|Name:||Petzl Am'D Spinball|
|Sleeve Rotation:||120° (unlocked) | 120° (maximum)|
|Gate Shield:||relieved: blocked|
|Dimensions:||Length: 111 mm|
Width: 63 mm
Gate Opening: 22 mm
|Strength Ratings:||28 kN | 7 kN | 8 kN|
|Other Markings:||Forged: PETZL Am'D Pat. | (ratings) CE0197|
Injection Molded: (Petzl oval logo) SPINBALL PATENTED (fingerprint texture)
|Batch Marking Location:||spine-exterior-left|
|Collection Criteria:||★ Mechanically Interesting|
★ Historically Interesting or Iconic
|Summary:||manual version of ball-lock|
|Description & Commentary:|
The earliest version of Petzl's triple action button-locked carabiners. From the unlocked position, the yellow sleeve is manually rotated about 120 deg and engages a spring-loaded green button which protrudes through a hole in the sleeve. Depressing the button (or ball) and rotating the sleeve will unlock the carabiner. The rotation of the sleeve is entirely manual and not spring-powered, permitting the carabiner to remain in the unlocked position until it needs to be secured - much like a traditional screw lock carabiner.
Most modern triple-action carabiners use two spring-powered locks (full autolocking), whereas the Spinball uses a manual lock (the spin) in conjunction with a single autolocking mechanism (the ball).
Note that the plastic sleeve Ball Lock v1 and the metal sleeved Ball Lock v2, unlock after about a 45 deg rotation but the spin lock requires ~120 deg of rotation - which seems appropriate considering the manual aspect of this mechanism.
I appreciate manual locking carabiners, climbing almost exclusively on them for recreational tree climbing. Even so, I prefer a metal-sleeved screw lock carabiner, as I expect it would be a bit stronger at resisting force on the gate face - I would be concerned about the plastic sleeve deforming under a gate face load. That said, this is one of my favorite carabiners in the collection, and I wish we could get a re-release using a metal sleeve and a lightweight hot-forged carabiner body.