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Ultra-stiff, four-column servohydraulic load frames, dynamically rated to deliver loads ranging from 1 to 30 MN. Higher capacity load frames and unique features can be custom engineered to order.
A proven leader in developing servohydraulic technology
Dozens of available accessories including bending fixtures, compression platens and high force grips are available to provide a wide range of testing capabilities
Superior frame stiffness and alignment produces accurate results
Systems can be engineered with higher performance packages to meet any testing requirement
1. Optional Tie Bar
2. High-Accuracy Linear Variable Differential Transducer (LVDT)
3. Precision-machined, ultra-stiff columns
4. Optional Hydraulic Crosshead Positioning Cylinders
5. High-Stiffness Crosshead
- Integrated Actuator
- Integrated Hydraulic Manifold
- Close-coupled Accumulators
6. Optional Hose Stand
7. Hydraulic Service Manifold (HSM)
- Optional hose stand-mounted
- Optional crosshead-mounted (shown)
- Optional floor-standing
8. Crosshead Lift/Lock Controls
- Optional hose stand-mounted (shown)
- Optional floor-standing
9. Optional Hydraulic Grip Supply
10. Load Frame Base Options
- Standard T-Slot (shown)
- Integrated Strong Floor
11. Precision Force Transducer
- Base-mounted (shown)
- Actuator-mounted
12. Optional High-Force Accessories
- Compression Platens
- Hydraulic Wedge Grips (shown)
- Bend Fixtures
- Custom Fixtures
13. Crosshead Clamping Mechanism
14. High-Performance MTS Actuator
- Crosshead-mounted
- High-Stiffness
- Doubled-ended
- Dynamically rated
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Standard Models |
Custom Models |
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Load Frame Specifications |
Units |
311.31 |
311.32 |
311.41 |
311.51 |
311.61 |
311.71 |
311.81 |
311.91 |
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Dynamic Force Ratings |
kN |
1000 |
1200 |
2500 |
5000 |
7500 |
10,000 |
20,000 |
30,000 |
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(kip) |
(220) |
(265) |
(550) |
(1100) |
(1650) |
(2200) |
(4400) |
(6600) |
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Standard Dynamic Strokes |
mm |
150, 250 |
150, 250 |
150, 300 |
300 |
Custom load frame dimensions vary according to customers' specific application requirements. Consult an MTS Applications Engineer for more information. |
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(in) |
(6, 10) |
(6, 10) |
(6,12) |
(12) |
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Column Diameter |
mm |
101.6 |
101.6 |
152.4 |
203.2 |
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(in) |
(4.00) |
(4.00) |
(6.00) |
(8.00) |
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Column Spacing (width) |
mm |
711.2 |
711.2 |
762 |
1016.0 |
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(in) |
(28.0) |
(28.0) |
(30.0) |
(40.0) |
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Column Spacing (depth) |
mm |
406.4 |
406.4 |
508.0 |
812.8 |
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(in) |
(16.0) |
(16.0) |
(20.0) |
(32.0) |
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Load Frame Height |
mm |
2946-5486 |
2946-5486 |
Note3 |
4470-8534 |
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(min-max) |
(in) |
(116-216) |
(116-216) |
Note3 |
(176-336) |
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Specimen and Grip Spacing |
mm |
254-2794 |
254-2794 |
Note2 |
450-4500 |
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(min-max) |
(in) |
(10-110) |
(10-110) |
Note2 |
(17.8-177) |
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Base Width (width) |
mm |
914.4 |
914.4 |
1066.8 |
1422.4 |
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(in) |
(36.0) |
(36.0) |
(42.0) |
(56.0) |
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Base Width (including lifts) |
mm |
1219 |
1219 |
1492.5 |
1903 |
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(in) |
(48.0) |
(48.0) |
(58.8) |
(75.0) |
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Base Depth |
mm |
1016 |
1016 |
1168.4 |
1397 |
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(in) |
(40.0) |
(40.0) |
(46.0) |
(55.0) |
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Base Height (from floor) |
mm |
280.9 |
280.9 |
332 |
450 |
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(in) |
(11.06) |
(11.06) |
(13.06) |
(17.8) |
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Hose Stand Spacing (max) |
mm |
921 |
921 |
2479 |
2479 |
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(in) |
(36.3) |
(36.3) |
(97.7) |
(97.7) |
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Hose Stand Width |
mm |
991 |
991 |
991 |
991 |
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(in) |
(39.0) |
(39.0) |
(39.0) |
(39.0) |
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Hose Stand Depth |
mm |
688 |
688 |
688 |
688 |
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(in) |
(27.1) |
(27.1) |
(27.1) |
(27.1) |
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Hose Stand Height |
mm |
2426 |
2426 |
2819 |
3200 |
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(in) |
(95.5) |
(95.5) |
(111.0) |
(126.0) |
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Approximate Crosshead Weight |
kg |
1225 |
1225 |
2903 |
7938 |
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(lb) |
(2700) |
(2700) |
(6400) |
(17,500) |
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Approximate Total Weight |
kg |
4100 |
4100 |
9525 |
21500 |
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(lb) |
(9100) |
(9100) |
(21,000) |
(47,500) |
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System Stiffness4 |
N/m |
1.6 X 109 |
1.6 X 109 |
3.1 X 109 |
3.9 X 109 |
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lbf/in |
9.3 X 106 |
9.3 X 106 |
17.4 X 106 |
22.6 X 106 |
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1.Model 311.31 & 311.32 with actuator retracted, 311.41 & 311.51 with actuator at mid-stroke |
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2.Model 311.41 150 mm stroke is 400 – 3000 mm (15.75 – 118.1 in), 311.41 300 mm stroke is 400 – 3385 (13.31 – 133.3 in) |
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3.Model 311.41 150 mm stroke is 3554 – 6154 (140.0 – 242.3 in), 311.41 300 mm stroke is 3720 – 6768 (146.5 – 266.5 in) |
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4.Stiffness calculated at a crosshead height of 2 meters (78.7 inch) above the base. |
