Risan PM VSD and laser all-in-one screw, Wenling

Risan Air is the English face of Risan Electric Co., Ltd. in Wenling. The official homepage () calls the company a designer, builder and service house for screw air-compressor equipment and lists permanent-magnet VSD screw, two-stage first-class energy-efficiency screw, textile low-pressure screw and laser-cutting all-in-one packages as the main products. The address is 26th Street 22, East New District, Wenling. Those sentences are the public file. This desk does not invent a 2017 founding year from a trade-show listing.

Homepage tiles name single-stage fixed-speed screw, single-stage PM VSD screw, two-stage PM VSD screw, a laser-cutting all-in-one, a single-stage low-pressure PM VSD (the page mentions 3 bar textile duty) and a high-speed centrifugal blower. Only RISAN-PM-VSD, RISAN-TWOSTAGE and RISAN-LASER are catalogue SKUs here. Fixed-speed shop frames, 3 bar textile machines and blowers stay on the official nav.

Single-stage PM VSD is a drive story on one oil-injected air-end. Two-stage PM VSD is a compression-ratio story plus a drive story. Laser all-in-one is a higher-pressure, dryer-and-filter package aimed at a cutting head. They do not share a default 8 bar nameplate. If the RFQ only says “Risan screw, Wenling”, the works cannot price it.

kW, bar and FAD stay on the quotation. The fetched homepage did not publish a complete English performance table. This listing will not copy 2.2–630 kW or 0.02–4.0 MPa bands from a fair catalogue onto the official row. Voltage and FOB Ningbo are buyer data unless the quotation names another port.

No ISO, CE or ASME stamp is printed here. The official homepage text that was fetched did not name those papers. Ask Risan for the scan if the destination market needs it.

Single-stage fixed-speed tiles on the homepage name manufacturing, heavy industry, fibre and automotive uses. Single-stage PM VSD tiles name general industry, construction, food and beverage and medical. Two-stage PM VSD tiles name automotive, machinery, electronics and paper. Those are marketing chips. They do not move a medical buyer onto an oil-free architecture this works did not publish as a catalogue SKU here.

A buyer comparing Risan with other East New District screw shops should still put the street address and the series on the PO. Wenling is a cluster. A wrong door is how a laser all-in-one becomes a 7 bar shop package. The homepage slogan line about energy-saving expertise is Chinese marketing. This English dossier uses the street address, the six product tiles and the three catalogue rows instead. Do not paste the slogan onto a European RFQ as if it were a nameplate.

Low-pressure 3 bar textile PM VSD is a real official tile. Textile blowing and spinning air is not laser cutting and not 8 bar assembly air. If 3 bar is the duty, say 3 bar in the remarks and keep it off the laser row. Innovation and manufacturing tiles on the homepage are brochure doors, not performance tables. Ask for the test sheet that matches the quoted series. The plant remains the seller. Risan quotes from Wenling.