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How To Select Pellet Machine Mold Compression Ratio
Just How To Select Pellet Maker Mold Compression Ratio?

Prior to the pellet maker mold is used, the compression ratio should be changed as well as determined. This is primarily to readjust the diameter of the mold, the thickness, the taper and also reaming level of the bell mouth, the material of the mold, the hardness of the mold, and also different materials, there are various mold compression ratios.

So we have to change and also compute according to our real circumstance, so what is the adjustment calculation technique of the pellet equipment mold compression ratio?

kahl pellet mill Of Pellet Machine Mold

The compression ratio of the pellet equipment die describes the ratio of the reliable length of the die opening of the die to the die size, as well as is an index reflecting the extrusion toughness of the pellet maker.

Pellet maker mold compression ratio = mold hole diameter/ reliable functioning length of mold opening

For a mold with a straight hole, the effective size of the mold opening is the total density of the mold, and also the tiny diameter is the size of the mold hole itself.

Presumption: The diameter of the die hole is 6mm, and also the thickness 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 the outer tapered opening, the effective size of the die hole is the overall thickness of the mold minus the size of the release hole or the length of the external conical opening, as well as the aperture of the small diameter section is the aperture for computing the compression ratio.

Assumption: the size of the ring die opening is 8mm, the die density is 66mm, and also 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 exact same compression ratio, its aperture and also effective working length might be various.

Just how To Choose a Suitable Mold Compression Ratio?

1. The aperture dimension and outcome of the mold are closely pertaining to the inner diameter of the pellet machine mold and also the structure of the raw products. The basic aperture of 8-10 mm typically made use of in the industry is called conventional information.

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

2. The efficient density of the mold is really essential for the molding of basic materials.

If the mold is also thick, the molding time of the raw material is much longer, the thickness of the bits is relatively big, the extrusion is more difficult, the mold is thin as well as easy to damage, and also the density of the fragments is fairly small.


The pressing temperature level is reduced, the output is high, however the molding rate is low or the molding is poor.

3. The compression ratio of unpleasant tools is identified according to the raw products. 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 straightforward figures, the compression ratio of different raw materials is different. The more difficult the raw material, the smaller the compression ratio, as well as the fluffy the raw product, the higher the compression ratio.

That is to say, the a lot more fluffy the raw product, the simpler it is to be built. The even more fluffy resources includes a lot more fibers, and also the even more fiber-containing products are simpler to form.

4. Each little opening directly has 6 mm, 8 mm, and also 10 mm. This 1 represents the diameter of each little hole. If the size of the ring die opening is 8 mm, then this 1 stands for 8, And also 6 stands for the reliable aperture.

The effective aperture is equal to the size of the hole increased by the efficient aperture length, which is 6 * 8= 48, which is 8:48, 8:48 is simplified to 1:6, 1: 6 is the compression ratio of poplar wood. It is transformed by doing this.

The quality of the biomass pellet equipment's result depends upon the compression ratio of the ring die. But if the consumer does not have high requirements for the molding rate of your pellets, then you can appropriately Lower the compression ratio, which can not just boost the output, yet likewise reduce the life span of the mold and the pressing wheel.

5. Roughness is additionally an essential sign to measure the top quality of ring die. Under the very same compression ratio, the better the roughness value, the higher the extrusion resistance of the sawdust bits, and also the more difficult it is to release the product.

Too much roughness likewise impacts the high quality of the particle surface area. The proper roughness value need to be 0.8-1.6. in between.

What To Do If The Mold Compression Ratio Is As Well Huge.

1. Experienced operators will certainly readjust the dampness web content of the raw materials or readjust the gap between the ring molding rollers, and also the pellets can be efficiently discharged without altering the compression ratio. The procedure needs to be taped as well as evaluated step by step.
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2. Additionally, the 2nd pressurization can make the mold with a larger compression ratio smaller, but customizing the ring mold will influence the solidity of the ring mold, so it needs to be determined according to the real wear of the mold.


The roughness of the die hole of the pellet maker is also an essential sign to measure the top quality of the mold, and also the ideal roughness value need to be between 0.8-1.6.

Under the same compression ratio, the larger the roughness worth, the better the bit extrusion resistance, and the more difficult it is to discharge the material. pellet grinder machine affects the quality of the bit surface.


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