Double-Head Tapping Machine | Both Rod Ends at Once
A double-head drilling and tapping machine works both ends of aluminum rod at once - operator loads, handwheel feeds, and both holes finish in a single cycle.
Key Specifications
- Materials
- Aluminum round rod stock
Key Features
- Machines both rod ends in a single setup
- Opposed double heads drill and tap simultaneously
- Handwheel feed gives the operator full control
- Coolant lines protect the aluminum threads
How Are Both Ends of Aluminum Rod Machined at the Same Time?
Short answer: With opposed double heads that close in together. This video shows a double-head drilling and tapping machine: the operator lays an aluminum rod on the fixture, turns the handwheel, and both spindle heads feed into the part simultaneously - holes and threads for both ends are finished in one cycle, then the next rod from the staged row goes in.
What the Video Demonstrates
| Stage | Equipment | Result |
|---|---|---|
| Load | Rod placed on fixture between heads | Both ends aligned with the tools |
| Feed | Handwheel-driven spindle advance | Controlled, repeatable infeed |
| Cut | Opposed drill and tap heads | Both ends machined at once |
| Cool | Flexible coolant lines | Clean threads in aluminum |
Key Applications
- Handle pins and rods threaded at both ends
- Aluminum round bar hardware production
- Paired drilling and tapping in one setup
- Handle lines feeding bent parts with machined ends
Double-Head vs. Single-Head End Machining
| Criterion | Single head | Double-head machine |
|---|---|---|
| Setups per rod | Two, with re-gripping | One |
| Hole alignment | Depends on second setup | Opposed tools stay concentric |
| Cycle time | Doubled | Both ends at once |
| Output per operator | Lower | Roughly doubled |
FAQ
Can the machine drill and tap in the same cycle? Yes - the heads carry drill and tap tooling; the video shows finished, clean holes in both ends of each rod inspected afterward.
What rod sizes can it handle? The video runs aluminum round rod for handle applications; fixture stops and tooling are matched to your diameter and length.
Why the handwheel feed? It lets the operator feel the cut and control infeed on soft aluminum, keeping thread quality consistent while still cycling fast.