Bi-Injection Moulding Machines

Bi-Injection

Solutions for multi-material moulding, multi-colour moulding and overmoulding

Ripress solutions also enable the creation of fully integrated production cells, improving production efficiency and optimising energy consumption. This approach reduces subsequent processing and simplifies the production cycle, increasing operational continuity.

Flexible solutions for multi-material applications

Machines best suited for bi-Injection moulding machines

IT HES

The first injection moulding machine in Europe to successfully adopt a servo proportional system.

2P HES

2P HES is a hydraulic press with 2-platen hydroblock closure.

FLOWER

A completely italian project dedicated to technical molding.

HYBRID 2P HES

Electric injection moulding machine with 2-platen hydroblock closure

HYBRID IT 2 HES

The evolution of the IT HES injection moulding machine

Ripress offers configurable solutions tailored to the production process, thanks to the freedom to combine and position the different injection units in relation to the clamping unit.

These configurations meet specific production requirements, such as:

overmoulding of different materials
moulding with a rotary table or movable inserts in the mould
simultaneous moulding of the same material or different materials

FAQ – Frequently asked questions about bi-injection moulding machines

What are the main configurations for bi-injection moulding?

Configurations may include multiple injection units combined with a single clamping unit, with different architectures depending on the process. The most common include rotary table configurations, sliding platen systems and solutions with sequential injection into the same mould, designed to correctly manage the different stages of the cycle.

How is adhesion between different materials ensured?

Adhesion depends on the chemical and rheological compatibility of the materials, as well as on proper process control. The temperature of the first material at the time of the second injection, the contact pressure and the time between the two stages are key factors in achieving a stable and durable bond.

How does the machine configuration affect the final result?

The arrangement of the injection units, their synchronisation and integration with the mould directly affect component quality. The correct configuration enables precise control of the injection sequences and ensures process stability and repeatability.

What production advantages does bi-injection moulding offer?

Bi-injection moulding allows multiple functions to be integrated into a single component, reducing secondary operations and simplifying the production cycle. This results in greater efficiency, shorter processing times and improved overall product quality.

Bi-Injection Moulding Machines

Custom design

In bi-injection moulding, the machine configuration must be developed according to the component, the materials and the required moulding sequence.

Ripress develops custom solutions by configuring the machine in terms of:

number and arrangement of the injection units
integration with the clamping unit and mould
management of injection sequences and process parameters

The aim is to ensure correct interaction between the materials, process stability and cycle repeatability, even in the most complex applications.

Bi-Injection Moulding Machines

After-Sales Services and Technical Support

In bi-injection moulding applications, maintaining process control over time is essential to preserve product quality and reliability.

Ripress supports its customers with a dedicated after-sales service, working on both the machine and the process to optimise operating conditions.

The support service includes:

customised technical support,
spare parts supply,
complete overhaul of injection moulding machines,
technological upgrades,
qualified technical consultancy,
performance optimisation of existing machinery.

Ripress continuously provides an overhaul and refurbishment service for both its own and third-party injection moulding machines. Each machine is carefully inspected and restored to optimal operating condition to ensure reliability, efficiency and production continuity.