Production of gelatine products with LEWA multiplex pumps and systems

Both in the production of gelatin and in the fabrication of gelatin products, LEWA pumps are used in different steps of the process.

Both in the drying process (transition from gel-like consistency to solid state) and in the subsequent recipe metering and addition of gelatin to finished products (candy, fondant, yoghurt fabrication etc.) high precision and aseptic metering is required.


For the production of gelatine products, LEWA provides a series of solutions for various process steps:

  • By using multiplex pumps for recipe metering or complete systems, LEWA provides hygienic alternatives in the entire process for producing gelatine.
  • For each component of the recipe metering (sugar and gelatine solution, color, flavor, acid, etc.) a metering unit is used that consists of at least one LEWA metering pump and a downstream static mixer.
  • As early as the project stage, calculations are carried out for optimizing the suction side conditions.
  • LEWA multiplex process pumps with a hygiene-compliant diaphragm pump head are the tried-and-tested solution for sterile metering of gelatine into a cooler.
  • LEWA multiplex pumps always convey with the greatest precision, even at a counterpressure from 20 to 50 bar, which can arise during the drying process.
  • Sanitary/hygiene-compliant design of the pumps used with the least dead space
  • Wetted parts are FDA-compliant as well as tested and documented for USP Class VI
  • Material certificates in accordance with EN 10204 3.1
  • Surfaces of the pump polished mechanically (316/316L-1.4401/1.4404: RA < 0.8µm) or polished mechanically and electro-polished (1.4435: RA < 0.5µm).
  • Easy to clean in accordance with recognized industrial standards (EHEDG, QHD, FDA and USP Class VI-compliant)
  • The pumps can be sterilized with hot water or steam at up to 150 °C.
Gelatine prodction LEWA ecoflow multiplex pump


How is gelatin produced?

There is a distinction made between bone gelatin, which is obtained from long bones of the legs of calves and cattles and dermic gelatin, which is derived from tanneries waste, pork rind and cows’ and cattles’ heads.

The bones are cleaned, shredded and macerated. The tricalcium phosphate in the bone tissue is removed with dilute hydrochloric acid. Then, it is multiply watered and treated with lime water (“liming”). The next steps are the neutralization of the acid and further washing procedures.

The gelatin is extracted from the washed-out bone collagen in multiple steps, pre-cleaned in separators and afterwards filtrated.

The filtration is a typical application for metering pumps: Diatomaceous earth or perlite slurries are added to the alluvial filter. Flow rates are below 360 l/h and pressures are below 8 bar.

The separation yields an aqueous gelatin solution with a concentration of approximately 6 %. The gelatin content is increased to approx. 30 % in a single or multi-stage vacuum evaporation column. The viscosity goes up to 1500 mPa∙s. This solution now is fed to a drying process.

This is the main application area for multiplex pumps. The task of these pumps is the germ-free metering of the gelatin into a cooler with subsequent fragmentation and drying. The transition from gel-type state to solid state leads to back pressures from 20 to 50 bar.


LEWA ecoflow diaphragm metering pump

LEWA ecoflow diaphragm metering pump

The ecoflow® diaphragm metering pump from LEWA is a true all-around talent in the field of metering and mixing and can be used in all industries.

LEWA ecoflow sanitary/hygienic

LEWA ecoflow sanitary food pump

The ecoflow® diaphragm metering pump in sanitary/hygienic design is the ideal pump for food and pharmaceutical products.

LEWA ecoflow packed plunger metering pump

LEWA ecoflow packed plunger metering pump

The LEWA ecoflow® packed plunger metering pump is the high-performance and economical metering pump for simple pumping or metering tasks.

LEWA ecodos mechanical diaphragm pump

LEWA ecodos mechanical diaphragm pump

The ecodos® mechanical diaphragm metering pump from LEWA is suitable for all pumping and metering tasks in the low-pressure range.

LEWA ecodos sanitary/hygienic

LEWA ecodos food pump

The LEWA ecodos® diaphragm metering pump with its sanitary/hygienic design is the ideal pump for food and pharmaceutical products in the low-pressure range.

LEWA triplex process pump

LEWA triplex high pressure pump for process engineering

LEWA triplex is the most compact process pump in the world for high-pressure processes in all branches of industry. Contact us, we are happy to help!

Pomac rotary lobe pump

Pomac rotary lobe pump PLP

The rotary lobe pump – the solid endurance test vehicle from Pomac is used in nearly all industrial areas and can withstand continuous loads.

Pomac centrifugal pump

Pomac centrifugal pump

The stainless-steel Pomac centrifugal pumps for low-viscosity media excel by virtue of their optimum hydraulic data, a unique modular design and the numerous options available in the area of shaft seals.

Customized production units

LEWA metering and mixing system

LEWA develops complete systems for metering, mixing, and filling fluids. Contact us and let us advise you!

Customer-specific metering systems

LEWA metering system

LEWA provides you with custom-designed metering systems according to your specifications. Put your trust in the experience gained from 60 years of metering technology in various industries.

Contact Person

  • Sales Office Czech Rep.
  • LEWA NIKKISO Austria GmbH (odštěpný závod)
  • +420 5 432360-52

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