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.
