WSM-400S 400 A Three-Phase Industrial Inverter Ar | 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 is a vertical industrial inverter arc welding machine intended for heavy-duty equipment sourcing. Its listed electrical data includes a 0–400 A current range, 14.5 kVA rated input capacity, 20 k. Hz inverter frequency, 75 V no-load voltage, 60% duty cycle, and 90% efficiency.
The specification table gives a three-phase 660 V or 1140 V, 50 Hz input power source. Insulation is listed as Class F. The machine is specified for electrode diameters from 0.8 to 5.0 mm.
The supplied description discusses an IGBT-based control system with preset-current, arc-force-current, thermal-protection, and over-current-protection functions. It also states that the control system uses current and voltage loop control and pulse-by-pulse primary-current detection.
The listed machine dimensions are 560 × 280 × 520 mm and the listed weight is 28 kg. A separate packaging specification gives 560 × 280 × 500, so buyers should obtain a confirmed machine drawing and packed dimensions before arranging installation or freight.
Procurement confirmation is important because the supplied information contains configuration differences. The product title mentions 380 V, 660 V, and 1140 V, whereas the model table lists only three-phase 660 V and 1140 V at 50 Hz. Water cooling is also referenced both as a cooling method and as an optional system.
Before purchase, confirm the exact input-voltage configuration, whether water cooling is included, the supported welding processes, supplied accessories, electrode compatibility, protection functions, connector arrangement, final dimensions, and testing documentation for the offered unit.
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 machineBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Model
- WSM-400SBased on visible page data; confirm exact value in the RFQ.
- Style
- VerticalBased on visible page data; confirm exact value in the RFQ.
- Weight
- 28 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.
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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