DIES AND ROLLS
With 65 years of experience in the production of dies, rollers and roller bushings, La Meccanica srl di Reffo guarantees the highest quality and reliability of its products.
DIES AND ROLLS ORDER
Need dies or rolls for your pellet mill ? Fill out the form and send your inquiry. We will contact you as soon as possible.
We have many years of experience in the production of dies and rollers for pellet presses. We produce approximately 2400 dies and 1500 roller casings per year.
Production of dies and rollers for pellet mills
La Meccanica offers new dies and rollers for all brands of pellet presses and reconditions used dies. Thanks to 65 years of experience in the production of dies and roller bushings, La Meccanica srl di Reffo guarantees the highest quality and reliability.
High quality controlled steel. Analysis certificates can be provided upon request. To provide the correct die, we need to know the type of pelletizer and the dimensions of the die being used. We manufacture dies with holes tailored to customer specifications or according to our own collection of designs developed based on years of experience.
Quality system certifications
Dies characteristics
We can guarantee:
- High-quality special steels to high chromium content steels
- Extremely precise manufacturing
- Perforation and mirror polishing of holes
- Vacuum heat treatment
- Minimum die deformation after heat treatment
- Test and control before shipment
- All dies are through hardened to 53-54HRc
Rolls and roller shelles characteristics
- All roller-shells are manufactured using high-carbon steels.
- All roller-shells are surface-hardened up to 58-62 HRc.
- Hardening depth is 6-7 mm for C50 steel.
- The heat treatment is characterised by uniform hardening and hardening depth to ensure maximum durability.
- All our products are finished by skilled staff.
- Roller-shell surface hardening is tested before delivery to ensure premium quality.
Dies production phases
01
Turning process
It is an industrial production process obtained by chip removal and performed with cutting speed and feed rate in order to guarantee a fairly smooth surface, that does not involve technical advantages for the customer but only an esthetic one. The timing is from 2 to 4 hours per piece.
02
Thread
Our plus for the customer is only aesthetic: that is a regular and not jagged thread, lasting about one hour
03
Automatic drilling
Our drilling machines are very precise and for this reason our dies have a perfect grid and there are no errors in the position of the holes.
Drilling, together with hardening, is the most important phase in the production of a die.
04
Against drilling
The main function of the counter-perforation phase is to create a “facilitation” for the pellets to come out due to the lower thrust that occurs in the lateral bands of the die. In some cases the counter-perforation can be performed on all the holes precisely to reduce the pressure required for extrusion.
05
Countersinking process
It is a process that is carried out in the internal part of the die and consists in creating a conical invitation to the holes of 60° to facilitate the entry of the material that would otherwise be prevented by the edge of the hole itself.
06
Die Hardening
The hardening cycle takes 9 hours. The die is loaded into the furnace and tempered at a temperature of 1040 °C. The result is an extremely hard but brittle product.
07
Controll
Time control and continuous quality control in finishes make the product extremely competitive. The die’s surface hardening is tested before delivery to ensure premium quality.
08
Finish
The finish concerns the shoulder of the die and is carried out before the piece is ground.
Ask for Dies and Rolls
Fill out the form and submit your request.
Request from LaMec USA
Via Padre Nicolini, 1 - 35013 Cittadella (PD), Italy
Telefon: 0039 049 9419000
Email: lameccanica@lameccanica.it.
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