Servohydraulic components
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Description
These 2-column load frames are designed for materials and component testing under dynamic loading in a closed force-flow. The frame is supported on vibration-isolating leveling units so that no appreciable forces are transmitted to the floor during normal operation. Where tests or environmental conditions are critical in nature, the use of optionally available air-springs is advisable; these have a natural frequency of approximately 3 - 6 Hz.
The efficiency of the testing system is enhanced by the especially high axial and lateral stiffness of the HB load frames, enabling higher frequencies and specimen deformations Moreover, high lateral forces which may occur in compression and flexure tests can be absorbed without difficulty.
The frames also feature extremely precise alignment; Following installation of the testing actuator and load cell, alignment accuracy is +0.1 mm per meter separation; at distances below 350mm the offset is constant at 0.05mm. Plane-parallelity of mounting surfaces is equal to or better than 0.03 mm per 100 mm. All fixtures and ZwickRoell load cells are mounted via flanges with centering-spigot.
Advantages & features
Technical data
Dynamic nominal force |
50 |
100 |
250 |
500 |
kN |
---|---|---|---|---|---|
Crosshead clamping |
electro-hydraulic |
electro-hydraulic |
electro-hydraulic |
electro-hydraulic |
|
Crosshead adjustment |
electro-hydraulic |
electro-hydraulic |
electro-hydraulic |
electro-hydraulic |
|
AG100 – max. test-frame height with 100mm-stroke actuator |
3175 (3675)[1] |
3259 (3759)[1] |
3523 (4023)[1] |
4045 (4545)[1] |
mm |
AG250 – max. test-frame height with 250mm-stroke actuator |
3475 (3975)[1] |
3559 (4059)[1] |
3823 (4323)[1] |
4345 (4845)[1] |
mm |
AG400 – max. test-frame height with 400mm-stroke actuator |
- |
3859 (4359)[1] |
4123 (4623)[1] |
4635 (5135)[1] |
|
A – max. column height |
2690 (3190)[1] |
2690 (3190)[1] |
2900 (3400)[1] |
3250 (3750)[1] |
mm |
AK - tilted dimension for installation |
2820 (3320)[1] |
2820 (3320)[1] |
3060 (3560)[1] |
3500 (3980)[1] |
mm |
B — max. width of test frame |
1079 |
1079 |
1197 |
1525 |
mm |
C – max. depth of test frame |
780 (1020)[2] |
780 (1020)[2] |
1130 (1130)[2] |
1130 (1370)[2] |
mm |
D1 – column spacing |
565 |
565 |
670 |
800 |
mm |
E – column diameter |
80 |
80 |
100 |
120 |
mm |
F - height of top edge of lower crosshead[3] |
950 |
950 |
890 |
900 |
mm |
G – max. test area height[4] |
1510 (2010)[1] |
1510 (2010)[1] |
1705 (2205)[1] |
2120 (2620)[1] |
mm |
H – max. working test area height[5] |
1434 (1934)[1] |
1434 (1934)[1] |
1614 (2114)[1] |
2020 (2520)[1] |
mm |
J - crosshead displacement range |
1000 (1250)[1] |
1000 (1250)[1] |
1150 (1400)[1] |
1250 (1400)[1] |
mm |
Weight without T-slotted platform[6] |
899 (945)[1] |
895 (941)[1] |
1361 (1430)[1] |
3660 (3780)[1] |
kg |
Weight with T-slotted platform[6] |
1137 (1182)[1] |
1133 (1178)[1] |
2082 (2232)[1] |
4860 (4980)[1] |
kg |
Frame stiffness with crosshead separation 1000 mm[7] |
730 |
730 |
988 |
1529 |
kN/mm |
Frame stiffness with crosshead separation 1000 mm[2] |
870 |
870 |
1332 |
1848 |
kN/mm |
Item No. |
|||||
Standard height |
077533 |
924779 |
040159 |
079720 |
|
Standard height with T-slotted platform |
077370 |
079752 |
040158 |
079728 |
|
Extra-high + 500 mm |
750972 |
077534 |
079755 |
079721 |
|
Extra-high + 500 mm with T-slotted platform |
077535 |
079753 |
079756 |
079733 |
|
Number of columns |
2 |
||||
Frame stiffness at 1000-mm test area height |
2100 |
||||
Top crosshead adjustment |
Hydraulic |
||||
Top crosshead clamping |
Hydraulic |
||||
Finish |
RAL 7011 and RAL 7038 |
||||
Weight with typical accessories, approx. |
4700 |
||||
Area required for installation: |
|||||
Actual footprint |
962.11 |
||||
Test frame base area |
1.7755 |
||||
Specific floor loading (weight / actual footprint): |
|||||
Based on typical accessories |
479.06 |
||||
With 50 % safety |
718.6 |
||||
Floor load (weight / Space requirements): |
|||||
Based on typical accessories |
370.462 |
||||
At specimen break (3x), max. |
1111.4 |
Design
3:00
Dynamic Testing with ZwickRoell
Dynamic Testing of a snow ski, bicycle crank arm, motorcycle drive chain, automobil crankshift, compact-tension specimen