Size matters for Isopak

By Gregory Roumeliotis

- Last updated on GMT

Supplier of small-scale pharmaceutical equipment Isopak has
launched what it claims is the smallest vacuum mixer with cooling
and heating facilities in Europe for mixing dry powder, cream,
ointments, paste and lotions in batches between 0.8ml and 5ml.

Just 1100mm wide, 500mm deep and 1050mm high, the stainless steel device called Lilliput is especially designed for research laboratories, small-scale production units and pharmaceutical testing rooms, where space is limited.

The vacuum mixer features an advanced turbo-emulsifier with counter-rotating blades designed to offer a very high shearing action

A special injection system transfers powders and liquids directly into the emulsifier's shearing zone while the angle of the blades ensures radial mixing for excellent product quality and lower operation costs.


Isopak​'s managing director, Robin Davies, told​ that Lilliput is less expensive than its competitors but declined to disclose the price.

"Lilliput is one of the smallest machines around,"​ he said.

"This means you can save space and also make very small quantities of the product you need."

The UK company says one of the reasons the Lilliput handles viscous products so easily is due to its design, which incorporates coaxial shafts and bearings.

The outer part of the mixing shell includes a jacketed bowl for heating and cooling of the products, depending on the application.

What is more, the vacuum controls offer good deaeration during processing, resulting in what Isopak claims is short batch times and high productivity.

Lilliput also allows the feeding of powders through the valve at the bottom of its vessel where they are immediately dispersed by the homogenising turbine, preventing lumps and providing fast and efficient processing.

Manufactured by Dott Bonapace, the device includes a variable mixer and turbine speeds, automatic lifting and tilting, and it has a voltage of 230V, 50Hz, single phase.

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