• Transport Package：Iron Case
• Pattern：Honey-Comb, Teeth
• Range：Feed Machinery, Bimasss Machinery
• Inner Diameter：4-10mm
• Condition：New
• Customized：Customized
• Certification：CE
• Mould Life：>1,000,000 shots
• Average Wall Thickness：>3mm
• Using Hardness：>HRC45
• Model NO.：FDSP
• Specification：CE, ISO, SGS
• Trademark：Liangyou
• Origin：Jiangsu China
• HS Code：8436990000
• Production Capacity：800-100h,400-500h

Basic Info.

Model NO. FDSP Using Hardness >HRC45 Average Wall Thickness >3mm Mould Life >1,000,000 shots Certification CE Customized Customized Condition New Inner Diameter 4-10mm Range Feed Machinery, Bimasss Machinery Pattern Honey-Comb, Teeth Transport Package Iron Case Specification CE, ISO, SGS Trademark Liangyou Origin Jiangsu China HS Code 8436990000 Production Capacity 800-100h/400-500h

Product Description

Ring Die Pellet Die for Pellet Mill 
---Ring die for Pellet Mill/Pellet Press/Pelletizer 
  
---Ring die for wood pellet machine,bio-mass pellet machine
 
Other spare parts for pellet mill
 
Good tensile strength, Good abrasion resistance, Good corrosion resistance, Good impact resistance, Good heat resistance, Good fatigue resistance.
Application:
Ring die for pellet machine in poultry feed,livestock feed,aqua feed, bio-mass pellet machine,etc.
We could offer you OEM high chrome steel ring die,Such as for CPM, Buhler, Andiritz, Muyang, Zhengchang pellet mill with different specification.  
 

Type	for feed pellet mill, bio-mass pellet mill
Pattern	honey-comb, teeth,etc
widely application	CPM, Buhler, Andiritz, Muyang, Zhengchang pellet mill,etc

Feature of our ring die:
1Made of imported high-carbon high-chromium stainless billet steel,optimization carbon,thus enhancing wearing and corrosion resistance and 
hardness.
2 It can deal with all kinds of die hole over &1.2mm (&1.2mm included) and compression ratio.
3Ring die can be produced up to 300mm-1500mm in diameter  and 500mm in height.
4In ring die processing, full automatic control, one-time molding for die hole, high smoothness.
 strong tensile strength,good wear resistance, good corrosion resistance,high wear resistance,long life.
 
Advantage of our ring die:
1.Material refining technology,fewer impurities,high purity,largely reducing harmful elements content(such as 
elements S,P ), thus comprehensive mechanical performance of material is raised.
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 
 
Relation 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.
 
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
 
America vacuum furnace:
1.High vacuum degree, no oxidation reaction in ring die surface, ensuring original smoothness of die hole 
inner surface.
2.High vacuum degree,twisting bottom and convection heating minimize ring die deformation.
3.CNC controls process program, ensuring ring die quality stability.
4.With rationally adjusting heat treatment, heat preservation and cooling rate and time, microstructure of 
ring die can achieve its most suitable working conditions.
5.High cooling speed ensures more even distribution of carbide and hardenability and uniformity of ring die is guaranteed, contributing to balance using of ring die.
Small tips from FDSP: How to prolong the service life of ring die
The ring die of the granulator plays an important role, whether the ring die is normal or not determines the formation of particles. Incorrect use and operation of the method is easy to cause granulator ring die cracking, affect the normal production. Effectively enhance the output of the ring die, in addition to the quality of the ring mold itself, the correct operation and maintenance can effectively improve the life of the ring mold.

One. Carry out regular maintenance of granulator

1.Because the granulator is the main equipment of the feed factory, first of all, the factory should carry out daily, weekly and monthly maintenance work on the main equipment to ensure that the granulator maintains a good, stable and non-beating working state. If there is any obstacle of equipment or any worn spare parts special like transmission wheel and spindle beating wear, should be timely maintenance replacement parts, to ensure the normal use of concentric circle ring die.
2.An iron suction device shall be installed at the feed inlet to prevent metal objects from falling into the pelletizing chamber, causing serious damage to the ring die and cracking.
3.When installing the ring die, the wear of the transmission key, the Hoop, the wear-resistant lining ring of the transmission wheel, the wear-resistant lining ring at both ends of the roller shaft, the gap-adjusting wheel, the feeding blade and the cutting knife in the granulating chamber should be checked and replaced in  timely, to keep the granulator running normally. If the hoop wear can not hold the ring die tightly, the vibration of the granulator will be aggravated, which will seriously affect the service life of the ring die and even cause the ring die to crack, so it should be replaced in time, and the wear of feeding scraper will decrease the production capacity.

Two. repair of ring die

1.Because of the different kinds of feed produced, it involves the different ring die material, the rate of opening, the inner taper hole, the effective length of the mould hole and the design of the decompression hole. FDSP is a manufacturer with advanced professional technology, we will according to the customer's feed raw materials and actual use of design, custom-made different processes of the ring die, so as to ensure that the true use of ring die value.
2.It is necessary to replace the new press roll produced by concentric grinding when using the new ring die for shrimp feed.
3.The gap between the roller and the ring die must be controlled between 0.1-0.3 mm. Do not let the eccentric roller touch the surface of the ring die or one side gap is too large which is not  easy to find by eyes when installation, so as not to cause ring die and roller wear aggravate or no material phenomenon.
4.When the granulator starts, the feeding rate must be from low speed to high speed, do not start with high-speed operation, resulting in the ring die and granulator 's damage or ring die plugging due to sudden overload.

Three. maintenance of ring die
1.When the ring die is not in use for a period of time, the original feed should be extruded with non-corrosive oil, otherwise, the heat of the ring die will dry and harden the feed left in the die hole, resulting in the following situations: (1) The die hole is blocked at the beginning of operation, (2) the ring die will crack because the high pressure the ring die under; (3) the hole of the ring die is blocked, the output is reduced and the benefit is reduced.
2.After using the ring mould for a period of time, check whether there is part protruding part in the inner surface of the ring mould. If there is such a phenomenon, the protruding part should be worn off by a grinder to ensure the output of the ring mould and the service life of the press roller
3.If the die hole is blocked and the feed can not going out, the ring die can be soaked or boiled by oil then granulate again,  if it doesn't works, use an electric drill to make the blocked material out, then use oily materials  with fine sands to grinding and polishing.
4.When loading or unloading ring dies, the surface of the ring dies shall not be beaten with hard steel tools such as hammers.
5.Record the working life of the ring mould in each shift so as to calculate the working life of the ring mould.
6.Ring die must be stored in a dry, clean place, if stored in a wet place, will produce die hole corrosion, and reduce the service life of the ring die or can not produce feed.

Equipment is also has life and soul, only love plus, normal operation can extend its life, improve the quality of particles.