About Changzhou Longwen Referigeration Co., Ltd. - Refrigeration, Cold Storage Supplier in China

Changzhou Longwen Referigeration Co., Ltd. operates from China and currently lists five active products in its catalogue. The firm concentrates on refrigeration and cold‑storage equipment, targeting commercial and industrial users. Its product portfolio is limited to cold‑room solutions designed for specific commodity groups. The catalogue emphasizes modular construction and customizable layouts. Buyers looking for temperature‑controlled environments for food or agricultural produce will find the listings relevant.

The five products enumerated are a Cold Room for Vegetables/Fruits/Meat, a Walk‑In Frozen Cold Room, a Tea Cold Room for Restaurants, a Frozen Food and Meat Cold Room, and a Vegetable Farm Combined Cold Room. All items fall under the broader refrigeration equipment classification and are intended for permanent installation in processing plants, restaurants, farms or distribution centers. Each unit is described as a self‑contained cold space with dedicated cooling plant. The listings suggest flexibility in capacity and temperature set‑points to match different product preservation needs.

Product Range and Specialties of Changzhou Longwen Referigeration Co., Ltd.

The catalogue offers five distinct cold‑room configurations: a multi‑purpose room for vegetables, fruits and meat; a walk‑in chamber for frozen goods; a specialized tea‑room for restaurant service; a dedicated frozen food and meat chamber; and a combined farm‑use room for vegetables. These units are presented as turnkey solutions that include insulated panels, refrigeration plant and control panels.

In the refrigeration industry, cold rooms are typically built with panels of 80 mm to 100 mm thickness, insulation R‑values of 3.5  -  4.5 m²·K/W, and temperature ranges from +2 °C for fresh produce to - 20 °C for frozen meat. Standard specifications include stainless‑steel door gaskets, electronic temperature controllers with ±0.5 °C accuracy, and optional humidity control for fresh‑produce rooms. Energy efficiency is often expressed by Coefficient of Performance (COP) values between 2.5 and 4.0. Buyers frequently request compliance with ISO 5149 for refrigerating systems and HACCP guidelines for food‑grade installations.

Trade and Export Information - Changzhou Longwen Referigeration Co., Ltd.

Cold‑room equipment from China is commonly shipped in 20 ft or 40 ft containers, with typical loading of 2 to 4 units per container depending on size. Exporters usually operate under FOB or CIF terms, and the goods are classified under the HS‑chapter for refrigerating or freezing equipment (generally HS 8419). Major import markets include Southeast Asia, the Middle East, and European countries with strong food‑processing or hospitality sectors. Chinese manufacturers often work with freight forwarders experienced in handling insulated panels and large refrigeration plants, ensuring proper bracing and temperature‑controlled storage during transit.

Buyers of refrigeration solutions generally require documentation such as a test report of temperature uniformity, an energy‑consumption certificate, and conformity declarations (CE or equivalent). While the supplier’s catalogue does not list specific certifications, purchasers typically request ISO 9001 quality‑management certification and HACCP or ISO 22000 food‑safety compliance for cold rooms intended for meat or produce storage. Import regulations in many regions also call for verification of refrigerant type (e.g., R‑290, R‑404A) and compliance with the Montreal Protocol.

Sourcing from Changzhou Longwen Referigeration Co., Ltd. - Buyer Guidance

When evaluating this supplier, buyers should request detailed technical drawings that show panel thickness, insulation material, and door specifications. A performance test report confirming temperature stability within ±0.5 °C across the chamber volume is a standard verification step. Requesting a copy of the supplier’s ISO 9001 or HACCP audit report, as well as a refrigerant safety data sheet, helps assess compliance with typical industry standards. Verify the lead time for factory production and the logistics plan for container loading to avoid delays in project schedules.

Before placing an order, confirm the warranty period for the refrigeration plant, the availability of after‑sales spare parts, and the option for on‑site commissioning. Buyers often ask for a sample of the insulation panel or a small‑scale mock‑up to evaluate build quality. Ensure that the supplier can provide a CE Declaration of Conformity or an equivalent national certification if the target market requires it.

What temperature ranges are available for the cold rooms listed by Changzhou Longwen?

The catalogue includes units designed for fresh‑produce storage (+2 °C to +10 °C) and frozen‑food storage ( - 18 °C to - 20 °C). Exact set‑points can be adjusted within those bands by the installed controller.

Are the cold rooms delivered as complete units or as component kits?

Each product is offered as a turnkey solution that includes insulated panels, the refrigeration plant and control panel. The supplier can also ship the components separately for on‑site assembly if required.

What insulation thickness is typical for these Chinese cold rooms?

Industry practice for similar modules uses panel thickness of 80 mm to 100 mm with high‑density polyurethane core, providing an R‑value around 4 m²·K/W.

Which certifications should a buyer request for food‑grade cold rooms?

Buyers normally request ISO 9001 for quality management, HACCP or ISO 22000 for food safety, and a CE Declaration of Conformity for the refrigeration plant. A refrigerant compliance certificate (e.g., for R‑290) is also advisable.

What is the typical lead time from order to shipment for these cold rooms?

Chinese manufacturers of similar size generally quote a production lead time of 45 to 60 days, depending on unit size and any custom specifications.

How are the cold rooms packaged for export?

Units are loaded into standard 20 ft or 40 ft containers, with panels and plant secured on wooden pallets and braced to prevent movement. Protective film is applied to panel surfaces to avoid scratches.

Can the supplier provide test reports for temperature uniformity?

Standard practice is to supply a temperature‑distribution test report showing variation of no more than ±0.5 °C across the chamber at the set point, which buyers should request before final acceptance.