Knowledge Hub & Insights
Knowledge Hub & Insights
Compact high-frequency inverter ARC welder designed for lightweight column & boom manipulator mounting and mobile workshop maintenance across Sri Lankan project sites.
Dual-voltage synergistic welding power source optimized for precise seamless wire feeding on semi-automatic cross-slide welding manipulators.
Advanced 6-axis robotic welding manipulator engineered for heavy structural steel fabrication, tank joints, and marine hull construction in Colombo Dockyard.
Ultra-portable auxiliary power block suitable for secondary tack-welding operations alongside primary longitudinal seam manipulators.
Heavy-duty 630A continuous duty cycle welding power engine designed for heavy gauge plate jointing on automated column and boom manipulators.
Heavy-transformer AC welding source engineered for deep penetration on low carbon steel pressure vessels and structural girders.
Advanced IGBT module-driven MIG/MAG power supply offering smooth wire feeding, integrated seam tracking signals, and zero-spatter arc characteristics.
Industrial-grade multi-process power generator designed for seamless integration with motorized rotating manipulators and automated longitudinal seamers.
The industrial manufacturing sector in Sri Lanka is undergoing a major transformation. Driven by large-scale maritime projects such as the Colombo Port City Expansion, dry-dock vessel overhaul at Colombo Dockyard PLC, and expanding energy infrastructure across Hambantota and Trincomalee, fabrication engineering demands have shifted from manual stick welding (SMAW) toward high-efficiency automated welding stations. Central to this evolution are custom OEM welding manipulators—specifically Column and Boom Manipulators, Heavy Tank Turning Rolls, and Precision Rotary Positioners.
Welding manipulators provide mechanical torch positioning that eliminates human operator fatigue while maintaining consistent travel speed and arc length. Our OEM manipulator architecture features dynamic counter-weighted vertical lift mechanisms, precision-ground V-guide rails, and inverter-controlled stepless speed drives (AC variable frequency drive systems). This ensures zero backlash during longitudinal travel along girders, cylindrical pressure vessels, or specialized marine structures.
For Sri Lankan fabricators dealing with severe coastal humidity and high ambient operational temperatures (up to 45°C), all linear guidance systems are equipped with anti-dust scrapers, IP55-rated enclosures, and heavy tropicalized electrical winding insulation to prevent dielectric breakdown under tropical conditions.
Modern pressure vessel manufacturing—such as LPG storage spheres, palm oil storage tanks, and steam boiler drums operating in Western and Southern Sri Lanka—requires deep-penetration radiographic quality welds (X-ray Class 1). Our customized manipulators integrate Submerged Arc Welding (SAW) heads with automatic flux feeding, heating, and recovery systems. By coupling digital Arc Voltage Control (AVC) with laser optical seam tracking sensors, the manipulator boom automatically adjusts torch altitude and horizontal offset in real-time (reaction latency <15ms), compensating for thermal plate distortion during heavy wall thickness multi-pass welding.
| Manipulator Model Series | Effective Lift / Reach (mm) | Max Boom Load Capacity | Travel Speed Range | Recommended Sri Lankan Application |
|---|---|---|---|---|
| Parag-CBM Standard OEM | 1500 x 1500 to 4000 x 4000 | 150 kg - 350 kg | 100 - 1500 mm/min (VFD) | General Metal Fabrication, Structural Beams |
| Parag-CBM Heavy Industry | 5000 x 5000 to 8000 x 8000 | 500 kg - 1200 kg | 120 - 2000 mm/min (Servo) | Shipyard Hull Sections, Heavy Boiler Drums |
| Parag-RoboTrack 6-Axis | Custom Radial Reach up to 3500 | Robotic Head Mount (30-80 kg) | 0 - 3000 mm/min Continuous | Automated Pipe Flange Welding, Complex Geometry |
| Parag-TTR Turning Roll Set | Vessel Dia: 300 mm - 6000 mm | 5 Ton - 100 Ton Payload | 100 - 1000 mm/min Rotational | LPG Tanks, Chemical Autoclaves, Penstocks |
A primary failure point for imported welding automation equipment in Sri Lanka is voltage fluctuation across regional industrial estates such as Sapugaskanda, Ekala, and Katunayake. Paragweld’s customized OEM manipulators feature heavy-duty wide-tolerance power supply modules capable of operating flawlessly under ±15% voltage swings. Furthermore, our control panels utilize low-harmonic line reactors to protect sensitive PLC circuitry from high-frequency plasma or TIG arc ignition noise.
Deployed in major port zones like Colombo Dockyard and Hambantota Dry Docks. Our manipulators execute continuous longitudinal butt welds on ship hull plates, structural bulkheads, and barge deck assemblies, delivering marine-class certified penetration.
Sri Lanka’s push for hydroelectric expansion in the Central Highlands requires heavy steel penstock pipe welding. Paragweld column and boom systems integrated with self-aligning rotator rolls ensure flawless circumferential girth seams under rigorous hydro-testing.
Industrial tea drying drums, rubber vulcanizing autoclaves, and agricultural processing vessels manufactured in Gampaha and Kurunegala utilize our customized lightweight TIG/MIG welding manipulators for corrosion-resistant stainless steel seam joints.
Heavy storage spheres for petroleum refineries and water treatment pressure tanks require strict Class 1 radiographic compliance. Our automated submerged arc welding manipulators yield smooth, defect-free weld beads that pass 100% UT and X-ray inspections.
Sri Lanka’s urban infrastructure projects demand heavy box girders and H-beams. Manipulator-mounted twin-wire SAW welding systems enable high-speed simultaneous fillet welding, reducing overall shop fabrication lead times by up to 65%.
For mining, cement plants (Jaffna/Puttalam), and heavy equipment maintenance, our manipulators automate hardfacing cladding processes on crusher rollers, pulverizers, and wear-resistant plates, extending machine service life significantly.
The manufacturing ecosystem in Sri Lanka is shifting rapidly toward technological modernization to remain globally competitive. Key economic and industrial trends impacting procurement decisions for welding automation include:
Founded by Mr. Parag Mashruwala in GIDC Vatva, Ahmedabad, India, Paragweld brings over 44 years of heavy engineering experience. We are an established global manufacturer and exporter of MIG, TIG, ARC, Submerged ARC machines, and welding automation solutions.
Every Sri Lankan industrial project is unique. Our in-house R&D team custom-engineers column stroke lengths, cross-slide stroke distances, payload capacities, seam tracking sensors, and localized electrical wiring to meet your precise shop floor layout.
From pre-sale CAD layout simulations to on-site commissioning guidance in Colombo, Kandy, or Galle, our technical engineering team ensures rapid installation, operator training, and reliable supply of genuine OEM spare parts.
Contact our senior engineering team today to receive a customized CAD technical design, custom price quote, and ROI calculation for your automated welding manipulator requirements.