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Tel: +86-021-3636 2892
M:    +86-186 218 20086
Fax: +86-021-6305 1741
E-mail: jeff.z@shcosmolink.com
Add: Room 503, XieTu Road NO.788,Luwan District,Shanghai,China
 

Polyurethane rollers and gum

Polyurethane rollers and gum covers
For cold mill, pickling, galvanizing and color coating equipment.
Category:
Coating roller
Pickup roller
PU roller
Chrome roller
Squeezing roller
Bridle roller
Tension roller
PU sleeve
Rubber sleeve
PU-UF sleeve

Main Product:
 
Low-hard Series (0-45°A)
 
The printing roller was made of PER flexible polyurethane, this technique is international advanced and originated in China, Applied by the progressive teeming technology, accurate surfacing working and original material formula.
 
 
Feature:
1. Soft feeling: For the marking roller, the pressure is 1/2 of the NBA rubber roller, at the same width.
2. Wear resistant: The wearing resistance is 2-3 times of the NBA, at the same circumstance.
3. Strong stability: Size and hardness do not change during the regular production.
4. Good hydrophilcity: The material of the roller has the natural hydrophilcity; this can reduce the alcohol concentration of the fountain solution greatly.
5. Balancing ink distribution: full dose ink distribution, big frictional coefficient, multi-grits, ensure the balancing quality.
6. Suitable for UV printing: good solvent resistance and UV resistance.
 
 
Hardness Standard (Shore A°)
 
Hardness
(Shore A°)
Hardness tolerance
Hardness tolerance on one Roller
 
Our standard
Occupation standard
(high class)
Our standard
Occupation standard
(high class)
 
25
±2
±2
≤2
≤2
 
30
±2
±2
≤2
≤2
 
35
±2
±2
≤2
≤2
 
Test according to Chinese state standard GB9894.
 
 
Process Criterion (mm)
 
Diameter
Diameter tolerance on one Roller
Circular run-out tolerance
 
Our standard
Occupation standard
(high class)
Our standard
Occupation standard
(high class)
 
≤40
±0.05
±0.15
0.02
0.04
 
40-60
±0.05
±0.15
0.02
0.06
 
60-100
±0.05
±0.15
0.02
0.08
 
>100
±0.05
±0.15
0.02
0.10
 
Physical properties
 
Hardness
(Shore A°)
Tear resistance
(N/cm)
Divulsion elongation (%)
Impact resilience (%)
Permanent deformation (%)
Akron abrasion loss
(cm3/1.61km)
 
25
≥500
>800
≥15
≤5
<0.02
 
35
≥500
>700
≥15
≤5
<0.02
 
45
≥500
>650
≥15
≤5
<0.02
 
 
 
 
Physical properties
 
item
More or less
index
Dross, bubble
 
0
Hardness (shore A)
 
55±2
Parallelism of roller face  mm
0.16
Concentricity  mm
Ø 0.03
Roughness of roller face
0.8
Tensile strength Mpa
30.5
Elongation at break  %
450
Pull apart permanent deformation %
3
Tear strength (right angle) Kn/m
39
Akron abrasion   cm3/1.6Km
0.1
Experiment liquid resistant (48h x 230C) toluene
10
 W% Ethyl acetate
40
 
Hard PU (Polyurethane) Series (65-95°A)
The hard PU roller is finished by the one-step complete teeming machine, no needs for any other reserved molds. Absolutely no any dross or bubbles on the surface of the roller, the roller is produced with the uniform hardness, high intensity, excellent abrasion resistance and tiny distortion. Meanwhile, it can be produced with good performance on long durability and high temperature & strong acid resistance.
The hard PU rolls are widely using on
Cold rolling mill LINE
Continuously annealing line
Continuously galvanizing line
Color coating line
Tension roller, TENSION ROLLER Bridle roller marking roll embossing roller
 
 
Physical properties
 
Shore hardness (A) 
880
 
Tensile strength  /Mpa
≥45
 
100% Tensile modulus
≤9.7
 
300% Tensile modulus
≤14
 
Compression set /%
≤4.6
 
Elongation at break /%
≥680
 
Tear strength  N/m
≥96.8
 
Rebound  / %
≥90
 
Taber wear
9.0
 
 
Reference List
 
1. PANGANG GROUP COMPANY LTD.
Product:  
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
2. JIGANG GROUP CO., LTD 
Product: 
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
 
3. WUHAN IRON AND STEEL (GROUP) CORP.
Product: 
Special rubber sleeve
PU coating roller
4. Southwest Aluminum (Group) Co
Product: 
PU coating roller
 
5. KUNSTEEL HOLDING 
Product: 
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
6. FUJIAN SANGANG
Product:
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
 
7. MCC HENGTONG COLD ROLLING TECHNOLOGY CO., LTD
Product: 
Special rubber sleeve
8. YICHANG THREE GORGES QUANTONG COATED AND GALVANIZED PLATE CO., LTD
Product:
PU coating roller
 
9. HBIS TANG GANG 
Product: 
PU coating roller
10. YIHE PHUI ENTERPRISE CO., LTD.
Product: 
PU coating roller
Special rubber sleeve
 
11. SHANDONG GUANZHOU CO., LTD.
Product:  
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
12.TIANJIN XINYU 
Product:  
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve
 
13.BLUESCOPE STEEL 
Product:  
PU coating roller
Special rubber sleeve
14.JIERU SHANGHAI 
Product:
PU tension roller
 
15.SHANGHAI OUDA HAIWEI
Product:  
PU coating roller
PU tension roller
PU squeezing roller
Special rubber sleeve