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DjuiinoStar Mini Hot Air Stirling Engine: A High Performance Pocket-Sized Working Model

4.5 4.5 out of 5 stars 609 ratings
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DjuiinoStar Mini Hot Air Stirling Engine: A High Performance Pocket-Sized Working Model

DjuiinoStar Mini Hot Air Stirling Engine: A High Performance Pocket-Sized Working Model

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From the brand

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  2. diy
    DIY
    DIY
    DjuiinoStar Hot Air Stirling Engine Assembly Kit: Spend 30 Minutes to Build Your Own Stirling Engine

    Build A Real Engine In 30 Mins

    Visit the Store

  3. About DjuiinoStar

    We primarily focused on designing and selling physics toys. We believe that curiosity is the most powerful thing you own, and we hope our products can provide you with endless hours of delightful diversion.

    What should I do if the DIY kit refuses to work?

    DIY-605 offers both fun and educational experiences. Throughout the process, you'll feel a sense of accomplishment. However, being a DIY kit, a single misstep could result in the engine not functioning properly. If this happens, reach out to us for a free replacement and another chance to succeed.

  4. DIY
    Engine Kit
    8 stroke
    DjuiinoStar Mini 4-Cylinder Diesel Engine Model (450+ Pieces Components, 3-5 Hours Assembly Time)...

    DIY Engines

    Visit the Store

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Product Description

Like many other family businesses, we started our small business at Houston Texas in 2016. We strive to give our customers interesting products with best services.

We mainly concentrated on designing and selling of physics toys. We believe Curiosity Is The Most Powerful Thing You Own and hope our products can deliver endless hours of delightful diversion to you.

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Mini Hot Air Stirling Engine

Driven by the little lamp, this engine will rotate at speed around 1700-2000 RPM. It's assembled and will run within 5 minutes after opening the package provided you have a bottle of alcohol by your side.

It is a MINI version which can be put into your pocket. A little bit smaller than a 330ml Coca-Cola can. But do not be confused by its size, its quality and performance are very good! We've done special treatment to the machine to avoid rusting and fading; use heat treated high grade spring steel stand to ensure its stability; employ thickened quartz glass cylinder and bearing steel rod to strengthen its robustness; specially designed Lever Mechanism and Crank-rocker Mechanism makes it more ”mechanical”. It will definitely be a great gift to those with mechanical brains. A great desktop toy for everyone.

Mr Robert Stirling

Mini

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Salute The First Industrial Revolution

Stirling Engine was originally conceived in 1816 by Robert Stirling as an industrial prime mover to rival the steam engine, its practical use was largely confined to low-power domestic applications for over a century. Robert Stirling is considered as one of the fathers of hot air engines.

MINI Version

It's a mini version Stirling engine. This cute little one can be easily placed into your pocket.

Easy Operation

It's ready to run. All you have to do is to take it out of the box and fill the lamp with 95% alcohol to heat the glass cylinder; then, after warming up for seconds, give the flywheel a spin and it will rotate rapidly and smoothly; besides, you can also assemble the free DIY set onto the flywheel to get the fan rotating. Just within 5 minutes, people around the machine will be surprised and wonder how it works. A great desktop toy, TONS OF FUN!

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Good Teach Tool

It’s also a perfect teaching tool demonstrating the process of energy exchange: the hot air in the sealed cylinder enables glass piston to move continuously, and flywheel will spin at the same time; periodical air expansion and contraction makes heat energy converted to mechanical energy... Kids will be excited and curious about why. This will enlighten them to explore the world.

Great Coversation Starter

it's a vivid model displaying basic principle of external combustion engines. People bought it for kids' science project, physics/mechanics learning, etc., enlightening them to explore more scientific knowledge. This engine is also a well-designed and crafted mechanical toy suitable for people of all ages from all works of life. It will definitely be a fantastic gift for those you love.

