Product Details

Product Description

1. CE and Gost certificated.

2. Easy installation and maintenance.

3. High capacity.

4. Long service life.

5. Rich experience.

Our company's die is made by international advanced German gun drill and American vacuum furnace, has long service life and ensure smoothly pelleting and high quality. We can produce many kinds of ring die according to your requirements.

According to the material, the die can be segmented into two kinds, stainless steel with long life and alloy steel with low price. Also according to the die's hole diameter, L/D ratio and size of ring dies fabricated, the dies can be segmented into many different kinds.

♦Technical Parameter for Best Selling Ring Die Wood Pellet Machine


350/420/508/558/678/768	6/8/10/12	40Cr	1000-2000

Dia. of Die (mm) Hole Dia.(mm) Material Lifespan (tons)

♦Technical Parameter for Best Selling Ring Die Feed Pellet Machine

Dia. of Die (mm)	Hole Dia.(mm)	Material	Lifespan(tons)
320/350/400/420/508	2/3/4/4.5/5/6/8/10	4Cr13	5000-10000

Manufacturing Process of Ring Die

The whole ring die processing is under automatic control. We use high quality 40Cr alloy steel or 4Cr13 stainless steel as material;use imported computerized gun drilling machine for punching and realize one-time molding for die hole with a very smooth surface; use vacuum heat treatment furnace for scale-free heating.
The Processing Technology of Ring Die for Making Wood Pellets
Forging billet→Rough Lathing→Punching→Hole Grinding→Heat treatment→Finish machining

Features of Ring Die for Pellet Machine
♥ Advanced Automatic Ring Die Processing Technology. Imported gun driller for drilling; vacuum furnace for scale-free heating; highly polished.
♥ Good Mechanical Properties. Good tensile strength, good abrasion resistance, good corrosion resistance, good impact resistance, good heat resistance, good fatigue resistance.
♥ Long Service Life. The service life of our ring die for making wood pellets can be up to 2000 tons; and for making feed pellets can be up to 10000 tons.
♥ High Quality Pellets. Finished pellets made by our ring die have smooth surface and high density.
♥ Different Hole Dia. to choose. Ring die diameter for feed pellet mill ranges from 2mm to 10mm; ring die diameter for wood pellet mill ranges from 6mm to 12mm.

Compression Ratio of Ring Die

(Compression Ratio= L/D L: Effective Die Hole Pelleting Length; D: Effective Die Hole Dia)
Generally speaking, the higher the compression ratio, the denser the finished pellets. But it does not mean that the higher the compression ratio, the better the pellet quality. Compression ratio should be calculated based on your raw material for making pellets. Commonly compression ratio is inversely proportion to the hardness of raw material, the harder the raw material, the smaller the compression ratio.