About Us
Founded on its principals' international contracting experience, Sinay Çelik fabricates structural steel and carries out site erection from its two plants in Kartepe, Kocaeli.
We fabricate structural steelwork across 22,000 m² of covered area at our two plants in Kartepe, Kocaeli and erect on site in Türkiye and more than ten other countries. Our references total 34,350 tonnes across factory buildings, hangars, terminals, stadiums and foundries.
- Production capacity
- 1,500 tonnes / month
- Covered area
- 22,000 m²
- Production plants
- 2
- Completed references
- 100+
Our Company
Sinay Çelik was founded to carry the experience its principals gained over many years on international contracting projects into new areas, with the motivation of contributing to the sector and trying approaches that had not been taken before.
With an advanced production infrastructure we operate two separate plants totalling 22,000 m² of covered production area. With a capacity of 1,500 tonnes a month and 18,000 tonnes a year, our plants are in Kocaeli, one of Türkiye's largest industrial cities, just 90 km from Istanbul.
With 34 ports along the Black Sea and Marmara coastline and its industrial waterways, Kocaeli is very well placed for logistics. Shipping heavy and long members becomes a clear advantage in this geography.
Our Service Scope
The steel scope of an industrial facility is delivered under a single contract, from engineering through to site erection.
Structural Steel
Industrial buildings, long-span roof trusses, column and beam systems. From detail engineering to site erection, from a single source.
Learn more 02Plant Maintenance and Repair
We take on the mechanical maintenance and repair of industrial plants in full, shortening downtime.
Learn more 03Piping Systems
Fabrication, welding and erection of process and energy pipelines used in the transmission of natural gas and petroleum products.
Learn more 04Tanks, Silos and Cyclones
Process-specific design and fabrication for the storage of raw materials, intermediates and products in the petrochemical and chemical industries.
Learn more 05Pressure Vessels
Closed vessels operating at 0.5 bar and above; fabrication within the framework of ASME BPVC and PED 2014/68/EU.
Learn more 06Industrial Plant Engineering
Turnkey industrial and storage facilities: civil works, mechanical fabrication and erection, electrical and electronics, and automation.
Learn more 07Metal Blasting and Painting
Industrial blasting, wet painting and fire-protective coating across a 10,000 m² paint shop operation.
Learn moreTwo Production Plants
Two separate plants in Arslanbey OSB, Kartepe, Kocaeli: 22,000 m² of covered area in total, 1,500 tonnes a month and 18,000 tonnes a year.
Plant 1
- Plant area
- 40 m x 75 m (3,000 m²)
- Annual production capacity
- 8,000 tonnes of structural steel
- Overhead cranes
- 4 x 10 tonnes
- Welding machines
- 20 units
- Band saws
- 2 industrial band saws
- Cutting systems
- Laser, plasma and band saw cutting
- Surface preparation
- Blasting and painting
- Quality control
- Dimensional control, coating thickness, weld inspection
Plant 2
- Plant area
- 40 m x 75 m (3,000 m²)
- Annual production capacity
- 12,000 tonnes of structural steel
- Overhead cranes
- 4 x 20 t, 3 x 15 t, 9 x 10 t
- Welding machines
- 78 units
- Band saws
- 2 industrial band saws
- Cutting systems
- Laser, plasma and band saw cutting
- Material handling
- Heavy-duty forklifts and lifting equipment
- Quality control
- Dimensional control, coating thickness, weld inspection
Machine Park
From CNC drilling and plasma cutting to band saws — the principal equipment in the workshop.
Voortman CNC drilling line
High-precision drilling in steel members; several holes in a single pass.
24-metre plasma cutting
Cutting lengths up to 24 metres; high performance on thick plate.
Bomar high-capacity band saw
Minimum material loss and a clean cut face on thick steel sections.
BMSY 800 band saw
Semi-automatic twin-column; 850 mm at 90°, 800 mm at 45°.
Kesmak 350 servo-driven band saw
Ø350 mm at 90°; up to Ø190 mm in bundle cutting.
Our Production Facility
Across 22,000 m² of covered area at our two plants in Kartepe, Kocaeli, every step runs under one roof: from CNC plasma cutting to welded fabrication, from surface preparation to despatch.
How We Work
A documented five-stage process is followed from quotation through to handover.
01
Quotation and survey
Review of the project file, quantity take-off and definition of the erection method.
02
Detail engineering
3D modelling, structural analysis and preparation of shop drawings for approval.
03
Shop fabrication
Cutting, drilling, assembly and welding; production control under EN 1090-2.
04
Surface treatment and painting
Surface preparation, primer and top coat; final inspection before dispatch.
05
Site erection
Crane plan, erection sequence, site welding and completion of the handover file.
Our Principles
Three commitments that do not change from project to project.
Predictable schedule
The fabrication programme follows the erection sequence; every delivery to site carries the pieces to be erected that week.
Documented quality
Under EN 1090 Factory Production Control and EN ISO 3834-2, every fabrication has a traceable file.
A single point of contact
Every stage from engineering to site erection runs under one contract; nothing is lost at the interfaces.
Request a Quote for Your Project
Fabrication drawings, a tonnage list or a preliminary design is enough. We review the scope and respond with a schedule and pricing.