Tuzla & Yalova Drydock Technical Supply: Complete Marine Procurement Guide

Commercial drydocking in the **Tuzla Shipyard Zone (Istanbul)** and the **Yalova Altinova Shipyard Region** represents a high-stakes, time-critical operational phase where every off-hire hour directly impacts profitability ($20,000 - $60,000 daily off-hire demurrage). Having a dedicated, digitally-enabled technical ship chandler on-site ensures smooth execution of scheduled maintenance and emergency repair jobs. --- ### 1. Pre-Docking Supply Requisition Timeline | Timeline | Milestone | Key Actions & IMPA Group Requisitions | | :--- | :--- | :--- | | **D - 14 Days** | Preliminary RFQ Submission | Submit full deck, engine, electrical, and safety store lists (Excel/PDF) to **Tuzla Supply**. | | **D - 7 Days** | Quotation & Stock Allocation | Finalize purchase orders, allocate warehouse inventory in Tuzla, and clear air-freight transit spares. | | **D - 1 Day** | Logistics & Security Clearance | Coordinate shipyard gate passes, customs declarations, and bonded delivery truck schedules. | | **D - Day (Docking)** | Initial Deck & Safety Supply | Direct dockside crane delivery of high-tensile mooring tails (IMPA 21), blast hoses, and safety gear. | | **D + 1 to D + 5** | Mechanical Overhaul Supply | Deliver JIS/DIN valves (IMPA 79), gasket sheets (IMPA 53), MAN B&W/Wärtsilä spares, and Jotun paints. | --- ### 2. Core Material Categories for Drydock Repairs #### A. Deck, Rigging & Mooring Equipment (IMPA 21 / 23 / 61) - High-performance 8-strand and 12-strand polypropylene / HMPE mooring lines. - Galvanized steel wire ropes (6x36 WS IWRC) with tensile strength 1960 N/mm² and Lloyd's test certificates. - Heavy-duty forged alloy steel D-shackles and bow shackles (Grade 80 / Grade 100). #### B. Engine Room Overhaul & Piping Hardware (IMPA 53 / 71 / 79) - Spiral wound gaskets (SS316 with graphite filler) for high-pressure steam and exhaust gas manifolds. - High-tensile fasteners (Grade 8.8 and 10.9 hex bolts) and marine-grade A4-80 stainless steel studs. - Marine valves (JIS 5K/10K bronze and cast iron globe/gate/storm valves). #### C. SOLAS & MARPOL Recertification Stores (IMPA 33) - MED-certified lifejacket lights, immersion suits, EEBD emergency escape breathing units, and hydrostatic release units (HRUs). --- ### 3. Dedicated Bonded Logistics: Tuzla to Yalova via Osmangazi Corridor - **Tuzla Shipyard Hub**: Evliya Çelebi Mah. central warehouse positioned 5 minutes from Sedef, Gemak, Kuzey Star, Tuzla Shipyard, and Desan floating docks. - **Yalova Altinova Express Route**: Direct transit across the Osmangazi Bridge enabling **30-minute delivery** to Tersan, Sanmar, Sefine, Cemre, and Hat-San shipyards. --- ### 4. Frequently Asked Questions (FAQ) **Q1: How does Tuzla Supply handle imported air-freight spare parts arriving at Istanbul Airport (IST/SAW)?** *A: Under Turkish Customs Article 176 transit regime, our licensed customs brokers collect your air-freighted packages directly from airport customs and transfer them under customs seal straight to your vessel's drydock berth.* **Q2: Can we submit requisition lists in our internal ship management format (e.g., Amos, DNV ShipManager, BASSnet)?** *A: Yes! Our Navis AI procurement platform instantly parses requisitions from Amos, ShipManager, Excel, or scanned PDFs into standardized 6-digit IMPA codes and generates official quotations within 15 minutes.*