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Description
stirlingkit Full Metal Stirling Engine Model Mini Generator Model Steam Science Educational Engine Toystirlingkit Full Metal Stirling Engine Model Mini Generator Model Steam Science Educational Engine Toy Features: . This Stirling engine model adopts T shaped rocker crank structure, which has the characteristics of high power and high speed; the moving parts of the whole machine are inlaid with rolling bearings, and the friction coefficient is low; the cylinder piston is precision ground with SUJ 2 alloy steel, with clearance Precision, high hardness
stirlingkit Full Metal Stirling Engine Model Mini Generator Model Steam Science Educational Engine ToyFeatures:
.This Stirling engine model adopts T-shaped rocker crank α structure, which has the characteristics of high power and high speed; the moving parts of the whole machine are inlaid with rolling bearings, and the friction coefficient is low; the cylinder piston is precision ground with SUJ-2 alloy steel, with clearance Precision, high hardness and good wear resistance; the overall connection is fixed by screws, all connection parts are sealed by copper pads, and the performance is reliable and high temperature resistance; high-density aluminum alloy heat sink, higher heat exchange rate; base with double-layer spring shock absorption, Smoother operation; all-metal material, ultra-small size, compact structure, high reliability
.Industrial-grade processing level, creating an all-metal exquisite model, unique and innovative, is a novel fashion gift and collectible; the whole machine is assembled by more than 150 small parts, including 12 rolling bearings, 30 stainless steel bolts, etc .; the appearance parts are made of 6061 Sandblasted and oxidized surface of CNC aluminum alloy after processing
.Instructions for Use and Maintenance: (1) Before use, dial the flywheel to check whether it rotates smoothly, if there is excessive resistance, check if the cylinder is blocked by sludge, and if necessary, remove the cylinder assembly and wipe the piston and cylinder with alcohol. And apply graphite lubricant on the surface of the piston; (2) Inject 95% alcohol into the alcohol lamp (capacity is less than two-thirds), then ignite the alcohol lamp and place it under the heating cylinder to heat for 40 seconds (the flame should be in the heating zone as much as possible) , At last you can rotate the flywheel at high speed
.Note: (1) The heating source will cause the body to generate high temperature during operation. Do not touch the high temperature parts such as the heating cylinder and heat sink, otherwise it will cause thermal burns; (2) Use only ordinary alcohol lamp heat sources, and do not use windproof lighters. And other high-temperature dark fire heaters (above 500 ° C), otherwise it will cause damage to the piston cylinder at high temperature and high speed operation; (3) Do not apply any lubricating liquid grease to the piston cylinder, otherwise it will cause excessive resistance and fail to work; (4) The machine has a starting compression force. It is recommended that novices use the engine base to start for the first time use, which is easier to control.
.Product Parameters: Overall Machine: length 108(L) x 70(W) x 78(H)mm; Number of Cylinders: 2; Bore Diameter x Stroke: 10mm x 10mm; Speed: 3700-4000 rpm; Flywheel Diameter: 36mm
.Significance and Value of Use: The product can be used as a decoration with collectible value. The principle of the Stirling engine model is intuitive. It can be used as an educational toy to help develop children's interest in learning. It can also be used as a teaching experiment device for classroom use. , Simple and convenient, entertaining and fun, through the hands-on operation, a more intuitive understanding of the principles of the Stirling engine model
.For Age: 8 years old and above
Specifications:
.Color: As Shown
.Material: Metal
.Product Dimensions: 10.8 x 7 x 7.8cm
.Product Weight: 430g
.Package Dimensions: 13 x 9 x 10cm
.Package Weight: 480g
.Packing: Carton Box
Package Content:
.1 x Stirling Engine Model
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4.7 ★★★★★
Based on 1099 reviews
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Product Reviews
★★★★★ 3
I guess the smell is offputting
Size: 2-pack, Style: Duo
My dog loves chocolate stuff. But for some reason, wasn’t a huge fan of these balls. She played with them a little bit, but they’re not her favorite.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Picky dog approved!
Color: S6-muti-color, Color: S6-muti-color
I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!!
Seem to work fine in the ChuckIt.
As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣
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Reviewed in the United States on February 2, 2025
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Durable
Color: S6-muti-color
The balls are great for chewers. The squeaky didn’t last long but they are perfect for the ball launcher.
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Reviewed in the United States on May 18, 2026
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving.
In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there.
The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
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Reviewed in the United States on November 2, 2024
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