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Continuous filtration & dosing solution for hotmelt adhesive


Thanks to an excellent, long-term relationship with Beardow Adams, headquartered in the United Kingdom, Suurmond were contracted to design and develop a turn key filtration solution with heatable gear pump and control system that will allow for the production of highly viscous hotmelt adhesives. For this type of demanding process, the MAAG gear pumps and MAAG screen changers are the optimal solution.

A turn key filtration solution with heatable gear pump and control system.

Beardow Adams is a world-leading adhesive manufacturing company and since 1977 they have designed and manufactured adhesives for a large range of industries, supplying more than 10,000 respected companies in over 75 countries.

Hotmelt adhesive filtration unit with transfer pump

The production facility in the UK was in need of two high-precision filtration units complete with gear pumps and control systems.

The first unit was designed to transfer 15,000 litres per hour from a mixing vessel to a holding vessel. For this first application we selected the DSC148 single piston screen charger of MAAG Pump Systems AG from Switzerland. This has a 148.3mm screen diameter and oil heating channels within the body. The DSC148 was selected to ensure it has the right level of filtration area at the given flow rate, resulting in an acceptable lifetime.

For the transfer of the adhesive a MAAG Therminox® 110/110, oil heated, pump was selected with special bearings and special clearances to achieve the maximum pump efficiency and the correct lubrication.

Discontinuos screen changer and gear pumpTwin piston screen changer for continuous operation


The unit with a MAAG discontinuous single piston screen changer type DSC148 and Therminox® 110/110 was designed to transfer 15,000 litres per hour from a mixing vessel to a holding vessel. The gear pump provides a continuous and constant flow resulting in a higher quality of the end product.The twin piston screen changer CSC148-R has a small footprint and can easily be accessed for live filter change for continuous operation.

Change filter during production process and accurate dosing

The second unit was specified to dose 2,000 to 2,500 litres per hour of mixed adhesive from holding vessel to a cooling belt at a constant pressure and flow rate which would be determined by the adhesive formulation.

For this application it was very important to have a continuous and constant flow. A Maag CSC148-R twin piston screen charger with oil heating was selected to allow for filter change without interrupting the production run.

The CSC148-R offers a total filtration surface area of 1,596cm2. Due to the open design of the support frame it allows for easy access for maintenance and equipment cleaning.

The MAAG Therminox® 56 size pump was selected as a lower flow was required to dose the adhesive to a cooling belt. The MAAG gear pump design allows for a pulsation free delivery of the adhesive to a very high degree of accuracy which results in a better quality of the end product.

Problem-free, continuous process

To allow for a problem-free, continuous process, a Siemens control system was programmed to control the pump speed, monitor pressure, temperature, heating control, hydraulic power pack, safety interlocks and alarm settings to inform operators when filter change is needed and if any of the various parameters fall above or below their limits.

Siemens control system

The Siemens control system allows for operator-free operation.

Scope of supply

Over the past years Suurmond supplied various units to Beardow.

The scope of supply of this particular system comprises:

  • MAAG gear pump type Therminox® 110/110 with geared drive unit
  • MAAG single piston – discontinuous – screen changer type DSC148
  • Hydraulic power unit for screen changer DSC148
  • Support frame
  • MAAG gear pump type Therminox® 56/56 + geared drive unit
  • MAAG Double piston – continuous – screen changer type CSC148-R
  • Hydraulic power unit for screen changer CSC148-R
  • Adapters
  • Thermocouple ‘J’ type for temperature control
  • Control system with temperature and pressure sensors for both units


Suurmond supplies solutions to optimize your process and improve the quality of your end-product. Our specialists will be happy to advise you.

Let’s talk!

Let's talk!

Suurmond BV
The Netherlands
T +31 (341) 25 49 00 

Voltweg 2
8071 CZ Nunspeet

CoC 08142400
VAT NL815360800B01

Suurmond BV
Belgium and Luxembourg
T +32 (3) 54 44 070

Noorderlaan 109
2030 Antwerp

Company no. 0440573109
VAT BE-0440.573.109

Suurmond UK Ltd
Great Britain & Ireland
T +44 (1386) 423 756

7e Enterprise Way
Evesham, Worcester

Registration no. 5113524
VAT GB 845 7137 10

Suurmond (France)
T +33 (474) 02 66 75

Parc Millésime, bâtiment 4
119 rue Michel Aulas
69400 Limas

VAT: FR59815325303
Registration no.: 59 815 325 303

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