Products // Hydraulic Clamping Systems // Clamping Cylinders (Workpiece Clamping)

    

 Hollow Rod Cylinder, single acting  

 No. 6920

 

Hollow Rod Cylinder
single acting, spring return
max. operating pressure 400 bar.

 
Order no. Article no. push-pull force at 100 bar
[kN]
push-pull force at 400 bar
[kN]
Stroke H
[mm]
Vol.
[cm³]
Piston dia.
[mm]
effective piston area
[cm²]
Spring force min.
[N]

[g]
SC CAD
64998 6920-20 5 20 8 4 32 4,9 200 930 CAD
63016 6920-32 8 32 10 8 40 8 350 1730 CAD
65011 6920-50 12,5 50 12 15 48 12,8 540 1650 CAD
63057 6920-80 20 80 15 30 60 20 750 3850 CAD
65003 6920-125 32 125 20 64 75 32,8 1120 6250 CAD
Design:
Steel cylinder body, burnished. Piston and piston rod case-hardened and ground. Built-in return spring. Sinter metal breather. Two wipers and vent screw.
Application:
Particularly suitable for retrofitting existing fixtures for hydraulic actuation. When workpieces are clamped onto a machine tool table, the hollow cylinder can be fitted over the clamp bolt instead of the nut. The hollow rod cylinders can be used for push or pull applications.
Features:
Completely sealed against contamination and chips by means of sinter metal breather and two wipers. Piston can be moved to its end stop. Oil connection at both ends, thus easy lining up in series.
Note:
Cylinders are designed for use in combination with tempered bolts, material grade 8.8, e. g. DIN 787 and DIN 6379. Bolts matching the hole are recommended. For single acting cylinders there is risk of sucking in coolant during the return stroke. In this case the cylinders have to be protected against the direct effect of coolant. The sinter metal breather should be protected.

 
 
 Dimensions:
Order no. A dia. D dia. F K L dia. M dia. N R
64998 80 52 40 56 82 12,3 20 G1/8
63016 90 60 44 60,5 94 14,3 24 G1/8
65011 101 70 50 71,5 103 18,3 26 G1/8
63057 115 80 60 87 119 22,3 32 G1/4
65003 149 100 75 108 151 27,3 38 G1/4
 

AMF - ANDREAS MAIER FELLBACH GmbH & Co. - Schloss- und Werkzeugfabrik