Beal jammy vs hollow block. Its flexible aramid cord with a polyamide sheath allows it to grip effectively even on small-diameter ropes. On the right is a similar Sterling sewn cord that I have had great luck with, especially on rock climbing ropes. Plenty of material for a third hand or improv rope grab for hauling, and easily paired with a sling for ascending. The Beal JAMMY is stronger with a MBS of 22 Kn. 10/29/1997. I just got one, and in early testing it’s looking great. It's a round cord, so it's easier to keep dressed, and at only 5. Beal jammy slightly used still in great shape $8-sterling hollow block (longer one) never used $14-5 steel biners. 95 shipping. 8mm hollowblock, and 8mm VT. Aug 11, 2017 · Sewn Prusik Cord (Beal Jammy): Beal Jammy personal prusik cord. The HollowBlock is attached to the rope with a three wrap prusik. I use a short Sterling hollowblock for 99% of my friction hitch needs. Beal created the Jammy with the fear of botched knots and your safety in mind. Climbing Clean 57 subscribers Subscribed Mar 27, 2025 · The hollow block is an interesting execution that makes use of the extra tensile strength of aramid to allow the hollow form factor but at the expense of a relatively short service life. This aramid core does not melt, unlike the nylon core found in accessory PRUSIKS!!! 5. Ideal for creating auto-blocking knots such as the Prusik and Machard, this I recently bought the Beal Jammy 50cm prusik cord for rappel backups, but the info sheet it came with said that only the 60cm and 35cm models can be used with ropes >8. It comes in three different sizes: 35 cm, 50 cm, and 60 cm. $7. Jan 8, 2024 · Sewn cord rappel backup options—left is the Beal jammy, which I works well but has serious durability issues in the form of the core bursting out of the sheath. 5 MM in diameter, it's good to use on main lines down to 9mm in diameter. Mar 27, 2022 · Another good option for a rappel backup sling/hitch that might be more appropriate in this situation is the Beal Jammy, a sewn friction hitch with an Aramid core and a nylon sheath. 5mm Beal jammy, 6. Nov 17, 2009 · With Beal's Jammy Prusik, you don't have to leave anything to chance. How to use and differences. My setup: extended rappel; hollow block under my atc (brake strands) in an autoblock to a locker to my belay loop Like would normal cord work better? a FB hitch with dyneema? a BEAL Jammy?. 5mm diameter Beal Jammy. The Jammy is basically a sewn cord made with an aramid core and polyamide (nylon) sheath. 6mm. The BEAL Jammy is designed to fit all rope diameters, on one strand or two. Oct 25, 2022 · Find rock climbing routes, photos, and guides for every state, along with experiences and advice from fellow climbers. Moved PermanentlyThe document has moved here. There are a variety of sewn prusik cords on the market from different manufacturers but I’m going to focus this review on my favorite: the 5. I have a longer Beal cord that I occasionally use, but the hollowblock is my go-to. Constructed from rope with a nyLolen sheath and aramid core, this sling weighs just under an ounce but adds an extra element of safety to your climbing day. dbc pzayb pyyew xsbaw brkg acdf srfts elrh bnjyuc wqffhp