The BTE Mid-Western FL990X is a swivel adapter assembly for the BTE Mid-Western S83 jackleg drill, paired with the FL7 power-retract or TUL2B telescopic feed leg. It lets the drill rotate freely on the leg so the operator can change drill angle without unclamping the feed-leg setup. Mining, tunneling, and rock-bolt crews specify it for fanning bolt-hole patterns and multi-angle production drilling from a single feed-leg setup.
- Swivel adapter assembly built for the BTE Mid-Western S83 jackleg drill platform, the U.S. industry-standard production rock drill.
- Sits between drill body and feed leg, letting the drill rotate freely so the operator can change drill angle without unclamping the leg.
- Pairs with the FL7 power-retract feed leg (36, 42, 54 in.) and TUL2B telescopic feed leg (24-72 in.) across S83 FA-FD jackleg drills.
- Assembly weight 4 lb; installs in the standard S83 jackleg drill-and-feed-leg interface as a drop-in replacement for the rigid coupling.
- Built for jackleg-mounted production drilling where the operator works the drill at multiple angles around a rib, face, or stope from one feed-leg setup.
- Tunnel-roof and tunnel-wall bolt-hole drilling crews specify it for fanning bolt-hole patterns across the face from one feed-leg setup.
- Crowder Supply stocks the BTE Mid-Western FL990X swivel adapter, BTE Mid-Western S83 jackleg drills, FL7 and TUL2B feed legs, and replacement parts.
- BTE Mid-Western manufactures the S83 platform in the United States to the original Gardner Denver design, with industry-leading parts depth for U.S. rock-drilling crews.
Crowder Supply stocks the full line of jackleg drills and pair it with the matching bars rods. The rock drill buyer’s guide walks through choosing the right one. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
