Since 1982

Shaping the Future
of Metalworking

Reference partners in highly demanding sectors, from nuclear to offshore, from shipbuilding to renewable energies.

+45 Years of Experience

+260 Team Members

6,000 m² Productive Area

+10 Countries

Who We Are

About Us

At Lopes & Caldas, we use metalworking to help shape the future. We are an experienced partner that makes welding the core of its operations but develops technical and methodological concepts capable of adding value in more complex electromechanical supply challenges, both onshore and offshore, actively contributing to the success of our clients' projects.

We combine ambition, determination, and hands-on experience in both our workshops and construction or assembly sites to ensure excellence at every stage of a project.

With active projects in various regions, such as Portugal, France, and the Netherlands, we are proud to run an operation with more than 220 specialized employees. In Viana do Castelo, Portugal, we have two modern industrial buildings totaling 6,000 m² of factory area, and at the European level, we have a network of partners that allows us to quickly respond to any challenge.

Gathering complete technical, human, and infrastructural capacity to estimate, manage, and deliver complex projects with absolute precision.

João Caldas - CEO

Industrial Capacity

Industrial Capacity & Main Equipment

We have a modern, high-tech infrastructure with the capacity to respond to the most demanding and large-scale projects. Our facilities are fully prepared for Industry 4.0 and strategically located with privileged logistical access to the seaport and highways.

Infrastructure & Logistics

Industrial Pavilions 1 & 2

Covered Capacity 6,000 m² of Production Area

Our two industrial facilities are strategically located to guarantee unparalleled logistical flow, with direct access to maritime and road transport channels.

Technical Data

Manufacturing Units	Pavilion 1 (HQ) & Pavilion 2
Pavilion 1 Area	4.500 m² (Zona Industrial do Neiva - Viana do Castelo)
Pavilion 2 Area	1.500 m² (Avenida Cabo Verde - Viana do Castelo)
Logistical Access	Direct access to shipyards and commercial/maritime port
Operational Technology	Units prepared for integrated Industry 4.0 workflows

Area Distribution

P1: 1,500 m²

P2: 4,500 m²

Handling & Logistics

Heavy-Duty Overhead Cranes

Maximum Unit Load 40 Tons

With a comprehensive fleet of 7 overhead cranes distributed across the pavilions, we can ensure the safe handling and assembly of large-scale heavy structures.

Technical Data

Total Fleet	7 Overhead Cranes
Pavilion 1 Distribution	1 × 10 t Crane + 1 × 20 t Crane + 2 × 40 t Cranes
Pavilion 2 Distribution	2 × 6.3 t Cranes + 1 × 10 t Crane + 1 × 3.2 t Crane

Load Limit Viewer

Cranes Pavilion 2 40 Tons

Main Crane Pavilion 2 20 Tons

CNC Thermal Cutting

20 kW Plate Laser Cutter

Working Area 16,000 × 3,000 mm

Giant-format robotic table ideal for clean, high-precision cutting of carbon steel, stainless steel, and special alloy plates and sheets.

Technical Data

Source Power	20,000 W (20 kW) Fiber Laser
Useful Table Dimensions	16,000 mm (Length) × 3,000 mm (Width)
Maximum Cutting Thickness	40 mm
Positional Accuracy	±0.05 mm
Execution Quality	Clean, dross-free cut edges, eliminating post-processing

Thickness Capacities by Material

Carbon Steel (Max. Thickness) 40 mm

Stainless Steel (Max. Thickness) 30 mm

CNC Thermal Cutting

3 kW Profile Laser Cutter

Processing Diameter Up to Ø 254 mm

Robotic technology for continuous three-dimensional cutting and machining on round, square, rectangular tubes, I/H beams, and special profiles.

Technical Data

Source Power	3,000 W (3 kW) Fiber Laser
Max. Allowed Diameter	Ø 254 mm (Round, square, rectangular sections)
Input Length	Up to 12,000 mm (Automatic feeder)
Motion & Head	Dynamic 3D rotary chuck for bevel cuts and drilling
Profile Types	Tubes, IPE/HEB Beams, Angles, UPN Profiles

Dimensional Limits

Maximum Bar Length 12,000 mm

Maximum Round Section Ø 254 mm

Profile Machining

Large-Scale CNC Profiles

Processing Width Up to 800 mm

Large-format CNC machining and sawing center designed for processing heavy profiles and structural beams of large envergure.

Technical Data

Max. Allowed Width	800 mm
Combined Functions	Mechanical angular cutting and 3-axis drilling
Control System	CNC with direct file import
Drilling Precision	±0.1 mm

Dimensional Capacity vs Standard

Maximum Profile Capacity 800 mm

Mechanical Cutting

Mechanical Profile Cutting

Active Fleet 4 Band Saws up to 900 mm

Cutting equipment for all types of carbon steel profiles.

