Hoshizaki KM-81BAK Self-Contained Crescent Cube Ice Machine with 38 lb Bin, 98 lb/24 hr, Air-Cooled, R290
Hoshizaki KM-81BAK Self-Contained Crescent Cuber with 38 lb Bin, 98 lb/24 hr
The Hoshizaki KM-81BAK is a self-contained, air-cooled crescent cuber that makes up to 98 lb of ice per 24 hours and holds 38 lb in its built-in storage bin, all in a cabinet 17-3/4" wide. It replaces the KM-81BAJ with environmentally friendly R290 hydrocarbon refrigerant, higher output and a lower 2.4 amp draw, and it plugs into a standard 115V outlet through a 6.5 ft cord with a NEMA 5-15P plug. Front-in, front-out airflow with a removable air filter allows built-in installation, a slide-in door keeps the bin front compact, and the design is ADA compliant.
Key Features of the KM-81BAK
Every figure below comes from the Hoshizaki KM-81BAK specification sheet. Where a number depends on air and water temperature, the rating condition is stated with it.
Up to 98 lb of Ice Per 24 Hours
Rated at 98 lb per 24 hours at 70°/50°F air and water, and 76 lb per 24 hours at 90°/70°F. At 90°/70°F the machine uses 22.0 gallons of potable water and 5.6 kWh of electricity per 100 lb of ice.
38 lb Built-In Storage Bin
The bin holds 1.3 cu. ft., or 38 lb of ice, rated to AHRI Standard 820 on 100% of total volume at an average ice density of 30 lb per cu. ft. A slide-in door covers the bin opening at the front of the cabinet.
Individual KM Edge Crescent Cube
A stainless steel evaporator forms individual crescent cubes of roughly 1-1/8" x 1-1/2" x 1/2". The crescent shape lets ice settle tightly around a drink and displaces more liquid than a square cube of the same weight.
R290 Refrigerant on a Standard 115V Outlet
Charged with 3.0 oz of R290 hydrocarbon refrigerant. The unit draws 2.4 amps on 115V/60/1 with a 15 A minimum circuit and maximum fuse size, and ships with a 6.5 ft (2000 mm) power cord and NEMA 5-15P plug, so no hardwiring is needed.
Front-In, Front-Out Airflow
The condenser draws and exhausts air through the front behind a removable air filter, which is what makes built-in installation possible. Hoshizaki calls for at least 12" of clearance at the front, 0.6" at the top and room at the rear for the water and drain connections.
EverCheck Alert, CycleSaver Design, Front Power Switch
The EverCheck™ alert system flags service conditions at the machine, the CycleSaver™ design is standard, and the power switch can be reached without removing any panels.
Installation note: The KM-81BAK measures 17-3/4" W x 24" D x 38-5/8" H including its 6" legs. It needs a 1/2" FPT water inlet fed by at least 1/4" nominal ID copper tubing and a 3/4" FPT drain into at least 3/4" nominal ID hard pipe; where no gravity drain is available, Hoshizaki offers the optional HS-5061 drain pump assembly. Supply water pressure must stay between 10 and 113 PSIG, and the room between 45°F and 100°F.
Ideal Applications
A plug-in cuber with its own bin suits places that need clear, slow-melting ice on hand all day but have no room or demand for a modular head and separate storage bin.
KM-81BAK Specifications
| Model | Hoshizaki KM-81BAK |
|---|---|
| Type | Self-contained crescent cuber with built-in storage bin |
| Ice Style | Individual KM Edge crescent cube, approx. 1-1/8" x 1-1/2" x 1/2" |
| Ice Production at 70°/50°F | 98 lb per 24 hours |
| Ice Production at 90°/70°F | 76 lb per 24 hours |
| Built-In Storage | 38 lb (1.3 cu. ft.), rated to AHRI Standard 820 |
| Condenser | Air-cooled, front-in, front-out airflow with removable air filter |
| Exterior Dimensions (W x D x H) | 17-3/4" x 24" x 38-5/8" (including 6" legs) |
| Exterior | Stainless steel |
| Evaporator | Stainless steel |
| Bin Door | Slide-in |
| Refrigerant | R290, 3.0 oz charge |
| Heat Rejection | 1,800 BTU/hr |
| Potable Water Usage | 22.0 gal per 100 lb at 90°/70°F |
| Energy Use | 5.6 kWh per 100 lb at 90°/70°F |
| Electrical | 115V/60/1 |
| Amperage | 2.4 A |
| Min. Circuit / Max. Fuse | 15 A |
| Power Cord | 6.5 ft (2000 mm) with NEMA 5-15P plug |
| Water Inlet | 1/2" FPT; minimum 1/4" nominal ID copper tubing or equivalent |
| Drain Outlet | 3/4" FPT; minimum 3/4" nominal ID hard pipe or equivalent |
| Ambient Temperature Range | 45°F to 100°F |
| Water Temperature Range | 45°F to 90°F |
| Water Pressure Range | 10 to 113 PSIG |
| Voltage Range | 108 to 122V |
| Clearance | 12" front, 0.6" top, room at rear for water and drain connections |
| Net / Shipping Weight | 92 lb / 125 lb |
| Shipping Carton (L x W x H) | 27" x 21" x 39" (12.80 cu. ft.) |
| Certifications | NSF/ANSI 372, ADA compliant, ENERGY STAR® qualified |
Optional Accessories
Hoshizaki lists the following option for the KM-81BAK on its specification sheet, along with a water filter recommendation.
| HS-5061 Drain Pump Assembly | Pumps drain water where a gravity drain is not available; covered by its own 1-year parts and labor warranty |
|---|---|
| Water Filter | Recommended; see the Hoshizaki water filter specification sheet for the configuration that matches this model |
Frequently Asked Questions
Does the KM-81BAK replace the KM-81BAJ?
Yes. The KM-81BAK is the current version of the KM-81BAJ in the same 17-3/4" wide cabinet with the same 38 lb bin. It switches from 7.1 oz of R-134a to 3.0 oz of R290 refrigerant, raises output from 78 to 98 lb per 24 hours at 70°/50°F (52 to 76 lb at 90°/70°F), and lowers the draw from 3.5 to 2.4 amps.
How much ice does the Hoshizaki KM-81BAK make per day?
Up to 98 lb per 24 hours at 70°/50°F air and water temperature, and 76 lb per 24 hours at 90°/70°F. Warmer rooms and warmer supply water bring output closer to the lower figure.
How much ice does the KM-81BAK bin hold?
The built-in bin holds 1.3 cu. ft., which Hoshizaki rates at 38 lb based on 100% of total volume at 30 lb per cu. ft. average ice density, in accordance with AHRI Standard 820.
What power does the KM-81BAK need?
A 115V/60/1 outlet on a circuit with a 15 A minimum circuit and maximum fuse size. The unit draws 2.4 amps and ships with a 6.5 ft power cord and NEMA 5-15P plug. If GFCI protection is required, Hoshizaki specifies a GFCI breaker rather than a GFCI receptacle.
Can the KM-81BAK be built into cabinetry?
Yes. Front-in, front-out airflow makes built-in installation possible. Allow at least 12" of clearance at the front, 0.6" at the top and enough room at the rear for the water supply and drain connections.
Does the KM-81BAK need a floor drain?
It drains by gravity from a 3/4" FPT outlet into at least 3/4" nominal ID hard pipe. Where a gravity drain is not available, Hoshizaki offers the optional HS-5061 drain pump assembly.
| Brand | Hoshizaki |
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| SKU | KM-81BAK |
| Brand | Hoshizaki |
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