rock and roll type rotomoulding machines

8/12/2019 Rock and Roll Type Rotomoulding Machines

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Rock and Roll Type Rotomoulding Machines

Also known as rotational molding, rotomoulding is a most economical molding process for

creating hollow items especially the large hollow items of plastic. When compared to other

molding processes like injection moulding and blow moulding the tooling or die cost of the

equipment is less in case of rotomoulding. The main purpose of using this rotational molding

process is to create consistency in wall thickness and density. Machines used for rotomoulding

generally consist of parts like molds, oven, cooling chamber and mold spindles. The molds are

used to create the item where as the oven to heat the item while rotating it and the coolingchamber is the place where the hot item is placed until it cools and the spindles are mounted to

rotate to provide a uniform coat of plastic inside each mold. Manufacturing such machines for

rotomoulding using advanced technologies is what N.A. Group of Companies, an ISO

9001:2000 certified rotomoulding machines manufacturer is expert at. With sound industrial

knowledge and good understanding of customer requirements it provides rotational moulding

machines like rock and roll rotomoulding machines, bi-axial rotomoulding machines and

ancillary equipments including pulveriser, mixer, extruder, scrap grinder & MS, SS and

aluminum die casting moulds for use in various industries.
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Rock and Roll Type Rotomoulding Machines:

Rock and roll rotomoulding machines are the specialized single arm machines which can rotate

up to 360 degrees in a direction and at the same time also rotate the mold 45 degrees in other

direction. These machines generally use forced hot air to heat up the mold and are the best

ones to cast large hollow parts having long length-to-width ratio. These are the ultimate heat

cost savers because of the small heating chambers that they contain. The rock and roll type

rotomoulding machines manufactured by N.A Group are the advanced machines available in

different frame sizes ranging from 1.5 x 2.5 meters to 3.5 x 7.0 meters to produce up to

10000USG capacity. Best to manufacture large hollow items especially pipes, boats up to 6.5

meters, these are the sturdy and most economical rotomoulders that can be adjusted to

different speeds for rocking and rolling for better control of the product. These machines are

also available in models of closed oven type rock and roll models with cooling station present in

it.


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Bi Axial Rotomoulding Machines:

In bi-axial rotomoulding machines the mold rotates on two perpendicular axes instead of single

axis. The mold is built on arms of the machine which rotates bi-axially in side the oven where

hot air circulates to melts the resin in side the mould. As the mould rotates the resin melts under

heat of the oven and spreads to walls of the moulds to the uniform thickness product. These

mould are then transferred to the cooling chambers where the mold cools and hardens to take a

perfect shape. These machines are available in models of fix oven type and moving oven type

models. At N.A Group, we manufacture bi-axial fix oven type rotomoulding machines and bi-

axial moving oven type rotomoulding machines having oven chamber size from 1.5 meters to

6.0 meters to produce up to 5000 USG capacity. These are the most advanced models having

independent 3 or 4 arms with 4 or 5 stations for better moulding.
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rock and roll type rotomoulding machines

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