At Plastindia 2026, which will take place from 5 to 10 February in New Delhi, BOY's Indian representative Karan Engineering Co. will again focus on liquid silicone rubber (LSR) processing. In hall 6, booth B5, the company will run a high-precision silicone application on a compact Boy 50 E injection moulding machine with a clamping force of 500 kN. The exhibit is aimed at demonstrating the capabilities of the machine in demanding LSR processing tasks, particularly for technically sophisticated end uses in the automotive and electronics sectors. During the live production, high-precision seals for automotive connectors will be injection moulded, providing visitors with an opportunity to assess the reproducibility and stability of the process under trade fair conditions.
LSR processing on the BOY 50 E
The BOY 50 E on show is equipped with a servo motor pump drive and the Procan Alpha 4 control system. According to the company, this configuration is designed to ensure precise process control and energy-efficient operation. The LSR-specific equipment package is completed by a fully electric metering and mixing system, which has been specially developed for the accurate dosing and homogeneous mixing of liquid silicone rubber materials.
The live set-up at Plastindia is intended to demonstrate the performance of BOY technology in liquid silicone applications that place high demands on part geometry and dimensional stability. The focus is on components such as connector seals in the automotive and electronics industries, where tight tolerances, material consistency and process reliability are critical. The combination of the machine, control system and metering unit is configured to support stable cycle times and consistent shot weights in continuous operation.
Machine design and application flexibility
The BOY 50 E features a free-standing two-platen clamping unit. This design is described as providing precise movement characteristics, smooth running and a compact footprint. With an installation area of only 3.32 m², the machine requires significantly less space than comparable three-platen designs, which can be an advantage in production environments with limited floor area or in cells where several machines operate side by side.
A broad range of available plasticising units supports different material classes. For the BOY 50 E, plasticising units for thermoplastics, thermosets, LSR and elastomers can be specified, with screw diameters from 18 to 42 mm. This layout allows processors to adapt the machine to a variety of processing tasks, from conventional thermoplastic injection moulding to specialised LSR and elastomer applications, depending on the tooling and material requirements.
LSR Application
BOY's position in the Indian LSR market
S. Sundaram, owner and CEO of Karan Engineering Co., underlines BOY's established role in the Indian market for liquid silicone processing. He states: "BOY has been a leader in liquid silicone processing in India for many years. With a market share of over 80% in the field of LSR applications, our customers benefit particularly from the precision and reliability of the E series. The live presentation at Plastindia will help us to further expand our range in critical applications such as automotive, electronics, medical technology, household appliances and aerospace."
The team at Karan Engineering Co. is preparing for a six-day programme at Plastindia 2026 and is expecting strong interest in the LSR exhibit at the BOY booth. The demonstration is positioned as an example of how compact injection moulding machines can be configured for high-precision silicone applications in a variety of technically demanding market segments.
