Top Arc Welding Machines in Nigeria: Comparison and Price Guide

Introduction

In metal fabrication and industrial construction, arc welding machines are the heartbeat of nearly every project. From roadside mechanics to large-scale steel structure contractors, reliable welding equipment is non-negotiable especially in 2025 where Nigerian buyers face two key challenges: avoiding substandard machines and choosing the right equipment based on job type and power availability.

At Tikweld Products and Services, we understand that not all welding machines are created equal. This guide will walk you through the top arc welding machines available in Nigeria today, highlighting key specifications, pricing expectations, and what to consider before you buy. Whether you're looking for a compact unit for light repairs or a powerful 3-phase beast for heavy-duty operations, we’ve got you covered.

What Is an Arc Welding Machine?

An arc welding machine uses an electric arc to melt and fuse metals together at high temperatures. When an electrode touches the metal surface and pulls slightly back, it creates a high-heat arc that melts both the workpiece and the electrode, forming a solid bond upon cooling.

Types of Arc Welding Machines:

• SMAW (Shielded Metal Arc Welding) – a.k.a. stick welding
  
  
• MMA (Manual Metal Arc Welding) – common for both field and shop work
  
  
• Inverter Arc Welding Machines – newer tech with better energy efficiency and portability
  
  

These machines are widely used because they:

• Tolerate dirty or rusty metals better than MIG or TIG
  
  
• Work well in outdoor environments
  
  
• Are relatively affordable and simple to operate

Kaierda inverter manual arc welding machine ZX7-630S

Key Features to Consider When Buying

Before making a purchase, especially in the Nigerian market where power fluctuations and high workloads are common, it’s essential to understand the core features that affect performance:

Input Voltage & Phase

• 1-phase (220V) for homes or small workshops
  
  
• 3-phase (380V) for factories and industrial sites
  
  

Amperage Range

• Determines what thickness of metal you can weld.
  
  
• 200A is great for mild steel; 630A is ideal for thick industrial steelwork.
  
  

Duty Cycle

• Represents how long the machine can run continuously in a 10-minute window without overheating.
  
  
• A 60% duty cycle means 6 minutes of welding, 4 minutes of rest.
  
  

Portability & Weight

• Lighter inverter models are better for mobile work or frequent moves.
  
  

Cooling and Overload Protection

• Essential in Nigeria’s high-temperature working conditions.
  
  

Kaierda Inverter/Arc Welding machine ZX7-200N/220V/DC

Available Kaierda Arc Welding Machines in 2025

At Tikweld Products and Services, we currently offer two top-performing models from the Kaierda brand, a globally trusted manufacturer of industrial welding equipment:

Kaierda ZX7-200N (1 Phase, 220V)

• Amperage: 200A
  
  
• Voltage: 220V (single-phase)
  
  
• Application: General metal repair, gate fabrication, workshop use
  
  
• Features: Inverter technology, lightweight, anti-stick, easy arc start
  
  
• Best For: Small businesses, technicians, DIY welders
  
  

This is your go-to option if you need a reliable, portable arc welding machine that runs on standard Nigerian household or workshop power. It’s compact but powerful enough for daily welding jobs.

Kaierda ZX7-630S (3 Phase, 380V)

• Amperage: 630A
  
  
• Voltage: 380V (three-phase)
  
  
• Application: Industrial-grade welding for thick steel and structural jobs
  
  
• Features: High duty cycle, rugged build, efficient cooling, overload protection
  
  
• Best For: Construction sites, fabrication plants, shipyards

Designed for continuous heavy-duty operations, this machine is engineered to perform in high-demand environments. If you run an industrial fabrication plant or large-scale welding outfit, the ZX7-630S is your reliable workhorse.

