the home of the wormery
composters
rotational moulding
We manufacture our Rotol and Garden King composters by the process of rotational moulding rather than the more common technologies of either injection moulding or blow moulding.This yields two main types of benefit, viz: environmental and product quality.Rotational moulding is a slow gentle process. A measured charge of plastic powder (100% recycled) is introduced into the mould. The mould then rotates at about 5 rpm and gently rocks up and down whilst being heated. Powder particles adhere to the mould and other particles to them in a slow even process. The mould is then cooled, the plastic contracts and the composter and/or lid removed. Each cycle takes approximately half an hour.With 12 dedicated machines and a shift production system we can produce upwards of 200,000 composters pa. New moulds and machines can easily and speedily be added to rapidly meet additional demand.Features and Benefits of Rotational Moulding
| Feature | Result | Benefit |
| Slow gentle process | Even spread of plastic No weak points No stress or tension in the product |
Longer working life Perfect lid fit Easy slide doors/hatches |
| Individually made & handled | Better quality control | Only good products get despatched to customers |
| Low energy input | Less environmental damage Zero noxious fumes |
A better environment for everyone |
| Labour intensive | Attention to detail | A better end product and employment opportunities |
We offer an industry unique 12-year product warranty. In the case of Rotols, we know of numerous examples of composters in use after 25+ years. Overall, Rotational Moulding is an energy-efficient, less environmentally damaging process, which produces higher quality products with a longer life.