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NMFC 4587 - Foundry Sand Additives in Bags | Class 50

Article ID
4587
Detailed NMFC 4587 for bagged foundry additives
Freight Group
UNGROUPED ARTICLES
Ungrouped article with item-specific guidance
Class Range
50 1 classification
Fixed Class 50, weight-based rating
Hazardous
No
Not regulated as hazardous material

Classification Details

NMFC Description Class
4587.00 Additives, foundry sand, consisting of clay and various mixtures of clay, ground coal, wood flour or binding or treating compounds, in bags 50

How to Determine Your Class

To find the correct freight class for your shipment:

  1. Confirm you’re shipping bagged blends of clay with ground coal, wood flour, or binder/treating compounds. If the product isn’t in bags, use a different NMFC item.
  2. Keep moisture out: use plastic-lined or sealed sacks, stretch-wrap the pallet, add a top sheet, and avoid floor-loading. Wet bags can tear and change product performance.
  3. Document exact weights. This item rates by weight, so scale tickets prevent reclass: e.g., 40 bags × 50 lb + 45 lb pallet = 2,045 lb gross.
  4. Palletize tightly with corner boards and 3–4 stretch-wrap passes. Mark “Foundry Sand Additives—Bagged, NMFC 4587, Class 50” to speed carrier inspections.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

Business Value

  • Class 50 delivers favorable LTL pricing for dense, bagged mineral mixes—ideal for routine replenishment to foundries and mold shops.
  • Weight-based rating eliminates density calculations, cutting quote time and reducing reclass disputes or inspection delays.
  • Non-hazardous designation avoids hazmat surcharges and special paperwork, widening carrier options and simplifying scheduling.
  • Uniform bag packaging improves stackability and handling, lowering damage risk and OS&D costs across multi-stop casting supply routes.