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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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4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Comfortable shoes with accurate sizing
Size: 10, Color: Black Leather
The Clarks Men’s Tilden Cap are very good shoes. They look elegant and are comfortable for daily wear or more formal occasions.
One thing I appreciated is that the size chart is accurate and consistent, so the fit was exactly as expected. This makes it much easier to order the correct size online.
Overall, good quality, comfortable, and reliable sizing. A solid choice if you’re looking for classic dress shoes.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Price And Comfort Conscious? Buy These!
Size: 10.5, Color: Black Leather
For the price, these are a great value. Super comfortable. I was looking for a shoe I could wear all day. Usually, this means you need rubber soles (no wood). You can't resole many one-piece rubber sole heels, but that's fine. Rarely do I do that since the top of the shoe shows so much wear, it makes me want to get a new pair of shoes no matter how much shoe-shining I do.
I own Saks 5th Avenue brand shoes, Cole Haan, and many other pricey shoes. Sure these Clark's don't look as sharp as Italian-made shoes. But Clark's are comfortable. With this particular shoe, they struck the right balance between fashionable and functional--a rare feat indeed!
My feet are normal width (D). Half my shoes are 11, the other 10.5. I got these in 10.5 and they fit fine. The toe box is only slightly snug, but I'm hoping they will stretch out in a month or so. I probably should have done 11's. If you are in the middle like me, err on a half size larger. I had a chance to try these on at a store (hesitated to buy at first). The toe box is long and the 11 seemed kind of big, so I went down a notch. In hindsight, 11 was the right size.
I couple things I could do without are the side slits that have elastic. They are minimal though. And at the end of the day, you probably don't need to untie your shoes to kick these off, but I don't recommend that. I was also not crazy about the inner lining. It kind of looks like pleather, to be totally honest. Either that or it's super thin and shiny leather. They have a cheap look to them on the inside, but who cares because you don't see them.
Overall, great shoes. Way to go Clark! These ones are winners and they look great with suit pants or nice jeans.
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Reviewed in the United States on August 19, 2017
★★★★★ 4
Good quality
Size: 13, Color: Black Leather, Size: 13, Color: Black Leather
These fit true to size in length but like any cap toe Oxford, you will have a lil more space at the tip. The width is a little narrow for regular feet but still fit properly. If you have wide feet definitely go with the wide option. The leather feels nice and soft. They are fairly comfortable. I even compared them to cap toe Nunn Bush shoes I have and they’re more comfy. The front of the shoe/tongue doesn’t dig into my ankle like the Nunn Bush pair does.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Good deal
Size: 8.5, Color: Black Leather
Honestly for the price there hard to beat. They look nice and are comfortable indeed, I like the silent step "non clackers" . For the size I'll recommend your normal size as they have a built in stretch part for extra comfort unless you know you have wide feet then go for the W, my 8 1/2 (non wide) fit perfectly without an issue. I'm just surprised that they came not in a box, there wrapped up well though didn't come damaged. For fancy shoes that don't come in a box there pretty good. 👍
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Reviewed in the United States on May 13, 2026
★★★★★ 5
The perfect work shoe
Size: 13, Color: Black Leather
I wear dress shoes everyday and I’m on my feet a lot. My wife is the same way and would always praise Clarks, but I didn’t think much of it. I’d always get Nunn Bush or something like that, but they weren’t comfortable or last very long. I happened to be at a Clarks store that was closing one time and picked up a pair of these and boy did everything change that day. Not only are they comfortable they last a long time. I get about one pair a year. That doesn’t mean they only last a year, I just try to keep a nice looking pair. I can wear them all day and my feet don’t hurt. And you get all the comfort without the bulkiness of other comfort footwear companies. They fit nice and don’t pinch or rub anywhere. They are definitely worth the full price, but they go on sale regularly to an even better deal so keep an eye out.
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Reviewed in the United States on June 12, 2024
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