Buy Your Great Nephew Something Good

It's a good idea to send it as a gift to your families and friends; it's a very good gift for engineers, tech nerds, or anyone who has a child in his/her heart.

This engine is simply a piece of art. If you're hesitating about choosing which one to him/her as their first engine, try this one. You’ll not feel regretful on your decision.

It's also a perfect teaching tool demonstrating the process of energy exchange: the hot air in the sealed cylinder enables power piston to move continuously, and flywheel will spin at the same time; periodical air expansion and contraction makes heat energy converted to mechanical energy... Kids will be excited and curious about why. This will enlighten them to explore the world.

Features:

  • Model: DHA-BS-301
  • Status: Assembled
  • Speed: 1700-2000 RPM
  • Overall size: 3.98x1.81x2.36in(L/W/H)
  • Net Weight: 3.95oz

Packing List:

  1. Engine x1
  2. Lamp x1
  3. Pipette x1
  4. Spare tubes x2
  5. User manual x1

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
609 global ratings

Customers say

Customers like the quality, performance, fun, ease of use, and appearance of the toy. They mention that it's well constructed, works well, and is fun to play with. They appreciate the concise instructions and troubleshooting tips. Overall, customers are happy with the quality and functionality of the product.

AI-generated from the text of customer reviews

82 customers mention75 positive7 negative

Customers are satisfied with the quality of the toy engine. They mention it's an excellent item in workmanship and operation, well constructed, and fun little toy. They appreciate the thoughtful details and the generous spare parts provided by the manufacturer.

"Well made and well packaged. This was the least expensive Stirling Cycle engine I could find. It runs well and even had some spare glass parts...." Read more

"...Very nice quality construction for the price, and several thoughtful details such as the magnet under the glass alcohol jar to hold it in place, as..." Read more

"...Cheap, but not cheaply made...." Read more

"...What a Hit!.. The instructions were concise, The product is of the utmost quality and a joy to put together...." Read more

78 customers mention67 positive11 negative

Customers like the performance of the toy. For example, they say it works well, the engine works very well, and it runs smoothly. Some mention that the unit works flawlessly on 95% cooking alcohol and 91% rubbing alcohol.

"...This was the least expensive Stirling Cycle engine I could find. It runs well and even had some spare glass parts...." Read more

"...However it worked just great. Fun Kit." Read more

"A great working little Stirling model! Ran right out of the box with the simple addition of isopropyl alcohol...." Read more

"...Not exactly like a Swiss watch, but really runs great! I haven't measured the RPM's yet, but it does "cook", every time I've run it!........." Read more

46 customers mention46 positive0 negative

Customers find the toy fun to play with, watch, and teach mechanics, math, and science to children. They also say it offers amusement and wonder to children and adults alike. Customers also mention that the wick could be a little better.

"It's more than a toy, it's an educational device!..." Read more

"...Very nice quality construction for the price, and several thoughtful details such as the magnet under the glass alcohol jar to hold it in place, as..." Read more

"...by far one of the coolest things I’ve purchased and offers amusement and wonder to children and or adults alike...." Read more

"This was a present for my grandson. He loves it. It was easy to use, fun to watch but the glass must not be tempered." Read more

26 customers mention22 positive4 negative

Customers find the toy easy to use. They say the instructions are concise and informative. They mention that the kit is fully assembled and runs beautifully right out of the box.

"I fueled it up with denatured alcohol and it ran beautifully right out of the box, no adjustments or tinkering needed...." Read more

"The kit is fully assembled. Oiling the push rod helps to make it run smoother...." Read more

"...The instructions are very informative and have all the troubleshooting tips to make it easy to keep it in good working order...." Read more

"A great working little Stirling model! Ran right out of the box with the simple addition of isopropyl alcohol...." Read more

17 customers mention17 positive0 negative

Customers appreciate the cool design and eye appeal of the toy. They say it's a unique and thoughtfully put together model that displays the workings of an engine.

