Hollow Aluminum Handle Bending Machine | Crank Pulls
A benchtop rotary bender forms crank handles from hollow flat aluminum bar - the multi-hole profile stays true through every bend, finish unmarked.
Key Specifications
- Materials
- Hollow flat aluminum bar, multi-hole profile
Key Features
- Bends hollow flat aluminum bar into crank handles
- Multi-hole profile stays true through the bend
- Wrap-around die keeps the surface unmarked
- Red clamp block locates each bar quickly
How Are Hollow Aluminum Handles Bent Without Collapsing the Profile?
Short answer: The die supports the profile all the way through the bend. This video shows a benchtop rotary bender forming crank pull handles from hollow flat aluminum bar with three-hole ends: the bar wraps around the bend pin inside a matched clamp groove, so the thin walls stay true, the holes stay round, and the surface comes off unmarked.
What the Video Demonstrates
| Stage | Equipment | Result |
|---|---|---|
| Stage | Bundles of hollow flat bars | Constant supply of blanks |
| Clamp | Red block matched to the profile | Thin walls supported at the bend line |
| Sweep | Rotary wrap-around bend pin | Clean corner, holes stay round |
| Repeat | Index and form the second end | Identical handles in rows |
Key Applications
- Cabinet and furniture crank pulls in aluminum
- Hollow-profile door and enclosure handles
- Hardware needing light weight with a solid look
- High-volume handle production lines
Rotary Bending vs. Press Bending for Hollow Profiles
| Criterion | Press bending | Rotary wrap-around bending |
|---|---|---|
| Thin walls | Wrinkle or collapse | Supported, stay true |
| End holes | Often distorted | Round as formed |
| Surface | Marks on soft aluminum | Clean and unmarked |
| Consistency | Operator dependent | Identical rows of parts |
FAQ
What profile is demonstrated? Hollow flat aluminum bar with three-hole ends, shown as straight bundles and as finished crank handles.
Do the mounting holes deform during bending? No - the clamp supports the bar right up to the bend line, so the holes stay round as the video close-ups show.
Can the same machine run solid bar? Yes - fit the matching clamp groove and bend die, and the station handles solid or hollow stock of the same size.