# Arc welding machine Proline 42940, single-unit, inverter/stick welding (model 42940)

**URL:** https://aio.lv/en/product--proline-42940--12031505
**Data updated:** 2026-03-13 15:50 (EET)
**Category:** Welding Machines
**Manufacturer:** Proline
**Manufacturer code:** 42940
**EAN:** 5903755429407
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 167.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 138.42 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-42940--12031505

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Proline 42940 is an arc welding machine designed for manual stick (MMA) welding tasks. Supplied as one unit per pack, it is intended for general metal fabrication, maintenance and repair work where a compact, portable arc welder is required. The listing specifies brand Proline and model 42940; technical details beyond model identity are not provided.

## Long description

Proline 42940 is a compact arc welding machine designed for manual stick (MMA) welding. Supplied as a single unit, this inverter-based welder is intended for general metal fabrication, maintenance and repair work where portability and basic MMA functionality are required. The unit supports standard electrode diameters and includes essential cabling and clamps to start work immediately.
Advantages
The inverter topology and IGBT technology provide stable arc performance and improved energy efficiency compared with conventional transformers. Built-in functions such as Hot Start, Anti Stick and Arc Force facilitate strike and re-strike of the electrode while reducing sticking and burn-through. A compact 4.0 kg housing with fan cooling and thermal protection offers portability and reliable thermal management for intermittent professional and DIY tasks.
Suitable for
 General metal fabrication and workshop welding tasks
 Maintenance and repair on machinery, farm equipment and structural steel
 On-site and mobile welding where a lightweight, single-unit inverter is needed
 Welding with rutile and basic MMA electrodes within the recommended diameter range
Key specifications
 Welding technology: inverter with IGBT components
 Supported functions: Hot Start, Anti Stick, Arc Force
 Recommended electrode diameter: 1.6–4.0 mm
 Work cycle (duty cycle): 30% / 60% depending on current and conditions
 Unloaded nominal voltage: –70 V
 Efficiency: 85%
 Cooling: fan-cooled with thermal protection
 Insulation class: H; Protection class: IP21S
 Included cables and clamps: 1.8 m electrode cable with 200 A holder, 1.2 m ground cable with 200 A clamp
 Weight: 4.0 kg
How to use
Connect the ground clamp securely to a clean, conductive surface on the workpiece or fixture and attach the electrode holder with an appropriate MMA electrode (1.6–4.0 mm). Set welding current based on electrode type and material thickness following electrode manufacturer's recommendations. Use the Hot Start, Anti Stick and Arc Force features as needed to improve arc stability and restart after sticking. Ensure adequate ventilation and keep the fan intake clear of obstructions. Allow the unit to cool according to duty cycle limits to avoid thermal shutdown.
Usage recommendations
Use appropriate personal protective equipment including welding helmet, gloves and protective clothing. Select electrode coating and diameter appropriate for base metal and joint type. Maintain clean cable connections and inspect leads regularly for wear. Operate within the stated duty cycle and ambient temperature limits to prolong service life.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Arc welding machine Proline 42940 cost, and is it available for purchase?

The price is 167.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Arc welding machine Proline 42940 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Proline products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Proline service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12031505/67610105_large.webp