Product Name: Roller
Product Code: J0601
Size: 180*130*50mm
Weight: 110g
Material: Plastic parts + metal parts + motor assembly
Packing: 150 pcs
Box Specification: 600*500*450mm

Scientific Enlightenment:

The roller belongs to the category of road equipment in construction machinery and is widely used in large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and sports stadiums for filling and compaction operations. It can be used to compaction sand, semi-cohesive, and cohesive soils, roadbed stable soils, and asphalt concrete pavement layers.
The rollers are divided into three-wheel and two-wheel types. The front wheel of the three-wheel roller is small and wide, and the two rear wheels are large and narrow. The front and rear rollers of the two-wheel roller are the same in size and shape. Both front and rear of the roller are equipped with heavy cylindrical rolling wheels, with large horsepower, high height, and slow speed. It is mainly composed of the chassis, rolling wheels, engine, and power transmission mechanism, etc. Let's make one together below!

Science Project:

1. Prepare the necessary materials for the experiment, including paper discs, motors, wheels, mainboards, double-sided tape, axles, wrenches, battery boxes, screws, positioning pieces, and supports, etc.
Step 2: Install the components in sequence according to the instructions.
3, Install and debugging.

Scientific Principles:

The principle of converting electrical energy into mechanical energy.

Scientific Exploration:

What is the principle of a roller compactor?
2. What scientific facts have you learned by assembling a roller?
3, What is the difference between a road roller in real life and one that you make yourself?

Zhejiang Jianyi Education Technology Co., Ltd.
Zhejiang Jianyi Education Technology Co., Ltd. (formerly Yifei Toy Factory)Established in 2007, the current brand is "XING TEACHER" and "JIAN YI". Over the past 10 years, our company has made unremitting efforts to make the enterprise gradually mature. Our company is a member of the Teaching Equipment Industry Association of the Ministry of Education, and is a leading enterprise in Zhejiang Province. The company has been awarded the "Heavy Contract and Credit-Keeping" unit for three consecutive years by Jinhua City. In 2014, it was awarded the "Advanced Collective of Jinhua Teaching Instrument Industry" by Zhejiang Province.
Zhejiang Jianyi Education Technology Co., Ltd. is a high-tech enterprise that integrates modern scientific research and development of educational equipment, curriculum design, teaching resource integration, and technical services. Zhejiang Jianyi Education Technology Co., Ltd., with high-tech products and modern educational equipment, has established itself in the education industry. Our products are sold all over the country and have been exported to Europe, America, Japan, and South Korea. After years of accumulation, the company has begun to take shape. In terms of technological innovation, the company has professional design personnel engaged in the research and development of complete sets of educational products and the upgrade of existing products; in production, management, and installation services, the company strictly implements the ISO9001 international quality assurance system standards; in marketing, the "Xing Teacher" products have been introduced into many provinces and cities in the country and enjoy a good reputation; for many years, it has provided high-quality, advanced, professional series of modern teaching equipment and professional equipment research and development custom services for the education industry. With excellent, high-quality professionals and perfect after-sales service quality, the company has established a good corporate image.Xing teacher's" series of science and education physics, chemistry, photovoltaic, wind energy, geography, biology, art, and so on, has successfully won bids in the education bureau tenders multiple times. Zhejiang Jianyi Education Technology Co., Ltd. continues to adhere to the business philosophy of "quality first, service to diligence, honesty in character," and upholds the "Xing teacher" culture, casts the "Xing teacher" brand, and creates the development policy of the "Xing teacher" career. We provide excellent equipment and high-quality services for school teaching and scientific research. We are willing to cooperate sincerely with new and old friends at home and abroad, work together, and devote our efforts to education and education.

  Before assembling, please check if the circuit is unblocked and all the components are complete. Ensure that all contact points are in good contact. During the assembly process, be careful not to get glue on your clothes or skin. Keep the parts out of reach of younger siblings to prevent them from swallowing them by mistake! Do not play with them on your head, to avoid the model falling and injuring you!