AMF
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group picture

Support Element, top-flange-mounting

Normally retracted. Hydraulic advanced. Spring force for contact,
max. operating pressure 70 bar,
min. operating pressure 25 bar.

Order
no.		 Article no. Contact force F1
[N] 		Support force at 70 bar
[kN] 		Stroke H
[mm] 		Vol.
[cm³] 		Md 1 max.
[Nm] 		Q max.
[l/min] 		Weight
[g] 		CAD SC
552204 6944KH-03-2 2,8 - 3,8 3,0 6,5 0,8 5,4 2,5 430
559180 6944KH-03-5 3,7 - 5,5 3,0 6,5 0,8 5,4 2,5 430
552205 6944KH-04-2 3,6 - 5,6 4,0 8,0 1,4 10,0 2,5 545
559181 6944KH-04-5 4,7 - 7,8 4,0 8,0 1,4 10,0 2,5 545
552206 6944KH-05-2 4,7 - 7,8 5,5 8,0 1,5 16,5 2,5 708
559182 6944KH-05-5 6,2 - 11,0 5,5 8,0 1,5 16,5 2,5 708
552207 6944KH-10-2 5,8 - 9,7 10,0 10,0 1,8 30,0 2,5 1029
559183 6944KH-10-5 7,9 - 13,6 10,0 10,0 1,8 30,0 2,5 1029

Design:

Body made from steel, tempered and burnished. Support pin with internal thread case hardened and ground. Wiper to protect against dirt and cooling water. Oil supply via threaded connection or oil channel in the fixture body.

Application:

The support element is used as an extra support to prevent sagging and vibration of a workpiece.

Features:

Element with high load capacity and low height. Oil pressure: The plunger is retracted in the normal position. When pressure is applied, the support pin advances with a weak spring-applied force against the inserted workpiece. The spring force varies with the pin stroke. As the hydraulic pressure rises, the support pin is hydraulically clamped. When the pressure is released, the support pin returns to the normal position. Very high support force ensures optimum manufacturing quality.

Note:

The support pin must be protected against the entry of dirt and splash water by a set screw. When putting into operation, make sure that the hydraulic system is vented perfectly. Failure to do so can cause destruction of the clamping element by the escaping diesel effect. The vent hole must be connected. No coolant must be sucked through this.

The supporting force should be matched to the clamping force in order to absorb machining forces.
The supporting force should always be at least twice as high as the clamping force.

  • dimensions table
    Order
    no.     		Article no. A B C dia. D
    		 E F dia. G dia. J K L M dia. N dia. P Q R S T U V W dia. X
    		 Y Z SW1 SW2 SW3 VV OR-1
    O-ring
    Order No.
    552204 6944KH-03-2 21,0 9,0 11,5 10 19,0 1,7 4,5 9,0 3,0 28 50,0 29,9 9,5 30,5 G1/8 34 3 15,0 20,5 7 8 3,6 11 8 13 8 - 161802
    559180 6944KH-03-5 21,0 9,0 11,5 10 19,0 1,7 4,5 9,0 3,0 28 50,0 29,9 9,5 30,5 G1/8 34 3 15,0 20,5 7 8 3,6 11 8 13 8 - 161802
    552205 6944KH-04-2 27,5 10,5 15,7 12 18,0 1,7 4,5 11,5 3,5 25 52,0 35,9 11,5 32,0 G1/8 40 5 15,7 23,5 8 8 3,6 11 10 15 10 - 161802
    559181 6944KH-04-5 27,5 10,5 15,7 12 18,0 1,7 4,5 11,5 3,5 25 52,0 35,9 11,5 32,0 G1/8 40 5 15,7 23,5 8 8 3,6 11 10 15 10 - 161802
    552206 6944KH-05-2 31,0 11,0 17,0 15 16,5 1,8 5,5 12,5 4,0 25 57,0 39,9 14,5 34,5 G1/8 45 5 17,0 26,0 8 10 3,6 11 13 19 11 1 161802
    559182 6944KH-05-5 31,0 11,0 17,0 15 16,5 1,8 5,5 12,5 4,0 25 57,0 39,9 14,5 34,5 G1/8 45 5 17,0 26,0 8 10 3,6 11 13 19 11 1 161802
    552207 6944KH-10-2 39,0 11,0 20,0 16 16,5 1,8 5,5 12,5 4,0 25 64,5 47,9 15,5 39,0 G1/8 51 - 20,0 30,0 11 10 3,6 11 13 21 11 2 161802
    559183 6944KH-10-5 39,0 11,0 20,0 16 16,5 1,8 5,5 12,5 4,0 25 64,5 47,9 15,5 39,0 G1/8 51 - 20,0 30,0 11 10 3,6 11 13 21 11 2 161802

    Order
    no.     		Article no. c g dia. k dia. n t u v w vv
    552204 6944KH-03-2 11,5 M4 3 30 3 15,0 20,5 7 -
    559180 6944KH-03-5 11,5 M4 3 30 3 15,0 20,5 7 -
    552205 6944KH-04-2 15,7 M4 3 36 5 15,7 23,5 8 -
    559181 6944KH-04-5 15,7 M4 3 36 5 15,7 23,5 8 -
    552206 6944KH-05-2 17,0 M5 3 40 5 17,0 26,0 8 1
    559182 6944KH-05-5 17,0 M5 3 40 5 17,0 26,0 8 1
    552207 6944KH-10-2 17,5 M5 3 48 - 20,0 30,0 11 2
    559183 6944KH-10-5 17,5 M5 3 48 - 20,0 30,0 11 2

    Order
    no.     		Article no. BB dia. CC DD EE dia. FF GG dia. JJ OR-2
    O-ring
    Order No.     		max. permitted weight
    of the set screw
    [g]
    552204 6944KH-03-2 5,0 4,5 1,93 0,5 3,5 M6 9,0 552155 85
    559180 6944KH-03-5 5,0 4,5 1,93 0,5 3,5 M6 9,0 552155 110
    552205 6944KH-04-2 4,8 6,2 1,8 0,7 4,9 M8 11,5 552245 110
    559181 6944KH-04-5 4,8 6,2 1,8 0,7 4,9 M8 11,5 552245 140
    552206 6944KH-05-2 9,0 8,2 2,5 1,0 5,9 M10 12,5 552174 140
    559182 6944KH-05-5 9,0 8,2 2,5 1,0 5,9 M10 12,5 552174 185
    552207 6944KH-10-2 9,0 8,2 2,5 1,0 5,9 M10 12,5 552174 175
    559183 6944KH-10-5 9,0 8,2 2,5 1,0 5,9 M10 12,5 552174 235

    Always consider the permitted total weight of the set screw for in-house production.