DOUBLE SUPPORT PNEUMATIC
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DOUBLE SUPPORT PNEUMATIC EXPANDING SHAFTS THE POWER OF PNEUMATIC TECHNOLOGY Our pneumatic expanding shafts deliver exceptional torque transmission, making them the ideal choice for roll rewinding and roll unwinding in packaging applications. With a cutting-edge design, these shafts serve as reliable drive shafts, ensuring smooth and efficient operations. Expansion is achieved through a sophisticated system of inflatable chambers strategically positioned beneath each row of expanders, guaranteeing precise control and consistent performance throughout the process. DURABLE MATERIALS FOR EXPANDING SHAFTS Our expandable shafts feature a robust construction designed to meet your specific requirements. The shaft body is available in standard diameters, offering a compelling quality-price ratio with aluminum alloy extrusion. Additionally, upon request, we provide a wide range of steel options for the shaft body, allowing for tailored solutions. The journal ends of our shafts are crafted from AISI 304 steel as a standard material, ensuring strength and reliability. However, we also offer various steel options to accommodate individual needs. The use of aluminum extrusion provides exceptional rigidity, comparable to AISI 304 steel’s modulus of elasticity, enabling the construction of highly rigid airshafts.

STANDARD CORE SIZE: Ø 69 mm Special body size upon request: from Ø 25 mm to Ø 300 mm AIR SHAFT MAIN PARTS: Shaft body Dibujado: Aprovado:

VALVE POSITION & STANDARD JOURNAL END: 50 SQUARE SHAPE: 30mm side Valve postition options: Radial expansion area Radial valve type Radial valve type CIRCULAR SHAPE: Ø 40 mm Valve postition options: Radial or axial expansion area TRATAMIETNO: DOUBLE SQUARE SHAPE: 30 mm side 30 Axial valve type EJEMATIC 1:2 expansion area expansion area GRUPO: Cantidad: Cliente: ACABADO: Equivalencias de rugosidad Escala: expansion area expansion area Dibujado: TRATAMIETNO: expansion area expansion area 10 expansion area SQUARE 30mm side + CIRCULAR80 SHAPE: Ø 40 mm DOUBLE CIRCULAR SHAPE: Ø 40 mm...

ASSEMBLY TO MACHINE: Ejematic offers flange mounted and foot mounted safety chucks and also offers rolling supports to cover all airshaft assembly to machine typologies. SAFETY CHUCK FLANGE MOUNTED SAFETY CHUCK FOOT MOUNTED ROLLING SUPPORT

TECHNICAL INFORMATION: Core size Ø Expanding range with short expansors Ø Expanding range with long expansors Ø Number of expansors Grapping radial forde (6bar) Gripping torque transmition with cardboard cores Gripping torque transmition with steel cores Grapping torque transmision with steel cores Air expanding shaft weight (without jornal ends nor covers) Recommended inflation pressure

ORDER CHECKBOX: ASSEMBLY TO MACHINE Double support air shaft Safety chuck flange mounted (square journal ends) Safety chuck foot mounted (square journal ends) Safety chuck flange mounted + rolling suport (square + circular journal ends) Safety chuck foot mounted + rolling suport (square + circular journal ends) Rolling supports (double circular) CORE DIAMETER AND NUMBER OF EXPANSORS JOURNAL ENDS AND VALVE POSITION Double Square Double Circular Axial valve Axial valve Circular axial valve Square radial valve Circular radial valve CONTROL TENSION BRAKES Powder Brake Mecanical Brake (Axial...