Longxing Welding and Cutting

Ningbo Longxing Welding Cutting Technology Stock Corporation sits in Hengxi, in the Yinzhou district of Ningbo. The company describes its business as the development, production and sale of welding and cutting tools, welding materials and equipment. It dates its start to 1982 and a shareholding restructuring to 2005.

The product centre is laid out for gas work. Kits, torches, tips and pressure regulators each have their own category, so you can buy a complete outfit or a single spare part. Next to the gas range sit electrode holders and return clamps, gas-shielded welding items, consumables, other accessories and semi-automatic cutting machines. Name the exact family and part you want in your first message. Ask in the same message where that item is made and how long it takes to ship, so the answers arrive on one dated quote.

Sources [1]

China's national standards information service lists Ningbo Longxing among the drafting organizations for GB/T 43322-2023, Gas welding equipment, Air-aspirated welding blowpipes. The standard was published on 27 November 2023 and came into force on 1 June 2024. The Chinese company name on that record matches the name on Longxing's own introduction page.

For a buyer this shows hands-on experience with blowpipe design at the level of a national standard. Conformity of a particular torch, regulator or kit is a separate question with its own paperwork. When you shortlist a model, ask for the requirements it was built to, a dated declaration and the matching test report. The company website also mentions certifications and its market position. Request the actual certificates behind those statements for each model you plan to import.

Sources [2]

Start with the operation: welding, brazing, heating or cutting. Describe the workpiece and the result you need. Then name the fuel gas, the oxygen or air arrangement and how gas reaches the bench, from single cylinders or a manifold. A kit title on its own leaves open which gases and connections it suits. Ask Longxing to price the torch body, mixer, cutting attachment, tip sizes, hose connections and regulator models as separate lines.

If you are adding to equipment you already run, send the part numbers and drawings of the pieces you will keep. Two tips can look alike and still fit different torches, and hose ends vary between regulators. Ask which swaps Longxing approves and which parts must ship together. The quote should split the standard kit from optional attachments, spare tips and anything you supply on site, so a catalogue photo never stands in for a full bill of supply. For repair jobs where cylinders are awkward to bring, an electrode set from the MMA range is the usual electric option. Brazing and heating stay gas work.

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Regulators are a product family of their own at Longxing. Before asking for a model, write down the gas, the cylinder or manifold inlet connection, the inlet pressure you expect, the outlet range you need and the flow your torches draw. Ask Longxing to state the connection standard and thread direction in words, because regional labels and pictures vary. Gauge scale, working pressure and maximum inlet pressure are three different values, so ask for each one.

If several torches share one supply, say whether they run at the same time. Longxing's catalogue covers components, and the full gas system on your site still needs a design. A competent installer should assess the assembled supply against the operating rules that apply to you. Request the instructions for the specific regulator, the upstream and downstream parts it works with and any limits on its use. Our nameplate guide covers electric welding sources, yet the habit carries over: read the rated inlet and outlet values on the regulator itself and look past the headline range.

Sources [1]

Longxing sells welding and cutting tips apart from complete torches. To order a replacement, give the existing torch and attachment, the fuel gas, the tip designation, the thickness range and the cut or joint quality you expect. Ask whether the tip drops straight in or needs a different mixer, nozzle seat or connection. Two catalogues can print the same nominal size for tips that do not interchange, so get the fit stated by Longxing.

For production cutting, describe the condition of the plate and the edge you want. Ask for the setup recommended in the model's operating documents, then try it on an agreed sample. For heating or brazing, give the part geometry, the material pair and how the heat should spread. Heating tips and cutting tips are chosen differently, even when both run off the same cylinders. File the spare parts offered and their order codes together with the original equipment specification, so a reorder months later matches the first delivery.

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If a kit will weld or cut the same joint again and again, run a sample on the exact torch and tip before the full order, following our trials guide. Agree beforehand who judges the result and by which criteria. Keep the sample record tied to the configuration that will ship.

Ask for a named packing list, the markings each component carries and the operating instructions for every item. Record the torch, regulator, tip and hose identifiers on the order. Any substitution then shows up before the goods leave Ningbo. For repeat buying, settle how you will source replacement tips, who services the regulators and how Longxing tells you about a changed part revision.

Sources [1]

Get these answers in a dated written reply to your brief. First, the price, stock position and export lead time for the quoted items. Second, written confirmation that each tip, hose and regulator suits your torch and gas, based on the part numbers you sent. Third, the conformity documents your destination requires, with model coverage, issuing body and validity shown on each one. A logo on the website is a starting point for that request.

Ask also how performance will be judged on your own work, and who on each side signs off the sample. Agree what happens if Longxing needs to change a part before shipment. When you place Longxing beside other suppliers, compare quotes on the same scope: the same components, documents, sample terms and spare-part support.

Compare the published product scope

Product families serve different tasks. Use the configuration and acceptance questions to request a quotation for the same work.

On a small screen, scroll sideways to read all three columns.

Buyer questions

Sources

Facts on this page come from the manufacturer's own publications and the public records listed below, checked on the date shown. Ask the manufacturer to confirm the exact configuration, documents and terms for your order in writing.

1. Ningbo Longxing · Longxing company introduction

   Manufacturer publication · Checked 2026-10-11

   Gives the legal name, Ningbo address, company history and the product families Longxing covers.

2. National Public Service Platform for Standards Information · GB/T 43322-2023 standards record

   Public record · Checked 2026-10-11

   Lists Longxing as a drafting organization for the air-aspirated blowpipe standard, with publication and implementation dates.

3. Ningbo Longxing · Longxing product centre

   Manufacturer publication · Checked 2026-10-11

   Shows the product categories and model listings, useful for naming the right part family in an enquiry.

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