Vocke open refrigeration compressors, Jinhua Jindong

Zhejiang Vocke Refrigeration builds open refrigeration compressors in Jindong, Jinhua, and sells them with cold-store engineering. The official page calls the company a refrigeration-compressor supplier and a cold-store design house in one sentence. Food processing, food storage, medicine storage and refrigerated transport are the named applications. That is a refrigerant and temperature file. It is not a compressed-air FAD file. A buyer who pastes “Jinhua compressor, 8 bar” will waste a week.

Three series are catalogued: V11, V21 and VKXS4A. The same homepage also tiles V12, V13, V14, V22 and V31. Those extra frames prove the works publishes a wider open-compressor map. They are not extra SKUs on this desk. If the duty needs V13, say V13 in prose and attach evaporating / condensing temperatures and the refrigerant. Do not expect a catalogue row that is not listed. Factory compressed air is the wrong desk even if the canopy looks familiar.

The product-advantage block is mechanical, not electrical. Three oil strainers increase filter area so contaminated oil still feeds the machine and, the page says, cut wear. A 2023 cylinder-honing system is claimed to reach 0.4 μm wall roughness and 5 μm cylindricity, with a cross-hatch that holds the oil film, improves sealing and lowers bore wear. A stacked valve plate with annular high- and low-pressure reeds is said to raise suction superheat, cut discharge temperature and flash incoming liquid to reduce slugging. An electronic motor-protection module watches PTC sensors in more than one zone and drops the contactor; after cool-down and unlock it resumes monitoring. Those are official-page construction notes. They are not invented COP figures and they are not a kW table.

The profile dates the works to 1997, mentions 26 years of development, 36-plus patents and 65-plus people. Design, manufacture, sales and engineering installation sit in the same sentence. Low noise, low vibration, high energy-efficiency ratio and large cooling capacity are the repeated product claims, including under harsh, frequent-extreme conditions. The address is Lingxiazhu Industrial Park, Jindong District, Jinhua. Certificates are not a clean CE / ISO table on the fetched homepage. Missing papers stay missing. Quotes come from Zhejiang Vocke Refrigeration. The plant remains the seller.

Open refrigeration compressors are sold on refrigerant, evaporating temperature, condensing temperature and cooling capacity. They are not sold on FAD. Pick V11, V21 or VKXS4A, or name V12–V31 in prose if that is the tile you saw. If you also want the cold-store engineering package, say so — the homepage sells both. Cylinder-hone and valve-plate notes are construction claims, not a witness-test sheet. FOB Ningbo or Shanghai. Jindong Lingxiazhu is the inspection park. Factory air stays on another desk. 1997, 36-plus patents and 65-plus people are profile figures. They do not print a displacement table. Harsh-condition language on the advantage block is why you send the real evaporating temperature instead of a catalogue photo. Food, medicine and transport cold stores are the named end uses. They still need a refrigerant name on the sheet.