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CONCRETE TETRAPOD MANUFACTURING FOR BREAKWATER AND PORT FILL PROJECTS
Tetrapods are specially shaped concrete units used to dissipate wave energy and protect coastal structures.
NG Attachments manufactures tetrapods in the 5–25 tons range using high-strength C40–C50 concrete, stable steel moulds, and controlled vibration compaction—fully aligned with project specifications.
Made in Türkiye. Manufactured to European quality standards with fast production and delivery.
The image shows high-strength C40–C50 class concrete tetrapods by NG Attachments for breakwater protection and port fill applications.
KEY ADVANTAGES
- Reduces wave run-up and backwash; minimizes shoreline erosion.
- Interlocking geometry enables stable, stackable armor layers.
- Long service life with marine-grade, high-strength concrete.
- Optimized unit weight/size per design wave and seabed conditions.
- Fast on-site handling with crane or conveyor; efficient placement plans.
APPLICATIONS
Breakwaters and revetments, port and marina protection, coastal defense, erosion control, and outer armor layers of reclamation fills.
TECHNICAL OPTIONS (TYPICAL)
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| MODEL | NOMINAL WEIGHT (t) | APPROX. HEIGHT H (mm) | TIP-TO-TIP (mm) | CONCRETE VOLUME ~ (m³) | CONCRETE CLASS | NOTE |
|---|
| NG-TPD-05 | 5 | 2000–2200 | 2400–2600 | ~2.0 | C40–C50 | General shoreline works |
| NG-TPD-10 | 10 | 2600–2800 | 3100–3300 | ~4.0 | C40–C50 | Port outer armor |
| NG-TPD-15 | 15 | 3000–3200 | 3600–3800 | ~6.0 | C40–C50 | Higher design wave |
| NG-TPD-20 | 20 | 3300–3500 | 4000–4200 | ~8.0 | C40–C50 | Primary breakwater |
| NG-TPD-25 | 25 | 3600–3800 | 4300–4500 | ~10.0 | C40–C50 | Harsh sea states |
*Dimensions and volumes are indicative. Final sizing depends on hydrodynamic design (design wave height, period, currents, seabed, etc.) and project specifications.
HYDRODYNAMIC SELECTION GUIDE – PROJECT PARAMETERS AFFECTING TETRAPOD SIZING
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| PARAMETER | DESCRIPTION | TYPICAL RANGE | PROJECT IMPACT |
|---|
| Design Wave Height (Hs) | Significant/maximum wave height | 2–8 m | Primary driver for unit weight |
| Peak Wave Period (Tp) | Wave period | 6–14 s | Affects armor porosity/layout |
| Water Depth / Bathymetry | Toe elevation and slope geometry | Project-specific | Determines slope and layer count |
| Seawater Density (γ) | Water density | ≈1.025 t/m³ | Used in stability equations |
| Placement Coefficient (nₛ) | Armor packing/void ratio | 1.5–2.5 | Impacts quantity of units |
| Safety Factor (Kₛ) | Design margin | 1.2–1.5 | Durability and service life |
| Seabed Condition | Rock / compact fill / loose soil | Project-specific | Affects foundation and placement |
With these inputs, NG Attachments helps determine the optimal tetrapod unit weight and production volume for your site.
Upon request, we can provide a summary stability note and recommended placement layout.
PRODUCTION & QUALITY STANDARDS
- Rigid steel moulds and high-frequency vibration compaction.
- Compliance with TS EN and international coastal/port engineering practices.
- Cube/beam tests, curing control, and surface inspection records.
- Optional logo embossing, labeling, and batch traceability.
HOW ARE TETRAPOD PRICES DETERMINED?
Unit weight/size, concrete class, mould count, production quantity, and job-site logistics (cranes, transport, stacking) shape the total cost.
We quote based on project drawings and design wave parameters.
FAQ
What is a tetrapod and why is it used?
A tetrapod is a specially shaped concrete unit that dissipates wave energy and protects coastal structures such as breakwaters and revetments.
Which concrete class is used?
Marine-grade high-strength concrete, typically C40–C50, selected based on environmental exposure and curing requirements.
How is the unit weight selected?
By hydrodynamic design considering Hs, Tp, water depth, and seabed conditions. We manufacture in the 5–25 tons range.
What is the lead time?
Depends on mould count, quantity, and site logistics. Multi-mould and shift planning enable fast series production.
Nur Group Mühendislik is the manufacturer and NG Attachments is our global brand.
Our production follows international welding and QA standards; handling/placement is executed precisely according to technical drawings.
