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Sintered Vent

About a Sintered Vent

About a Sintered Vent

Sintered Vent is produced by applying sintering process of powder metals and has many paralleled, straight micro pores that allow air/gas purge.
It is also called air vent or gas vent and used as gas purging vent during aluminum casting and resin molding. If a certain level of air and/or gas, which comes from raw materials, remains inside the cavity at the time of injection of melted resin or casting of aluminum alloy under low pressure, it defects the finished products. Our vent helps purging those air and gas during molding process.

Characteristics of Sintered Vent
  • Contains micro pores of 0.02mm to 0.5mm
  • 300 to thousands of straight micro pore per 1cm²
  • Various combinations of pore diameter and numbers of pore
  • Better thermal conductivity due to copper infiltration method
  • Steam treatment for rusting prevention

Application of Sintered Vent

Gas purging for aluminum alloy gravity and low pressure casting

Application of Sintered Vent

  • Our Sintered Vent has 4 to 30times larger pores than conventional vent and offers the best results even with smaller outer diameter.
  • For larger casting of aluminum alloy, vent with 0.5mm pore diameter as an effective diameter should be proper application.
    For smaller and higher pressure casting, 0.3mm pore diameter should work the best.
  • With better purging performance, more accurate molding is available without lack of filler and missed molding at convex tip.
For gas vent for injection molding
  • Effectively purge air in the cavity and prevent gas burn and missed molding.
  • For injection molding of resin, attach the Sintered Vent with 0.05mm+/- at the outlet to purge gas.
  • Easily move the welded line.
  • Reduces the shot cycle and significantly improve productivity.
  • Inject the vent in the center of ejector pin or locations of underfill to maximize the advantages of the vent.
For gas vent for blow molding of resin
  • Gas vent for blow molding of resin for automotive parts and household and industrial resin containers, Sintered Vent with 0.3 to 0.5mm pores are applied.
We also provide SUS W-type vent for injection molding.

We also provide SUS W-type vent for injection molding.

  • SUS vent is effective to prevent decay caused by gas. W-type vent has more porosity than P-type vent with the same pore diameter.

Specification of Sintered Vent

Specification of Sintered Vent

Specification of Sintered VentA
Specification of Sintered VentB
For gravity/low pressure casting
P-type vent [Material: Fe-Cu-C type]
Type Code No. Outer diameter(mm) Full height(mm) No.of pores Pore dia(mm) Porosity(%)
A 50310 3 10 39 0.5 60
A 50410 4 10 39 0.5 55
A 50510 5 10 61 0.5 45
A 50610 6 10 61 0.5 40
A 50615 6 15 61 0.5 40
A 50810 8 10 96 0.5 35
A 50815 8 15 96 0.5 35
A 51010 10 10 200 0.5 34
A 51015 10 15 200 0.5 34
A 51210 12 10 200 0.5 31
A 51215 12 15 200 0.5 31
A 51415 14 15 341 0.5 35
A 51615 16 15 341 0.5 32
A 51815 18 15 553 0.5 33
A 52015 20 15 553 0.5 33
A 52815 28 15 973 0.5 30
A 30510 5 10 96 0.3 30
A 30515 5 15 96 0.3 30
A 30610 6 10 96 0.3 29
A 30615 6 15 96 0.3 29
A 30810 8 10 200 0.3 28
A 30815 8 15 200 0.3 28
A 31010 10 10 341 0.3 31
A 31015 10 15 341 0.3 31
A 31210 12 10 341 0.3 28
A 31215 12 15 341 0.3 28

Tolerance of outer diameter +0.03 to 0.08 Length ±0.5

Injection Molding and Die Casting
P-type vent [Material: Fe-Cu-C type]
Type Code No. Outer diameter(mm) Full height(mm) No.of pores Pore dia(mm) Porosity(%) Effective height(mm) Effective diameter(mm)
B 201010 10 10 880 0.2 35 5 6
B 100810 8 10 880 0.1 29 5 5.5
B 101010 10 10 880 0.1 29 5 5.5
B 050610 6 10 880 0.05 18 5 3.5
B 050810 8 10 880 0.05 18 5 3.5
B 051010 10 10 880 0.05 18 5 3.5
B 030610 6 10 880 0.03 13 5 2.5
B 030810 8 10 880 0.03 13 5 2.5
B 031010 10 10 880 0.03 13 5 2.5

Tolerance of outer diameter +0.03 to 0.08 Length ±0.5

W-type vent [Material: Fe-Ni-Cr Mo type]
Type Code No. Outer diameter(mm) Full height(mm) No.of pores Pore dia(mm) Porosity(%) Effective height(mm) Effective diameter(mm)
A W200610 6 10 169 0.2 27 10 5
A W200810 8 10 288 0.2 27 10 6.5
B W201010 10 10 180 0.2 23 3 5.5
A W100110 1 10 7 0.1 19 10 0.6
A W100210 2 10 55 0.1 19 10 1.7
A W100310 3 10 76 0.1 19 10 2
A W100410 4 10 76 0.1 19 10 2
B W100510 5 10 76 0.1 19 3 2
B W100610 6 10 76 0.1 19 3 2
B W100810 8 10 300 0.1 19 3 4
B W101010 10 10 690 0.1 19 3 6
B W101210 12 10 1200 0.1 19 3 8
B W101510 15 10 1900 0.1 19 4 10
B W102010 20 10 4300 0.1 19 4 15
A W050110 1 10 43 0.05 25 10 0.65
A W050210 2 10 225 0.05 22 10 1.7
A W050310 3 10 225 0.05 25 10 2
A W050410 4 10 225 0.05 25 10 2
B W050510 5 10 400 0.05 25 3 2
B W050610 6 10 400 0.05 25 3 2
B W050810 8 10 1600 0.05 25 3 4
B W051010 10 10 3600 0.05 25 3 6
B W051210 12 10 6400 0.05 25 3 8
B W051510 15 10 10000 0.05 25 4 10
B W052010 20 10 20000 0.05 22 4 15
A W030110 1 10 70 0.03 25 10 0.5
A W030210 2 10 280 0.03 25 10 1
A W030310 3 10 630 0.03 25 10 1.5
A W030410 4 10 1120 0.03 25 10 2
B W030510 5 10 1120 0.03 27 2 2.5
B W030610 6 10 1120 0.03 27 2 2.5
A W020210 2 10 224 0.02 9 10 1.8
A W020310 3 10 532 0.02 9 10 2.3
A W020410 4 10 750 0.02 7 10 3.2

Tolerance of outer diameter +0.05 Length ±0.2

Instruction for Use of Sintered Vent

  1. Do not damage the pore surface by metals and hard materials. It will cause clog and chip.
  2. Do not polish/grind the pore surface.
  3. Use resin or wooden hammer to inject the vent.
  • Sintered Vent is a trademark of FINE SINTER Co Ltd.
  • The number of pores and effective diameter of vents are subject to change without advanced notification.
  • Please allow 2 weeks lead time for W-type vent due to its special specification.
  • Pease ask sales office for product prices.

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