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factory Manufacturing Infrastructure

Our Production Base &
Modern Infrastructure

Gökrail unifies heavy industry manufacturing processes under a single roof in its integrated facilities spanning 70,000 m² of enclosed space.

End-to-End Manufacturing Line

The chronological flow of all engineering stations in our factory, from raw material entry to the finished wagon rolling onto international tracks.

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01 — Receiving & Quality Control

Material Receiving, Quality Approval & Smart Storage

Raw materials and steel profiles arriving at our facilities are first subjected to compliance tests against technical specifications by our Receiving Quality Control department. Approved materials are barcoded in our smart storage systems and made ready for production in raw material halls.

  • verified Full metallurgical verification during receiving quality control processes
  • verified Raw material traceability via ERP-integrated barcoding system
Material Receiving, Quality Approval & Smart Storage
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02 — Preparation for Production

Material Preparation & Modular Internal Logistics

Stored steel plates undergo material preparation by being processed with millimeter precision on CNC laser and plasma cutting machines. All prepared components are scanned and dispatched via internal fleet lines to dedicated halls for wagon body chassis or bogie assembly according to the production routing.

  • verified High precision in CNC laser cutting and bending stations
  • verified Optimized asymmetric internal logistics lines for wagon bodies and bogie frames
Material Preparation & Modular Internal Logistics
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03 — Structural Assurance

Welded Fabrication & NDT Quality Inspection

Chassis assembled by robotic and manual welding lines in dedicated halls are transferred to our NDT (Non-Destructive Testing) unit. Our expert quality control engineers inspect all weld seams, burrs, and assembly traces at a micro level, guaranteeing 100% structural integrity.

  • verified Magnetic Particle (MT) and Ultrasonic (UT) weld seam penetration testing
  • verified Flawless deburring and surface cleaning to EN 15085-2 railway welding standards
Welded Fabrication & NDT Quality Inspection
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04 — Corrosion Shield

Surface Blasting, Industrial Priming & Baking

Steel structures approved by NDT enter giant shot-blasting chambers for metal surface preparation to ensure paint adhesion and corrosion resistance. Immediately after, primer paint is applied by robotic systems in climate-controlled cabins and left to cure in baking units.

  • verified Anti-corrosion coating and micron thickness control to TSI standards
  • verified Accelerated curing with enhanced durability in automatically controlled baking chambers
Surface Blasting, Industrial Priming & Baking
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05 — Final Assembly Line

Accessory Outfitting & Mechanical Bogie Mating

Buffers, draw gear packages, pneumatic hoses, and all other wagon accessories are mounted on the body out of the oven. Once outfitted, the massive main chassis is lifted by high-capacity overhead cranes and mated with millimeter accuracy onto the running gear (bogie) systems waiting below.

  • verified Pneumatic system and buffer mounting fully compliant with UIC and TSI standards
  • verified Smooth chassis-bogie mating with heavy-duty smart crane bridges
Accessory Outfitting & Mechanical Bogie Mating
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06 — Logistics Ready

Final Inspection, Dynamic Brake Testing & Dispatch

Fully assembled wagons are moved to the final test station where static and dynamic brake testing, leakage checks, and overall functional tests are conducted. Wagons successfully passing all test protocols and receiving certification are dispatched for delivery onto global rail logistics networks.

  • verified Pressurized pneumatic brake tests according to international railway standards
  • verified Official delivery and dispatch approved under TSI (Technical Specifications for Interoperability)
Final Inspection, Dynamic Brake Testing & Dispatch

Our Office & Factory

Our official offices and factories, built with state-of-the-art technology, form the geographic pillars of Gökrail's manufacturing quality.

HEAD OFFICE

HEAD OFFICE

location_on Istanbul, Turkiye

Bahar Cd. Nurolpark Sitesi J Blok Kat:16 No:162, 15 Temmuz Mahallesi, Bağcılar – İstanbul

SİVAS FACTORY

SİVAS FACTORY

location_on Doganca, Sivas

Doğanca Köyü OSB Mevkii 3 Sk. No:4/1 Merkez / Sivas