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Description
Mini V4 Brass Steam Engine Model Reverse Gearbox (without Boiler)Mini V4 Steam Engine Model with Reverse Gearbox (without Boiler) Features: . Exquisite Appearance: The model of the steam engine is small and novel. It can be placed in the palm of your hand like a treasure. It is exquisite and mini. . Steam Engine Structure: Piston slide valve. . Reversing Structure: Forward and reverse two gears, automobile hand wave structure, often meshing fork gear. Miniature stainless steel crankshaft, with bearings at both
Mini V4-Steam Engine Model with Reverse Gearbox (without Boiler)Features:
.Exquisite Appearance: The model of the steam engine is small and novel. It can be placed in the palm of your hand like a treasure. It is exquisite and mini.
.Steam Engine Structure: Piston slide valve.
.Reversing Structure: Forward and reverse two gears, automobile hand wave structure, often meshing fork gear. Miniature stainless steel crankshaft, with bearings at both ends, gearbox gears also fixed with bearings, brass gear transmission, shift fork clutch
.Instructions for Use: This steam engine model is small in size, low in power consumption, and high in thermal / dynamic conversion efficiency. It is an efficient power option in the case of small model space and low boiler (50 * 100mm diameter) power.
.Please connect the boiler by yourself (boiler is not included), add steam cylinder oil to lubricate all parts, connect φ4mm copper pipe, pressure between 2-4, open the steam valve
.Simple and Convenient Maintenance: Fully consider the player's use and maintenance issues, designed as a detachable structure, easy maintenance and replacement of parts
.Significance and Value: By operating the steam engine model, you can learn the operating principle of steam more intuitively. At the same time, this model is a collectible with collectible meaning. Can also be used for steam ship models, car models, small generators, etc.
.For Age: 14 years and older
Specifications:
.Color: As Shown
.Material: Metal
.Weight: 320g
.Dimensions: 115 x 95 x 80mm
.Cylinders: 4 Cylinders
.Bore x Stroke: 8mm x 8mm
.Valve Gears: Walschaerts
.Pressure: 3kg/cm²
.Temperature:50~120℃
.Lubricator: Screw-cap-type
.Axle: φ3mm
.Gearratio: 1:1(36:36)
.Base Fixing Hole: Ø315 x 25mm
.Product Dimensions: 12 x 8.5 x 10cm
.Product Weight: 320g
.Package Dimensions: 15 x 12 x 12cm
.Package Weight: 400g
.Packing: Box
Package Content:
.1Set x Mini V4-Steam Engine
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Boy Shorts for comfort, stretch and just enough firmness ( but not too much.)
Color: (3 Pack) Black, Size: X-Large
Finally a perfect boy short in every way! I have ordered and returned so many boy short brands up to now. SHARICCA BoyShorts Panties are comfortable, soft, stretchy and the perfect length for me. I wear an XL and am 5’5”. I just reordered the 6 pack and these will be my go to for underwear! Thank you customers for your reviews which helped me decide to try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
Very comfortable, right length
Size: Large, Color: Black,grey
This product arrived as described. I like the trunk length, not the boxer brief length. They are comfortable. Hold up well when worn and washed. I don't seem to sweat as much. These were ordered to replace ones ordered about 2-3 years ago due loss of weight, had to down size. The waist band doesn't roll as like other brands.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Perfect fit !
Size: Large, Color: Cerise,orange,yellow,light Blue
Most comfortable underwear I’ve had in awhile, soft, great length, can wear all day without adjusting all the time. I purchased a Large, I’m 6’3, 205 pounds, athletic build.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 4
Nice briefs, worth the price
Size: Medium, Color: White
Briefs feel nice and I love the feel of cotton. Unfortunately they are missing a slot in the crotch that is usually present in these types of briefs.
Size is matching, soft to the touch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Smooth
Size: Medium, Color: White
Fit is good. Material good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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