Alloy steel ring die (20CRMNTI)

1. Basic product information

Chinese and English names

English:Ring Die Made of 20CrMnTi Alloy Steel（Model 560 Pellet Mill）

Chinese: 560 Special for pellet machine 20CrMnTi Alloy steel ring die material: 20CrMnTi Alloy carburizing steel adapter equipment: 560 Series ring die pellet machines (common to feed pellet machines and biomass wood pellet machines)

2. Core advantages of materials (20CrMnTi Detailed explanation of alloy steel)

Chromium-manganese-titanium alloy steel has undergone carburizing and quenching heat treatment. The surface layer has high hardness and wear resistance, and the matrix core has strong toughness. It is not easy to break or chip when it is subjected to continuous extrusion impact during production, which greatly reduces the risk of mold explosion and shutdown.

The wear-resistant service life is doubled. The chromium and manganese alloy elements inside the steel improve the wear resistance. For impurity materials such as sawdust, straw, mixed feed, etc., the loss rate of the inner wall of the die hole is much lower than that of ordinary 45# steel and ordinary alloy steel ring dies, long-term continuous production and replacement cycle is longer.

Temperature-resistant and anti-fatigue, suitable for continuous mass production pellet machines operating in high-temperature extrusion environments for long periods of time. The material is not easy to soften and deform under high temperatures. 24 Repeated extrusion in an hour-long uninterrupted production line is not prone to die hole ellipses and inner wall grooves, and the consistency of pellet molding is stable.

The machining precision is high, the material is discharged smoothly, and the material is forged and formed in one piece. After precision CNC drilling, the inner wall of the die hole is smooth and burr-free, the material extrusion resistance is small, and it is not easy to block the mold; after carburizing treatment, the inner wall is not easy to adhere to the agglomerated raw materials, making cleaning and maintenance easier.

3. Product functions and applicable scenarios

Core role

The ring die is the core molding accessory of the pellet machine. It is used with the pressure roller to extrude powdery and crushed materials into uniform cylindrical particles, which directly determines the particle forming rate, finished product hardness, and discharge speed.

Adapted materials

Livestock feed: pig, chicken, cattle and sheep, fish and shrimp compound feed, pasture feed

Biomass fuel: wood chips, bamboo powder, straw, rice husk, palm shell pellets

Others: organic fertilizer granules, mushroom culture media granules, etc.

Adapting equipment working conditions

560 horizontal ring-die pellet machine is suitable for continuous mass production of small and medium-sized feed mills, biomass fuel processing plants, and organic fertilizer production lines.

4. Customized support

Hole diameter customization: can be processed according to finished product requirements 2.0mm/3mm/4mm/6mm/8mm/10mm/12mm and other die hole diameters;

Compression ratio customization: adjust the compression ratio of the ring die according to the material characteristics (low compression ratio for feed, high compression ratio for biomass fuel) to solve the problems of loose particles, difficult molding, and slow discharge;

Size customization: can be copied according to the original 560 standard equipment size, or the inner diameter, width, and installation positioning holes can be adjusted according to the modified equipment;

Process customization: supports deep hole polishing, double-layer enhanced heat treatment, and reinforced ring molds specifically for materials with high impurities and high hardness.

5. Advantages of use

The quality of the finished pellets is stable and the mold holes are not easy to deform in the long term. The output pellets are uniform in length and firmness, and there is no excessive crushing or hollow pellets, which improves the appearance of the finished product;

The overall cost of use is lower. Although the purchase price is higher than that of ordinary carbon steel ring molds, the wear-resistant life is improved by more than 50% , which reduces frequent procurement, disassembly and replacement labor costs, and is suitable for 24 Hourly continuous production factory;

High disassembly and assembly matching and strict benchmarking 560 The original installation dimensions of the pellet machine, the positioning holes, flange thickness, and inner and outer diameters are accurately adapted. No grinding or modification is required, and the machine can be used after replacement.

6. Daily maintenance and replacement tips

Regular inspection: daily observation of die hole wear, inner wall grooves, and ring die surface cracks; if the material contains sand and gravel impurities, it is recommended to clean the die hole daily;

Maintenance method: Before stopping the machine, transport a small amount of oil raw material to lubricate the mold holes to prevent the material from drying out and clogging the mold; long-term shutdown requires cleaning all the mold holes and applying anti-rust oil;

Replacement standards: When deep grooves appear on the inner wall of the die hole, a large amount of particles are crushed, production capacity drops significantly, or slight cracks appear in the ring die, it is recommended to replace it immediately to prevent the ring die from bursting during production and damaging the pressure roller and main machine.