Technical Data

Machine Quantity	4 Band Saws
Max. Useful Capacity	Cross cut up to 900 mm width
Bevel Cutting	-60° to +60°
Process Advantage	Processing without thermal input, keeping steel properties intact

Bevel Mitre (Angles)

Maximum Cutting Angle 60°

Sheet Metal Forming

CNC 4-Roll Plate Bending Machine

Maximum Dimensions 3,100 mm × 40 mm

Precision bending and rolling for the production of shells, pressure vessels, cones, and large-diameter steel piping.

Technical Data

Bending Type	4-roll geometry with hydraulic drive
Useful Plate Width	Up to 3,100 mm
Max. Bending Thickness	40 mm

Bending Length

Bending Length 3,100 mm

Maximum Plate Thickness 40 mm

Sheet Metal Forming

200T CNC Press Brake

Bending Force 200 Tons

Multi-axis CNC press brake for exact bending of parts and profiles with active deflection compensation.

Technical Data

Pressing Force	200 Metric Tons
Useful Length	3,050 mm
Controlled Axes	X, Y1, Y2, R axes with active electronic synchronization
Operation Precision	±0.03 mm

Bending Indicators

Max. Working Force 200 Tons

Maximum Bending Length 3,050 mm

Automated Welding

Welding Column

Useful Reach 6,000 × 6,000 mm

Integrated robotic spindle and submerged arc system for homogeneous circular and longitudinal welds of very high mechanical requirements.

Technical Data

Operational Reach	6,000 mm (Vertical) × 6,000 mm (Horizontal)
Welding Speed	Up to 2 m/min

Three-Dimensional Reach

Boom (Horizontal Reach) 6,000 mm

Column (Vertical Stroke) 6,000 mm

Mechanical Cutting

Hydraulic Guillotine

Maximum Capacity 3,200 mm × 13 mm

Equipment for precise cutting of steel plates using a hydraulic guillotine shear.

Technical Data

Cutting Length	3,200 mm
Cutting Capacity (Thickness)	13 mm

Cutting Capacity

Maximum Length 3,200 mm

Maximum Thickness 13 mm

Recognition

Certifications

NP EN ISO 9001

Quality Management System

International certification that attests to the rigor of our quality management processes in all phases of production and delivery.

EN 1090-2 EXC.4

Execution of Steel Structures

European certification of execution level 4 for steel structures, ensuring legal compliance with the most demanding technical and structural safety requirements.

EN ISO 3834-2

Quality in Fusion Welding

Guarantees technical compliance, quality, and precision of our welding processes in high-responsibility boilermaking and industrial structures.

Identity

Mission and Vision

Mission

To be a reference in engineering and metalworking construction, offering integrated and innovative solutions that ensure quality, rigour, safety and sustainability. We are committed to exceeding the expectations of our clients, employees and partners, contributing to success and development in the energy, industry, civil and naval construction sectors.

Vision

To be a European reference in high-complexity metalworking, recognised for technical expertise, uncompromising quality and the ability to execute demanding projects with efficiency, innovation and profitability.

Our Values

Technical Excellence

Striving for perfection in everything we do.

Commitment

Full dedication to our values, the quality of our projects and client satisfaction, with a focus on collective success and meeting established goals.

Innovation

Promoting continuous transformation through new ideas, technologies and processes that add value and drive the company's evolution.

Specialisation

Deep mastery of our areas of expertise, offering highly qualified and tailored solutions to meet our clients' complex needs.

Human Appreciation

Investment in developing our team's skills and promoting an inclusive and collaborative environment.

Responsibility

Acting with integrity, ethics and commitment in all relationships and decisions.

Sustainability

Responsible development, with resource efficiency, lower environmental impact and creation of lasting value for society and future generations.

Safety

Ensuring safe working environments, preventing risks and protecting people and assets.

Identity

Culture

At Lopes & Caldas, we cultivate a culture of high performance, collaboration and continuous innovation. We value technical specialisation and believe that success is achieved through teamwork, individual responsibility and commitment to results. Our way of working is guided by excellence, the relentless pursuit of quality and the ability to exceed the expectations of our clients and partners.

We promote a culture of safety and sustainability, with practices that minimise environmental impacts and ensure the well-being of all employees. We believe that human appreciation is essential for the company's growth, investing in the constant development of skills and the creation of an inclusive and collaborative environment.

Transparency, ethics and innovation are the foundation of our internal and external interactions. With a growth mindset, we face challenges with agility and creativity, and we work together to achieve our goals and thus become a reference in the metalworking construction sector.

Evolution & Internationalization