Pneumatic expansion chucks are often used as adapters. Mounted on expansion shafts or support tubes, they ensure secure clamping of the sleeves.
Two WISTEC expansion chucks as adapters allow the reception of 150 mm cores on a 76 mm pneumatic winding shaft.
A dimension sheet of this WISTEC standard expansion chuck can be found here.
By connecting two or more chucks in series and operating them by means of a valve, a fast core change is achieved.
Series connection of two WISTEC adapter chucks, stable design with expansion wedges Expansion range for 150 mm and 6" sleeves
WISTEC Pneumatic Chuck for core inner diameter 76 mm
(3", steel version, maximum support tube diameter 40 mm
Depending on the application, almost all diameters and designs are available.
Pneumatic adapter chucks can be manufactured in all desired lengths according to customer specifications. For larger lengths we recommend two counter-rotating centering clamping flanges. For larger core inner diameters there are hardly any technological limits by using clamping bars, means slats.
WISTEC expansion chuck from 3" to 6", manufacturer-specific length
Adapter clamping head for longer versions with two clamping flanges
WISTEC Pneumatic Chuck for core inner diameter of 350 mm, 16 clamping bars on the circumference; a 40 mm square shaft serves as a holder
In order to be able to move adapter chucks for larger diameters by hand, lightweight materials are used.
In order to be able to move adapter clamping heads for larger diameters by hand, lightweight materials are used.
WISTEC adapter chuck, carrier shaft Ø 300 mm, inner sleeve diameter 406 mm made of PA 6, weight 35 kg at a length of 850 mm
WISTEC adapter clamping head, five clamping shells on the circumference, light weight design, polyamide / aluminium
A version with clamping leafs is recommended if the core wall thickness is small.
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