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HAVER & BOECKER

Our MINIMESH® filter mesh variety

Precise, clean, efficient

The filter properties of MINIMESH® S-Metal Filter Cloth can be precisely adjusted to the respective area of application. Even after processing and in extremely shaped areas, the predetermined characteristic is retained. Thus industrial filtration processes run in a permanently stable, precise, clean, energy-efficient and overall economical manner.

Certificate for a Whithouse Scientific filter cut point, Hiflo 15 Certificate for a Whithouse Scientific filter cut point, Hiflo 15 Certificate for a Whithouse Scientific filter cut point, Hiflo 15
The high uniformity of the precision pores is particularly effective for ultra-fine meshes with pore sizes < 20 µm.

Excellent: Higher selectivity due to precision pores

MINIMESH® S-Metal Filter Cloth specifications have an optimised pore geometry with a precisely determined pore size. As a result, they attain a precise cut point and dimensional stability previously unattainable.

For the geometric pore, a characteristic value is determined that describes the diameter of a sphere that can just pass through the filter cloth. HAVER & BOECKER gives the value Xmax (= maximum pore size) as a reference value for the pore size.

The pressure drop coefficient for air in a laminar flow is used to evaluate permeability. Haver & Boecker developed the mathematical equations on which the procedures are based in cooperation with the University of Stuttgart.

The mathematical formulae were checked and confirmed using known measurement methods to determine the pore size and flow-through. The maximum pore size was determined using the glass bead test. In addition, Haver & Boecker applies the "Bubble Point Method" according to SAE ARP 901 as part of its quality assurance.

The independent, internationally renowned test institute WHITEHOUSE SCIENTIFIC confirms the outstanding filter characteristics of the MINIMESH® S generation with "precision pores".

A clean solution: Improved purging and reduced blockage

The filter effect and flow capacity of MINIMESH® S-Metal Filter Cloth stay considerably longer compared to other filter media. The tendency to block is lower, cleaning is easier. This leads to permanently precise filtration and longer service lives of the filter media used.

Verification of these properties is carried out in cooperation with the Institute for Mechanical Process Engineering, IMVT. These include air flow-through measurement, determination of the fractional separation efficiency (FAG), the dirt absorption capacity with test dust according to ISO 12103 and the cleaning behaviour measured in accordance with VDI 3926 Type 2. HAVER & BOECKER uses an automatic residual contamination analysis system to verify the high purity of MINIMESH® S-Metal Filter Cloths.

Microscopic residual contamination analysis in the works laboratory Microscopic residual contamination analysis in the works laboratory Microscopic residual contamination analysis in the works laboratory
To prove the high purity of MINIMESH® S-Metal Filter Cloths, Haver & Boecker uses a standardised residual contamination analysis system.
Dirt absorption of a HIFLO 30-S unloaded Dirt absorption of a HIFLO 30-S unloaded Dirt absorption of a HIFLO 30-S unloaded
Dirt absorption of a HIFLO 30-S unloaded.
Dirt absorption of a HIFLO 30 S loaded Dirt absorption of a HIFLO 30 S loaded Dirt absorption of a HIFLO 30 S loaded
Dirt absorption of a HIFLO 30-S loaded.

Best materials for best meshes

MINIMESH® S-Metal Filter Cloths are mainly made out of stainless steel, for example 1.4301, 1.4306, 1.4401 and 1.4404. In addition, if required, also from other materials that have the metallurgical properties required for extremely thin wires.

Learn more about the materials for wire mesh here.

All mesh types in the overview:

3D view of a MINIMESH® SPW-S sphere 3D view of a MINIMESH® SPW-S sphere 3D view of a MINIMESH® SPW-S sphere
MINIMESH® SPW-S
3D view of MINIMESH® BMT-ZZ-S 3D view of MINIMESH® BMT-ZZ-S 3D view of MINIMESH® BMT-ZZ-S
MINIMESH® BMT-ZZ-S
3D view of the non-ball MINIMESH® HIFLO-S 3D view of the non-ball MINIMESH® HIFLO-S 3D view of the non-ball MINIMESH® HIFLO-S
MINIMESH® HIFLO-S
3D view of MINIMESH® RPD-S 3D view of MINIMESH® RPD-S 3D view of MINIMESH® RPD-S
MINIMESH® RPD-S
3D view of a MINIMESH® DTW-S sphere 3D view of a MINIMESH® DTW-S sphere 3D view of a MINIMESH® DTW-S sphere
MINIMESH® DTW-S
3D view of MINIMESH® TRD-S 3D view of MINIMESH® TRD-S 3D view of MINIMESH® TRD-S
MINIMESH® TRD-S
3D view of a MINIMESH® BMT-S sphere 3D view of a MINIMESH® BMT-S sphere 3D view of a MINIMESH® BMT-S sphere
MINIMESH® BMT-S
3D view of MINIMESH® RPD HIFLO-S 3D view of MINIMESH® RPD HIFLO-S 3D view of MINIMESH® RPD HIFLO-S
MINIMESH® RPD HIFLO-S
Drawing of the SPW + Ball-XMax Drawing of the SPW + Ball-XMax Drawing of the SPW + Ball-XMax
SPW - single plain dutch weave. Smooth braid

