Carabiners which are to be used for life support must be “positive-locking” which means that it requires 3 motions to open the gate. These three motions usually consist of pushing the carabiner sleeve up or down, twisting the sleeve, and finally, pulling the gate inward. Some carabiners replace the first step with the pressing of a button. Life support carabiners must also have a breaking strength of at least 5,000 lb. WesSpur stocks a wide variety of carabiners that meet his standard for you to choose from. (For more on Arborist safety standards, check out the ANSI Z133 safety standards for arboricultural operations.)
The Petzl D Carabiner is one of our most popular. Compact shape, excellent action, key-lock gate and a high breaking strength make this a good choice. Available with ball-lock or tri-action metal gates. Rated at 6,300 lb. (28 kN).
Features: Aluminum - 6,300 lb. tensile - Weighs 2.6oz - Key Lock
Dimensions: 4 1/4” x 2 1/2” Gate Opening: 3/4”
The Petzl OK carabiner is oval shaped and compact. Tri-act, keylock gate. Rated at 5,400 lb. (24 kN).
Features: Aluminum - 5,400 lb. tensile - Weighs 2.6oz - Key Lock
Dimensions: 4 1/4” x 2 1/2” Gate Opening: 3/4”
This carabiner offers a wider opening for accepting more rope, hardware, or just making it easier to clip in. A smooth locking carabiner with key lock gate, available with ball lock or tri-action metal gate. Rated at 5,625 lb. (25 kN).
Features: Aluminum - 5,625 lb. tensile - Weighs 3.1oz - Key Lock
Dimensions: 4 3/4” x 3 1/4” Gate Opening: 1”
This carabiner maintains 15Kn (3375 lb.) strength in all directions and has a 22kn (4950 lb.) strength along it's main axis. Used to close any harness having two attachment points that must be joined with a connector. Designed to be loaded on its three axes. Keylock System (snag-free body/gate interface). Omni carabiner with screw lock gate is also available.
Features: Aluminum - 4,950 lb. tensile - Weighs 3 oz - Key Lock Gate
Extra wide opening swing gate makes it super easy to clip this carabiner onto all kinds of connections. This carabiner is individually tested for smooth action, strength, and high performance. Rated at 5,175 lb. (23 kN).
Features: Aluminum - 5,175 lb. tensile - Weighs 4 oz - Pin Lock Gate
Dimensions: 4 1/4” x 2 1/2” Gate Opening: 1”
This carabiner is built to NFPA standards. It features a very high breaking strength and a pull-down gate which is easier to open with one hand than normal carabiner gates. Rated at 6,750 lb. (30 kN).
Features: Aluminum - 6,750 lb. tensile - Weighs 4 oz - Pin Lock Gate
Dimensions: 4 1/2” x 2 1/2” Gate Opening: 3/4”
Oversized carabiner fits well in the hand and has room for lots of gear or large diameter lines. 2 gate options: 3 stage auto, 4 stage auto (Quadlock). Rated at 6,750 lb. (30kN).
Features: Aluminum- 6,750 lb. tensile - Weighs 4 oz - Key Lock Gate
Dimensions: 4 7/8” x 3 1/2” Gate Opening: 1”
HMS shape is great for rappelling and climbing. 2 gate options: 4 stage auto (Quadlock) and springlock auto lock. Rated at 5,625 lb. (25kN).
Features: Aluminum- 5,625 lb. tensile - Weighs 3 oz - Key Lock Gate
Dimensions: 4” x 2 3/4” Gate Opening: 3/4”
Pear shaped carabiners are ideal for use with descenders such as figure eights and the Gri Gri. The bell shape allows plenty of room for your descender, rope, and d ring. This Kong carabiner has a knobby plastic gate that is easy to open. Rated at 4,950 lb. (22kn).
Features: Aluminum - 4,950 lb. tensile - Weighs 3 oz - Key Lock Gate
Dimensions: 4 1/2” x 3” Gate Opening: 1”
Aluminum Kong rescue carabiner has an easy to grip textured plastic gate, wide mouth for multiple attachments, and is high strength, making it a popular auto-locking carabiner among tree climbers. Rated at 6,750 lb. (30kn).
Triple locking aluminum carabiner with a metal sleeve gate. Wide opening for easy attachment onto Dee rings. Rated at 5,850 lb. (26kn).
