Marine Cast Iron Counterweights, Subsea Clump Weights & Cable Protection Weights
Corrosion-resistant ballast for offshore, subsea and renewable energy systems
Exxelmet supplies marine cast iron counterweights, subsea clump weights, and cable protection weights for offshore and renewable projects. Our ISO-certified foundries deliver repeatable quality, with epoxy/PU coating systems for long salt-spray life and DDP delivery across EU & UK to simplify procurement and customs. Typical applications include subsea cable protection, mooring/anchoring, buoyancy control and equipment stabilization.
Partner with Exxelmet for marine cast iron counterweights, subsea clump weights and cable protection weights.
Get specifications, lead times and DDP EU/UK delivery aligned to your project.
Email us on contact@exxelmet.com
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Function: ballast and stabilization in marine/subsea environments (mooring lines, ROVs, deck equipment, cable protection).
Unit weights: 20 - 5000 kg standard; heavier by modular stacks or to spec.
Forms: blocks/slabs with handling slots or lifting eyes per design.
As-cast or CNC-machined interfaces; chamfers/fillets to drawing.
Finishes: primer only, epoxy/PU marine paint, or zinc-rich systems.
Marking: cast-in or stamped IDs; OEM color and branding.
Supply as loose blocks or framed assemblies for rapid install.
Materials: EN-GJL-150/200 (EN 1561), EN-GJS-400+ (EN 1563), ASTM A48/A536.
Please refer to equivalent Cast Iron Grades
Casting tolerances: ISO 8062-3 CT8–CT10 (as-cast), CT6 (machined).
Surface finish: as-cast Ra 12.5–25 μm; machined ≤3.2 μm.
Coatings: epoxy/PU multi-coat; DFT to project requirement (e.g., 200–320 μm).
Inspection: dimensional, hardness, coating DFT, salt-spray where specified.
Green-sand and resin-bonded molds for medium/large weights; pattern tooling built in-house.
Fabricated steel frames and brackets for mounting/stacking.
Forged lifting inserts/eyes, machined and integrated under WPS/PQR.
Full CNC machining for interfaces, bores and lifting slots.
Export-grade palletization, edge protectors, VCI/anti-rust wraps.
Mixed-load containers available; DDP EU & UK for frictionless delivery.
Incoterms: EXW/FOB/CIF/DDP as required; photo-packout records.
Offshore wind: clump weights and platform ballast.
Subsea: cable protection/lay, ROV/AUV ballast, buoyancy tuning.
Ports & marine handling: winch/crane/stability weights.
Hydro & tidal: anchoring and structure stabilization.
ISO 9001 & ISO 14001 systems; MTCs and inspection reports.
Material and coating traceability; CE where applicable.
Equivalent grade cross-references provided for ASTM/ISO/DIN.
Standard patterns: typically 4–6 weeks to ship; New tooling per complexity.
Please refer to our pricing guidance:
International Customers: Price in USD
Domestic Customers: Price in INR
95–98% recyclable iron content
Long service life vs. concrete
Low field maintenance.
