Certification and Quality

Quality is a core value and commitment for us. We ensure that our products meet the highest technical and quality standards. Since 2008, we have operated a quality management system in accordance with EN ISO 9001, which we continuously develop and adapt to current requirements.

Our goal is to be a reliable partner delivering on time and at the required quality level. Every employee shares responsibility for quality and its continuous improvement – from design to final inspection.

Quality and Certification in Engineering | ZAKO

Rely on a partner who delivers on time and at the required quality.

Quality control

Quality control is a key priority in our company. Customer requirements are ensured by a team of experienced inspectors independent of production. In addition to standard measuring tools, we use advanced 3D coordinate measuring machines from Hexagon and Aberlink, as well as Romer measuring arms.

We verify weld quality using magnetic particle testing (MT), penetrant testing (PT), and visual testing (VT). We also inspect surface treatments, including the measurement of coating thickness, integrity, and gloss. Providing measurement reports upon customer request is standard practice for us.

 
Quality control / M70_4759

Product quality is ensured by:

  1. Incoming inspection
  2. In-process inspection
  3. Final inspection

Upon customer request, we provide:

Certificate
of conformity WB 2.1
Measurement
reports
Inspection
certificates 3.1
(verification of input
material quality)

Quality is ensured using advanced 3D measuring equipment:

  • CMM - DEA Alpha Performance - travels (X-Y-Z) - 2,000 x 5,000 x 1,500 mm - 1 unit
  • CMM - DEA Global Performance - travels (X-Y-Z) - 1,200 x 2,200 x 1,000 mm - 1 unit
  • CMM - DEA Global - travels (X-Y-Z) - 700 x 1,000 x 700 mm - 2 units
  • CMM - Zenith Too - travels (X-Y-Z) - 1,000 x 1,500 x 600 mm - 1 unit
  • Romer Arm RA-7535 - measuring range - 3,500 mm - 2 units
  • Scanners - 3 units
  • Weld testing

Quality management is ensured by a team of qualified inspectors.

Overview of Certifications

The quality of our processes is verified by international certifications:

EN ISO 9001

quality management system

EN ISO 3834-2

welding quality management system

EN 15085–2 CL1

welding of railway vehicles

DIN 2303 Q2

welding of products for the defence industry

Our experience and certifications enable us to supply products for rail vehicles, the defence industry, material handling, the food and pharmaceutical industry, machinery and equipment manufacturing, and the energy industry.

Quality control and industry standards

To maintain the highest level of product quality, we apply a consistent quality control system throughout the entire production process. Each project undergoes thorough final inspection to ensure full compliance with drawings and customer specifications. Quality supervision also includes monitoring critical parameters during machining and welding processes – allowing us to detect and correct any deviations in time.

Expertise and experience

Every project is carried out with maximum care and expertise. Thanks to our experience and specialization, we are able to cooperate with leading industrial companies. Our deep industry knowledge, individual approach, and strong focus on quality enable us to deliver solutions that perform even under the most demanding conditions of modern industry.

Quality tools and processes we use

3D measurement and precision inspection

Finished components and assemblies are inspected using high-precision coordinate measuring machines (CMM). Weld quality is verified using magnetic particle testing, penetrant testing, and visual testing. We inspect all dimensions, geometry, and surface integrity according to the tolerance requirements specified in the drawings. In addition, we use calibrated analogue measuring instruments such as micrometers, calipers, and surface roughness testers for continuous inspection during production.

Quality system based on international standards

Our quality management system is based on EN ISO 9001 and is continuously improved. This enables us to reliably supply components to customers in highly regulated sectors while maintaining all required quality and safety standards.

Complete documentation and traceability

Upon customer request, we can maintain detailed documentation for the relevant project, including material certificates, measurement reports, and production records. This ensures full traceability – allowing each component to be traced back to its material batch and production operation.

Focus on deadlines and reliable delivery

We understand that reliability is essential in the B2B sector. Therefore, we place strong emphasis on meeting agreed delivery deadlines. Our production planning is flexible and efficient – allowing us to respond quickly to changes in demand or customer priorities. The result is a high level of on-time delivery and long-term trust from our business partners.
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