 78.0 dB(A)

• Capacity Control: 100–75–50% (standard)

• Integrated Features:

  • Discharge gas temperature sensor

  • Start unloading

  • Oil flow control

  • Motor protection

  • Suction shut-off valve

• Optional Upgrades:

  • Discharge shut-off valve

  • ECO connection

  • Sound measurement kit

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Key Features

✅ High Capacity: Designed to handle large refrigeration loads with exceptional efficiency.

✅ Stepless Capacity Control: Adjusts smoothly from 100% to 50% capacity to match demand and improve energy efficiency.

✅ Robust German Engineering: Built to withstand continuous 24/7 operation in harsh industrial environments.

✅ Advanced Monitoring: Compatible with the Bitzer IQ Module for real-time performance tracking and diagnostics.

✅ Versatile Refrigerant Use: Supports a broad range of refrigerants, including eco-friendly, low-GWP options.

✅ Noise-Optimized Design: Maintains a sound pressure level of 78 dB(A) for quieter operation.

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Applications

• Large cold storage warehouses

• Industrial food processing and logistics facilities

• Process cooling for manufacturing

• Marine and offshore refrigeration systems

• Centralized refrigeration systems in commercial buildings

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Shipping & Availability

✅ Standard Voltage: 380–415V / 3 Phase / 50Hz

✅ Global Shipping: Export-grade packaging for secure delivery worldwide

✅ Lead Time: Standard 50Hz electrical version is usually in stock. For special electrical configurations (60Hz or other voltages), please allow an additional 2–3 weeks.