HWAMDA
Household plastic products
Housewares are high-volume, price-sensitive products where appearance, color and cost per part decide success in the market. Product lines change often, so producers need machines that handle a wide range of molds efficiently.
- Basins and household buckets
- Round and oval basins, water buckets and pails, typically in PP or HDPE.
- Storage boxes and containers
- Storage boxes with lids, drawers, laundry baskets and organizers, often transparent or colored PP.
- Chairs, stools and tables
- Stackable chairs, stools and table tops, which are large, heavy parts with big molds.
- Hangers and small items
- Clothes hangers, hooks, clips and bathroom accessories in multi-cavity molds.
- Kitchenware
- Cutting boards, colanders, food storage, cups, trays and utensils, often in food-contact PP.
Materials
| Material | Typical products | Notes |
|---|---|---|
| PP homopolymer and copolymer | Basins, buckets, boxes, chairs, kitchenware | Most widely used; clarified PP for transparent boxes |
| HDPE | Buckets, basins, cutting boards | Tough and chemical resistant |
| PS / HIPS | Hangers, trays, small items | Rigid, glossy, easy flow |
| ABS | Appliance parts, premium housewares | Good surface quality and stiffness |
| Recycled PP / PE | Basins, buckets, outdoor furniture | Common for cost reduction; color and filtration control |
Process challenges
- Appearance
- Gloss, flow marks, weld lines and color streaks are visible on housewares. Stable melt temperature and good color dosing are essential.
- Warpage on large flat parts
- Table tops, box lids and chair seats warp without balanced cooling and holding pressure.
- Cycle time and cost
- Margins are thin, so fast dry cycles, efficient cooling and low energy per part matter.
- Frequent mold changes
- Many molds per machine means mold-change time, platen size and opening stroke flexibility affect productivity.
- Large furniture molds
- Chairs and tables use heavy, deep molds that need large tie-bar spacing, long stroke and high shot weight.
Typical configurations
Most household products run on the general-purpose M8SII servo-hydraulic series, which covers 25 models from HMD90 to HMD3300M8-SII. Several injection unit sizes per model let the shot capacity follow the product rather than the clamping force alone. Large chairs, tables and big storage boxes, where mold size drives the selection, are a good fit for the DU II two-platen series with its large mold space and long opening stroke.
| Product group | Typical series | Selection driver |
|---|---|---|
| Hangers, clips, small kitchenware | Small M8SII models | Cavity count and cycle |
| Basins, buckets, storage boxes | Mid-size M8SII models | Part weight and mold depth |
| Large storage boxes, laundry baskets | Large M8SII models | Mold size and opening stroke |
| Chairs, tables, large furniture | Large M8SII or DU II two-platen | Mold envelope and shot weight |
Production cell equipment
Housewares plants usually add vacuum loaders with color dosing for frequent color changes, chillers and mold temperature controllers, and granulators beside the machine to recycle runners and rejects. Take-out robots are common on large parts such as chairs and boxes, where manual removal limits the cycle and risks damage. Plants with many machines often move to central conveying.
Planning a product range
Housewares producers often run five to twenty molds on a single machine through the year. When choosing the machine, check the largest mold against tie-bar spacing, minimum and maximum mold thickness and opening stroke, and the heaviest part against the shot weight of the selected injection unit. The smallest mold must still be supported by enough platen area. Choosing the injection unit option carefully avoids running small parts with a very large screw, which reduces control accuracy and lengthens material residence time.
How to start
Send product drawings, photos or samples, part weight, material, mold dimensions if available and your output target. If you plan a product range on one machine, list the largest and smallest molds so the machine covers both.
FAQ
Frequently asked questions
Which machine is best for a plastic chair?
Chairs need large mold space and high shot weight. Large M8SII models or the DU II two-platen series are typically used, depending on the chair design and mold size.
Can one machine run many different household molds?
Yes. Selecting the machine for the largest mold and heaviest part, with a suitable injection unit, lets the same machine run a family of products.
Can I use recycled material for household products?
Recycled PP and PE are widely used for basins, buckets and outdoor furniture. Plan for consistent material quality, filtration and color control.
What is needed for transparent storage boxes?
Clarified PP, clean material handling, polished molds and stable process settings help achieve good clarity and surface.
What information should I send?
Product drawings or samples, part weight, material, mold size and the target output for each product.