FAQ / Buyer Questions

Practical answers before you choose, quote, or represent Deyun.

This page is written for buyers who need direct answers: who Deyun is, how the machines are selected, what can be customized, and what information makes an RFQ useful.

40

answered questions

Start with the question closest to your buying task, then move to the RFQ page when the requirement is clear.

01

About Deyun

5 questions

Are you a factory or a trading company?

DEYUN is now a RILAND Group brand. RILAND Group is a publicly listed welding equipment manufacturer in China, listed on the Shenzhen Stock Exchange under stock code 300154. The DEYUN team works on practical MIG/MAG, pulsed MIG/MAG, TIG, low-spatter welding and related industrial welding systems.

What makes Deyun different from a regular low-cost welding supplier?

Deyun focuses on practical welding power without luxury overhead. We work on machines that ordinary workshops, repair shops and fabrication businesses can actually afford, while keeping the welding process serious enough for professional use. The price matters, but the machine still has to weld well, ship consistently and make sense for real work.

Is Deyun connected with RILAND?

Yes. DEYUN is now a RILAND Group brand. RILAND Group is a publicly listed welding equipment manufacturer in China, listed on the Shenzhen Stock Exchange under stock code 300154. DEYUN combines its own product history with RILAND Group's engineering, manufacturing and brand resources.

Where are Deyun machines made?

Deyun machines are made in China. That is part of the value. China's welding equipment industry has built its strength through decades of manufacturing, engineering improvement and export experience. Deyun stands inside that manufacturing tradition and works to make capable welding equipment more accessible to global users.

Can we visit your factory or headquarters?

Yes. We welcome qualified distributors, industry partners and welding content creators to visit RILAND Group's Shenzhen headquarters by appointment. We also welcome welding YouTubers, reviewers and technical creators who want to see Deyun machines, film welding demos or discuss real workshop applications.

02

Products And Welding Processes

12 questions

What welding processes do your machines support?

Deyun's product range covers MMA, MIG/MAG, non-pulse MIG, pulsed MIG/MAG, double-pulse MIG/MAG, low-spatter MIG, DC TIG, AC/DC TIG, plasma cutting, laser welding and robotic welding systems. Availability depends on the model and configuration.

What is pulsed MIG/MAG welding?

Pulsed MIG/MAG uses controlled current pulses to manage heat input, arc behavior and metal transfer. For users, the value is smoother control, better weld formation and stronger performance on materials such as aluminum and stainless steel when the right setup is used.

What is the difference between single pulse and double pulse?

Single pulse is often used for stable welding and smooth bead formation. Double pulse adds another layer of pulse control and can help create a stacked-dime bead appearance, often valued in aluminum and stainless-steel fabrication where both appearance and weld formation matter.

What is low-spatter MIG welding good for?

Deyun low-spatter MIG welders are designed mainly for carbon steel and stainless-steel fabrication. They help reduce spatter, reduce grinding and cleanup work, and keep the weld area cleaner compared with regular MIG machines under suitable welding conditions.

Can your low-spatter MIG welders weld aluminum?

Low-spatter MIG models are mainly built for carbon steel and stainless steel. For aluminum, we usually recommend a pulsed MIG/MAG model or a spool-gun setup, depending on the workpiece, wire, thickness and production style.

Can Deyun machines weld aluminum?

Yes, selected Deyun pulsed MIG/MAG models and spool-gun models can be used for aluminum welding. Aluminum wire is soft, so the machine, torch, wire feeding path, liner, roller and gas setup matter. Please tell us the aluminum thickness, wire size and use case before selecting a model.

What is a spool-gun welding machine?

A spool-gun welding machine places a small wire spool close to the torch. This shortens the wire feeding path, which is especially useful for aluminum wire because aluminum is softer and easier to jam during long-distance feeding. Deyun's spool-gun models are suitable for auto body repair, garage work, thin-sheet repair and light fabrication.

Is a spool-gun welder the same as an auto dent repair machine?

No. A spool-gun welder is a MIG/MAG welding setup with wire feeding close to the torch. A dent repair machine is usually used with studs, washers or pulling accessories. They serve different repair tasks.

What is the difference between knob-control and LCD/digital-control models?

Knob-control models are simple, direct and familiar to many welders. LCD or digital-control models give more precise setting control and may include more advanced software functions, depending on the model. Some users prefer the speed of knobs; others prefer the repeatability and detail of digital settings.

What does water-cooled mean?

A water-cooled welding setup uses a cooling system for the torch, helping manage heat during longer or higher-duty welding work. Air-cooled setups are simpler and can be enough for lighter work. The right choice depends on amperage, duty cycle, torch type and production time.

What is the difference between integrated and separate wire feeder models?

Integrated models keep the wire feeder inside the main machine body. They are compact and convenient for general workshop use. Separate wire feeder models allow the feeder to be taken closer to the workpiece while the power source stays in place, which is useful for shipyards, large structures and long-distance welding work.

Do you offer robotic welding systems?

Yes. Deyun works with robotic welding applications and can discuss welding power sources, process matching and system integration needs. Robotic welding is growing because many workshops face a shortage of skilled welders and need more repeatable production.

