KOWAL™ 1mm Nylon Oversize Actuator for Sanwa JLF Series Joysticks

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The KOWAL™ 1mm oversize actuator is manufactured from hard wearing Nylon and is intended to be used as a replacement actuator on the Sanwa JLF series of joysticks. Once fitted, you will benefit from a shorter throw and faster engagement of your joystick, which will result in improved gameplay. The KOWAL™ 1mm oversize actuator is ideal for fight stick builders and those customers who like modding fight sticks for improved performance. The KOWAL™ 1mm oversize actuator has been tested with square and octagonal restrictor plates and engages the stock switches on the Sanwa JLF series of joysticks consistently.

The KOWAL™ 1mm oversize actuator is compatible with all the Sanwa JLF series of joysticks.

Installing the KOWAL™ 1mm oversize actuator is very straight forward.
1/ Take your JLF series joystick and using a small flat head screwdriver, gently prise off the C Clip on the bottom of the joystick.
2/ Lift off the stock actuator. Replace this with the KOWAL™ 1mm oversize actuator and gently push down.
3/ Using a small pair of pliers, gently grip the C Clip and with a gentle squeeze, the C Clip will snap back into place.

Dead Zone:
In the diagram above:
Neutral Zone (area where actuator doesn't touch switches) is indicated in BLUE.
Dead Zone (area where actuator presses begins pressing switch) is BLACK.
Activation (are where switch is pressing down) is RED.

KOWAL™ actuator retains the neutral zone. This allows switches to perform normally.


  • 5
    I was skeptical at first.

    Posted by Michael Harto on 10th Mar 2020

    As the title says, I was skeptical when I read the previous reviews that this actuator would make octa-gate feels accurate. I tried Octa-gate before and I hated it because it often skips my diagonal input when i roll QCF/QCB move (especially in older fighting games). But since this is quite an inexpensive mod, I just need to try and prove it for myself if it really works like they said.
    Needless to say, I really didn't have high hopes. But today I am totally blown away by how amazing this actuator works with octa-gate. It doesn't matter how fast I do QCF/QCB the diagonal input never misses, and how quickly I could dash around the battle stage and especially the dragon punch... it came out 10 out of 10 tries. I am impressed.

    Thank you Kowal & ArcadeWorldUK!

  • 5
    A must buy

    Posted by warwick neighbour on 1st Feb 2020

    A must buy in my opinion, makes the reactions so much quicker

  • 4
    Kowal 1mm oversize

    Posted by Steven on 15th Aug 2019

    Fitted this to my Hori Hyabussa joystick. At the same time I replaced the standard ball top with a baton top. I don't feel that the throw was shortened much. I wonder if the longer batton top has contracted the reduced throw via the 1mm oversize collar? I'll replace the top back to a ball and try. Anyway not very hard to install. No issues. Happy with it.

  • 5
    Pros and Cons

    Posted by Unknown on 31st Jan 2019

    Pros: My Sanwa JLF w/ octagonal gate + AWUK Kowal actuator + AWUK 2lb spring = double precision. Great mod. Thx.

    Cons: ABS dust appears quickly.

    You just need to improve the quality of the plastic (ABS).

  • 5
    essential mod

    Posted by Johan on 27th Nov 2018

    Essential mod for my hori rap hayabusa stick, trims the dead zone significantly for a snappier stick rotation.
    i recommend this along with the kowal octa gate restrictor and a 2-4lb spring of your choosing

  • 5
    Great product and based in uk

    Posted by Mp on 25th Sep 2018

    Absolutely mandatory for a octagonal gate with 2lb spring.

  • 5
    Must buy

    Posted by Adin Low on 16th Apr 2018

    Installed this and the throw is incredibly small now and movement has became less effort. Fantastic.

  • 5
    Great little upgrade

    Posted by Keith Smith on 4th Apr 2018

    A useful little piece of plastic that shortened the throw distance on my Hori Hayabusa stick. If you are upgrading a Hori stick it is recommended that you buy a Kowal Hayabusa Octogate with it as it may not work with the standard gate on the Hayabusa stick. Combine with a 2lb spring and you'll be laughing.

  • 5
    Amazing Actuator...

    Posted by Ulisses Medeiros on 15th Nov 2017

    the actuator is exceptional and help to improve the speed of the inputs in a satisfactory way and that helps to better the execution of the game ... I recommend using a spring of 2lb or 4lb

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