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Roto Moulder Manufacturers and Companies

IQS Directory implements a thorough list of roto moulder companies and suppliers. Utilize our listing to examine and sort top roto moulder companies with previews of ads and detailed descriptions of each product. Any roto moulder company can design, engineer, and manufacture roto moulders to meet your companies specific qualifications. An easy connection to reach roto moulder companies through our fast request for quote form is provided on our website. The company information includes website links, company profile, locations, phone, product videos and product information. Customer reviews are available and product specific news articles. This source is right for you whether it's for a manufacturer of rotomoulding materials, insulated roto molded, and roto molded compost tumblers.

  • Orange, CA 877-768-6585

    As a full-service rotational molding company, Roto Dynamics is your source for high quality, custom rotomolded products. Since our inception, we have continued to earn success by closely working with our customers, developing innovative and tailored solutions. We are with you every step of the way, from design and development to production and assembly. For a complete view of our capabilities and services, check out our website, or submit a request for quote to see how we can serve you!

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  • Richmond, BC 604-271-1324

    Molded plastic tanks are one of the items that Century Plastics Ltd. manufactures. We offer water tanks, bins, and totes for storage and merchandising. Our vertical poly tanks range from 5 gallons - 2400 gallons and are used for battery boxes, recycling bins, potable water tanks and more.

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  • Elberfeld, IN 888-930-3455

    We provide outstanding custom plastic rotational molding. Our teams offer short lead times and we will assist you from concept to production. All of our materials and designs are FDA approved and we can handle the most complex projects. We are your one stop shop for all of your rotational molding needs. Give us a call today to learn more information!

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  • Pearland, TX 281-648-0909

    Our innovative roto moulders and technology offer a uniform construction. All our products go through extensive testing, so you know you are getting the highest quality product. Sherman Roto’s location near the gulf coast gives us a cutting edge advantage because of the region’s petroleum refining center.

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  • Alliance, OH 330-821-4700

    For over 50 years, Trilogy Plastics has specialized in rotationally molded plastics and other forms of rotational molding. Let our experienced staff of rotomolders create a plastic part solution for you. We are committed to finding innovative solutions to your rotational molding needs.

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businessIndustry Information

Roto Moulders

Roto moulders are large machines that economically fabricate many different seamless, single part plastic products. They use a combination of high heat, rotation and metal moulds to create plastic constructions that may be as small as a water bottle and or the size of a large storage tank. Rotomoulding is an alternative to thermoforming, blow molding and injection molding, and although it is lower in cost, this process is not as common because of the complex and large machinery required for the fabrication process.

Roto moulders produce many different parts and products for the food and beverage processing, medical, pharmaceutical, waste management, marine, sporting goods, recreation, toy, packaging, materials handling, automotive, plumbing and construction industries. They are composed of a series of moulds, an oven, a cooling chamber and large mould spindles that are mounted on a rotating axis. The roto molding process begins with the fabrication of the mould, which is made either of stainless steel or aluminum. Depending on the complexity, they are either welded or die cast. Aluminum moulds are thicker, since it is a softer metal. The polymer resin, in the form of fine powder, is poured into the mould. The spindles begin rotating in two directions into the oven chamber. Under high heat, the plastic melts and evenly coats the inside walls of the mould. To cure, the moulds are then taken to a cooling chamber.

There are several different types of roto moulders, and they include rock and roll, clamshell, vertical rotational, shuttle and carousel machines. Rock and roll machines are composed of an arm that holds a large mould. Clamshell machines are also single-arm configurations and are considered small. Vertical rotational machines are energy efficient and can fit into compact heating and cooling chambers. Shuttle machines move the moulds from different heating and cooling areas. They can fabricate large numbers of products at once, but require a lot of operating space. Finally, carousel machines, which are the most common type, have several arms that can be in the heating or cooling chambers simultaneously. The cooling process takes about 20 minutes. Once the plastic has cured, the newly formed product is unloaded manually, which can be difficult if the plastic has shrunk during the process. Parts that emerge from roto moulders, if they are intended to have holes or openings, must be sent for additional processing like cutting and surface finishing. 

More Roto Moulders Information

Roto Moulders
Roto Moulders
Roto Moulders - Sherman Roto Tank
Roto Moulders - Sherman Roto Tank



Roto Moulder Informational Video