Sandblasting nozzle for high pressure washer

Most people associate a sandblaster with the principle of surface treatment with an air stream with an abrasive. The size of the devices does not matter, the principle is the same for all. I wrote about several models of compact sandblasting guns in this article: Sandblasting guns without sand consumption for garage and car service. Best option to remove rust and paint

But instead of air, you can use a stream of water. To do this, it is easy to convert any high-pressure mini-washer into a hydro-sandblaster using the following nozzle:

Instead of a nozzle, the nozzle is screwed onto the handle of a mini-sink, and the sand intake is stuck into a bucket with sifted dry quartz sand. Sand is sucked in during operation. Scheme of work:

In the photographs, the process and the result of metal processing looks like this:

According to reviews, the performance of the nozzle is sufficient even from a wash with low pressure. And if you have a professional bump stop, then the efficiency of work will be even higher. There is a metal nozzle inside the nozzle. This is a consumable item, ceramic nozzles can be ordered on aliexpress. However, the very nozzle for the mini-sink can be purchased there.

Link. Cost with delivery from a warehouse in Russia (cheaper than from China).

A similar offer from a Chinese store:

To make sure that such a nozzle is a working tool with decent performance, watch a short video:

The pressure of the mini-washer in the video is 140 bar. More offers and their prices:

If desired, you can assemble this attachment yourself:

The nozzle will need to be sharpened, the pipes will need to be threaded. Taking into account the cost of the nozzle, it is unlikely that you will save a lot. Waste more time.

In addition to garage work, a hydrosandblasting machine can be used to remove graffiti on house facades and fences:

The device and the attachment will be useful to management companies, and when inscriptions appear on the facades of houses, they can be quickly removed. Also, the nozzle will cope with cleaning paths made of natural stone or vibropressed paving stones.

The advantage of such a nozzle (except for the price), I think, is that fine dust is not created during its operation and it is not necessary to have protective suit like a diver with filters and air supply to the worker in the case of pneumatic sandblasting apparatus. All sand and dust is carried away by the water. But safety glasses still need to be worn for safety reasons.

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