| Gamma 2 |
| The GAMMA 2 is a two roll machine, all hydraulic, with the bottom roll being of high molecular density URETHANE.The Urethane roll presses onto the top roll with the material in-between and because of its elasticity it tries to wrap the sheet around the top roll. As the rolling progresses a radius is imparted to it by this process. |
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| The range of the thickness and width the GAMMA 2 can be used is: |
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| For material with 36,000 psi Yield Strength or 250N/mm2 |
| 0,4 to 3,5mm thickness |
| 500 to 1600mm width |
| 0.015 to 0.138" thickness |
| 20 to 63" width |
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| For material with 50,000 psi Yield Strength or 350N/mm2 |
| 0,4 to 2,0mm thickness |
| 500 to 1600mm width |
| 0.015 to 0.079" thickness |
| 20 to 63" width |
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| Optional equipment on the Gamma 2 |
| Automatic ejection of part |
| Automatic blank feeding system |
| These are the same used on the Four-Matic pages |
| Every Gamma 2 is specifically designed per customer's requirements. Other special |
| lengths and thickness capacities may be built by COMAL ITALIA to fit your exact need. |
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| This is a Gamma 2 with manual table feed and top support with a rodless cylinder ejection system. |
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A unique feature of COMAL's two roll machine is that it was designed with quick change over of the top roll in mind. The traditional method in the industry to obtain different diameter parts on the urethane two roll machines is to insert a tubular mandrel over the one and not easily removable top roll to obtain different diameters of rolled cylinders. COMAL decided on its approach in order to solve the problems associated with the industry wide design, where debris, chips and dirt enter in-between the top roll and the mandrel…then spill out onto the urethane roll and embedding themselves to cause scratches and marks on the rolled part , beside damaging the urethane roll's surface! An example of this tubular mandrel is below: |
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| Rolling some heavy Stainless Steel cylinders on a large GAMMA 2 (Covers removed) |
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| A Gamma 2 with top support and side support |
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| SPECIAL FEATURES OF THE GAMMA 2: |
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| * High productivity. More than 4000 pieces per day |
| * Perfect pre-bending |
| * Easy to operate, bending with one pass |
| * No damage to the plate neither outside nor inside |
| * Punched, engraved or pierced plate may be rolled without deformation |
| * Rolling of materials from the softest to the hardest |
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| High precision pipes, tubes and cylinders are rolled on the Gamma 2. Above is an example…and there are many more! |
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