"...The first one I received as a gift and it looks like a piece of art as that it is made out of lathe and mill turned polished aluminum...." Read more

"This is a very nice and well made item that displays the workings of the Stirling hot air engine...." Read more

"This little model is fantastic. Perfectly packaged to protect from damage...." Read more

"Very thoughtfully put together! Comes with lots of additional parts to permit you to connect a fan or cogwheel (included!)..." Read more

17 customers mention17 positive0 negative

Customers find the value of the toy to be excellent, cheap, and well worth the price. They say it's the least expensive Stirling Cycle engine they could find that works like an expensive one. Customers also say it works great out of the box and is a wonderful little treat to own.

"Well made and well packaged. This was the least expensive Stirling Cycle engine I could find. It runs well and even had some spare glass parts...." Read more

"...It was cheap enough that I was comfortable taking it apart, sketching and photographing the parts to see how they fit, put it back together and..." Read more

"A great value for a great price.Plus, I ordered it on a Monday and I received it 4 days later on Friday...." Read more

"...definitely going to buy their other pieces just because this is worth every penny - no questions asked, hands down." Read more

16 customers mention16 positive0 negative

Customers are satisfied with the speed of the toy. They mention that it runs smoothly and at very high rpm. They also appreciate that the speed is easily controlled by adjusting the height and position of the flame. Customers also appreciate the engine's ability to rev up really fast on heat.

"...Good speed and it develops a good bit of power for such a small engine." Read more

"...It can spin a little faster and quieter if properly lubricated with some sort of vegetable oil...." Read more

"...Was already assembled too. Right from the box it ran fast and hard. I used it a lot the first day and it developed a problem with the cylinder...." Read more

"...the engine goes really fast and the extra science content is fun to experiment with!" Read more

10 customers mention10 positive0 negative

Customers are satisfied with the spare parts provided with the toy. They mention that it comes with a nice number of accessories and a little kit of attachments. Some customers are happy that it runs well and even has some spare glass parts.

"...It runs well and even had some spare glass parts. Great for teaching, or if you just like cool toys..." Read more

"...Good thing it comes with spare parts!I only had 91% Isopropyl Alcohol and it ran just fine...." Read more

"...assembly (not at all complicated), you’ll love the fact this comes with extra parts and the customer support is AMAZING...." Read more

"...Instructions were comprehensive, and it comes with extra glass tubes and rings in case you break it, and it comes with a little kit of attachments." Read more

Great little engine, fun for kids and adults
4 Stars
Great little engine, fun for kids and adults
Engine came assembled, needed to scan the QR code for some instructions on how to assemble the worm drive/fan that came with it. Used some magnets to help align everything but it worked as advertised! Used 3 in 1 oil but some zoom spout turbine oil would have been even better. Adjust the play between the worm gears and it works fine.
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Top reviews from the United States

Amazon Customer
5.0 out of 5 stars Really cute desktop toy!
Reviewed in the United States on October 31, 2023
Verified Purchase
Well made and well packaged. This was the least expensive Stirling Cycle engine I could find. It runs well and even had some spare glass parts. Great for teaching, or if you just like cool toys...
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Plant Person
5.0 out of 5 stars Solid little engine!
Reviewed in the United States on January 5, 2024
Verified Purchase
I fueled it up with denatured alcohol and it ran beautifully right out of the box, no adjustments or tinkering needed. Good speed and it develops a good bit of power for such a small engine.
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Lane Porter
4.0 out of 5 stars The sterling Engine is a great learning tool
Reviewed in the United States on January 31, 2024
Verified Purchase
The media could not be loaded.
 The kit is fully assembled. Oiling the push rod helps to make it run smoother. The wick holder is too small for the bottle and the wick to close to the Glass Globe. However it worked just great. Fun Kit.
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CPM169
5.0 out of 5 stars For Engineers, Young and Old
Reviewed in the United States on January 18, 2024
Verified Purchase
It's more than a toy, it's an educational device! From chemical potential energy to thermal energy to mechanical kinetic energy, you can easily see all the working parts and the engineering behind it. The key to success is the sealing ring around the Heat Tube. Any air escaping results in slower rotation. Something to consider if you want to tweak operating speed. Another bit of advice: keep your wick small. The first time I ran my engine the flame got too big and burned the rubber ring. Good thing it comes with spare parts!

