Vacuum Stirling Tractor Engine Aluminum Alloy Model Toy Children Science Education

Specification Item Name Vacuum Stirling Tractor ModelWeight 1 2KGSize 22 11 12 cmPacking size 29 17 19 cmEngine no load speed range 500 2500r minFuel absolute ethanol or 95 medical alcoholSteering mode steering wheel manualMain material aluminum alloy brass stainless steel Surface treatment anodizingCylinder Lubricating Oil Advanced Sewing Machine Oil or 10 Industrial White OilLubricating oil filling method dripping oil filling port Transmission mode belt gear combinationSpeed ​​change mode two speed D N shift lever backwards to neutral forward forwardFeatures The product is made of aluminum alloy CNC in a large area and the texture and quality are well guaranteed The overall appearance adopts this year s popular retro style design with the retro tractor shape combined with the vacuum absorbing Stirling machine as the power the appearance and the engine sound in the start are more realistic to restore the characteristics of retro machinery Four rounds use the red tomahawk wheel aluminum alloy CNC carved The modular design of the whole machine is divided into three major assemblies front axle power and rear axle totaling 90 parts all of which are machined and manufactured instead of open mold to ensure the model texture Assembled with stainless steel screws 100 the gearbox is the first manual full copper gearbox in China with tight mechanism and precise machining A good restore of the principle of the real manual transmission and the feel