Kaierda Inverter DC MMA Welding Machine ZX7-500N (3 Phase, 380V)

• Amperage: 500A
  
  
• Voltage: 380V (three-phase)
  
  
• Application: Heavy-duty welding of thick structural steel, pipelines, and industrial equipment
  
  
• Features: High amperage output, digital control panel, inverter technology, overload and overheat protection, stable arc performance
  
  
• Best For: Oil & gas welding, shipyards, fabrication shops, pressure vessel manufacturing
  
  

Kaierda Inverter DC MMA Welding Machine ZX7-400N

Kaierda Inverter DC MMA Welding Machine ZX7-400N (3 Phase, 380V)

• Amperage: 400A
  
  
• Voltage: 380V (three-phase)
  
  
• Application: Medium-heavy welding jobs including beam structures, machine components, and general industrial fabrication
  
  
• Features: Reliable arc stability, efficient cooling system, arc force adjustment, compatible with electrodes up to 5.0mm
  
  
• Best For: Construction contractors, general fabrication shops, plant maintenance crews
  
  

Kaierda Inverter DC MMA Welding Machine ZX7-315N (3 Phase, 380V)

• Amperage: 315A
  
  
• Voltage: 380V (three-phase)
  
  
• Application: Light to medium-duty welding, workshop production, small-scale structural welding
  
  
• Features: IGBT inverter technology, energy efficient, compact design, anti-stick & hot start functions
  
  
• Best For: Mobile welding units, metalwork businesses, SMEs, gate & grill fabrication
  
  

Kaierda Inverter TIG/MMA Welding Machine WS-T250S (1 Phase, 220V)

• Amperage: TIG: up to 250A | MMA: up to 200A
  
  
• Voltage: 220V (single-phase)
  
  
• Application: Precision TIG welding and stick welding for stainless steel, aluminum, pipe fitting, and automotive work
  
  
• Features: High-frequency TIG start, dual-mode function (TIG & MMA), digital display, adjustable post-flow and arc force
  
  
• Best For: TIG professionals, pipe welders, automotive repair shops, stainless steel fabricators

Kaierda Welding Machine Comparison Table

Here’s a quick comparison of the two Kaierda arc welding machines available at Tikweld Products and Services:

N.B: The below prices are valid at the time of publication, kindly note prices are subject to change as prices fluctuate. Kindly contact 08053098764 to confirm price validity.

Kaierda Inverter TIG/MMA Welding Machine WS-T250S

Real-World Applications of Kaierda Arc Welders

Kaierda ZX7-200N

• Workshop Use: Ideal for gate and railing fabrication, furniture frame welding, general-purpose metal repair.
  
  
• Mobile Welding Jobs: Easy to transport for on-site work such as auto body shops, farm tool repair, and small-scale structural welding.
  
  
• Small Construction Sites: Perfect for rural or urban building crews needing lightweight, high-output performance.
  
  

Kaierda ZX7-630S

• Large-Scale Fabrication: Suited for thick metal plates, beams, columns, and structural parts that require long continuous welding sessions.
  
  
• Shipbuilding, Rigging, and Steel Structure Works: Excellent arc stability and amperage range for high-quality welds under demanding conditions.
  
  
• Industrial Plants: Ideal for manufacturers needing robust, three-phase equipment to meet production demands.

Kaierda Inverter DC MMA Welding Machine ZX7-500N (3 Phase)

• Heavy Equipment Fabrication:
  Perfect for welding large-scale industrial components such as machine frames, storage tanks, and industrial platforms where high amperage and long-duty cycles are required.
• Oil & Gas Infrastructure:
  Ideal for pipeline assembly, pressure vessel welding, and heavy-duty repairs in energy sector projects due to its deep arc penetration and reliability.
• High-Output Production Environments:
  Recommended for manufacturers that demand continuous arc performance on thick metals in multi-shift operations. Stable arc, excellent efficiency, and robust thermal control ensure consistency in long welding cycles.

Kaierda Inverter DC MMA Welding Machine ZX7-400N (3 Phase)

• Structural Steel Welding:
  Well-suited for beam and truss fabrication in commercial construction projects. Offers enough power to handle 4.0mm–5.0mm electrodes with stable arc quality.
• General Industrial Fabrication:
  A great match for medium-heavy industries requiring precise arc welding for machinery frames, containers, and chassis.
• Maintenance and Repair Teams:
  Ideal for plant maintenance departments who need a balance of mobility and high performance in a three-phase workshop environment.

