Next Return Previous

Proverti

AC080 AC081
AC080 AC081

Overview


AC080
(#1874)

Front Rear
Front Rear
 
Side Open for Rigging
Side Open for Rigging

I acquired my Proverti AC080 from Ondřej Belica in 2015.

My Proverti AC080 is 120 mm. long, 66 mm. wide, 29 mm. high, and weighs 193 g. It consists of a movable lever and a fixed anvil sandwiched between two plates. The rear plate is an irregular pentagonal-shaped stamping made from 4.4 mm. anodized aluminum. A round 14.5 mm. hole is cut in the top of the plate, and a larger 23.6 by 23.8 mm. hole is cut in the left side. The front plate is irregular and smaller, lacking the projection for the upper hole. The front plate pivots on the lever mounting pin, and a notch in the left side of the front plate provides clearance for the anvil mounting pin.

The anvil and lever are 13 mm. thick aluminum pieces. The anvil is attached to the rear plate by a rivet and a pin. The anvil itself is shaped like a low, wide isosceles triangle, with a cutout opposite the lever end. The lever is mounted on another rivet, but is free to rotate. A small spring forces the lever to the engaged position. A cutout on the rear side of the lever provides clearance for the spring.

The front plate has a rigging icon, "AC 080," "¢Ø12," "EN 353-2 2002," "EN 358:1999," a horizontal line, "EN 12841:2006," "type A," "max load 120 kg," another horizontal line, "Date of manufacture 04/2015," "Serial No 13685269," "CE0082," the Proverti logo, and a book-with-an-"i" icon.

Comments

The 120kg load limit may not be adequate for heavier people or people carrying loads.

The following rope grabs are all variations of the same basic design:

Image Rope Grab Manufactured Side Plates Locking Tab
ISC Rocker ISC Rocker 2006 (?) 3.9 mm. Anodized Aluminum Yes
Proverti AC08 Proverti AC080 4/2015 4.4 mm. Anodized Aluminum Yes
Proverti AC081 Proverti AC081 4/2015 2.5 mm Stainless Steel Yes
Singing Rock Locker Singing Rock Locker 1/2008 4 mm. Anodized Aluminum Yes
Troll Rocker Troll Rocker ~2001 4.3 mm. Anodized Aluminum

No
(newer models have the tab)

Xinda Rocker Xinda Rocker ~2014 4 mm. Anodized Aluminum Yes
Yates Rocker Yates Rocker ~2003 4.3 mm. Anodized Aluminum Yes

Each of these is a compact, lightweight (except for the stainless steel Proverti AC081) fall arrest that can also be used as a ratchet when hauling loads over a pulley. I'm not sure when the second carabiner hole is necessary - none of these came with instructions showing it in use.

These have no sharp teeth to cut the rope sheath. Some informal testing suggests that, lacking teeth, these can slide before engaging, but normally the slippage is less than a foot. The cases where I observed this were somewhat contrived (i.e., I held the grab in a specific position and carefully dropped the load straight down), and so I'm not too worried about the slippage. I would be far more concerned if they had sharp teeth and didn't slip at all.


AC081
(#1875)

Front Rear
Front Rear
 
Side Open for Rigging
Side Open for Rigging

Technical Details

I acquired my Proverti AC081 from Ondřej Belica in 2015.

My Proverti AC081 is 111 mm. long, 68 mm. wide, 26 mm. high, and weighs 333 g.

It consists of a movable lever and a fixed anvil sandwiched between two plates. The rear plate is an irregular pentagonal-shaped stamping made from 2.5 mm. stainless steel. A round 14.7 mm. hole is cut in the right side of the plate, and a hole is cut in the left side and lined with a 14.5 mm grommet. The front plate is irregular and smaller, lacking the projection for the upper hole, but having a grommet in its lower hole as well. The front plate pivots on the lever mounting pin, and a notch in the left side of the front plate provides clearance for the anvil mounting pin.

The anvil and lever are 12 mm. thick stainless steel pieces. The anvil is attached to the rear plate by a rivet and a pin. The anvil itself is shaped like a low, wide isosceles triangle, with a cutout opposite the lever end. The lever is mounted on another rivet, but is free to rotate. A small spring forces the lever to the engaged position. A cutout on the rear side of the lever provides clearance for the spring.

The front plate has an up-pointing arrow, a rigging icon, "AC 081," "¢Ø12," "EN 353-2 2002," "EN 358:1999," a box containing "'EN 12841:2006,' 'type A,' and 'max load 120 kg,'" "Date of manufacture 04/2015," "Serial No 13671887," "CE0082," the Proverti logo, and a book-with-an-"i" icon.

Comments

The AC081 has a stainless steel shell, lock, lever, and anvil. Although the shell is thinner than the one on the AC080, it still increases the weight, but by less than 20%.

The 120kg load limit may not be adequate for heavier people or people carrying loads.

The following rope grabs are all variations of the same basic design:

Image Rope Grab Manufactured Side Plates Locking Tab
ISC Rocker ISC Rocker 2006 (?) 3.9 mm. Anodized Aluminum Yes
Proverti AC08 Proverti AC080 4/2015 4.4 mm. Anodized Aluminum Yes
Proverti AC081 Proverti AC081 4/2015 2.5 mm Stainless Steel Yes
Singing Rock Locker Singing Rock Locker 1/2008 4 mm. Anodized Aluminum Yes
Troll Rocker Troll Rocker ~2001 4.3 mm. Anodized Aluminum

No
(newer models have the tab)

Xinda Rocker Xinda Rocker ~2014 4 mm. Anodized Aluminum Yes
Yates Rocker Yates Rocker ~2003 4.3 mm. Anodized Aluminum Yes

Each of these is a compact, lightweight (except for the stainless steel Proverti AC081) fall arrest that can also be used as a ratchet when hauling loads over a pulley. I'm not sure when the second carabiner hole is necessary - none of these came with instructions showing it in use.

These have no sharp teeth to cut the rope sheath. Some informal testing suggests that, lacking teeth, these can slide before engaging, but normally the slippage is less than a foot. The cases where I observed this were somewhat contrived (i.e., I held the grab in a specific position and carefully dropped the load straight down), and so I'm not too worried about the slippage. I would be far more concerned if they had sharp teeth and didn't slip at all.