# ColdRooms Factory

> ColdRooms Factory (legal entity: Shanghai Mars Industrial Co., Ltd., Shanghai, China) is a factory-direct B2B manufacturer and exporter of walk-in cold rooms, blast freezers, container cold rooms and the refrigeration equipment that runs them: condensing units, air cooler evaporators, air-cooled condensers, axial fans and ice machines. Operating range −40 °C to +15 °C. Contact: inquiry@cold-room-factory.com, phone/WhatsApp +86 176 2154 1688.

Key facts:
- Products: 70 catalogue models in 6 lines; custom and OEM builds available.
- Panels: PU/PIR camlock sandwich panels 75–200 mm.
- Power: 220 V/50 Hz to 440 V/60 Hz on request.
- Warranty: 1 year with video technical support; video outgoing inspection provided.
- Quotation reply: typically within 24 hours on working days.

## Product categories
- [Cold Rooms](https://www.cold-room-factory.com/products/cold-rooms/): Walk-in cold rooms, freezer rooms, blast freezers and container cold stores built from PU/PIR camlock panels.
- [Condensing Units](https://www.cold-room-factory.com/products/condensing-units/): Box-type, open-type and monoblock condensing units with hermetic, scroll and semi-hermetic compressors.
- [Evaporators & Air Coolers](https://www.cold-room-factory.com/products/evaporators/): DD, DJ and DL series unit coolers with copper tube, aluminium fin coils and electric defrost.
- [Air-Cooled Condensers](https://www.cold-room-factory.com/products/condensers/): FNH and FNV V-type air-cooled condensers and copper coil heat exchangers for refrigeration systems.
- [Axial Fans](https://www.cold-room-factory.com/products/axial-fans/): YWF external-rotor axial fans and condenser fan motors from 200 mm to 900 mm.
- [Ice Machines](https://www.cold-room-factory.com/products/ice-machines/): Cube, flake and block ice machines from 55 kg to 30 t per day for food, fisheries and hospitality.

## Key pages
- [Home](https://www.cold-room-factory.com/): overview and cold room estimator
- [All products](https://www.cold-room-factory.com/products/): filterable catalogue
- [About](https://www.cold-room-factory.com/about/): company, quality and how we work
- [Project blueprints](https://www.cold-room-factory.com/projects/): engineered reference solutions
- [Insights](https://www.cold-room-factory.com/blog/): engineering guides
- [Contact & quotation](https://www.cold-room-factory.com/contact/): inquiry form, email, WhatsApp

## Engineering guides
- [Flake vs Cube vs Block Ice Machine: Which to Choose?](https://www.cold-room-factory.com/blog/flake-vs-cube-vs-block-ice-machine/): Compare flake, cube and block ice machines for fisheries, markets and food processing: ice form, cooling speed, storage, transport and how to size capacity.
- [Cold Room Installation Checklist: Site to Commissioning](https://www.cold-room-factory.com/blog/cold-room-installation-checklist/): A practical cold room installation checklist: site and floor preparation, panel assembly, piping, leak testing, evacuation, charging and commissioning.
- [Cold Room Refrigerant Choice in 2026: R404A, R448A, R290](https://www.cold-room-factory.com/blog/cold-room-refrigerant-guide-2026/): A neutral 2026 guide to cold room refrigerants: R404A phase-down, R448A and R449A, R134a, R290 and CO2, with GWP values, safety classes and selection factors.
- [Cold Room Evaporator Selection and Defrost Methods](https://www.cold-room-factory.com/blog/cold-room-evaporator-selection-and-defrost/): How to select a cold room evaporator: DL, DD and DJ types, fin spacing, temperature difference, air throw and placement, plus electric and hot gas defrost.
- [Container Cold Room vs Prefabricated Panel Cold Room](https://www.cold-room-factory.com/blog/container-cold-room-vs-prefabricated-panel-cold-room/): Should you buy a 20ft or 40ft container cold room or a prefabricated panel cold room? Compare size, mobility, installation, cost and best-fit applications.
- [Blast Freezer vs Cold Storage Room: Key Differences](https://www.cold-room-factory.com/blog/blast-freezer-vs-cold-storage-room/): Blast freezer or cold storage room? Compare air temperature, air velocity, capacity, panels and equipment, with a worked example for freezing 1 tonne of fish.
- [Hermetic vs Scroll vs Semi-Hermetic Condensing Units](https://www.cold-room-factory.com/blog/hermetic-vs-scroll-vs-semi-hermetic-condensing-unit/): Compare hermetic, scroll and semi-hermetic piston condensing units for cold rooms: capacity range, low-temperature duty, efficiency, service and selection.
- [Cold Room Panel Thickness Guide: 75 to 200 mm PU Panels](https://www.cold-room-factory.com/blog/cold-room-panel-thickness-guide/): Which PU panel thickness does your cold room need? Compare 75, 100, 120, 150 and 200 mm panels by temperature, U-value, energy cost and condensation risk.
- [Cold Room Refrigeration Load Calculation: Worked Example](https://www.cold-room-factory.com/blog/how-to-calculate-cold-room-refrigeration-load/): Learn how to size a cold room refrigeration load step by step: transmission, product, infiltration and internal heat, with a +2 °C chiller worked example.

## Project blueprints
- [Seafood Blast Freezer and Frozen Store for a Fishing Port](https://www.cold-room-factory.com/projects/seafood-blast-freezer-frozen-store-fishing-port/): Reference design for a fishing port: a −35 °C blast freezer for daily catch plus a −20 °C frozen store, with semi-hermetic units and DJ-type evaporators.
- [Multi-Chamber Fruit and Vegetable Chiller Warehouse](https://www.cold-room-factory.com/projects/fruit-vegetable-multi-chamber-chiller-warehouse/): Reference design for a fresh produce warehouse with four independent chiller chambers at 0 to +10 °C, low-TD evaporators and V-type condensers for hot sites.
- [40ft Container Mobile Cold Room for Remote Sites](https://www.cold-room-factory.com/projects/40ft-container-mobile-cold-room-remote-sites/): Reference design for a 40ft container cold room for mining, construction and relief sites: plug-in chiller or freezer, generator-ready and easy to relocate.
- [Walk-In Chiller and Freezer Combo for Restaurants and Hotels](https://www.cold-room-factory.com/projects/restaurant-hotel-walk-in-chiller-freezer-combo/): Reference design for a restaurant or hotel kitchen: a two-compartment walk-in with +2 °C chiller and −18 °C freezer, quiet box-type units and hygienic finish.
- [Pharmaceutical and Vaccine Cold Room at +2 to +8 °C](https://www.cold-room-factory.com/projects/pharmaceutical-vaccine-2-8c-cold-room/): Reference design for a +2 to +8 °C pharmaceutical and vaccine cold room with duty/standby refrigeration, alarms and continuous temperature logging support.
- [Flake Ice Plant and Chilled Store for a Fish Market](https://www.cold-room-factory.com/projects/flake-ice-plant-chilled-store-fish-market/): Reference design for a fish market: a 10 t/day flake ice machine over a −8 °C ice store, plus a 0 to +2 °C chilled room for iced fish awaiting sale.

## Optional
- [Full product list for LLMs](https://www.cold-room-factory.com/llms-full.txt)
- [Sitemap](https://www.cold-room-factory.com/sitemap.xml)