OUR SERVICE

Manufacturing

MIK Projekt develops and manufactures a wide range of industrial components and systems at its production facility in Serbia, using modern CNC technologies and high quality standards.

HOW IT WORKS

From Inquiry to Delivery

Every component follows a defined, documented process — from the first technical exchange to final delivery with a complete quality documentation package.

01

Technical Inquiry

Client submits specifications or request for quotation.

  • Key dimensions, operating pressure, material
  • Applicable standards and lead times
02

Engineering Review & Offer

Requirements review, standards confirmation, material selection, technical offer.

  • Confirmation of applicable standards (EN, PED)
  • Material selection and certificates (EN 10204 3.1)
  • Technical offer with drawing and lead time
03

Production & Quality Control

CNC cutting, bending, welding by certified welders, dimensional inspection at each stage.

  • CNC laser / plasma cutting
  • Welding — certified welders EN ISO 9606-1
  • Dimensional inspection at each phase
04

Testing & Certification

Pressure testing, weld inspection (VT/NDT), material certificates EN 10204 3.1, surface treatment sign-off.

  • Pressure test per project specification
  • Weld inspection (VT / NDT)
  • Material certificates EN 10204 3.1
  • Surface treatment sign-off
05

Delivery & Documentation

Packaged delivery with full quality documentation package.

  • Packaging per transport requirements
  • Complete QC documentation package
  • Declaration of conformity (CE / EN 1090)

Product Range

From our facility we deliver components and assemblies that form part of boiler and energy systems developed to client specifications.

Standalone Supply

Each of the 12 product categories is available as an independent order. We do not sell catalog parts — every component is engineered to your project specification.

As Part of a Complete Boiler Project

All components can be supplied as certified parts of a complete MIK Projekt boiler house — engineered, integrated, and tested as a single system.

  • 01

    Gas Train Assemblies

    Gasna rampa
    Gasna rampa — montažna slika

    Custom-engineered gas train assemblies for industrial burners and boiler systems. Designed and manufactured to burner OEM specifications, integrating all required safety and control components into a single, tested unit ready for installation.

    Scope of Supply

    Manual shutoff valve, filter/strainer, pressure regulator, solenoid valve(s), pressure switch (high/low), test points, flanged connections — assembled and pressure-tested before delivery. Material certificate EN 10204 3.1 included. Primer coat applied as standard.

    Connection Size DN 50 – DN 800
    Design Pressure Up to 4 bar; LP / HP on request
    Applicable Gases Natural gas, LPG, biogas
    Safety Components EN 746-2
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN 746-2, DVGW, CE marking, EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 02

    Liquid Fuel Assemblies

    Sklop tečnog goriva — render
    Sklop tečnog goriva — detalj

    Skid-mounted liquid fuel supply systems for light fuel oil (LFO) and heavy fuel oil (HFO) applications. Each assembly is engineered to the specific fuel type, burner capacity, and site conditions — delivered as a complete, pre-piped and tested unit on a structural steel frame.

    Scope of Supply

    Gear pump set (primary + standby), fuel filter(s), pressure regulation valve, solenoid shutoff valves, pressure gauges, manual isolation valves, structural skid frame, interconnecting pipework. Heating/tracing systems available as separate supply. Material certificates EN 10204 3.1 included. Surface treatment included.

    Fuel Types LFO, HFO
    Pump Type Gear pumps (standard); centrifugal on request
    Configuration Duty / standby standard
    Design Pre-piped, skid-mounted, pressure-tested
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 03

    Finned Tubes

    Orebrena cev
    Orebrena cev — detalj

    Spiral-finned tubes manufactured for heat transfer applications in economizers, air heaters, and waste heat recovery systems. Produced in-house using controlled fin winding processes to ensure consistent fin geometry, bond integrity, and thermal performance across every tube.

    Scope of Supply

    Spiral-finned tubes cut to specified length, fin geometry per project specification, ends prepared for welding or connection. Material certificates EN 10204 3.1 included. Surface treatment included.

    Fin Type Spiral wound
    Base Tube OD 26.9 mm
    Fin Height 12.5 mm
    Materials Carbon steel, stainless steel
    Design Water Temp. Up to 150°C
    Welding EN ISO 9606-1
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 04

    Primary Economizer

    Primarni ekonomajzer
    Primarni ekonomajzer — detalj

    Bare tube bundle economizers integrated directly into the boiler structure, recovering residual heat from flue gases to preheat feedwater before it enters the steam drum or heat exchanger. Engineered as a boiler-integrated component, custom-designed to the boiler's thermal profile and gas-side conditions.

    Scope of Supply

    Bare tube bundle assembly, tube sheet(s), inlet/outlet headers, support framework, flanged connections. Material certificates EN 10204 3.1 included. Surface treatment included.

    Configuration Bare tube bundle, boiler-integrated
    Tube Side Fluid Feedwater / steam
    Shell Side Fluid Flue gas
    Materials Carbon steel (SS on request)
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 05

    Secondary Economizer

    Sekundarni ekonomajzer
    Sekundarni ekonomajzer — detalj

    Finned tube condensing economizers installed downstream of the primary heat recovery stage, extracting latent heat from flue gases for maximum boiler efficiency. Supplied as a standalone external unit, designed for retrofit integration or new system installation.

