Tel: (+86-21)6431-1583
Fax: (+86-21)6431-1572
Add: 25D, Tower 3,
No.2601, Xie Tu
Road, Shanghai
200030 P.R.China
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Rubber Graphite Strip |
Reasons for choosing rubber graphite material:
Coefficient of friction is the lowest
Each roll can avoid the cost of wasted power 200.000, 00RMB/yr.
Seal trip will typically last 2 years or more
Coefficient of thermal expansion is the least
Professional Paper Machine Optimization Team/ Topping Products and Services
We use the Coldwater Rubber-Graphite seal material to produce suction roll seal strip.
We are right here to provide you the most convenient and highest quality product and service.
Our seal strip prevents any heat from dry friction from transferring into the roll where damage can occur.
Self-lubricating and lower physical properties allow the seal to wear-in to the shape of the roll sooner, giving faster vacuum on start-up and better fit to rough shells.
Available in complete kits including seal strips, silencers, deckles and load tubes
Technical Data
sort |
Coldwater |
Rubber graphite A |
Rubber graphite B |
Conclusion |
Coefficient of friction |
12 |
20 |
19 |
Coldwater has the lowest |
Coefficient of linear thermal expansion |
10×16-6 |
13.6×10-6 |
26×10-6 |
Coldwater expends the least |
Hardness vs. temperature: shore D
20℃—60℃—120℃ |
77-74-40 |
76-75-72 |
87-86-82 |
Coldwater is able to reflect to high spectrum quickly, hardness instantly decrease |
Thermal conductivity (W/Mk) |
7.0 |
10.4 |
8.6 |
Coldwater is the lowest, to keep heat out of the roll |
Water absorption
(% Volume) |
0.18 |
0.46 |
1.0 |
Coldwater has the smallest volume change |
Graphite content |
>50% |
<50% |
<50% |
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