Cracking rollers are the main components in oil seeds cracking mills. Oil seed cracking rollers are used to crack or crush oilseeds like soybeans, sunflower seeds, cotton seeds, etc. Oil seed cracking rollers are a key component in the oil seed processing industry.
The rollers consist of two corrugated or ribbed cylinders rotating in opposite directions with a very small clearance between them. The clearance, known as the cracking gap, is usually between 0.25-0.35 mm. As the oilseeds pass through this gap, they are cracked into smaller pieces and flattened.
Cracking the oilseeds achieves several purposes. It ruptures the cell structure of the seed to release the oil and improves the efficiency of extracting the oil. It also increases the surface area of the crushed seed for better oil release. The cracking rollers break the seed into uniform sized cracked pieces for efficient downstream separation of hulls and meats.
The rollers are typically made of cast iron and range from 12-54 inches long and 5-20 inches in diameter. They are mounted on bearings and driven by motors and gear systems at different speeds. Proper roller gap adjustment, seed feed rate, and roller corrugation pattern are necessary for optimal cracking. The rollers require routine maintenance and lubrication for smooth operation.
With over 20 years of history the cracking roller is the core product of our company.
A |
Product Name |
Cracking roll/Crushing mill roll |
B |
Roll Diameter |
100-500mm |
C |
Face Length |
500-3000mm |
D |
Alloy Thickness |
25-30 mm |
E |
Roll Hardness |
HS75±3 |
F |
Material |
high nickel-chromium- molybdenum alloy outside, quality gray cast iron inside |
G |
Casting Method |
Centrifugal composite casting |
H |
Assembly |
Patent cold packaging technology |
I |
Casting Technology |
German centrifugal composite |
J |
Roll Finish |
Nice clean and fluted |
K |
Roll Drawing |
∮400×2030、∮300×2100、∮404×1006、∮304×1256 Or Manufactured per drawing provided by client. |
L |
Package |
Wooden case |
M |
Weight |
300-3000kg |