Kaierda Inverter DC MMA Welding Machine ZX7-315N (3 Phase)

• Workshop Fabrication:
  Designed for small- to medium-sized workshops handling frequent welding of mild and low-carbon steel components such as gates, grills, and metal doors.
• Agricultural Equipment Repairs:
  Reliable for welding tools, plow frames, and other implements used in farm machinery repair.
• Site Work with Generator Power:
  Its moderate power requirement makes it a solid option for on-site welding powered by diesel generators, with minimal voltage sensitivity and stable arc characteristics.

Kaierda Inverter DC MMA Welding Machine ZX7-315N

Kaierda Inverter TIG/MMA Welding Machine WS-T250S (1 Phase)

• Stainless Steel & Pipe Welding:
  Perfect for fine TIG welds on stainless steel and thin materials. Ideal for pipefitters, boilermakers, and HVAC technicians working with food-grade or precision pipework.
• Auto Body and Metal Furniture Manufacturing:
  Dual-mode capability allows users to switch from precision TIG welds to stick welding for frame reinforcements and brackets in auto and metal craft industries.
• Light Fabrication Workshops and Job Shops:
  Runs efficiently on single-phase power, making it an excellent fit for small business owners, light-duty fabrication shops, and technical training institutions.

Where to Buy Genuine Kaierda Arc Welding Machines in Nigeria

With the Nigerian market flooded with low-quality imitations and unreliable machines, buying from trusted sources is essential. Here’s how to protect your investment:

Shop From Verified Dealers Like Tikweld products and services

• Nationwide delivery with after-sales support.
  
  
• Genuine Kaierda warranty and product manuals.
  
  
• Technical assistance and setup guidance.
  
  

Avoid Common Pitfalls

• Beware of sellers offering significantly cheaper prices — they may be selling fake or refurbished units.
  
  
• Always check for voltage compatibility, product labeling, and warranty cards.
  
  
• Look for inverter models with sealed circuit boards for durability in dusty environments.
  
  

Safety Tips for Using Arc Welding Machines

Arc welding can be dangerous if not handled correctly. Whether you're a beginner or an experienced technician, following safety protocols is critical:

Basic Welding Safety Guidelines:

• Wear protective gear: welding helmet, gloves, boots, apron, and safety goggles.
  
  
• Avoid moisture: Never weld in wet areas or with damp clothing.
  
  
• Ensure proper ventilation: Prevent inhalation of welding fumes.
  
  
• Check cables regularly: Look for damaged insulation or frayed wires.
  
  
• Ground the machine properly: Reduces risk of electric shock.
  
  

Always switch off and unplug the machine when not in use, especially in high-traffic job sites.

Kaierda Inverter DC MMA Welding Machine ZX7-500

Frequently Asked Questions (FAQs)

Can I use the Kaierda ZX7-200N for professional work?

Yes. It is perfect for workshop-based jobs, small projects, and even mobile welding services, thanks to its compact design and powerful arc.

What generator size is needed to power the ZX7-200N?

A 5–6.5 KVA generator is sufficient for most arc welding jobs with the ZX7-200N.

Is the ZX7-630S too powerful for small jobs?

Yes — the ZX7-630S is built for continuous heavy-duty use. It’s best suited for industrial environments where thick metal and high productivity are required.

Do Kaierda machines come with a warranty?

Yes. When you buy from Tikweld Products and Services, your Kaierda welding machine comes with a manufacturer-backed warranty and after-sales support.

Can I use Kaierda arc welding machines with solar inverters?

Not recommended. Arc welders draw high current and require stable power, which most inverters (unless industrial-grade) cannot support.

Conclusion

In 2025, arc welding remains the backbone of fabrication and structural work across Nigeria. Whether you're running a small workshop or overseeing industrial-scale operations, reliable, efficient, and safe welding machines are key to your success.

The Kaierda welding machines strike the right balance between performance, durability, and price. Both are available now at Tikweld Product and Services, complete with expert support and nationwide delivery.