03

Model Names And Selection

3 questions

How should I read Deyun model names?

Most Deyun model names show the process, output class and configuration. For example, in MIG-500XW, MIG is the welding process, 500 is the output class, X marks an LCD/digital-control version in the current X series, and W marks a water-cooled configuration. Product pages explain the model codes when they affect selection.

Does the number in the model name equal the exact welding current for every material?

The number usually indicates the output class or maximum output range of the machine. Real welding capacity also depends on material, process, duty cycle, torch setup and configuration. For example, a machine may perform differently on carbon steel, stainless steel and aluminum.

How do I choose the right Deyun model?

The fastest way is to tell us what you weld, material thickness, input power, expected working time, wire size, gas type, preferred control style and whether you need integrated or separate wire feeding. For distributors, we can also help build a model mix for your local market.

04

OEM, ODM And Distributor Cooperation

5 questions

Can I customize the machine with my logo or color?

Yes. We support logo, color, panel design, language, packaging and selected configuration customization. Customization depends on order quantity, certification requirements and the specific model.

Do you offer OEM and ODM support?

Yes. Deyun supports OEM and ODM cooperation for qualified partners. We can discuss product selection, exterior design, panel language, packaging, documentation and market-specific requirements.

Are you looking for distributors?

Yes. Deyun is building distributor partnerships worldwide. We welcome partners who understand welding users in their market, even if they are not the largest company in the country. A good distributor knows the customer, can explain the machine and can support the local market.

What support do distributors receive?

Deyun can support distributors with product information, technical communication, photos and videos, manuals, spare parts planning, model selection support and factory-side engineering communication. For selected partners, factory visits and product filming can also be arranged.

Do distributors need to provide local after-sales service?

For welding equipment, local service matters. Deyun provides factory-side technical support, spare parts and product information, while distributors usually handle the local customer relationship, first-line service and market support. This is the normal structure for industrial equipment sold across countries.

05

RFQ And Order Preparation

5 questions

What information should I include in an RFQ?

A useful RFQ should include the target process, material, thickness range, input voltage, phase, quantity range, destination market, certification needs and whether the request is for resale, production use or technical evaluation.

Can I ask for a model recommendation before quotation?

Yes. If you are not sure which model fits, send the welding task first. We can route the request by process, output class, cooling method, control style and available proof materials before moving into quotation details.

Can you ship to my country?

Deyun works with international export orders. Shipping method, documents and certification requirements depend on the destination country, order size and product type. Tell us your country and target model, and we will confirm the available options.

Can I request documents before placing an order?

Yes. You can request the latest catalog, model information, available certificates, proof videos and reviewed product documents through the Download Center or RFQ page.

Where should commercial details be discussed?

Commercial details are handled through direct inquiry after the model, market, configuration and document requirements are clear.

06

Certification And Documentation

3 questions

Do your machines have CE certification?

CE and ISO documents are available on request. Please tell us the target market and model so we can confirm the correct document package for your quotation or distributor review.

Do you provide manuals, spec sheets and test documents?

Yes. Deyun can provide manuals, specification sheets, product photos, product videos and available certification documents. For shipment, QC records or testing videos can be discussed depending on the order and model.

Can you provide documents for distributors to use in local sales?

Yes. We can provide product information, model explanations, photos, videos, manuals, comparison points and technical notes for distributor sales teams. We are also building clearer product pages and downloadable materials so partners can answer customer questions faster.

07

Quality Support And Spare Parts

5 questions

How do you ensure product quality?

Every machine goes through factory inspection before shipment. The process can include function testing, load testing, aging tests and final checks. Experienced technicians also pay attention to arc behavior and welding sound during tuning, because a well-adjusted machine feels different when it welds.

How is after-sales support handled?

After-sales support is confirmed by model, order agreement and local distributor structure. For distributor projects, spare parts planning and technical communication can be discussed before sales begin.

Do you provide spare parts?

Yes. Spare parts support is available. For distributors, we recommend planning common spare parts together before sales begin, especially for models expected to sell in volume.

Do you provide technical support?

Yes. Deyun provides factory-side technical communication for product selection, setup, troubleshooting and spare parts. For overseas end users, local distributors are usually the first support contact, with Deyun supporting the distributor from the factory side.

Can you provide welding demo videos before shipment?

For selected orders and models, welding demo videos or testing videos can be arranged. This is especially useful for distributors evaluating a new model or preparing local sales materials.

08

Before You Ask For A Quote

2 questions

What information should I send for a faster quotation?

Please send your country, target process, material, thickness range, input voltage, expected quantity, preferred model if any, certification requirements and whether you need OEM customization. If you are a distributor, tell us about your market, customer type and current welding product range.

I am not sure which model I need. Can you help?

Yes. Tell us what you want to weld and how the machine will be used. Deyun can help narrow the choice between standard MIG/MAG, low-spatter MIG, pulsed MIG/MAG, TIG, spool-gun models, water-cooled machines and separate wire feeder configurations.

Still not sure?

Send the material, thickness, input power and target market. We can narrow the model path.

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