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Ring die for Feed Pellet Mill/Pellet Press/Pelletizer
Ring die for wood pellet machine, bio-mass pellet machine
Ring die for pellet machine in wood, sawdust, bamboo, coconut shell etc. It could be stainless steel or carbon steel.
1. Material refining technology makes high purity and low harmful element content (such as S,P ).
2. Through roll forging, material is processed and strengthened and material fibre is complete and uniform, which increases
integrated mechanical performance of material.
3. FDSP Company has the world advanced forging equipment and technology, electronic data processing systems and
perfect quality control system.
4. Ring die blank, generally chromiumalloy roll forgings, some factories use 45 ordinary carbon steel.
5. Hardness of blank must be controlled, ranging from HB170 to HB220. If the hardness is too high, the drill is easy to break
and happens with die hole when drilling. If hardness is too low, the surface finish of die hole will be not good.
6. In order to control blank inner material uniformity, every blank must be carried out with fault detection, which can avoid
defects such as flaw, pore-free, crackle and inclusions etc.
7. After machining and heat treatment process, hardness of ring die can be up to HRC 52-58 (inner diameter less than
350mm), HRC50-56 (inner diameter more than 350mm), more wearable and anti-corrosion.
8. In order to control hardness uniformity of ring die after heat treatment, we choose more than three points in each part of
trisection of peripheral direction to test hardness and take average. The difference of hardness value between each part
should not be higher than HRC4.
9. According to the principle of metal material science combined with gas quenching and C, Cr, Mn, Ni, V elements content is
optimized, forming the standard of ring die.
Production process:
1. Precision Machining:
CNC machining center
CNC machining center assure high dimensional accuracy, geometric tolerance and surface roughness.
2. Hole Machining
Germany gun drill
The quality and service life of die is guaranteed.
3. Vacuum Hardening
Relations between die hole structure and pelleting:
Straight hole and release stepped hole is suitable for compound feed processing.
External conical hole suitable for the processing of high-fibre feed like de-fat chaff.
Internal conical hole and compression-type stepped hole applicable for the process of herbage
powder feed of light proportion.
We should try to avoid using release stepped hole(pressure-relief vent).
Because discharing is not easy for holes in the rows of the edge of ring die, pressure-relief vent is designed there.
Other Spare Parts
We can customize all the spare parts for the pellet machinery. Like roller shell, hammer mill, bolts etc.
Jiangsu Liangyou Agro Machinery Co., Ltd has about 20 years of experience in the comprehensive development and utilization in agriculture field. It covers an area of 15000 square meters, locating in the zhongguancun science &technology industrial park in Liyang City, JiangSu Province, PRC.
FDSP has sold Feed machinery silo biomass and fertilizer machinery throughout China and exported to Korea, South Africa, Russia, Thailand, Taiwan, Philippines, Malaysia, Australia, Egypt, Syria, Nigeria, Ethiopia, India, Bangladesh, Pakistan, Iran etc.
Customers From All Over The World
We insist on "Faith & Federation , Develop & Creativity, Service & sincerity , Pluck & Prestige " , also we own outstanding R&D team with the sense of innovation and cooperation.
Certifications:
FDSP has obtained ISO9001:2008 international quality system certification, CE certification for feed machinery, fertilizer machinery, biomass equipment and complete sets of production line, SGS certification.
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