    Scope of Supply

    Finned tube bundle, condensate drain connection, inlet/outlet headers, casing (insulated), support structure, flanged connections. Material certificates EN 10204 3.1 included. Surface treatment included.

    Configuration External, standalone unit
    Tube Side Fluid Return water / feedwater
    Shell Side Fluid Flue gas (condensing)
    Fin Type Spiral (26.9 mm base, 12.5 mm fin)
    Materials Carbon steel, stainless steel
    Welding EN ISO 9606-1
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 06

    Air Heaters

    Zagrejač vazduha
    Zagrejač vazduha — detalj

    Convective tubular air heaters for combustion air preheating in industrial boiler and burner systems. Designed to recover heat from flue gases and transfer it to incoming combustion air, improving fuel efficiency and reducing operating costs. Engineered to each project's air flow rate, temperature regime, and installation constraints.

    Scope of Supply

    Tubular heat exchange bundle, inlet/outlet air connections, flue gas inlet/outlet connections, support structure, flanged connections. Material certificates EN 10204 3.1 included. Surface treatment included.

    Type Convective, tubular
    Inlet Air Temp. Range -20°C do +50°C
    Materials Carbon steel (SS on request)
    Welding EN ISO 9606-1
    Quality System EN ISO 3834-2
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 07

    Shell-and-Tube Heat Exchangers

    Izmenjivač toplote
    Izmenjivač toplote — detalj

    Custom shell-and-tube heat exchangers for thermal energy transfer between process fluids in industrial heating systems. Engineered to duty specification — covering water-to-water, steam-to-water, and flue gas-to-water applications — and manufactured in-house with full quality documentation.

    Scope of Supply

    Shell, tube bundle, tube sheets, baffles, inlet/outlet nozzles, flanged connections, support saddles. Material certificates EN 10204 3.1 included. Surface treatment included.

    Type Shell and tube
    Duty Water/water, steam/water, flue gas/water
    Materials Carbon steel, SS, or mixed
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 08

    Air and Flue Gas Ducts

    Vazdušni kanal
    Vazdušni kanal — montažna slika

    Fabricated steel ductwork for combustion air supply and flue gas extraction in industrial boiler installations. Manufactured to project-specific geometry and dimensions, with thermal insulation included as standard. Each duct section is produced to ensure airtight assembly and structural integrity under operating pressure conditions.

    Scope of Supply

    Duct sections (rectangular and/or circular), flanged connections, stiffening frames, access doors (where specified), insulation cladding. Material certificates EN 10204 3.1 included. Surface treatment included.

    Geometry Rectangular and circular
    Insulation Included as standard
    Airtightness EN 1507 / EN 12237
    Structural Cert. EN 1090 EXC 3
    Welding EN ISO 9606-1
    Quality System EN ISO 3834-2
    Applicable Standards EN 1507, EN 12237, EN 1090 EXC 3, EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 09

    Flue Gas Lines

    Linija dimnog gasa — render
    Linija dimnog gasa — instalacija

    Fabricated flue gas piping and ducting systems connecting boilers, economizers, and exhaust outlets. Supplied in project-specific diameters and lengths, manufactured from carbon steel or stainless steel depending on flue gas temperature, condensate risk, and site requirements.

    Scope of Supply

    Pipe/duct sections, elbows, transitions, flanged joints, expansion joints (where specified), support brackets. Material certificates EN 10204 3.1 included. Surface treatment included.

    Diameter Range All sizes, to project spec.
    Materials Carbon steel, SS, or combination
    Structural Cert. EN 1090 EXC 3
    Welding EN ISO 9606-1
    Quality System EN ISO 3834-2
    Applicable Standards EN 1090 EXC 3, EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 10

    Access Galleries

    Galerija — pristupne platforme uz kotao
    Galerija — montažna slika

    Structural steel access galleries for industrial boiler rooms and energy facilities — comprising staircase structures, walkways, and access platforms. Manufactured to EN 1090 EXC 3, with surface treatment options including hot-dip galvanizing and industrial paint systems, selected based on service environment.

    Scope of Supply

    Staircase structure, walkway platforms, handrail systems, grating or chequer plate flooring, support columns and brackets, anchor plates. Hot-dip galvanized or painted finish. Material certificates EN 10204 3.1 included.

    Type Staircases and walkway platforms
    Load Class EN 1090 EXC 3
    Surface Treatment Hot-dip galvanized or paint system
    Materials Structural carbon steel
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN 1090 EXC 3, EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 11

    Load-Bearing Structures

    Noseća konstrukcija
    Noseća konstrukcija — detalj
    Noseća konstrukcija — montaža

    Custom structural steel frameworks for boiler support and industrial pipe bridges. Engineered and fabricated to carry static and dynamic loads imposed by boiler bodies, pressure vessels, and process pipework — designed to project structural calculations and manufactured under EN 1090 EXC 3 certification.

