AMF Catalogue Hydraulic clamping systems Page 46
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hollow rod Cylinder No. 6920D Hollow Rod Cylinder double acting, max. operating pressure 500 bar. Order no. 62794 3,77 2,89 850 push-pull force VH at 500 bar [kN] push-pull force RH at 100 bar [kN] push-pull force RH at 500 bar [kN] Stroke H Vol. VH Vol. RH [mm] [cm³] 6920D-15-001 3,77 18,85 2,89 14,45 10 3,77 6,03 30,15 4,90 24,50 10 6,03 4,90 6,03 4,90 1100 6920D-38-001 9,42 47,10 7,65 38,25 16 15,10 12,20 9,42 7,65 1650 14,72 73,60 11,59 57,95 16 23,50 18,50 14,72 11,59 2000 6920D-92-001 23,12 115,60 18,60 93,00 20 46,20 37,20 23,12 18,60 3050 37,68 188,40 30,63 153,15 25 94,20 76,50 37,68 30,63 5350 6920D-150-001 62877 2,89 push-pull force VH 100 bar [kN] 6920D-59-001 62851 62869 effective piston area RH [cm²] Weight [cm³] effektive piston area VH [cm²] Article no. 6920D-24-001 62836 62844 CAD [g] VH = work stroke, RH = back stroke Design: Cylinder rod made from steel, burnished. Piston case hardened and ground. Piston rod is supplied as standard with HC threads. lf a piston rod with internal thread is desired, a HELI-COIL insert (diameter x1.5) is screwed into the HC thread on the customer side. Oil supply via threaded port. Application: Particularly suitable for retrofitting existing fixtures for hydraulic actuation. When workpieces are clamped onto a machine tool table, the hollow rod cylinder can be fitted over the clamp bolt instead of the nut. The hollow rod cylinders can be used for push or pull applications. Note: M8 10 depth Cylinders are designed for use in combination with tempered bolts, material grade 12.9 (e.g. DIN 787). Threaded body provides a wide range of adjustability. Suitable flange nuts DIN 70852. Dimensions: Article no. A D dia. F 6920D-15-001 59 M50x1,5 35 HCM 8 11 60 36 8,2 16 64 M55x1,5 40 HCM 10 12 65 41 10,2 20 72 M65x1,5 45 HCM 12 14 73 45 12,2 78 M70x1,5 50 95 M80x2,0 6920D-150-001 109 M100x2,0 Order no. 62794 62836 62844 62851 62869 62877 6920D-24-001 6920D-38-001 6920D-59-001 6920D-92-001 R dia. S 12 G1/8 25 16 G1/4 32 25 20 G1/4 40 HCM 16 14 79 50 16,2 32 25 G1/4 50 60 HCM 20 18 96 60 20,2 40 32 G1/4 63 75 HCM 27 22 110 65 27,2 50 40 G1/4 80 G K L L1 dia. M dia. N dia. P HELI-COIL thread insert Accessories Thread insert x length for cylinder size 67538 M 8x12 6920D-15-001 67546 M10x15 67595 M12x18 67603 M16x24 67611 M20x30 67629 M27x40,5 Order no. Weight [g] 6920D-24-001 1 3 6920D-38-001 4 6920D-92-001 19 6920D-59-001 6920D-150-001 9 43 Note: The HELI-COlL thread insert can be installed using a manual or automatic installation tool. The driving pin is used only for installation, and must subsequently be removed using a special pinbreaker. Without the HELI-COlL insert the piston through-hole has the value of the gap ØM (see dimensions table). Subject to technical alterations. 46 Hydraulic clamping systems ANDREAS MAIER GmbH & Co. kg ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de
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