448L–1980L Commercial Upright Three-Glass Door Display Freezer

The Realmann SD Series Commercial Upright Glass Door Display Freezer is engineered for frozen food merchandising in supermarkets, convenience stores, grocery chains, and ice cream retail outlets. Available in six models with usable capacities ranging from 448L to 1980L, the series combines low-temperature refrigeration with clear product presentation and practical retail operation.

Designed for frozen food storage at −15°C to −20°C, the SD Series uses a fan-forced refrigeration system with R290 refrigerant and Cubigel compressors. Digital CAREL temperature controls allow operators to manage cabinet settings, while an enlarged copper-aluminum finned evaporator provides a manufacturer-specified 30% additional design allowance.

A key feature of this commercial display freezer is its triple-layer electrically heated Low-E tempered glass door. The insulated glazing helps reduce heat transfer, while integrated electric heating helps limit condensation and fogging on visible glass surfaces. This design enables customers to browse frozen merchandise without opening the doors.

Inside the freezer, adjustable shelves and stainless steel shelf supports provide flexible space for packaged frozen foods, ice cream, frozen snacks, and other products compatible with the specified temperature range. Vertical LED lighting installed along both sides of the interior improves visibility across the display area.

For daily retail use, self-closing hinged glass doors help reduce accidental door openings. Extended door handles offer convenient access, while a self-evaporating condensate system reduces the need for routine manual water disposal.

Enlarged swivel casters facilitate positioning and maintenance access. Optional locks, keys, and bottom wheel configurations can be discussed according to the installation requirements.

As an OEM/ODM commercial freezer manufacturer, Realmann supplies a range of upright glass door freezers for commercial refrigeration distributors, supermarket operators, and frozen food merchandising projects.

Key Features & Benefits

1. Triple-Layer Electrically Heated Low-E Glass Doors

The SD Series features triple-layer insulated tempered glass doors with Low-E coating and integrated electric heating.

The three-layer construction helps reduce heat transfer between the freezer interior and the surrounding environment. The electric glass heating system helps control external condensation and fogging, allowing shoppers to view frozen merchandise more clearly.

This glazing configuration is especially relevant for commercial freezer applications because of the significant temperature difference between the frozen interior and ambient retail environment.

2. Low-Temperature Freezing from −15°C to −20°C

Unlike standard commercial beverage refrigerators, the SD Series is specifically designed for frozen product display.

Its specified cabinet temperature range of −15°C to −20°C supports frozen merchandise when the cabinet is operated under appropriate ambient and loading conditions.

Retailers should select the correct operating temperature according to the storage requirements of the products being displayed. Products requiring a maximum temperature of −18°C should not be stored at warmer settings.

3. Six Capacity Options for Different Retail Layouts

The series provides six usable capacity options:

The 685 mm models are suitable for smaller retail spaces, while the 1370 mm and 2050 mm cabinets provide expanded frozen food display capacity for larger commercial installations.

4. R290 Refrigeration with Cubigel Compressors

All SD Series models use R290 refrigerant and Cubigel compressors.

The SD-580F is specified with two compressors, while the SD-690F, SD-1180F, and SD-1390F are listed with one compressor each. The larger SD-1780F and SD-2090F feature two compressors.

R290 has a low global warming potential and is used in appropriately designed commercial refrigeration systems. As a flammable refrigerant, it requires suitable equipment design, installation, and servicing procedures.

5. Enlarged Copper-Aluminum Finned Evaporator

An enlarged copper-aluminum finned evaporator is incorporated into the refrigeration system.

The manufacturer specifies a 30% evaporator design allowance, providing additional heat-exchange capacity within the system configuration.

This allowance should not be interpreted as a verified 30% increase in refrigeration performance or efficiency.

6. Digital CAREL Temperature Management

The freezer uses a digital CAREL temperature control system, enabling operators to adjust operating settings and monitor temperature information according to the configured controller functions.

Electronic temperature management helps support consistent operation across different frozen food merchandising environments.

7. Self-Closing Hinged Freezer Doors

The self-closing hinged door mechanism helps return the freezer doors to their closed position following customer access.

This reduces the likelihood of a door being left open unintentionally and helps limit unnecessary warm-air infiltration during regular retail operation.

Extended door handles provide convenient access for customers and store staff.

8. Adjustable Shelving with Stainless Steel Supports

The interior includes adjustable shelves supported by stainless steel shelf rails.

This arrangement allows retailers to adapt the display layout for different package dimensions, including frozen food cartons, ice cream containers, and packaged frozen snacks.

Stainless steel shelf supports provide corrosion resistance and facilitate routine cleaning.

9. Vertical LED Lighting for Frozen Product Visibility

Vertical LED lighting along both sides of the interior helps illuminate merchandise at different shelf heights.

The lighting arrangement improves the presentation of frozen products inside the glass door cabinet, particularly in larger multi-section freezer installations.

10. Self-Evaporating Condensate System and Easy Mobility

The integrated self-evaporating condensate system is intended to reduce routine manual drainage requirements under normal operating conditions.

Enlarged swivel casters simplify cabinet positioning, while optional locking accessories and wheel configurations support different retail installation requirements.

