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How To Select Pellet Machine Mold Compression Ratio
Just How To Choose Pellet Equipment Mold Compression Ratio?

Before the pellet maker mold is made use of, the compression ratio have to be adjusted and also determined. This is primarily to change the size of the mold, the thickness, the taper and also reaming level of the bell mouth, the material of the mold, the solidity of the mold, as well as different products, there are different mold compression ratios.

So we need to readjust as well as calculate according to our real situation, so what is the change computation approach of the pellet maker mold compression ratio?

Compression Ratio Of Pellet Machine Mold

The compression ratio of the pellet maker die refers to the ratio of the reliable length of the die hole of the die to the die size, as well as is an index showing the extrusion toughness of the pellet equipment.

Pellet maker mold compression ratio = mold opening size/ effective working size of mold hole

For a mold with a straight hole, the reliable length of the mold hole is the complete thickness of the mold, and the tiny diameter is the size of the mold opening itself.

Presumption: The size of the die hole is 6mm, and also the density of the ring die is 45mm

Compression ratio= 6/45= 1:7.5.

The ring mode compression ratio is 1:7.5.

For the release action hole and also the external tapered opening, the efficient size of the die hole is the overall thickness of the mold minus the size of the release opening or the size of the external tapered opening, and also the aperture of the little size area is the aperture for determining the compression ratio.

Presumption: the size of the ring die hole is 8mm, the die density is 66mm, and the release opening is 18mm.

Compression ratio= 8/( 66-18)= 1:6.

The ring mode compression ratio is 1:6.

Compression ratio is a ratio. For the very same compression ratio, its aperture and also efficient working length might be various.

How To Pick an Ideal Mold Compression Ratio?

1. The aperture size and also result of the mold are carefully related to the internal size of the pellet equipment mold and also the structure of the raw products. The typical aperture of 8-10 mm normally made use of in the market is called traditional information.

The pellet equipment larger than 10 mm requires higher pressure for molding., Relatively speaking, the wear is additionally big, individuals normally call it a biomass pole making maker or a rod making maker.

2. The effective density of the mold is really crucial for the molding of raw materials.

If the mold is too thick, the molding time of the raw product is longer, the density of the particles is relatively large, the extrusion is more difficult, the mold is slim as well as very easy to break, and the thickness of the particles is reasonably tiny.


The pressing temperature is reduced, the outcome is high, yet the molding rate is reduced or the molding is poor.

3. The compression ratio of abrasive tools is determined according to the raw materials. The compression ratio of poplar wood is 1:6, the compression ratio of ache wood is 1:7, the compression ratio of hard wood is 1:5, and also the compression ratio of shavings is 1.: 5.5, the compression ratio of corn stalk is 1:6.5.

From these easy figures, the compression ratio of different resources is various. richi pellet , the smaller sized the compression ratio, and the cosy the raw material, the better the compression ratio.

That is to say, the much more cosy the raw material, the much easier it is to be molded. The more cosy resources contains a lot more fibers, and the even more fiber-containing materials are less complicated to shape.

4. Each little opening straight has 6 mm, 8 mm, as well as 10 mm. This 1 represents the diameter of each small opening. If the size of the ring die opening is 8 mm, then this 1 represents 8, And 6 represents the reliable aperture.

The reliable aperture amounts to the size of the hole increased by the reliable aperture size, which is 6 * 8= 48, which is 8:48, 8:48 is streamlined to 1:6, 1: 6 is the compression ratio of poplar wood. It is converted by doing this.

The high quality of the biomass pellet maker's output relies on the compression ratio of the ring die. But if wood pellet mill near me does not have high demands for the molding rate of your pellets, after that you can appropriately Reduce the compression ratio, which can not just enhance the result, yet likewise reduce the life span of the mold and also journalism wheel.

5. Roughness is likewise a vital indicator to gauge the quality of ring die. Under the exact same compression ratio, the greater the roughness worth, the greater the extrusion resistance of the sawdust fragments, as well as the more difficult it is to release the material.

Excessive roughness also influences the quality of the particle surface. The ideal roughness worth must be 0.8-1.6. in between.

What To Do If The Mold Compression Ratio Is Too Huge.

1. Experienced operators will certainly readjust the moisture content of the raw materials or adjust the space in between the ring molding rollers, and also the pellets can be smoothly released without transforming the compression ratio. The procedure needs to be tape-recorded as well as tested detailed.
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2. On top of that, the 2nd pressurization can make the mold with a bigger compression ratio smaller sized, however changing the ring mold will affect the solidity of the ring mold, so it requires to be identified according to the real wear of the mold.

The roughness of the die hole of the pellet machine is also an essential sign to determine the quality of the mold, and the ideal roughness worth need to be in between 0.8-1.6.

Under the same compression ratio, the bigger the roughness worth, the greater the particle extrusion resistance, and also the more difficult it is to release the product. Too much roughness likewise influences the high quality of the fragment surface area.

Read More: https://ekzark.com/flat-die-vs-ring-die-pellet-machine/