How Valentek transformed an obsolete machine into a fully automated Valentek CP 2.0 circumferential welding cell, interconnected for Industry 4.0/5.0, delivering 10 units/hour in a continuous cycle.
The Industrial Challenge:
Revamping a 1997 Mechanical Asset
A leading manufacturer of domestic hot water boilers and tanks based in Rovigo had a welding machine dating back to 1997 in its workshop. Due to a major, unresolved electrical system fault, the machinery had been downgraded to a simple “manual rotary table.” The original operation presented critical issues that were no longer sustainable by modern manufacturing standards:
- High labor intensity: Continuous operator presence required to monitor the joint.
- Bottlenecks: Prolonged downtime during positioning, clamping, and unloading phases.
- Inconsistent quality and repeatability: Constant risk of arc defects and production scrap.
Rather than incurring the cost of purchasing a brand-new machine, corporate management relied on Valentek engineering for a Full Revamp and Digital Retrofit.
Comparative Analysis:
Before vs. After Revamping (CP 2.0)
| Feature / Parameter | Legacy System (1997 Model) | Upgraded Valentek CP 2.0 Cell |
| Process Automation | ❌ Manual (used merely as a basic positioner) | ✅ 100% Automated continuous cycle |
| Control Integration | ❌ Faulty analog control panel | ✅ Touchscreen PLC/NC with pre-set welding recipes |
| Arc Control & Tracking | ❌ Continuous visual monitoring by the operator | ✅ EWM welding power source + LASER joint tracking & seam sensors |
| Kinematics & Clamping | ❌ Worn-out mechanical drives | ✅ Brushless motors + High-pressure hydraulic clamping |
| Operator Safety | ❌ Missing / obsolete perimeter safety guards | ✅ Automatic pneumatic doors + CE-certified enclosures |
| Production Output | ❌ Inconsistent and low productivity | ✅ 10 water heaters/hour (Ø 600 mm, 3 mm thickness) |
| Digitalization & Data | ❌ No data connectivity | ✅ Industry 4.0/5.0 ERP system interconnection |
Re-Engineering & Technological Architecture: Valentek CP 2.0
Only the solid structural main frame was preserved from the 1997 machine. Everything else was completely cleared out, redesigned, and custom-engineered around the standards of the Valentek CP 2.0 series.
1. Precision Kinematics & High-Pressure Hydraulic Clamping
The workpiece rotation axis is equipped with closed-loop Brushless motors, ensuring perfect consistency of the peripheral welding speed. Vessel clamping is managed by a high-pressure hydraulic oil system, guaranteeing concentric alignment of the edges and eliminating vibrations during rotation.
2. EWM Welding Machine, Sensors & LASER Seam Tracking
The system integrates a high-performance EWM welding machine specifically designed for industrial automation. The torch is mounted on a micro-adjustable oscillator system, supported by joint sensors and a LASER tracking system. The LASER beam corrects the torch position in real time, compensating for minimal geometric tolerances of the vessel.
3. Control Electronics & Industry 4.0/5.0 Integration
The control architecture is powered by a latest-generation PLC/NC with an intuitive touchscreen HMI interface. The operator can recall pre-set welding recipes (diameter, thickness, speed, current, pulsing). The integrated network card enables bidirectional interconnection with the customer’s ERP management system for monitoring production KPIs and fulfilling Industry 4.0/5.0 requirements.
4. Automatic Pneumatic Doors & Certified Safety system
Operator safety is guaranteed by painted sheet metal and aluminum protective enclosures equipped with safety filter screens. The compressed air pneumatic system operates the automatic protective doors, allowing work in total acoustic and visual isolation from the electric arc.
The Valentek Competitive Advantage for Your Factory
Applying the Valentek CP 2.0 Full Revamp protocol transforms a faulty mechanical asset into a highly profitable welding cell, delivering 5 immediate operational benefits:
- Up to 45% CAPEX Savings: Recovering only the heavy structural frame slashes the required investment compared to purchasing a brand-new machine, with payback periods reduced to just a few months.
- Continuous Flow at 10 Units/Hour: Engineering the loading/unloading process in masked time allows the operator to prepare or unload the vessel in total safety while the cell welds behind closed doors.
- Consistent “Zero-Defect” Quality: LASER seam tracking and joint sensors correct the torch trajectory in real time, compensating for sheet metal tolerances alongside EWM welding machines and Brushless motors.
- Native Industry 4.0 / 5.0 Integration: PLC management with pre-set welding recipes per part number and bidirectional data interconnection to the ERP system.
- CE-Certified Safety & Ergonomics: Automatic pneumatic doors and perimeter containment barriers isolate the electric arc, protecting the operator from fumes and UV radiation.
Develop Your Automation Project with Valentek
With its proven track record in designing both standard and bespoke solutions, Valentek is the ideal partner to help you innovate your production cycle.