Flour Mill Mesh for Plansifter Screen | Nylon & Polyester Sieve Bolting Cloth

Flour Mill Mesh for Plansifter Screen
Nylon & Polyester Sieve Bolting Cloth
Coarse & Fine sieve screen
FDA & EU food contact compliant
Micron size: 80um-1600um
Standard width: 105cm, 127cm
Wholesale in rolls
OEM acceptable
Worldwide shipping

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Description

Flour Mill Mesh for Plansifter Screen | Nylon & Polyester Sifter Bolting Cloth

The flour mill mesh is specially designed fabrics for plansifter screen which for classifying the milled product in the milling industry. It’s a sieve bolting cloth weaving by FDA & EU food grade Nylon or Polyester, monofilament or double-filament yarn in precision micron apertures.

The plansifter screen mesh plays a crucial role in the milling industry, which decides the balanced and stable flour quality.

Nowadays, the Nylon (PA) and Polyester (PET) mill mesh fabrics are most widely used instead of natural silk mesh, due to their integrative performance, please see their characters as below,

plansifters

1. Natural silk flour mill mesh, made out by 100% multi-strand natural silk yarns, its merits good elasticity, anti-lax, anti-deform, good hygroscopicity, anti-static. However, it’s poor wear-resistant and easy to fluff.

2. The Nylon (PA) flour mill bolting cloth are weaving by nylon monofilament yarn, it’s wear-resistant, good hygroscopicity than Polyester, high strength, long service life, the best integrative performance at the moment.

3. Polyester (PET) sieve cloth is in performance of high strength, anti-deform, stable & constant tension, Resistant to temperature changes, but its wear resistance and anti-static property are not as good as Nylon.

Their property and difference are as follows,

Properties comparison of different material
Property Nylon Polyester Natural silk
Tensile strength ( kg/mm2) 41~67 45~75 36~45
Breaking elongation 20~35% 15~30% 15~25%
Resilience  (after 3% fixed elongation) 95~100%  90~95% 54~55%
Temperature resistance < 100 ° C < 140 ° C becomes brickle at 100 ° C 
Humidity absorption
(65% relative moisture,20℃)
3.8% 0.4% 11%
Corrosion resistance Good Good Medium
Mass ratio resistance (Ω/cm°g) 4.1×1010 2×1015 Medium

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Summary of Sifting Fabrics PA & PET Sifting mesh fabrics properties comparison
PA-polyamide PET-polyester
Abrasion resistance very good approx. 2/3 of PA
Water absorption 4.40% 0.40%
Benefit of the fabric long lifetime less influence in humidity changes
Hydrolysis resistance good limited
Fabric surface structure standard slightly rougher
Stability to light limited limited

Bonfilt’s flour mill mesh category

plansifters

The hardness of different wheat and grains, the different constitution of the endosperm requires to choose the suitable sieve cloth. According to the weave pattern, thread yarn and mesh opening micron size, there are PA-GG (Grit Gauze) series, PA- Milling Forte (MF),  PA-XX (Taffeta) series, PA-XXX (HD) series, PET-GG (Grit Gauze) series to meet different milling and purifying requirements. Bonfilt is supplying the full range of mill mesh fabrics.

Usually, the different series are using in different area.

PA-GG

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PA-GG (Grit Gauze) series of flour mill mesh, plain weave, has relative thicker yarn & bigger mesh opening, commonly used in coarse sieving, can be replacement of Stainless steel mesh.

PA-XX

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PA-XX series plansifter screen mesh is monofilament & double filament in turns in warp yarns, it’s dimensionally stable, has large effective sieving area, roughened surface, to get better automatic grading performance. It’s the most applied in the milling plants.

PA-XXX

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PA-XXX (HD) series nylon sieve bolting cloth is weaving in plain weave and thicker thread yarn, which call enhancement type, it has the better abrasion resistance and long lifetime.

