How much weight can this support?

The Petzl ascension is certified to the EN 567 standard that says 4kN (900lbs) static load without destroying the device or rope. The key is static load. The device can withstand higher static loads to about 6kN (1350lbs), but any dynamic load applied from 4kN (900lbs) to 6kN even for a millionth of a second will eat your rope to shreds. The general rule is toothed cam devices eat rope at 4kN (900lbs), so don't use it as a rope grab, fall arrester, or progress capture unless you really know what your doing. The EN12841 type B standard tests show that it will handle dynamic loads over 4kN (900lbs), but it becomes very depended on what type / age of rope is used. Its a hand ascender for body weight (static loads), if your using it for something else consider another device.

Is this a practical solution for hanging my kids' rope swing to make it easily height-adjustable? Indoor use. 10.5 mm static rope.

No it's intention is too ascend rope, I see what your thinking but eventually the rope its hanging unto not the actual swings rope but what its holding would fail from being used in a fixed position.

What diameter rope is this for? ca i use it with 12-strand arborist climbing rope, 1/2" by 150' blue ox rope?

It will accept 8mm to 13mm rope - Arborist rope will be fine.

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🧗‍♂️ Elevate your climb with grip, safety, and style—never settle for less!

CARABINER READY - Convenient upper hole for quick and secure carabiner attachment—streamline your gear setup.
SNAG FREE SAFETY - Fully integrated safety catch minimizes rope snags, keeping your climb smooth and secure.
POWER GRIP PRECISION - Ergonomic handle design delivers unmatched comfort and control during intense climbs.
GLOVE FRIENDLY ACCESS - Wide opening ensures effortless handling even with bulky gloves—never miss a beat on the ascent.
DUAL HANDED POWER PULL - Upper ergonomic section maximizes pulling force when using two hands—boost your climbing efficiency.

The PETZL Steigklemmen Ascension Riser Clamp is a lightweight, ergonomically designed aluminium climbing ascender featuring a moulded handle for powerful grip, a wide opening for gloved use, and an integrated safety catch to prevent snagging. Ideal for professional and recreational climbers seeking reliable, efficient rope management.

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Color	Black / Yellow
Size	One Size
Hand Orientation	Right
Style	Single
Height	2 inches
Length	9 inches
Weight	165 Grams
Width	4 inches
Shape	D-Shape
Material Type	Aluminium
Number of Items	1
Season	continuity
Usage	climbing
Sport	Klettern
Included Components	Rope Clamp
Batteries Included?	No
Brand	PETZL
Department	Unisex
Manufacturer	Petzl
Item model number	B17ARA
Product Dimensions	30 x 20 x 15 cm; 208.65 g
ASIN	B00Q78W64M

PETZLSteigklemmen Ascension Riser Clamps

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