Simplified Mining Instruments (SMI)
SF-100 SMI Sag Flag Roof Monitor
Price: $235.00 – $250.00
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Product info: SF-100 SMI Sag Flag Roof Monitor
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Product information
Robust design and simplistic mechanics make the SMI (Simplified Mine Instruments) Sag Flag Roof Monitor a powerful addition to a miner’s early warning systems and ground control management.
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Product specifications
SF-100 SMI SAG FLAG Roof Monitor
Roof movement can be visually monitored from a distance. Great visual aid for quick stability checks.
- SAG FLAG Collar: Stainless steel collar with movement indication flag and plunger scale.
- Monitoring Rod: Fiberglass rods cut to length for your desired monitoring depth.
- Roof Anchor: Stainless steel anchor sized for your monitoring borehole diameter.
- Movement Indication: 25mm scale on the plunger indicates measurable movement while the reflectorized flag indicates movement from a distance.
- Resettable: The SAG FLAG can be reset multiple times up to 4 inches of total movement.
- Minimum Hole Diameter: 1-1/2″