I only had 91% Isopropyl Alcohol and it ran just fine. I also tried Ethanol which burns much hotter but is used up very quickly. The instructions are very informative and have all the troubleshooting tips to make it easy to keep it in good working order. I definitely recommend this little engine to anyone who has a curious mind.
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S Fox
5.0 out of 5 stars Thrilled my son
Reviewed in the United States on November 17, 2022
Verified Purchase
My 7-year-old son bought his with his own money. He basically spent his last penny on it, and he has no regrets. It works fine with little assembly or tweaking. It doesn't power the little fan that came with it very well, but that was a bonus anyway.

He's been asking me to light it for him multiple times per day. He created a makeshift display shelf out of cardboard so that he could display it in his bedroom. He carries it around as if it's his most precious possession.

I don't know what else is relevant. I've never seen him love an inanimate object more than he loves his sterling engine. He now asks me when he can get any one of fifty other types of mini engines that he sees online, so be prepared for that!
One person found this helpful
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Ed Martinez
5.0 out of 5 stars Fantastic little running engine!
Reviewed in the United States on December 26, 2018
Verified Purchase
A great working little Stirling model! Ran right out of the box with the simple addition of isopropyl alcohol. Very nice quality construction for the price, and several thoughtful details such as the magnet under the glass alcohol jar to hold it in place, as well as a couple of spare glass bulbs and the fan/belt kit.

As someone else mentioned, the flywheel is slightly wobbly but not enough to detract from the running model. Be sure to use +95% isopropyl as the lower grade stuff doesn't work as well. Also, don't heat the glass bulb with a butane lighter as I warped the bulb a little by doing that...

Really happy with my purchase, and I'm feeling inspired to build a larger model myself.
3 people found this helpful
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Syntheto
5.0 out of 5 stars Excellent entry-level hot air engine...
Reviewed in the United States on February 25, 2019
Verified Purchase
Oh, I love my little engine! I'm watching it run now... The vendor was/is excellent with their customer service. It was cheap enough that I was comfortable taking it apart, sketching and photographing the parts to see how they fit, put it back together and make an adjustment here and there to get it running again. I'm going to upgrade to another unit, probably by the summer, but I get a kick out of seeing this tiny little apparatus go clickety-clack... More expensive units have better balanced flywheels and crankshafts, and run an onboard dc generator that lights an LED.... With a little work, you can make a USB phone charger.... Although this one came with a plastic fan kit, I don't think it has the oomph and torque for a USB charger project... Great introduction into the hot air engine concept.... several friends bought one after they saw how much fun I was having.... did I mention that it's cheap? Cheap, but not cheaply made. Just don't expect too much out of it - you're not going to power your house off the grid with it, let's put it that way.
4 people found this helpful
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Robert Belilovsky
5.0 out of 5 stars Clever little demonstrator, great customer service!
Reviewed in the United States on January 26, 2021
Verified Purchase
The media could not be loaded.
 This thing is super tiny. I have lamp oil handy so that's what I filled the little bottle with. The bottle has a magnet on the bottom so the vibrations don't jostle it off the metal platform. The noise, it has to be said, is unpleasant.
It also doesn't provide much torque at all but that's expected.
The whole thing is about as long as my middle finger from knuckle to tip. And the hot bulb is closed from what I can tell, so it's a true stirling cycle engine.
Edit: mine broke on day 2 and Djuiinistar customer service sent a new one out to me, no questions asked, literally within a few minutes of my email letting them know about the issue. Absolutely stellar.
6 people found this helpful
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