WSM-400S / WSM-500S DC IGBT Inverter Arc Welding | RFQ Sourcing Details
Arc Welding Machines · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Arc Welding Machines. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
The WSM-400S and WSM-500S are vertical DC inverter arc welding machines intended for industrial welding equipment procurement. Both models use a three-phase 660 V or 1140 V, 50 Hz input and operate at a stated 20 k. Hz inverting frequency.
The WSM-400S provides a stated current range of 0–400 A, while the WSM-500S provides 0–500 A. The described control board combines IGBT drive and control functions. Supported functions include preset current, arc-force current, thermal protection, pulse-by-pulse primary-current detection, and over-current protection.
The source information also states that the board integrates a hard-switching 3846 drive system with current-loop and voltage-loop control. Listed uses include coated electrodes, acid and alkaline electrodes, gouging, and steel-bar butt welding.
Both models have a stated 75 V no-load voltage, 60% duty cycle, 90% efficiency, Class F insulation, and a listed machine size of 560 × 280 × 520 mm. The WSM-400S weighs 28 kg and accepts stated electrode diameters from 0.8 to 5.0 mm. The WSM-500S weighs 30 kg and accepts stated electrode diameters from 0.8 to 6.0 mm.
Water cooling and a vertical configuration are listed, and customization is identified as available. Procurement note: the source material also contains separate descriptions of MIG/MAG pulse equipment and optional accessories.
Buyers should therefore confirm the exact welding processes, cooling configuration, included control board, accessories, connectors, and supplied package for the selected WSM model.
The required input voltage, rated capacity, duty-cycle test conditions, electrode range, dimensional drawing, and compliance documentation should also be verified before ordering.
WSM-400S | Applications and Buyer Notes
WSM-400S is organized as a sourcing-ready Arc Welding Machines reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time que
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Arc Welding MachinesBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Models
- WSM-400S;WSM-500SBased on visible page data; confirm exact value in the RFQ.
- Weight
- WSM-400S: 28 kg;WSM-500S: 30 kgBased on visible page data; confirm exact value in the RFQ.
- Dimensions
- 560 × 280 × 520 mmBased on visible page data; confirm exact value in the RFQ.
- Duty Cycle
- 60%Based on visible page data; confirm exact value in the RFQ.
- Efficiency
- 90%Based on visible page data; confirm exact value in the RFQ.
- Input Power
- Three-phase 660 V / 1140 V, 50 HzBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
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