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Ring die

Ring-die is divided into two kinds according to the raw material type: one is Stainless Steel Ring-die [X46Cr13 / INOX (4Cr13)], the other is Alloy-Steel Ring-die [20CrNiMo (SAE-8620) or 20CrMnTi (20MnCr5)];

Classification :

Ring Die And Roller Shell

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PRODUCT DETAILS

As per the fixing mode, it is divided into ring die with clamp fixture and ring die with bolts fixtures.

Technical Specification

Stainless Steel Ring-die: Material Type: X46Cr13 / INOX (4Cr13); Hardness: HRC55-58 (For wood pellet mill); HRC52-55 (For feed pellet mill); Heat treatment by Vacuum Furnace;

Alloy-Steel Ring-die: Material Type: 20CrNiMo (SAE-8620) or 20CrMnTi (20MnCr5); Hardness: HRC60-62 (For wood pellet mill); HRC58-60 (For feed pellet mill); Heat treatment by pit-type cementation furnace (Cementation Depth: 1.0-1.5mm: 12-14 hours, Cementation Depth: 1.8-2.0mm: 24 hours).

Chemical Specification

DIN	Stoff nr	C%	Mn%	P%	S%	Si%	Ni%	Cr%	Mo%	Ti%
X46Cr13	1.4034	0.42 - 0.50	<1,000	<0.040	<0.030	<1,000	<1,000	12.5-14.5
SAE-8620	1.6523	0.18- 0.23	0.7- 0.9	<0.04	<0.04	0.2-0.35	0.4-0.7	0.4-0.6	0.15-0.25
20CrMnTi		0.17-0.23	0.8-1.1	<0.035	<0.035	0.17-0.37	<0.30	1.0-1.3	<0.25	0.04-0.10

Range of application: These ring- dies will be done strictly according to the customer’s drawing or requirement. They can be used as all kinds of feed pellet mill or wood pellet mill.

Packaging And Shipping

The company always adheres to the business philosophy of "quality first, reputation foremost" and the business principle of "customer first, quality as the soul". We strictly follow ISO quality standards to control the entire production process, strive for excellence in every product, and do our best to provide customers with safe, reliable, high-quality, well-designed, cost-effective products and efficient and fast delivery services.

EXHIBITION

All of the company's products have passed the strict technical testing and certification of relevant national departments. With stable and reliable quality and efficient production and supply capabilities, the company has won the wide recognition and good reputation of global customers and continues to export high-quality Chinese pellet mill core component products and advanced manufacturing technology experience to overseas markets.

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FAQ

Q: What are the common wear-resistant materials used in ring dies?

A: The mainstream materials used are high-chromium stainless steel and alloy steel forging. For processing biomass raw materials such as wood chips and straw, high wear-resistant alloy steel is preferred. Corrosion-resistant stainless steel ring dies are suitable for processing livestock, poultry and aquatic feed.

Q: Are the ring die and pressure roller skin core components of a pellet mill?

A: Both are core consumable parts in pelleting. The material is extruded and formed by the ring die hole, and the pressure roller skin presses the material to complete the pelleting operation, which directly affects the pelleting quality and the overall machine output efficiency.

Q: What are the advantages of forged rings compared to ordinary cast rings?

A: The internal metal structure of the forging is dense, without defects such as pores or sand holes, and its tensile strength, wear resistance and fatigue resistance are more outstanding, resulting in a longer service life under long-term continuous operation.

Q: What equipment is suitable for forged rings?

A: Forged rings are mostly used for ring die blanks and load-bearing ring components in large machinery. They are semi-finished products forged from ring dies and are suitable for various high-load pellet mill pressure-bearing structures.

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