Donut Crib & Fiber Crib Blocks for Roof Support
Donut Crib & Fiber Crib Blocks are designed to provide high-capacity, permanent roof support. Steel fiber reinforcement with the crib provides
a higher load capacity and toughness as compared to concrete blocks alone.
Load transfer layers increase strength and add some yield capability for
active ground conditions.
High-Strength & Dimensionally Stable
High-strength Donut Crib & Fiber Crib Blocks are made from a blend of fibers and concrete materials. This makes them dimensionally stable, resistant to atmospheric deterioration and provides a “cut-able” support to transport waste material for “mine through” applications.
Mine applications for Donut Crib & Fiber Crib Blocks include:
- Permanent standing support at shaft or slope bottoms
- Permanent support along roadways & in air courses
- Support under beams or cross-bars
- Support for mine through areas in longwall panels
- Cut-able support at rib-line in head or tail gate entry
Donut Benefits
- Compact 17.5" diameter provides high strength
in a small package - Quick & simple one unit per layer stacking
- Easy to preload with Packsetter bags or Hydrocells
to add strength and yield - Cut-able
Donut Specifications
- Donut Crib - Part # - DC17.5
- 17.5 inch diameter x 3 inch thick, with 4 7/8 inch center hole
- Load Capacity - 350 tons*
- Palletized 60 per pallet with stretch wrap
- Load transfer discs included
Fiber Crib Block Benefits
- Versatile product for support and construction
- 24" foot print provides wide load distribution
- Can be preloaded using Packsetter bags or a Hydrocell system
- Cut-able
Fiber Crib Block Specifications
- Fiber Crib Block - Part # - SRCB8x24
- 8 inch wide x 24 inch long x 4 inch thick
- Load Capacity: Open Stack - 415 tons*, Closed Stack - 880 tons*
- Palletized 60 per pallet with stretch wrap
Fiber Reinforced Concrete Support
- Won't shrink
- Won't rot
- Won't rust
*As supplied by E. Dillon & Company.
Download the brochure on Donut Crib & fiber Crib Blocks.
Contact us for more information or to discuss your requirements with a sales engineer.