Pore size range:

  • 30 µm to 300 mm
     

Properties

  • Slight cleaning
  • A narrow pore distribution
  • High flow properties with a good mechanical strength


Example applications

  • A wide range of applications from filtration of air to drinking water, through to hydraulic oil
  • Use in lightning protection and sound insulation systems
  • Plastic extrusion
  • Gas exploration
MINIMESH® HIFLO-S: High Flow Filter Weave
Drawing of a HIFLO + Ball-XMax Drawing of a HIFLO + Ball-XMax Drawing of a HIFLO + Ball-XMax
HIFLO - high flow filter weave. High perforamce filter braids

Pore size range:

  • 15 µm to 40 mm
     

Properties

  • A high flow rate with small pore sizes
  • Easy to clean and a good backwashability
  • A very narrow pore size distribution
     

Example applications

  • Filtration of air at high volume flows and low dirt loads
  • Use as an absolute filter in lubricating oil circuits and fuel systems
Drawing of a DTW + Ball-XMax Drawing of a DTW + Ball-XMax Drawing of a DTW + Ball-XMax
DTW - dutch twilled weave. Twilled Dutch weave

Pore size range:

  • 7 µm to 120 mm


Properties

  • Mechanically robust
  • A narrow pore distribution
  • An exact degree of separation
     

Example applications

  • Protective filter for an injection system
  • Drinking water treatment
  • Gas and oil exploration
  • Blood plasma filtration
  • Versatile use up to the filtration of viscous substances, e.g. cocoa butter
Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax
BMT - broad mesh twilled dutch weave. Wide mesh twill
Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax Drawing of a BMT + Ball-XMax; drawing of a BMT-ZZ + Ball-XMax
BMT-ZZ - broad mesh twilled dutch weave. Wide mesh twill

Pore size range:

  • 13 µm to 55 mm
     

Properties

  • A good flow rate
  • Mechanically particularly robust with zig-zag binding
     

Example applications

  • Flue gas filtration
  • Plastic extrusion
  • A protective filter for additive admixtures in injection systems
MINIMESH® RPD-S: Reverse Plain Dutch Weave
Drawing of a RPD + Ball-XMax Drawing of a RPD + Ball-XMax Drawing of a RPD + Ball-XMax
RPD - reverse plain dutch weave. Dutch weave

Pore size range:

  • 20 µm to 315 mm
     

Properties

  • Mechanically robust
  • A high flow rate
     

Example applications

  • Precoat filter
  • Use in sound insulation systems
  • Ballast water filtration
  • Oil exploration
Drawing of a TRD + Ball-XMax Drawing of a TRD + Ball-XMax Drawing of a TRD + Ball-XMax
TRD - twilled reverse plain dutch weave. Dutch weave

Pore size range:

  • 75 µm to 540 mm
     

Properties

  • Mechanically robust
  • A high flow rate
     

Example applications

  • Use as a filter belt
  • Plastic extrusion
  • Oil exploration

*Patented: US020110290369, CH000000702351

Drawing of a RPD-HIFLO + Ball-XMax Drawing of a RPD-HIFLO + Ball-XMax Drawing of a RPD-HIFLO + Ball-XMax
RPD-HIFLO - corrosion- and temperature-resistant high-performance filter fabric in new weaving technology with pore sizes < 40 µm

Pore size range:

  • calibratable from 5 µm to 40 µm
     

Properties

  • Double the flow rate with the same pore size as comparable filter braids
  • Excellent selectivity and stability
  • Corrosion and temperature-resistant special materials
  • An optimum dirt absorption and cleaning capacity
     

Example applications

  • Sand control screens
  • Crude oil filtration
  • Ballast water filtration
  • Fine filtration in the chemical and pharmaceutical industry
Do you have any questions?
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HAVER & BOECKER OHG
Wire Weaving Division
Woven Media and Post Weaving Processes
Ennigerloher Straße 64
59302 Oelde, Germany