Case study: Developing the Handicheck Hand Hygiene Unit

Handicheck, a pioneering company in the field of hand hygiene solutions, engaged the services of Cambridge Design Technology to develop an innovative hand hygiene unit. The project aimed to create a system that not only dispenses soap efficiently but also allows users to check hand cleanliness using a UV light loop.

Material Selection and Testing

We identified a material specifically designed for “white goods” which aligned perfectly with Handicheck‘s requirements for durable, wipe-clean parts. A stock sample of the chosen material was presented to Cambridge Design Technology for validation. The material was selected pending a test pour to ensure its suitability for the project. The master parts were designed to have a gloss finish to meet the wipe-clean specification.

Component Specifications and Manufacturing

Several critical components of the Handicheck unit required specific characteristics:

1. Soap Saddle

This internal part needed to securely hold the soap container in place. We recommended vacuum casting using 70 shore A Polyurethane rubber, ensuring compliance and stability without requiring a special finish.

2. Light Window

The window allowing UV light to pass through at the top of the housing required clarity and UV stability. We opted for gloss finish and UV stable vacuum casting material to ensure optimal performance.

3. USB Bung

Requiring flexibility and a satin finish, the USB bung was vacuum cast in 70 shore A polyurethane, meeting both functional and aesthetic requirements.

4. Soap Bottle

Manufacturing the soap bottle posed a challenge due to its hollow structure. We utilised SLA 3D printing technology with Accura ClearVue material, strategically orienting the part to eliminate the need for internal supports. A protective lacquer coating was applied to safeguard the part from potential interaction with the soap.

5. Barb Fitting

With intricate features requiring precise sealing, the barb fitting was 3D printed with 0.01mm layers to ensure optimal performance.

Collaborative Approach

Through close collaboration and meticulous attention to detail, we successfully met the requirements for the development of the Handicheck Hand Hygiene Unit. By leveraging advanced manufacturing techniques and selecting suitable materials, we delivered high-quality components that aligned with the project’s specifications and performance standards. The Handicheck Hand Hygiene Unit stands as a testament to the synergy between innovative design and precision manufacturing in addressing critical health and hygiene needs.