Mesh sieve

Test sieves test sieve JIS Z 8801

The net is made of metal wires woven at right angles (plain weave). However, we have made flat top weaves with a nominal aperture of 2.36 mm or more, which weave by bending metal wires in advance in order to prevent sieving. It is stipulated that a sieve mesh with a nominal mesh size of 45 μm or less may be a twill weave. Plain weaving is used from 2mm to 45μm.

  • Plain woven wire mesh

    Plain woven wire mesh

    This is a basic weave with vertical and horizontal lines intersecting alternately. The mesh is stable, so accurate and efficient screening can be performed.
  • Twill wire mesh

    Twill wire mesh

    Both the vertical and horizontal lines are arranged in two rows, each of which alternates with a delay of one step. It is suitable for weaving fine meshes and has the advantage that weaving can be done with thick lines.
  • Flat top wire mesh

    Flat top wire mesh

    It is a weaving method suitable for coarse and medium lump, and is woven with a flat processed line so that the sieve surface is smooth.
Dimensions of mesh screen



Calibration certificate / manufacturer inspection / re-inspection

Since October 2016, we have been accredited by ISO / IEC 17025 measuring institutions.
In 2020, in addition to the conventional calibration range of the JIS Z 8801 test sieve frame (φ75, φ150, φ200, φ300), the non-JIS standard frame (φ50, φ100, φ203, φ250) that was out of the range The range has been expanded so that the apertures of 13 μm and 16 μm (tolerance equivalent to 20 μm) can be calibrated.
We have established a system for more reliable calibration, and we will carry out calibration work in the following form from orders received after November 1, 2020.

① Calibration certificate: Limited to new products

・ Opening and frame dimensions within JIS Z 8801 standard
・ Frames outside JIS standards (φ50, φ100, φ203, φ250, etc.)
・ Opening outside JIS standard (13 μm / 16 μm)


(2) Manufacturer inspection: Products that have already been delivered and used products
・ Measured by JIS Z 8801 standard inspection method
・ Issuance of opening inspection report

③ Re-inspection: Test sieve with inspection certificate or calibration certificate already delivered
・ Measured by JIS Z 8801 standard inspection method
・ Issuance of opening re-inspection report

* Each form comes with a calibration certificate or inspection certificate for the measuring instrument and a traceability system diagram.
 * Calibration is limited to new products. In addition, regarding inspection and re-inspection, we may refuse if the product we have received is very dirty or scratched.
 * Regarding the size of the frame, the maximum inner diameter is φ300, and those larger than that cannot be calibrated and inspected.

Thank you for visiting the website of Chiyoda-ku, Tokyo [Tokyo Screen Co., Ltd.].

Thanks to our company, more than 40 years have passed since its establishment, and we have gained wide trust as the only manufacturer in the manufacture and sale of sieves in Tokyo.
Tokyo Screen Co., Ltd. is a testing organization that meets the requirements of ISO / IEC 17025 international standards, has been accredited by a registered certification body, and is officially recognized as a testing organization that has the ability to provide technically appropriate test results. For JIS Z 8801-1 test sieves, it is possible to issue a calibration certificate with the ilac MRA symbol mark.
We manufacture and sell everything from conventional mesh sieves to electroformed sieves and sieves using ultrasonic waves. We provide sieves that meet customer needs with reliable technology.
We can also process stainless steel products. We have fulfilled our customers' requests as much as possible and manufactured various custom-made products.
We accept orders from the required size, so please feel free to contact us for an estimate, price, and delivery date. We have posted products that have been produced in the past on our website for customers who do not know the design in detail even though they are said to be stainless steel products. Please see for reference.

For consultation on sieves and stainless steel products handled by our company, please call 03-3256-7457.
Please feel free to contact us if you have any questions.