Features: Aluminum - 5,850 lb. tensile - Weighs 3 oz - Key Lock Gate
Dimensions: 4 3/4” x 3” Gate Opening: 7/8”
HMS pear carabiner has metal triple-action gate that snaps closed quickly. Wider top end allows easier attachment and bent pear shape is great for attaching to figure 8s.. This carabiner is a great value for climbers. Rated at 5,625 lb. (25kn).
Features: Aluminum - 5,625 lb. tensile - Weighs 3 oz - Key Lock Gate
Dimensions: 4 3/4” x 3 1/2” Gate Opening: 1”
Captive eye carabiner has a metal gate and a captive eye large enough to accept 1/2” rope. This pear shaped carabiner features a groove in the top inside corner of the carabiner to make sure hardware is positioned correctly every time. Rated at 5,625 lb. (25 kn).
Features: Aluminum - 5,625 lb. tensile - Weighs 4 oz - Key Lock Gate
Dimensions: 5 1/4” x 3” Gate Opening: 7/8”
Bent pear shapes are easier to hold and open with one hand. Rated at 5,625 lb. (25 kn).
Features: Aluminum - 5,625 lb. tensile - Weighs 4 oz - Pin Lock Gate
Dimensions: 4 3/4” x 3 1/4” Gate Opening: 3/4”
Features a groove to keep rope properly aligned and a swivel for easy positioning while in use. Rated at 6,750 lb. (30 kn).
Features: Aluminum - 6,750 lb. tensile - Weighs 5 oz - Pin Lock Gate
Dimensions: 8” x 2 3/4” Gate Opening: 3/4”
The Revolver is a popular carabiner with a built-in pulley to reduce rope drag by up to 40%. This is a great carabiner for redirects, rescue, and is compact and well designed. Also available with a wire gate and a screw lock gate.
Features: Aluminum - 5,400 lb. tensile (24kn) - Weighs 3.1oz - Key Lock
Oversized carabiner fits well in the hand and has room for lots of gear or large diameter lines. 3 gate options: 3 stage auto, 4 stage auto (Quadlock), and springlock auto. (50 kn).
Features: Steel - 11,250 lb. tensile - Weighs 10 oz - Key Lock Gate
Dimensions: 4 7/8” x 3 1/2” Gate Opening: 1”
Kong carbon steel provides a super breaking strength for this wide-mouth carabiner. Great for attaching multiple slings, ropes or anchors. New version features a shaped metal gate that is easy to open in gloves or rain. Rated at 11,250 lb. (50 kn).
Features: Carbon Steel - 11,250 lb. tensile - Weighs 10 oz - Key Lock Gate
Dimensions: 4 1/2” x 3 1/4” Gate Opening: 1 1/8”
Compact and strong, this carabiner has impressive strength. A good rigging, climbing, or rescue carabiner, without anything fancy. Rated at 11,250 lb. (50 kn).
Features: Steel - 11,250 lb. tensile - Weighs 10 oz - Key Lock Gate
Dimensions: 4 1/2” x 3 1/4” Gate Opening: 3/4”
Zinc plating for maximum life is one of the great things about this compact but very strong biner. Fits easily in one hand, has a textured gate which is easy to open even when wet or wearing gloves. Perfect rescue carabiner. Rated at 10,125 lb. (45 kn).
Features: Steel - 10,125 lb. tensile - Weighs 10 oz - Pin Lock Gate
Dimensions: 4 1/2” x 3” Gate Opening: 3/4”
Zinc plating adds durability and long life to this great shaped, steel auto locker. Carabiner gate is textured for a good grip. Bent pear shape helps ensure that the carabiner is always loaded properly. Rated at 9,000 lb. (40 kn).
Features: Steel - 9,000 lb. tensile - Weighs 10 oz - Pin Lock Gate
Dimensions: 4 1/2” x 3” Gate Opening: 3/4”
Zinc plating for maximum durability and life, captive eye, and textured metal gate are several great features of this carabiner. Rated at 10,125 lb. (45 kn).
Features: Steel - 10,125 lb. tensile - Weighs 10 oz - Pin Lock Gate
Dimensions: 4 1/2” x 3” Gate Opening: 3/4”
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