Rotational molding’s working principle is to put the powder resin into the cold mold, rotate and heat the mold at the same time, so that the powder resin will melt and apply to the entire mold cavity evenly. Finally, cool down the mold and then get the molded products. Common products made by rotational molding process include: Containers, Shield Covers, Lighting Shells, Furniture, Plastic Boat, Sporting Equipment, Bath, Public Toilet, Telephone Booth, Children Playground Equipment, Advertisement Show Board, Water Float, and so on. Maxtech custom rotational molded products based on client’s unique design, we can also improve the design to reduce the cost and better fit the using purpose.
Characteristic for Rotational Molding Process:
1. Low mold cost: for one same product, rotational mold cost will only be 1/4 or 1/3 of injection mold cost.
2. Better strength at the edges of rotational molded parts. It can give a 5mm thickness at the edges, this will solve the weak edge problem of hollow products completely.
3. Large scale of wall-thickness, can be as thin as 2mm to as thick as 16mm.
4. Can molded in large size products, almost no upper limits in size.
5. Can molded complex shapes which cannot be made by other plastic molding processes.
6. Rotational molding can make completely enclosed products.
7. Foaming can be added into the rotational molded parts to reach thermal insulation purpose.
8. Even wall-thickness, no wasted flash materials, seamless.
Applications for Rotational Molding Process:
1. Containers: water tanks, oil tanks, transportation containers, dumpsters, shield covers, chemical tanks, reaction tanks.
2. Automobile industry: automobile fittings, air-conditioning pipes, back of chairs, armrests.
3. Sports equipment: snowboards, yachts, water float balls, bicycle seats, surfboards, boats, buoys, dock bumpers.
4. Children toys: children slides, desks and chairs, climbing wall, soft playgrounds.
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| Design & Engineering Service | Mold Manufacturing |
Large/small volume Production |
Secondary Operation |
Equipment & Production
we have swing rotational machine for small parts, centrifugal roller rotational machine for round parts, and shuttle rolling rotational machine for big complex products.
Advantages Of Rotational Molding
1. Rotational Molding Lowers Weight and Increases Part Strength
Our experienced rotomolding professionals specialize in converting parts or products made from metal, fiberglass, wood or other materials into complete, fully integrated, rotationally molded plastic designs. Let our engineers show you how converting your manufacturing to plastic rotomolding from other materials can assist in reducing your product or part’s weight, increasing its strength and lowering its manufacturing cost.
2. Rotational Molding Lowers Initial Tooling Costs
Because rotational molding tooling costs approximately 20% to 80% less than the cost of comparable injection mold or blow mold tooling, it is also a preferred, more cost effective method for producing parts in limited quantities. This low initial cost minimizes the risk in bringing new products to market and often makes producing small quantities more cost-effective.
3. Rotational Molding Lower Part Count & Reduces Costs
One of the biggest advantages of rotational molding is that multiple small parts can often be replaced with just one (or a few) bigger parts. Eliminating the need for several small parts not only lowers your cost by reducing your parts count, but also eliminates the cost of the fasteners, adhesives and labor needed for assembling small parts. As the cost of assembling fabricated parts rises across the country, less assembly means greater cost savings for you.
4. Rotational Molding Reduces Lead Time
Rotomolding can also substantially shorten your product’s lead time because of the faster speed of tooling fabrication. Our skilled engineers and experienced rotational molding professionals can often bring a new product from concept to market in as little as four to eight weeks.
5. Rotational Molding Allows Increased Part Complexity
Rotational molding is also ideal for manufacturing complex parts or products that require hollow sections, double or multiple walls, or foam filling and/or hollow. And, because the rotational molding process is weld-free, there are no “seams” to compromise durability or appearance.
6. We Are Expert US Plastic Part Rotational Molders
Our state-of-the-art equipment – and our years of rotational molding experience – ensure that your plastic parts will always be manufactured to your exact specifications. We confidently guarantee the highest quality of rotational molding plastic products – at the best prices.
Industries Served By CMS
| Tanks | |
| Septic tanks Oil tanks Water treatment tanks |
Chemical storage tanks Fuel tanks Shipping tanks |
| Transportation | |
| Door armrests Traffic signs/barriers Fuel tanks Bull bars Audio housing units |
Instrument panels Ducting Wheel arches Mobility vehicles for the disabled Supermarket trolleys |
| Containers | |
| Reusable shipping containers IBC's Drums/barrels |
Planters Airline containers Refrigerated boxes |
| Toys and Leisure | |
| Playhouses Bals Ride-on-toys |
Outdoor furniture Hobby horses Dollheads and body parts |
| Materials Handling | |
| Pallets Trash cans |
Fish bins packaging |
| Marine Industry | |
| Dock floats Pool liners Docking fenders |
Leisure craft/boats Kayaks Life belts |
| Medical Products | |
| Face oxyen masks Paramedic cases |
Stretchers Medical specimen cases |
| Industrial Products | |
| Floor polishers Water filtration units |
Blower housing Recycling units |
| Miscellaneous | |
| Manhole covers Housings for cleaning equipment Point of sale advertising |
Tool boxes Dental chairs Agricultural/garden equipment |
Secondary Operations
1. Welding includes Ultrasonic Welding, Vibration Welding, Laser Welding;
2. Printing includes Hot Stamping/Decal, Silk-Screen Printing, Tempo Printing, Laser Engraving, Label Application;
3. Painting and texture;
4. Assembly with other fittings;
5. Customized packaging;
6. Provide certification like RoHS, Reach, CE...
Plastic Rotomolding Parts
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