Karver
KJ25 HIGH LOADS JAMMER
High load jammer
The jammer that won’t give up!
Unlike traditional jammers that squeeze lines
between 2 jaws, Karver KJ jammer secures the line evenly
around its cover with 3 jaws.
2.079,63 €
Quantità limitata
SKU
PF840250
Boat size: Da 9 a 33 metri
Usage:
ROPE HOLDING
- No slipping when under high load. No rope wear.
PERFORMANCE
- Up to 50% lighter than the competition.
- Up to 3 different rope diameters can be used on the same jammer
SPECIAL FEATURES
- Remote control possible.
- Easy maintenance.
The conical KJ can be taken off its base, which can then be bonded into a casing on the deck or in the mast.
| Technical Data | |
|---|---|
| Weight | 0.743 kg |
| Boat size | 30 to 110″ |
| Workload | 2,50 T |
| Breaking load | 5,00 T |
| Max line space (mm) | 14,10 |
| Mini-Maxi line diameter (mm) | 8 – 14 |
| Max best line diameter (mm) | 12 |
| Long x Width x Height (mm) | 135 x 57,2 x 64,5 |
| Fixing | 3 x M8 |
- Innovation : 3 jaws surround the rope (instead of 2 on all other blockers on the market). The load is distributed on the rope and the sheath wears less.
- Innovation : The conical shape accentuates the hold of the rope. The more you pull, the more resistance there is.
- Design : The cone containing the locking mechanism can be installed without its foot in a reinforced “sock” installed in any location : deck, boom, mast, bowsprit,…
- Convenient : The KJ can be ordered with or without its stand
- Practical : The opening and closing (in the axis of the rope) can be controlled remotely by installing extensions. The Blocker is installed as close as possible and limits the undesirable effects of the elasticity of the rope. It is very often found as a blocker on headsail tack.
- Performance : The rope does not slip. There is very little recoil when blocking.
- Convenient : the ascender can be removed from the foot without tools. Maintenance and cleaning are easy. If necessary, the cone can be replaced very quickly.
- Performance : Extremely compact and light.
- Design : Online ordering allows the blocker to be installed in very small and even hidden locations.
- Performance : In the open position, the jaws open wide and offer very little resistance to the string
- Performance : The reduced wear of the sheath greatly limits string replacements. Investment in technical ropes is relevant
- Ergonomics : No constraint on the operations height (unlike a jammer that opens from the top : Each KJ can accommodate a wide range of diameters without affecting performance
- The KJ is also available without its foot (KJ CONE) in order to be installed in a laminate slipper
- A KJ15 can hold 1.5 T but you must choose a rope capable of withstanding 3 or 4 times this load to prevent the sheath from breaking. This is a valid rule for all blockers in the market.
- The best results observed are with ropes whose sheath is composed of polyester and PBO
- No blocker on the market can block pure Dyneema. The KJ is no exception
- Like the majority of blockers on the market, KJs are not intended to be opened under load. You will probably be able to do this in an emergency, but it is not designed for that.
- It is possible to remove the locking system in the open position. The modification is done simply in a few minutes. In this case, it is customary to extend the main control with a line and use a jam cleat to keep the ascender open.
- The KJ is also available without its foot (KJ CONE) in order to be installed in a laminated slipper
- We sell at cost price the molds which allow to create the female shape of our ascender so that it is perfectly integrated in a bridge , a mast, a boom, a bowsprit,…
- The principle of the ascender in 2 parts makes it easy to remove the ascenders during wintering. For new boats, it is possible to install the brackets and come and install the cones at the time of delivery.
- Like all other blockers, the line must be well aligned on entry and exit. The tolerance is 5 ° at the entry and 10 ° at the exit.
- The KJs are blockers intended for both racing and cruising. If you have a problem with a slippery or damaged string, the KJ will easily fix it.
- The locking principle is identical between the aluminum version and the carbon version of the KJ. Beyond the change of material of the foot and the cone, the 3 main evolutions between the KJ and the KJC are the change from the main control of stainless steel cables to textile controls, the replacement of the closing zipper which is located under the main control for the KJs with a button located on the blocker for the KJCs and the replacement of the aluminum jaws in stainless steel jaws.
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