Winding TechnologySKU: GRS-WK-EWW100Art. WK-EWW-100

Single-Side Mounted Winding Shaft

Name: Single-Side Mounted Winding Shaft
Brand: Grossmann
SKU: GRS-WK-EWW100
Price: 50.32 EUR
Availability: MadeToOrder

Single-Side Mounted Pneumatic Winding Shaft with Bayonet Flange

Pneumatic winding shaft for single-side mounting. Grips paper/foil cores via air-inflatable clamping elements. Standard sleeve inner diameters: 40, 50, 70, 76, 100, 120, 152, 200 mm.

500 RpmBayonet FlangeCantileverConfigurableMade In ChinaPneumaticSingle SideWeb Width 1600MmWinding

50,32 EURbase price

Auf Bestellung

Hersteller

Suzhou Xian Yan

Herkunft

China

Configure & Order

Beschreibung

The Single-Side Mounted Pneumatic Winding Shaft (Einseitige Wickelwelle) grips paper, foil or film cores from the inside using air-inflatable clamping elements. When compressed air is supplied, the clamping elements expand radially and hold the roll core; when the air is released the core slides off freely. The shaft is supported on one side only (cantilever) via a Bajonettflansch (bayonet flange). The opposite end is free, which allows the finished roll to be pulled off axially without opening a second bearing.

Technical overview

Web-width range: up to approx. 1,600 mm (narrower than the two-side version due to cantilever bending moment). Maximum rotational speed: 500 RPM (standard, all diameters). Standard sleeve inner diameters: 40, 50, 70, 76, 100, 120, 152 and 200 mm.

Variants

Variant	Core d	Max bending/torque	Bayonet flange	F (mm)	E (mm)
A (low-load, small d)	d < 100 mm	up to 333 Nm	Ø 109 mm	107	28
B (higher-load, small d)	d < 100 mm	333 - 666 Nm	Ø 107 mm	109	25.5
C (large d)	d ≥ 100 mm	up to 2,800 Nm	Ø 158 mm	158	37.7

E = clamping-head length (Spannkopflänge), F = flange hub length.

Pricing (EUR, ex works, German price level)

Variant	Flange Ø	Base price
A - low load	Ø 109 mm	€ 50.32
B - med load	Ø 107 mm	€ 70.50
C - heavy	Ø 158 mm	€ 103.50

Surcharge for automatic air supply (rotary joint): + € 2.00. Length-dependent surcharge: + € 1.42 per mm of useful (clamped) shaft length - same rate for all diameters.

Price = Base price(variant)
      + Span length [mm] × 1.42 €/mm
      + 2.00 €  (only if automatic air feed selected)

Engineering formulas

Maximum allowable web speed:

v_zul [m/min] = 500 RPM × d [mm] × π / 1000

d (mm)	v_zul (m/min)
40	63
50	78
70	110
76	119
100	157
120	188
152	239
200	315

Bending moment acting on the shaft (cantilever case):

M [Nm] = (Roll weight [kg] × 10 + Web tension [N]) × Roll width [mm] / 2000

This value has to stay below the bending-load limit of the chosen bearing unit (Typ 30 / 30N / 50) AND below the flange/variant limit.

Air-supply options

Manual: separate compressed-air gun + shut-off valve (operator inflates/deflates the shaft by hand before/after the roll change). Automatic: Druckluft-Drehdurchführung (rotary air feedthrough) so the shaft can be pressurised while rotating. Used with a bahnzugregelbarer Antrieb (tension-regulated drive) when continuous pressure is required.

Primary supplier today (post-2010): Suzhou Xian Yan (China). Approximately 350 3D hull models are required to cover all length / diameter / variant combinations for the shaft configurator.