PET GG

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The PET (Polyester) – GG (Grit Gauze) series flour mill mesh is mainly used in purifier covers on flour cleaning machines, which classification and separating the bran, glutenous endosperm, and pure endosperm.

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Sifting Fabrics Machines  Area of use Main benefit Standard use for
Sifters Centrifugal Sifters Purifiers
PA-GG × ×   Coarse sifter covers Anti-abrasive qualities Coarse sieves
PA-Milling ×   Soft wheat, biscuit and rye flour
High efficiency Flour sieves
PA-Milling Forte (MF) ×   Good lifetime and efficiency
PA-XX × ×   Soft wheat, biscuit and rye flour  Long lifetime, high efficiency
PA-HD(XXX)   ×   Durum and hard wheat flour Strongest fabric Centrifugal sifter
PET-GG     × Purifier covers Constant tension Purifier 

How to choose the optimal plansfiter screen mesh cloth for your flour mills? There are 6 technical points for the mill mesh fabrics:

1. Mesh opening size: It refers to the distance between the two adjacent yarns, the critical parameter of a flour mill mesh, which decides the final flour fineness and quality.

Sifters Mesh opening Sieve screen fabric
Coarse >1200-900um PET & PA grit gauze
Medium >1000-212um Polyamide grit gauze
Fine >300-90um Polyamide flour sieve

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2. Wear-resistant property: It determines the service life of the milling screen. Nylon has the best wear resistance in all the materials, polyester is only 70% of Nylon, and natural silk is the worst. In the same material, the thicker of the yarn diameter, the better wear resistance.

3. Elongation: The natural silk mesh fabrics have the lowest elongation than polyester and nylon. However, the heat setting treatment makes polyester and nylon mill mesh anti-deform and elongation as small as possible, which is similar to silk.

4. Antistatic property: All flour sieve cloth have to be antistatic. Due to the contact and friction between fiber and fiber, fiber and material will cause static electricity, and the fine flour particles are easy to be captured by the charge and blinding the sifter screen. Nylon mesh has better antistatic performance due to its high hygroscopicity.

5. Width: High-yield & high-square plansifters improve milling efficiency and productivity. You have to choose the optimal width according to the end user’s plansifter and purifiers. Bonfilt has 1.10m, 1.27m, 1.36m, 1.45m, etc to meet your requirements.

6. Effective sieving area: It refers to the percentage of the opening area in the unit screen. It‘s related to the size of the yarn diameter and the weaving pattern.

Nylon flour mill mesh cloth production flow:

screen printing mesh production flow

Main points during use of Bonfilt’s Nylon flour mill mesh

1. Stretch the plansifter screen mesh in moderate tension, too loose will get bad sieving performance, although the too tight screen will get worse outcome as well.

2. Too tight mill screen will make:

  • Mesh opening largen and deform.
  • Over the screen, elongation limited and shorten the lifetime.
  • Reduce the elasticity of the sieve screen, unable to spring the cleaners to clean the screen, block the holes.
  • Cause deformation of the screen frame, especially for screen size over 7 4 0mm × 7 40 mm, and leaking.

3. The mill screen fabrics should be stretched step by step to ensure the screen mesh stretched balanced and evenly.

As the professional supplier of the flour mill mesh for plansifters screen and purifiers, Bonfilt’s sieve bolting cloth have the property

  • FDA & EU food grade Polyamide and Polyester raw material, safe and clean.
  • Abrasion-resistant, long service life。
  • Weaving by Sulzer projectile looms and superior reed to get precise mesh opening, which is less than 5% tolerance.
  • Excellent heat setting by advanced washing & heat setting machine of German origin.
  • Advanced and skilled technics make the sieve screen cloth in moderate elasticity and anti-deform.
  • High milling efficiency and high yield.
  • Full range of series and types to meet your requirements.
  • Standard width 127cm, other widths acceptable for customized.

packing & shipping

Standard packing: poly-woven bags for overseas transportation safety, wooden crates upon request.

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