Counterweight Iron Sand & High-Density Ballast
High-specific-gravity metallic ballast aggregate refined from dense ferro-minerals and cast iron granulates. Delivers packed bulk densities of 4.2 to 5.2 g/cm³—nearly double standard concrete—reducing counterweight volume and lowering center of gravity in heavy machinery.
Direct Gongyi Plant Processing & Sizing Precision
Every batch of Counterweight Iron Sand & High-Density Ballast is refined, crushed, magnetically separated, and precision-screened in our 35,000 m² Gongyi facility—eliminating middleman quality variation and ensuring strict adherence to international industrial standards.
Strict Raw Material Selection & Thermal Processing
Processed from selected high-grade raw ore under tightly monitored kiln/furnace temperature profiles to guarantee consistent chemical purity, specific gravity, and mechanical durability across every 20' FCL load.
Narrow Particle Size Distribution & Zero Oversize Contamination
High-frequency vibrating screens and air classification lines remove dust and oversize particles, ensuring uniform packing density and predictable industrial performance.
In-House XRF Assay & Signed COA with Every Shipment
Tested in our ISO 9001:2015 metrology lab for chemical composition, moisture, bulk density, and sieve retention prior to container sealing.
Chemical & Grading Technical Datasheet
Tested in our Gongyi plant laboratory prior to shipment. Every export container includes a batch-specific Certificate of Analysis (COA).
| Grade Designation | Total Fe (%) | Loose Bulk Density | Packed / Vibrated Density | True Gravity | Particle Size Range | Primary Application |
|---|---|---|---|---|---|---|
| CIS-50 Ultra-High Density Shot/Grit | 92.0% – 96.0% | 4.5 – 4.8 g/cm³ | 4.9 – 5.2 g/cm³ | 6.8 – 7.2 g/cm³ | 0.5 – 2.5 mm | Excavator & Crane Steel Box Fill |
| CIS-44 Heavy Concrete Aggregate | 88.0% – 92.0% | 4.0 – 4.4 g/cm³ | 4.4 – 4.8 g/cm³ | 6.2 – 6.6 g/cm³ | 1.0 – 3.0 mm / 2.0 – 5.0 mm | High-Density Concrete & Shielding |
| CIS-38 Mineral Ballast Sand | 65.0% – 75.0% | 2.8 – 3.2 g/cm³ | 3.3 – 3.8 g/cm³ | 4.8 – 5.2 g/cm³ | 0.5 – 3.0 mm | Marine Ballast & Bridge Counterweights |
Standard Seaport Export Staging
- 25kg Bags + Pallet: 40 × 25kg multi-ply moisture-proof bags shrink-wrapped on a 1,000kg ISPM-15 fumigated wooden pallet.
- 1,000kg Jumbo Bags: Heavy-duty woven PP FIBC bulk bags with top/bottom spouts and PE moisture liner.
- Container Capacity: 20 – 26 Metric Tons per 20' GP container.
- Port of Loading: Qingdao / Tianjin / Shanghai (7–10 days dispatch).
Primary Industrial Sectors & Use Cases
Engineered for reliable performance across heavy industrial manufacturing, surface preparation, and thermal processing.
Construction & Port Crane Counterweights
Loose fill or heavy concrete mix for excavators, tower cranes, forklifts, and port gantry counterweights.
Marine & Offshore Ballasting
Permanent high-density ballast for ship hulls, floating wind turbine platforms, and offshore barges.
Nuclear & Medical Radiation Shielding
Heavy aggregate for high-density concrete walls (3.8–4.8 t/m³) in nuclear power plants and hospital radiotherapy vaults.
Elevator & Gym Balance Blocks
Compact high-mass casting filler for elevator counterweights and commercial fitness equipment.
Frequently Asked Questions
Key technical parameters, grit sizing standards, and export logistics for Counterweight Iron Sand.
Can you customize particle sizes according to our technical requirements?
Yes. Gongyi Fengtai possesses automated multi-deck sieving lines and air classification systems capable of screening custom mesh sizes, FEPA, JIS, ANSI, or proprietary buyer grain distributions.
How can I request free testing samples?
Simply fill out the inquiry form below or message our sales team on WhatsApp (+86-158-3803-2047). We arrange 1kg to 2kg trial samples dispatched worldwide via DHL/FedEx.
What are your export shipping terms and accepted payment methods?
We offer FOB Qingdao/Tianjin, CIF, CFR, and DDP shipping terms. Accepted payment methods include T/T (Telegraphic Transfer) and irrevocable Letter of Credit (L/C) at sight.
Request Quote & Free Samples
Submit your required specs. Our technical sales engineers respond within 4 hours during business days.