Hoshizaki KM-520MAJ | KMEdgeX Undercounter Crescent Cuber Ice Machine | Order KM-522MAK Instead

Notice: This product has been discontinued and is no longer available for purchase. You may consider the Hoshizaki KM-522MAK as an alternative option. Shop here.

The KM-520MAJ by Hoshizaki is a high-capacity, air-cooled modular crescent cuber designed for commercial use. This slim-line ice machine delivers up to 556 lbs of crescent ice per day with advanced features like CycleSaver™ design and EverCheck™ alert system. Built with durable stainless steel construction and self-diagnostic programming, it is ideal for restaurants, hotels, and healthcare facilities requiring consistent, high-quality ice production. If you're looking for a similar unit, the KM-522MAK is available as an alternative, it runs on environmentally friendly R-290 refrigerant.

Key Specifications:

• Ice Production Capacity: 548 lbs per 24 hours at 70°F air/50°F water; 445 lbs at 90°F air/70°F water. 
• Dimensions: 22" W x 27⅜" D x 28" H compact slim-line profile.
• Electrical: 115V/60/1 operation, maximum fuse size 20A, draws 10.8A under normal load.
• Refrigerant: Uses R-290 (propane) instead, with a much smaller 5.3 oz charge — an environmentally friendly option.
• Water Usage: 17 gallons per 100 lbs of ice produced.

Comparison Table:

Features & Benefits:

• CycleSaver™ Design: Produces more ice with fewer harvest cycles, reducing wear and energy use.
• EverCheck™ Alert System: Real-time diagnostics and alerts for proactive maintenance.
• H-GUARD Plus Antimicrobial Agent: Protects against bacterial growth for cleaner, safer ice.
• Stainless Steel Double-Sided Evaporator: Ensures durability and efficient ice production.
• Factory-Installed Ultrasonic Bin Control: Provides precise ice level management to reduce waste.
• KM-522MAK Alternative: Shares the CycleSaver™ design, EverCheck™ alerts, double-sided evaporator, and ultrasonic bin control, and adds environmentally friendly R-290 refrigerant with a much smaller charge. Note: Hoshizaki's published spec sheet for the KM-522MAK does not list H-GUARD Plus antimicrobial protection, so confirm with your rep if this feature matters to you. It also produces slightly less ice and uses more water and energy per 100 lbs than the KM-520MAJ.

What's Included:

• Modular Crescent Cuber unit
• Removable air filters (air-cooled model)
• Installation and operation manual
• Warranty documentation

FAQ

Q: What type of ice does the KM-520MAJ produce?

A: It produces individual crescent-shaped cubes, valued for their attractive appearance and efficient cooling properties. The KM-522MAK alternative produces the same crescent-shaped ice.

Q: What is the warranty coverage?

A: Hoshizaki provides a 3-year parts and labor warranty on the entire machine, 5-year parts and labor on the evaporator, and 5-year parts on the compressor and air-cooled condenser coil. Valid in the United States, Canada, Puerto Rico, and U.S. Territories. The KM-522MAK carries the same warranty terms.

Q: Is this machine compatible with different ice storage bins?

A: Yes, it is compatible with Hoshizaki bins and dispensers including B-300SF, B-500SF, B-700SF, B-900SF, and larger. A top kit may be required for certain bin models. The KM-522MAK is compatible with the same bin lineup.

Q: What are the installation requirements?

A: The KM-520MAJ must be hard-wired at site (no power cord included). Clearance of at least 6" at rear, sides, and top is required for proper air circulation. The KM-522MAK shares these same installation requirements, and additionally requires a GFCI breaker (not a receptacle) if GFCI protection is needed.

Q: How energy efficient is this model?

A: It consumes only 4.68 kWh per 100 lbs of ice produced, making it cost-effective and environmentally friendly. The KM-522MAK alternative uses slightly more energy at 5.15 kWh per 100 lbs.

Q: How does the KM-522MAK alternative compare to the KM-520MAJ?

A: The KM-522MAK's main advantage is its environmentally friendly R-290 refrigerant with a much smaller charge. However, it produces slightly less ice (548 vs. 556 lbs at 70°F/50°F, and 445 vs. 480 lbs at 90°F/70°F), uses more water per 100 lbs (17.0 vs. 14.7 gallons), and uses more energy per 100 lbs (5.15 vs. 4.68 kWh). It's best considered a refrigerant-driven alternative rather than a performance upgrade — review these trade-offs against your priorities before switching.

Detailed Features & Benefits

CycleSaver™ Design and Energy Efficiency: Reduces harvest cycles needed to produce ice, lowering wear and energy use. At just 4.68 kWh per 100 lbs of ice, it is both cost-effective and eco-friendly. The KM-522MAK alternative retains the CycleSaver™ design but uses somewhat more energy per 100 lbs, at 5.15 kWh.

EverCheck™ Alert System: Provides real-time diagnostics and alerts, allowing operators to address issues before they escalate, minimizing downtime and maintenance costs. The KM-522MAK shares this same alert system.

Durability and Hygiene: Stainless steel double-sided evaporator ensures long-lasting performance, while H-GUARD Plus antimicrobial protection enhances ice safety. The KM-522MAK shares the same double-sided evaporator; confirm with Hoshizaki whether H-GUARD Plus protection carries over, as it isn't listed on the current KM-522MAK spec sheet.

Bin Control: Factory-installed ultrasonic bin control manages ice levels precisely, reducing waste and optimizing storage capacity. The KM-522MAK shares this same bin control feature.

NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.

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