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3/4 HP R-404A/R-507 Danfoss SC18B Hermetic Reciprocating Compressor


The Danfoss SC18B is a heavy-duty 3/4 HP low-temperature freezer compressor equipped with an embedded thermal safety circuit flag to prevent overheating. It is highly valued for supermarket freezer aisles, commercial display islands, and ice cream storage vaults requiring consistent sub-zero temperatures. The internal engineering uses high-viscosity Polyolester (POE) oil to ensure all bearing surfaces stay lubricated during extended low-pressure cycles. Its rugged casing provides excellent sound dampening, allowing it to run quietly on commercial sales floors while keeping frozen goods securely preserved.

155,000 178,250

Ensure premium thermal management and long-term operating durability with the Danfoss SC18B. Engineered to deliver consistent and smooth compression, this 3/4 HP industrial low-temperature compressor relies on a precise internal mechanism backed by an embedded temperature safety circuit flag. This simplified layout minimizes routine mechanical wear, drastically limits acoustic noise output, and cuts down on structural system vibration compared to legacy low-temp units, all while maintaining an eco-conscious sub-zero heat extraction profile. Perfect for maintenance engineers, HVAC technicians, and facility management teams across Lagos, this robust workhorse is designed to tolerate tough field conditions, including deep sub-zero cabinet targets and continuous high-density vapor pressures. The unit comes factory-charged with premium Polyolester (POE) oil to ensure reliable mechanical lubrication in demanding freezing R404A/R507 environments. Standard copper suction and discharge connection stubs make certain that technicians can pull a clean, completely leak-proof braze line during drop-in field installation.

Technical Specifications

Specification Value
Brand Danfoss (Secop)
Model Family SC-Low Temp Freezer Reciprocating
Model Number SC18B (COMROT-DNFS12)
Horsepower (HP) 3/4 HP
Refrigerant Compatibility R404A / R507 Only
Voltage / Phase / Freq 220-240V / 1-Phase / 50Hz
Application Type Low Back Pressure (LBP) Supermarket Freezer Aisles
Suction Connection Size 3/8″ OD Heavy Duty Stub
Discharge Connection Size 5/16″ OD Heavy Duty Stub
Oil Type High-Purity Polyolester (POE) Oil

Shipping & Logistics Data

  • Net Weight: ~13.3 kg

  • Gross Shipping Weight (with protective packaging): ~14.0 kg

  • Product Dimensions: 31.0 cm × 21.0 cm × 25.0 cm (Box Dimensions)

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Final Sales To ensure the integrity of our inventory for all customers, Compressors and Refrigerants are FINAL SALES. These items are highly sensitive to handling and contamination; therefore, no returns, exchanges, or refunds will be entertained under any circumstances once they leave our facility.

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Discretionary Returns Any other returns are at the absolute discretion of ELINS.

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