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Products        
 
     
         "Detchai" is the brand name of the rice mill rubber ball produced by Detchai Rubber
Company. In the local market or ball is named “Sport Man”.The rubber used is synthetic
rubber called NBR (Acrylonitrile Butadiene Rubber )or nitrile rubber. It has high abrasion
resistance.
 
Chemical Structure of the NBR rubber
 
With the abrasion resistant rubber plus the highly selected supplement of grade A the
rubber mill can work at least for 50 hours.
           
........................................................................................................................................................................................................................
  The objective in milling rice is to separate the rice
husk from the grain. If possible ,the grain should
not be broken.Thus Detchai rubber rollers have
been designed to meet the need of each type of
grains in different rice mills.
The strength is in the
range of 87 +_5 IRHD Shore A
. Besides the size
of the roller is an important factor for specifying
the rotation speed ( rpm). The size is 10”x10”
( 254mmx254mm).
This is the standard size with
the suitable rotation speed to cause the slip stick
condition. Many customers misunderstand that if
the velocity is increased more grains can be obtained.
But in fact if the velocity is increased the slip stick
condition is reduced because the rubber surface's
molecule is wavy across the surface are and the
friction between the rubber surface and the milling
stone is reduced. The percentage of the husks
peeling off is thus reduced.

   
The abrasion between the two surfaces causes heat between them. The tensile strength
and the modulus are reduced. But because of the formula used by Detchai which uses
fillers with high tensile strength the abrasion can be lessened by 20 percent from our
lab experiment.
   
The core of the rubber roller is an important part . We have our own factory to produce
these cores.
Thus we can design our cores to suit our needs.
     
     Because of this and other details that our company emphasizes we are confident to
Present the Best Number 1 rubber roller in Thailand to you.
........................................................................................................................................................................................................................
SPORTMAN:
Very high peeling efficiency with low proportion of broken
rice grains, Exclusive patent NBR formula, neat curing,
and high quality of the rubber materials will ensures that
Sport man has highest degree of heat resistance & durability.
Specification:
Material: NBR synthetic Rubber
Model:    Size 10" x 10" (254 mm x 254 mm)
                Hardness 87± 5 IRHD Shore A
Color:      Deep Blue, Yellow
Drum:      Cast Iron, Aluminum
 
     
 
SIZE
A
B
C
D
E
F
G
H
I
J

10"x10"
4 Holds

254
±
0.5
203
±
0.5
193
±
0.5
142
±
0.3
116
±
0.5
11
±
0.5
254
±
0.5
116
±
0.5
8
±
0.5

127
±
0.5

 
 
 
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