    Scope of Supply

    Primary structural steel members, secondary framing, base plates, anchor bolt assemblies, pipe support brackets (where applicable). Surface treatment included. Material certificates EN 10204 3.1 included.

    Type Boiler support frames, pipe bridges
    Load Class EN 1090 EXC 3
    Materials S235 / S355 or to specification
    Surface Treatment Primer + topcoat standard; galvanizing on request
    Welding EN ISO 9606-1 (111, 141, 135)
    Quality System EN ISO 3834-2
    Applicable Standards EN 1090 EXC 3, EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
  • 12

    Probe Housings

    Kućište za sondu
    Kućište za sondu — montažna slika

    Fabricated steel housings for industrial measurement probes — including oxygen sensors, temperature sensors, and pressure instruments — used in boiler flue gas monitoring and combustion control systems. Manufactured to exact probe interface specifications with appropriate connection standards for each application.

    Scope of Supply

    Housing body, flanged or threaded probe connection (to probe manufacturer spec), weld-in nozzle for duct/boiler wall installation, cover/protection plate where required. Material certificates EN 10204 3.1 included. Surface treatment included.

    Compatible Probe Types O₂, thermocouple/RTD, pressure
    Connection Types Flanged DN 50–DN 200, threaded
    Materials Carbon steel or SS — per flue gas conditions
    Welding EN ISO 9606-1
    Quality System EN ISO 3834-2
    Applicable Standards EN ISO 9606-1, EN ISO 3834-2
    Discuss Your Requirements →
CERTIFICATIONS & QUALITY STANDARDS

Certifications & Quality Standards

Our manufacturing is certified to European standards required or expected on industrial markets across the EU and beyond.

EN ISO 3834-2 WELDING QUALITY

Comprehensive Welding Quality Requirements

MIK Projekt holds EN ISO 3834-2 certification — the highest level of welding quality assurance for fusion welding of metallic materials. This standard governs our entire welding lifecycle: procedure qualification, welder competence, production planning, inspection, and documentation. Required for boiler and pressure equipment manufacturers supplying EU markets.

EN 1090 EXC 3 STRUCTURAL STEEL

Structural Steel Execution Class 3 — CE Marking

Our structural steel components carry CE marking under EN 1090 Execution Class 3 — the compliance level required for structural components in safety-critical industrial applications. This certification enables legal supply of structural elements to EU construction projects and confirms our factory production control system meets third-party audit requirements.

EN ISO 9606-1 WELDER QUALIFICATION

Welder Qualification Certification

Our welders are individually qualified under EN ISO 9606-1 across five welding processes:

  • 111 Manual metal arc (electrode) welding
  • 141 TIG welding
  • 135 MAG welding
  • 111/141 Combined electrode/TIG
  • 135/141 Combined MAG/TIG

This qualification range covers the full spectrum of welding processes used in boiler manufacturing, pressure piping, and structural steel fabrication.

Manufacturing Technology

Modern equipment and certified processes that guarantee precision and quality at every stage of production.

CNC Cutting

Precise laser and plasma cutting of metal components to technical specifications with dimensional accuracy.

Precision Metal Bending

Programmable bending of sheets and tubes for complex geometries in pipelines, ducts and structural elements.

Industrial Welding

Certified welders and welding techniques to international standards for high-pressure vessels and boiler systems.

Quality Control

Systematic inspection of dimensions, weld joints and surface treatments before delivery of every element.

STANDARDS & QUALITY

Standards and Quality

Our quality management system and technical certifications cover every stage of production — from material procurement and welding procedures to final inspection and documentation.

ISO 9001:2015 QUALITY MANAGEMENT

Quality Management System

MIK Projekt is certified to ISO 9001:2015 — the international standard for quality management systems. Certification covers the complete scope of our operations: engineering and design, manufacturing, installation, and after-sales service of thermal energy systems and boiler components. Every process from supplier qualification to customer delivery operates within our documented quality system.

Applicable Standards by Domain

Welding
  • EN ISO 3834-2Welding quality requirements
  • EN ISO 9606-1Welder qualification
  • EN ISO 15614-1Welding procedure qualification
Structural Steel
  • EN 1090-1/-2Execution of steel structures
  • EN 10025Hot-rolled structural steel
  • CE MarkingEU conformity declaration
Pressure Equipment
  • PED 2014/68/EUPressure equipment directive
  • EN 13480Metallic industrial piping
  • AD 2000German pressure vessel code
Materials
  • EN 10204 3.1/3.2Material inspection certificates
  • EN 10216Seamless steel tubes
  • EN 10217Welded steel tubes
Meeting Global Requirements

Our processes are aligned with ASME, EN and DIN standards, enabling delivery to EU and international markets.

Continuous Expansion

We are expanding our facility and adding new CNC lines to increase throughput for more complex assemblies.

Strategic Location

Our facility in Noćaj provides short lead times for regional projects and direct access to European transport corridors.

Work with MIK Projekt

Contact us with your technical specifications — we will assess how our facility can support your project.

Contact Us