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Help CenterRotomolding Rotational Machine Fuel Tank Mould for Car Bus Truck
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About Rotational Moulding
Rotational moulding, known also as rotomolding or rotocasting, is a process for manufacturing hollow plastic products. For certain types of liquid vinyls, the term slush molding is also used. Rotational molding has particular advantages in terms of relatively low levels of residual stresses and inexpensive molds. Rotational molding also has few competitors for the production of large (> 2 m3) hollow objects in one piece. Rotational molding is best known for the manufacture of tanks but it can also be used to make complex medical products, toys, leisure craft, and highly aesthetic point-of-sale products.
The principle of rotational molding of plastics is simple. Basically the process consists of introducing a known amount of plastic in powder, granular, or viscous liquid form into a hollow, shell-like mold.The mold is rotated and/ or rocked about two principal axes at relatively low speeds as it is heated so that the plastic enclosed in the mold adheres to, and forms a monolithic layer against, the mold surface. The mold rotation continues during the cooling phase so that the plastic retains its desired shape as it solidifies. When the plastic is sufficiently rigid, the cooling and mold rotation is stopped to allow the removal of the plastic product from the mold. At this stage, the cyclic process may be repeated. The basic steps of (a) mold charging, (b) mold heating, (c) mold cooling, and (d) part ejection are shown in Figure below.
Experiences for rotational molding
Jingcan have more than 10 years in rotomolding field，not only for molds, but also for machinery and products by rotational. Rich experience can help customer resort problem under producing
Quickly response
Will give response in 24 hours for after sale. Fastest as we can to creat value.
Free test
Rotomolding machines in factory can do free testing before shipping.
Low cost
The cost for rotomolding machine is much low than injection machine.
Top quality
The molds could be used even more than30,000 times to save cost.
Short lead time
We give strict lead time for customer.
1 Customer send the inquiry or details or the product sample
2 Engineer design
3 Communication and modification design draft
4 Confirm the design draw
5 CNC producing
6 Surface polishingandfinishing
7 Test
8 Customer confirm
9 Packing and shipping
1 50% payment as deposit before design
2 50% against BL copy.
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