Carbon Fiber Rollers are designed for reduced weight and high critical speed. Lightweight, low-inertia rollers allow faster web speeds, reduce vibration, decrease waste and improve product quality.
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Reasons for Choosing Composite Cores and Rollers
Reasons for choosing Composite Cores and Rollers includes:
- Up to 75% lighter than metals.
Lighter rollers mean less inertia and higher speeds
- High stiffness to weight ratio.
Reduced machine wear
- Increased Machine Life.
Less wear and tear on bushing, bearings and journals
Applications of Composite Cores and Rollers
Applications of Composite Cores and Rollers includes:
- Printing Press Rollers
- Process Rollers
- Idler Rollers
- Blown Film Lines
- Laminating Lines
- Paper and Film Machines
Features of Composite Cores and Rollers
Features of Composite Cores and Rollers includes:
- FILAMENT WOUND CONSTRUCTION
- CARBON FIBER AND/OR FIBERGLASS CONSTRUCTION
- LARGE RANGE OF DIAMETERS
From 1 inch to 42 inch
- LARGE RANGE OF LENGTHS
Up to 30 feet
- CUSTOM ROLL ENDS
Thru Shaft w/ bearings, Live Shaft, Internal
Bearings w/ shafts
- DYNAMIC BALANCING
- WALLS AS THIN AS 0.060"
- CUSTOM FINISHES AND COATINGS AVAILABLE
Mechanical Properties of Composite Cores and Rollers
The mechanical properties of Composite Cores and Rollers are listed in the table below.
| Material Properties |
E-Glass |
Commercial Carbon |
High Modulus Carbon |
| Flexural Modulus Longitudinal, 106 x psi |
5.5 |
14.0 |
21.0 |
| Flexural Modulus Circumferential, 106 x psi |
1.1 |
5.0 |
7.5 |
| Tensile Strength Longitudinal, psi |
115,000 |
130,000 |
130,000 |
| Tensile Strength Circumferential, psi |
N/A |
36,000 |
36,000 |
| Compressive Strength Longitudinal, psi |
5,000 |
130,000 |
130,000 |
| Compressive Strength Circumferential, psi |
26,000 |
50,000 |
50,000 |
| Shear Modulus, psi x 106 |
1.0 |
1.0 |
2.2 |
| Shear Strength, psi |
8,000 |
8,000 |
8,000 |
| CTE Circumferential, in/in/°F x 10-6 |
8.6 |
7.1 |
6.4 |
| CTE Longitudinal, in/in/°F x 10-6 |
4.8 |
0.17 |
-43.6 |
| Poisson's ratio, Nuxy |
0.27 |
0.24 |
0.69 |
| Density, Lb/in3 |
0.072 |
0.058 |
0.058 |
Over Wrapping Existing Cores and Rollers
Existing Cores and Rollers can be over wrapped for extended life. The table below shows the mechanical properties of Composite Cores and Rollers for Overwrap Repairs.
| Material Properties |
E-Glass |
Commercial Carbon |
| Flexural Modulus Longitudinal, 106 x psi |
1.2 |
1.3 |
| Flexural Modulus Circumferential, 106 x psi |
8.0 |
19.0 |
| Tensile Strength Longitudinal, psi |
5,000 |
6,000 |
| Tensile Strength Circumferential, psi |
210,000 |
210,000 |
| Compressive Strength Longitudinal, psi |
17,000 |
35,000 |
| Compressive Strength Circumferential, psi |
138,000 |
185,000 |
| Shear Modulus, psi x 106 |
0.8 |
1.0 |
| Shear Strength, psi |
8,000 |
8,000 |
| CTE Circumferential, in/in/°F x 10-6 |
3.7 |
-0.09 |
| CTE Longitudinal, in/in/°F x 10-6 |
13.3 |
11.9 |
| Poisson's ratio, Nuxy |
0.08 |
0.02 |
| Density, Lb/in3 |
0.072 |
0.058 |
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This information has been sourced, reviewed and adapted from materials provided by Amalga Composites, Inc.
For more information on this source, please visit Amalga Composites, Inc.