blow moulding
custom plastic moulding
moulded plastic
moulding manufacturers
plastic
plastic blow moulding
plastic company
plastic design
plastic injection
plastic injection moulding
plastic manufacturer
plastic manufacturers
plastic manufacturing
plastic molding
plastic moulding
plastic moulding companies
plastic moulding company
plastic mouldings
plastic part
blow moulding
custom molding
custom moulding
custom plastic moulding
injection molded
molding
moldings
molds
moulded plastic
moulding machine
moulding manufacturers
mouldings
plastic
plastic blow moulding
plastic company
plastic design
plastic fabrication
plastic injection
plastic injection moulding
plastic manufacturer
plastic manufacturers
plastic manufacturing
plastic mold
plastic molding
plastic moulding
plastic moulding companies
plastic moulding company
plastic mouldings
plastic part
plastic parts
plastics
rotational design
rotational machine
rotational molding
roto machine
roto tank
roto tanks
rotomoulding machine
vacuum forming
above ground tanks
bins
blow moulding
boat seat
bollards
bulk bins
bulk food storage
c dax
concrete barriers
custom molding
custom moulding
custom plastic moulding
custom signs
diesel tanks
eco friendly products
eco products
feeding troughs
fiberglass tanks
fish tanks
food storage bins
freshwater
freshwater tanks
fuel tank
fuel tanks
furniture
garbage bins
garden furniture
garden troughs
gasoline tanks
grain bins
hoopers
hopper
hot water tanks
injection molded
kayaks
kitchen bins
lawn furniture
marine float
marine floats
marine storage
modern outdoor furniture
molding
moldings
molds
moulded plastic
moulding machine
moulding manufacturers
mouldings
oil tanks
outdoor furniture
outdoor furniture bench
outdoor furniture chair
outdoor furniture sets
outdoor lawn furniture
outdoor patio furniture
outdoor patio furniture sets
outdoor signs
patio furniture
plastic
plastic bins
plastic blow moulding
plastic company
plastic design
plastic fabrication
plastic food storage
plastic fuel tanks
plastic injection
plastic injection moulding
plastic manufacturer
plastic manufacturers
plastic manufacturing
plastic mold
plastic molding
plastic moulding
plastic moulding companies
plastic moulding company
plastic mouldings
plastic outdoor furniture
plastic part
plastic parts
plastic storage bins
plastic storage tank
plastics
polyethylene tanks
pontoon
pontoon boat
potable water tanks
rainwater
recycle bins
recycling bin
recycling bins
road barrier
road barriers
road signs
rotational design
rotational machine
rotational molding
roto machine
roto tank
roto tanks
rotomoulding machine
rubbish bins
salt water tanks
saltwater tanks
septic tanks
signs
stackable bins
stacking bins
stainless steel tanks
steel tanks
storage
storage bins
storage tank
storage tanks
sustainable design
sustainable materials
sustainable product
sustainable products
tanks
traffic safety
traffic signs
trash bins
troughs
vacuum forming
waste bins
water saving
water tank
wheelie bins
wheely bins

What is Rotational Moulding?

Rotational moulding is a highly versatile manufacturing process that allows for virtually unlimited design possibilities, and offers design advantages over other moulding processes, parts that are usually assembled from several pieces can be moulded as one. This reduces fabrication and assembly costs.

The process also has a number of inherent design strengths, such as consistent wall thickness and strong outside corners that are virtually stress free. If additional strength is required, reinforcing ribs can be designed into the part.

Rotational molding delivers the product the designer envisions. Together with designers the moulder can select the best material for the application, including materials that meet food contact, heavy metal free and other environmental and technical requirements. Additives to help make the part weather resistant, flame retardant, or static free can be specified.

Inserts, threads, handles, minor undercuts, flat surfaces that eliminate draft angles or fine surface detail can all be part of the design. Designers also have the option of multi-wall molding that can be either hollow or foam filled.

Cost advantages 

Rotational moulding is very cost-effective when compared to injection and blow moulding for both small and large parts.

Production costs for product conversions are reduced because lightweight plastics replace heavier, often more costly materials. This makes rotational moulding as cost effective for individual prototypes as for large production runs.

The rotational moulding process

The rotational moulding process is divided into 4 steps:


1. Loading 

2. Heating   3. Cooling 4. De-moulding 
 A mould is mounted on a mould carrier and charged with plastic powder.
 Under biaxial rotation the mould is heated until the powder is properly molten and forms a uniform layer on the inside of the mould.
Under continued rotation the mould is cooled until the melt is solid.
The mould is opened and the final product is removed from the mould.


For More information on what we can do to help you next product or project, please call:

Gary King

General Manager

Mouldings Unlimited Ltd

Ph – 06 326 8888

fax – 06 326 8840

cell - +64 21 246 0636

skype - gary.king81


© Copyright 2011 Mouldings Unlimited Website Design by Brandits