ARCPRO-220S: The New Global Benchmark for 220A DC Inverter Welders

100% Duty Cycle @ 220A / 40°C | True 6010 Performance | Single-Phase 220V | VRD & Generator-Ready | Worldwide Support

The ARCPRO-220S is not just another inverter welder. It is engineered for one purpose: to deliver relentless, uninterrupted power in the harshest environments — from desert pipelines to high-altitude mines, from humid shipyards to remote infrastructure projects.

With over 700,000 welding units produced annually, KeyGree has the scale and expertise to build a machine that doesn’t just compete — it sets a new global benchmark.

Why Welders Worldwide Are Switching to ARCPRO-220S

✅ 100% Duty Cycle @ 220A / 40°C – Full output even in extreme heat (tested per IEC 60974-1)

✅ True 6010 Performance – Aggressive arc for root passes, vertical-down, and rusty materials – comparable to leading brands

✅ Universal Input – 220V ±15% single-phase – works on standard grid and generator power across the globe

✅ Global Certifications – CE, ISO 9001, BSCI, FCCA – compliant with international safety and quality standards

✅ Built for Harsh Environments – IP23 rated, multiboard 2layer design for thermal stability and durability

Full Feature Set – Engineered for Versatility

DC Inverter Technology

● Energy-efficient, stable arc, lightweight (~15 kg) for easy transport to any job site

Multi-Process Capability

● MMA (Stick)– Optimized for 6010/6011/6013/7018 electrodes

● LIFT TIG– 10A starting current for precision TIG welding on thin materials

Advanced Protection Systems

● Undervoltage / Overvoltage / Overcurrent Protection– Safeguards against unstable grid or generator power

● Generator Compatible– Stable arc even on portable generators commonly used in remote areas

Operator-Friendly Controls

● Arc-Force Adjustable– Customize digging action for different electrodes

● Hot Start– Easy ignition, no sticking

● Anti-Stick– Automatically reduces current if electrode sticks

● VRD ON / OFF– Voltage Reduction Device for safety (switchable for applications requiring high OCV)

Rugged Construction

● 2-Layer, Multi-Board Design– Superior thermal management and reliability

● IP23 Rating– Dust and water resistant for outdoor use

Remote Ready

● Wired Remote Control(included) – Adjust amperage from up to 50m away

Optional LCD Display

● Real-time amp/volt readout, preset memory, and diagnostics

Specifications — Engineered to Outperform

Comparison based on published specifications of leading brands in the 200–250A class.

Proven Performance Across the Globe – Real-World Service Cases

Middle East / North Africa – Pipeline Construction in Extreme Heat

Location: Desert pipeline project, 48°C ambient

Challenge: Continuous 6010 root pass welding on 36" pipe; unreliable generator power.

Solution: ARCPRO-220S ran at 210A for 10+ hours without thermal shutdown. Undervoltage protection prevented damage during generator fluctuations.

Outcome: Project completed ahead of schedule; contractor ordered 20 more units.

South America – Mining Equipment Repair at High Altitude

Location: Andes Mountains, Peru – 4,500m elevation

Challenge: Thin air affects engine generators and welder cooling.

Solution: ARCPRO-220S's 2layer board design and efficient cooling maintained 100% duty cycle. Wired remote allowed operator to adjust amperage while inside equipment.

Outcome: Reduced downtime by 30%; now standard in three mine sites.

Southeast Asia – Shipbuilding & Offshore Fabrication

Location: Shipyard, Vietnam – high humidity, salt spray

Challenge: Corrosion resistance and reliable TIG starting for stainless steel piping.

Solution: IP23 rating protected against splashes; Lift TIG with 10A start enabled precision on thin-wall pipes.

Outcome: Approved by shipyard QA; repeat orders for 50 units.

Europe – Structural Steel Fabrication

Location: Germany – indoor shop with strict safety standards

Challenge: Need VRD for operator safety and CE compliance.

Solution: ARCPRO-220S with switchable VRD met all EU directives. Arc-force adjustment optimized 7018 welds on thick beams.

Outcome: Replaced older machines; feedback praised stability and ease of use.

Southeast Asia – Shipbuilding & Offshore Fabrication

Location: Remote village bridge repair, Kenya

Challenge: Only small generator available; need robust machine for field repairs.

Solution: ARCPRO-220S ran smoothly on a 5 kVA generator. Anti-stick feature saved electrodes for inexperienced operators.

Outcome: Local NGO standardized on Keygree for all future projects.

Europe – Structural Steel Fabrication

Location: Equipment rental company, Texas

Challenge: Renters demand reliable 6010 performance but often misuse machines.

Solution: ARCPRO-220S's overcurrent protection and anti-stick reduced damage claims. 100% duty cycle means no overheating even during heavy use.

Outcome: Rental utilization increased 25%; company expanding fleet.

Global Service & Support – We're Where You Are

At WENZHOU KEYGREE ELECTRIC CO., LTD, we don't just sell machines – we build partnerships worldwide. With an annual production capacity of 700,000 welding units, we ensure consistent quality, availability, and support.

● Worldwide Shipping:Fast delivery from our factories and regional warehouses (Americas, Europe, Asia, Africa).

● Technical Support:Multilingual team ready to assist via email, WhatsApp, or video call.

● Spare Parts Network:Dedicated distributors stock consumables and spare parts.

● Training & Documentation:Comprehensive manuals, welding guides, and video tutorials available in multiple languages.

● Certification Assistance:We provide all necessary documentation for CE, ISO, and local approvals.

Why Leading Distributors & End Users Choose KEYGREE

● 70% Year-on-Year Export Growth– Trusted in over 80 countries

● In-House R&D– Continuous innovation in inverter technology

● Quality Assurance– ISO 9001 certified manufacturing, BSCI audited, FCCA compliant

● OEM/ODM Capabilities– Custom branding, packaging, and features for volume partners

● Upcoming CNAS Accreditation– Strengthening our testing capabilities to international standards

Ready to Experience the ARCPRO-220S Difference?

We offer:

◇ Certified duty cycle curves (IEC 60974-1)

◇ 6010 weld test videos — root pass, vertical-down, pipe positions

◇ Global distributor pricing and volume partner terms

◇ Demo units for qualified partners

◇ Private label options for volume buyers

Contact us:

Website: www.keygree.com

KEYGREE GROUP CO., LTD.

Manufacturer of High-Quality Welding Equipment Since 2009

Output: 700,000 Units Annually | Certifications: CE, ISO 9001, BSCI, FCCA | CNAS in Progress