Shinano Pneumatic Tools Japan

Shinano Pistol Pneumatic Air hammer SI-4120A with "with Retaining Spring (400-8) x 1 without Chisels" accessories

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We are the dealer of Shinano tools in the USA. Our Shinano Pistol Pneumatic Air hammer SI-4120A comes with with "with Retaining Spring (400-8) x 1 without Chisels" accessories

About this tool

Shinano Pneumatic Hammer SI-4120A Shinano devised total solution of pneumatic tools which are build in Japan for your reliability and durability. With Shinano pneumatics, you can now focused on the job at hand as. Shinano's pneumatic tools is the smarter investment as it have fewer moving parts thus making it maintenance friendly, safer on operational, cheaper operational cost compared to electric tools which consumes higher energy when unstable current being used at variable speed. Shinano SI-4120A is an industrial pneumatically powered tool with the combination of power, compactness and light weight for a better operator comfort at speed. Shinano Pneumatic Hammer SI-4120A is equipped with a unique vibration dampening design for lesser fatigue on working with thick coat removal. Be advised that, if you have a light air compressor of 50% duty cycle, your motor can perform safely but you may overheat your compressor. Hence, a 5 hp compressor with a 100% duty cycle is going to make more air than a 7.5 hp compressor that only has a 75% duty cycle. With Shinano SI-4120A you can also use it as a chipping hammer to remove heavy rust, loose scale, weld scalers, coating, layered sea shell and paint, leaving a clean metal surface to work on. Different models offer choices of number of needles, operating speed, and power levels. For comparable alternative on removing rust and coating you can also opt for Shinano Pneumatic Needle Gun Scaler SI-4160 or Shinano SI-4160.


Shank Sizein./(mm)


Stroke Lengthmm

Max 10

Free Blow Speeds.p.m.




Noise Level *dBA/(power)


Vibration *m/s2


Avg.Air ConsumptionCFM/(L/S)



● Pistol grip air hammer for 10.2mm diameter chisels (.401" shank)
● Many kinds of the chisels are available as accessories
● High speed piston power of 2,600 times per min
● Powerful piston enable the tool to cope with many kinds of work

*Noise levels according to ISO 15744:2008,ISO 11203:2009
*Vibration level according to ISO 8662


About Shinano pneumatics 

  • Manufactured in Japan by SHINANO INC, these tools and accessories offer uncompromising industrial quality at reasonable prices.
  • Some SHINANO models have been in continuous production since the Brand was first introduced into Australia in 1978.
  • Large inventories of spare parts are held in stock and these include some parts for discontinued models.
  • SHINANO Air Tools are your choice if you need tools that will give long reliable service in industrial production situations.
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Warranty Information

Manufacturers warranty is 12 months
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6 Reviews

  • 5

    Shinano Pistol Pneumatic Air hammer SI-4120A with "with Retaining Spring (400-8) x 1 without Chisels" accessories

    Posted by John Duke on 1st Jun 2023

    This powerful air tool is recommendable for removing heavy rust leaving you with a clean metal surface to work on.

  • 5


    Posted by James Woods on 6th Feb 2023

    This is an excellent tool for the money, it has lots of power to get the work done not to mention it is easy to set up and use, it has become my go too for those stubborn bolts that need to be blasted off, it works great … even with frozen bolts too. Definitely recommend.

  • 5


    Posted by Bradley Edwards on 6th Feb 2023

    After using this product, I can safely say that I am never picking up a regular hammer ever again. Not after seeing this I put it against some hardened steel with a punch chisel, and it put a huge punch dent into the steel like I used a sledge hammer or something … I couldn't believe it. Very Very good tool hands down would buy again.

  • 5


    Posted by Anthony Carter on 6th Feb 2023

    When I first used this hammer, I couldn't believe the effect it had on the objects being hammered. What surprised me most was that my hand didn't take a beating with the amount of punch it was putting out. I was told about the vibration dampening of this product but I wasn't expecting it to be this good. A+ product.

  • 5


    Posted by Owen Jackson on 6th Feb 2023

    Bought this air hammer a couple weeks ago and i have been using it pretty much everyday since and its performance has been flawless, i initially tested it on some old rusted bolts and it ate it up like it was nothing, the trigger is quite easy to use and not at all difficult to feather for delicate work. It really is of high quality.

  • 5


    Posted by Bryce Watts on 6th Feb 2023

    This is a great air hammer, it is quite compact and lightweight making it very easy to use .. perfect for stuck nails or bolts and even for scaling rusted parts, great product all around.

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