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BETA Machinery inherited the legacy and continues the tradition of the historical Officina Meccanica Beta Spa in the field of finishing machinery for textile and nonwoven fabrics. Established in 1959 in Busto Arsizio, Italy, BETA distinguished itself in the design and production of high quality foulards / padders and calenders. In more than 55 years, over 2.000 machines have been built and sold all around the world. At the end of 2010 a new important partner, Comerio Ercole Spa, joined the company. Since then BETA adopted a new corporate structure and became Beta Machinery srl. For Indonesia Market, please contact : PT. DHARMATEK BERKAT UTAMA (P) +62 251 7536 757 (F) +62 251 7536 744 (E) [email protected]
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Beta Machinery srlVicolo Custodi 221052 - Busto Arsizio - VAITALY
Since 1959
Designed and Made in Italy
TEXTILE & NON-WOVEN FINISHING MACHINERY
BETA-ROLL®
forPADDERS
More than2,000
machinesin operation BET
A-R
OLL®Beta-Roll® for Padders
The Patented Beta-Roll® for foulards is a simple mechani-cal system that assures absolutely zero deflection of the roll's surface at any pressure, from min to max. This patent-ed system is based on a roll design that includes an internal steel axle and two oscillating bearings fixed on the internal surface of the tube, which is externally coated with rubber. This internal layout allows the surface to remain perfectly even and uniform along the whole width when subjected to working pressure, because the load is reacted by the inter-nal axle. The internal axle deflects, the oscillating bearings follow the axle deflection but maintain parallel the surfaces of the external rubber-coated tube.Beta-Rolls® are all parallel ground (same diameter for any section) and this is obviously a great contribute to achieve a perfectly even load distribution at any working pressure (from zero up to 100 N/mm), always maintaining a negligible deflection on the centerline.
Exclusive Patented Beta Equipressure Rolls for Padders
Traditional RollThe traditional roll is simply a tube which bends under the working pressure.The deflection is high and the resulting distribution of contact pressure is not even along the roll span, thus leading to bad and not uniform final effects of treatment. Eventually a crown profile is applied (larger diameter at the centerline and smaller diameter toward the tips), in order to partially compensate for the bending. In this way the padder only works at the design pressure, where the deflections are com-pensated. At different pressure values the deflection is not compensated, causing pressure distribution not to be even.
Beta Machinery srlVicolo Custodi 221052 - Busto Arsizio - VAITALY
Since 1959
Designed and Made in Italy
TEXTILE & NON-WOVEN FINISHING MACHINERY
BETA-ROLL®
forCALENDERS
More than2,000
machinesin operation BET
A-R
OLL®Beta-Roll® for Calenders
The Patented Beta-Roll® for calenders consists of a simple mechanical system, unlike complicated systems produced by other manufacturers, and requires very low maintenance, thus drastically reducing machine’s operating costs.
The Patented Beta-Roll® consists of an assembly of three main items: the axle, the internal tube and the external tube. The axle is supported by two oscillating bearings at its ends, where the squeezing load from the pneumatic actuators is applied. The internal tube is supported by other two oscillating bearings placed on the axle and has four sliding races on which the external tube is supported. The bending is therefore reacted mostly by the axle and in part by the internal tube: the residual deflection of the external tube (which works on the fabric) is absolutely negligible and the final pressure distribution is even and constant along the whole roll span thus leading to the best results in the uniformity of treatment.
The Patented Beta-Roll® for calenders allows to reduce the deflection to negligible figures with respect to the traditional construction and this is an essential requirement for calenders in order to achieve a perfectly uniform treatment on all the fabric width.
Some manufacturers adopt crown rolls (larger diameter at the centreline and smaller diameter towards tips) in order to partially compensate for the bending. In this way, the calender works correctly only at the design pressure where the deflections are compensated: but at different pressure values the deflection is not compensated anymore and the problem remains unchanged because the pressure distribution is not even.
Instead, the Patented Beta-Rolls® for calenders are all parallel ground (same diameter for any section) and this is obviously a great contribute to achieve a perfectly even load distribution at any working pressure value (from zero to the maximum). The use of BETA calenders is therefore much more flexible compared to calenders with traditional and crown rolls because it allows to face each treatment and each working pressure while maintaining the best precision and uniformity of pressure distribution with the best final results on fabrics. Beta-Rolls® for calenders can work from zero to max load (up to 300N/mm) always maintaining a negligible deflection on the centreline.
When heat treatment is required by production needs, BETA calender can be equipped with one or more rolls suited to this use. The steel Patented Beta-Rolls® for calenders can be heated by passage of diather-mic oil (250°C max): oil flows from an end to the other end of the roll inside an interspace between the internal and the external tube. The new BETA Patent for calender’s rolls also covers technical aspects in order to assure a perfectly even temperature distribution: the steel heated rolls have an internal layout (in terms of design of oil path and minimal flow resistances) such as to uniformly spread the heat along the whole roll span and roll surface. Temperature deviation between the two roll’s ends results to be no more than ±1°C.
Exclusive Patented Beta Equipressure Rolls for Calenders