Technical Specifications

SD-580F / SD-690F / SD-1180F

SD-1390F / SD-1780F / SD-2090F

Additional Product Features

All model dimensions, capacities, loading quantities, refrigerants, and compressor counts are based on the supplied specification table. In particular, the SD-580F is listed with two Cubigel compressors. Electrical ratings, energy consumption, door count, and detailed shelf quantities have not been provided and should be confirmed before publication.

Commercial Applications

1. Supermarket Frozen Food Aisles

The SD-1180F, SD-1390F, SD-1780F, and SD-2090F models provide refrigerated merchandising space for supermarkets with dedicated frozen food sections.

Their upright configuration and adjustable shelving support the presentation of packaged frozen vegetables, prepared meals, and frozen snacks.

The heated Low-E glass doors help maintain product visibility while reducing condensation-related viewing obstruction.

2. Ice Cream and Frozen Dessert Merchandising

The SD Series can be considered for packaged ice cream, frozen desserts, and related products when their required storage temperatures are compatible with the cabinet’s operating range.

The glass door design enables customers to browse available flavors and products, while vertical LED lighting improves product identification.

3. Convenience Stores and Neighborhood Grocery Shops

The narrower SD-580F and SD-690F models offer frozen merchandising capacity without requiring the full width of a larger supermarket freezer.

These models can be installed as part of a convenience store’s frozen food section, subject to appropriate ventilation and electrical installation requirements.

4. Frozen Food Retail Chains

Retail chains operating multiple store formats can select from the six available capacities.

Using models from the same product series may help create a consistent visual appearance across different retail locations while allowing freezer capacity to match each store’s requirements.

5. Frozen Food Brand Promotional Displays

The illuminated light box and glass door construction support frozen product presentation for retail merchandising programs.

Distributors and frozen food brands can discuss display configuration and other project requirements with Realmann.

OEM/ODM Customization Options

Realmann provides commercial refrigeration manufacturing support for distributors, equipment importers, and frozen food retailers.

Project-specific customization, branding, minimum order quantities, and delivery requirements should be confirmed with Realmann.

Frequently Asked Questions (FAQ)

Q1: What is the temperature range of the Realmann SD Series upright display freezers?

The SD Series operates within a specified temperature range of −15°C to −20°C.

The appropriate setpoint depends on the products being stored and applicable food safety requirements. For products requiring storage at or below −18°C, the freezer should be operated and verified accordingly.

Q2: What is the difference between the SC Series refrigerators and SD Series freezers?

The SC Series discussed previously is designed for chilled merchandise, with a specified operating range of 0°C to +7°C.

The SD Series is designed for frozen merchandise, operating from −15°C to −20°C.

The SD Series also features triple-layer electrically heated Low-E tempered glass doors, compared with the double-layer heated glazing specified for the corresponding SC series.

Q3: Why does a commercial display freezer need triple-layer heated glass?

A freezer operates at substantially lower temperatures than the surrounding retail environment.

Triple-layer insulated glass helps limit heat transfer, while the integrated heating system helps reduce condensation and fogging that could obstruct the view of displayed products.

Q4: Which SD Series model has the largest capacity?

The SD-2090F offers the largest usable capacity at 1980L.

It measures 2050 × 852 × 2107 mm and is suitable for larger frozen merchandising requirements where installation conditions allow.

Q5: Which models are suitable for smaller retail spaces?

The SD-580F and SD-690F are the narrowest models, both measuring 685 mm in width.

The SD-580F provides 448L, while the deeper SD-690F offers 546L of usable storage.

Q6: What refrigerant is used in the SD Series?

All six models use R290 refrigerant.

R290 has a low global warming potential but is flammable, so installation, servicing, and equipment selection must comply with applicable refrigeration safety requirements.

Q7: Are the freezer doors self-closing?

Yes. The SD Series includes self-closing hinged doors.

This design helps reduce accidental prolonged door openings during customer access, although correct adjustment and maintenance are necessary for reliable operation.

Q8: Can the shelves be adjusted?

Yes. Adjustable shelves allow retailers to modify their frozen product layouts for different packaging dimensions.

The stainless steel shelf supports provide corrosion resistance and facilitate maintenance.

Q9: Does the freezer require manual condensate drainage?

The freezer includes a self-evaporating condensate system designed to reduce routine manual water disposal.

Performance depends on operating conditions, and periodic inspection and maintenance remain necessary.

Q10: Is the SD Series suitable for packaged ice cream?

The SD Series may be suitable for certain packaged frozen desserts if the manufacturer’s required storage temperature falls within the freezer’s operating range.

Some ice cream products require colder conditions than −20°C for optimal long-term storage or quality. Buyers should verify product-specific requirements before selecting a model.

Q11: Can I request a lock and key?

Yes. A lock and key are available as optional accessories.

Customers should specify locking requirements when requesting a quotation.

Q12: Does Realmann supply upright display freezers for wholesale projects?

Yes. Realmann supports commercial freezer wholesale and OEM/ODM inquiries.

Distributors and equipment buyers can discuss the appropriate model, capacity, optional accessories, order quantities, and shipping requirements.