Rotomolding Case Sharing - Traffic Facilities

Traffic facilities are a key application field for the development of the Rotomolding industry, with its core products including:

1.Upper Three-Hole / Lower Three-Hole Water Barriers

2.Anti-Collision Barrels

3.Riot-Proof Water Barriers

4.Rotomolded Anti-Collision Islands

5.Warning Road Signs

6.Anti-Collision Piers

a) Fence Panels

Power Protection Barrels

It can be said that the vast majority of plastic traffic products can be produced through the rotomolding process, and this technology is gradually becoming a core choice in the field of traffic facility manufacturing.

Why has the market increasingly favored rotomolding over traditional blow molding in recent years? The key lies in the significant advantages of the rotomolding process:

01 Lower Equipment and Mold Development Costs

Compared with blow molding, the initial investment in Rotomolding Equipment and mold development costs are more controllable, making it particularly suitable for small-batch trial production and customized needs.

02 Capability to Mold More Complex Product Structures with Greater Design Flexibility

The rotomolding process does not require consideration of product demolding angle limitations. It can integrally mold traffic facilities with complex cavities and special-shaped structures (such as multi-hole water barriers and combined anti-collision islands), greatly reducing subsequent assembly processes.

03 Convenient Color Change and High Efficiency in Product Replacement Production

In Rotomolding Production, color switching does not require complex equipment cleaning processes. It can quickly realize the alternate production of products with different colors and specifications, meeting the diverse needs of orders.

04 Superior Physical Properties of Products: Deformation Resistance, Impact Resistance, and Puncture Resistance

Rotomolded products have uniform wall thickness and stable molecular structure. They are not prone to deformation or cracking in harsh outdoor environments (such as high temperatures, low temperatures, and impacts). Their puncture resistance is far superior to that of blow-molded products, and they have a longer service life.

05 Less Production Consumables and Low Scrap Waste Rate

The rotomolding process adopts an "on-demand feeding" mode, with raw material utilization rate reaching over 95%. There is almost no scrap generated during the production process, which not only reduces costs but also alleviates environmental pressure.

06 Controllable Product Wall Thickness to Adapt to Different Load-Bearing Requirements

According to the actual application scenarios of traffic facilities (such as lightweight warning road signs and heavy-duty anti-collision piers), the product wall thickness can be accurately adjusted to optimize the amount of raw materials while ensuring performance.

07 ...... 

Of course, the rotomolding process also has an obvious disadvantage - relatively low production output. To address this pain point, we have achieved a significant increase in output through technical optimization and process improvement. The specific measures are as follows:

01 Equipment Selection: Introduction of Assembly Line Production Equipment

High-efficiency equipment such as tower-rotary rotomolding machines is selected to build a continuous production process. Taking the tower-rotary rotomolding machine as an example, the equipment is equipped with 3-4 rotating arms, which can simultaneously complete the processes of "feeding into the oven for heating - cooling and shaping - mold disassembly and assembly": when the No.1 rotating arm is heated in the oven, the No.2 rotating arm is cooled, and the No.3 rotating arm is used for mold disassembly and assembly at the same time. This realizes the seamless connection of production links and greatly shortens the production cycle of a single batch. 

02 Mold Design: Optimizing Structure to Improve Efficiency

● Adoption of quick-latch opening and closing molds: Replacing the traditional bolt fixing method, the mold opening and closing time is reduced by more than 50%, significantly improving the mold change efficiency;

● Synchronous production with multiple mold bases: A single rotating arm can be equipped with 4-6 sets of molds. With the heating of the same furnace body, 4-6 sets of products can be produced at one time, increasing the output per unit time by 3-5 times;

● Integrated mold base design: Realizing the one-time synchronous disassembly and assembly of multiple sets of molds, reducing manual operation steps and lowering the error rate.

Through the above technical improvements, many large domestic traffic facility manufacturers have now adopted our rotomolding equipment and solutions to achieve mass production! Rising Sun Rotomolding is also continuously iterating its technology and improving its services, committed to providing customers with more efficient and high-quality rotomolding solutions, helping the upgrading and development of the traffic facility industry, and looking forward to bringing you a brand-new production experience!