 |
|
|
|
Products and Services at HA-WI |
|
|
Manufacturing Process “A one-stop shop” In addition to our standard offerings, HA-WI’s philosophy is to provide a service tailored to your needs. Our advantage is that customers can source everything through order-design-delivery from HA-WI’s talented team of engineers. As well as having our own in-house injection moulding machines and tooling facilities, HA-WI comprises three core-businesses: |
|
|
Thermoplastic Injection Moulding Our products are sourced from current thermoplastics in the market. Thermoplastic injection moulding is the most accepted method of creating plastic mouldings, by which plastic granules are melted and injected into a mould at very high pressures. In order to achieve the desired form stability, the tool must cool down which leads to a reduction in volume tethered by the cooling process. Once the mould is open enough for the part to be removed, ejector pins are moved forward ejecting the part. At HA-WI, parts are manufactured using mostly polypropylene, polyethylene, polystyrene, acrylonitrile butadiene styrene (ABS), polyacetal, polyamide, polycarbonate and polyetheretherketone (PEEK). If the materials do not exhibit the desired characteristics, new compounds can be cast to customer specifications, known as polyblends. Additives used are Expanding Agents, Fibreglass Reinforced Plastic, Glass Beads, Mineral Fibre and our own in-house Custom Colour Compounds. The machines are equipped with a central feed section ideally suited to the injection of plastic granules into the mould parting surface. |
|
|
|
Additional Services In addition to the standard injection moulding processes we also use applications such as In-Mould Decoration (IMD). This introduces a label or appliqué into the injection moulding manufacturing process. This label or appliqué can be of a decorative or instructional nature that becomes a semi-permanent imbedded component of the moulded object. HA-WI also uses multimaterial moulding, which combine different types of operating processes with one or more injection units but require only one clamping unit. The injection units can be adjusted to work in unison or independently of one another. One of the benefits of this process is that a variety of plastics can be used at the same time with the aim of compounding plastics that have a certain adhesive quality (PP/PE, PC/ABS, etc.) or for use in multiple components where individual parts are required to move among themselves, for example. A further technical variant to injection moulding at HA-WI are Wood Plastic Composites (WPC). This is a composite material timber composed of wood from recovered saw dust (and other cellulose-based fibre fillers such as pulp fibres, peanut hulls, bamboo, straw, digestate, etc.) and virgin or waste plastics including high-density polyethylene, PVC, PP, ABS, PS and PLA. While still fairly new, relative to the long history of natural timber as a building material, WPC is highly resistant to cracking, splitting and rot. Wood Plastic Composites can be moulded to meet any design and may be shaped using conventional woodworking tools. HA-WI also utilises overmoulding applications. An overmould is injection moulded around, over, under, or through a substrate material to complete the final part. This injection can be done with a multishot process or by insert moulding (useful in creating a surface finish when dealing with raised screws or other metal objects). Usually, the overmoulded material is an elastomeric resin. |
||
|
Tooling Tooling forms an essential part of the HA-WI manufacturing process. With an in-house tool room and CNC Programming located at our headquarters in Bad Laasphe, we manufacture tools to meet customer specifications. Tools designed and manufactured at HA-WI can be used on customer orders placed with us or elsewhere. In addition to toolmaking, HA-WI also sells its patented BAKRA® Bayonet clamping system. This system is preassembled and mounted to the tool and machine, and is easily achieved by one person. |
|
||
