Dak multi-axis and single-axis fatigue testing machines in the laboratory

Fatigue Tester

Fatigue Testing

Servo-driven fatigue systems for high-cycle and low-cycle work — a single-axis machine for coupons and components, and a multi-axis rig that loads a part along several axes at once with a programmable phase shift between them.

Frequency
upto100 Hz
Load
upto500 kN
The two machines

Two machines, one control system.

The single-axis machine drives one electro-linear actuator through a 60 mm stroke — coupons, components and the eight-station pulsatile rig for vascular stents. The multi-axis rig runs several Electro_Ax servo-hydraulic drives at once, in linear, parallel or orthogonal layouts, each phase-shifted against the master axis. Both are programmed from the same Dyna Desk – Test Bench software and the same Advanced Wave Maker.

Dak single-axis fatigue testing machine

Single-Axis Fatigue Testing Machine

60 mm stroke

One electro-linear actuator on a bench frame, for coupons and components — and, in the eight-station form, for pulsatile durability testing of vascular stents.

FA-LC-DYN · PuELD-FT-963

Dak multi-axis dynamic fatigue testing machine

Multi-Axis Fatigue Testing Machine

upto 500 kN

Several Electro_Ax servo-hydraulic drives in a linear, parallel or orthogonal layout, each phase-shifted against the master axis, so a part sees the loading state it meets in service.

Electro_Ax · EHSD

Specification

Engineered to a measurable standard.

Frequency
upto 100 Hz
Actuator stroke
60 mm, with brake
Over-travel limits
Mechanical, on the actuator
Load capacity, multi-axis
upto 500 kN per Electro_Ax drive
Drive, single-axis
Electro-linear actuator
Drive, multi-axis
Electro_Ax servo-hydraulic (EHSD)

Load accuracy is verified to ASTM E4, ISO 7500-1, EN 10002-2, JIS B7721 and DIN 51221; strain to ASTM E83, ISO 9513, EN 10002-4 and BS 3846.

Load cell accuracy is ±0.5% of indicated load or ±0.005% of load cell capacity, whichever is greater.

The 500 kN figure is the ceiling of the Electro_Ax servo drive on the multi-axis rig. Capacity on either machine is configured to the application — send us the loading and we will size it.

Engineering

Built for the cycle after the millionth.

A load cell that subtracts its own inertia, a drive with no valves to wear, and limits that stop the frame before the specimen does.

Advanced Wave Maker

Build the loading history stage by stage — blocks, ramps and holds in sequence, saved as a method and repeated exactly.

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Four control modes

Load-controlled high-cycle and strain-controlled low-cycle work run on the same frame, switching mode mid-test where the method calls for it.

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Fatigue-rated load cell

An accelerometer on the load axis measures the inertia of the moving mass and subtracts it in real time. That is what keeps the load honest at 100 Hz.

300% overload±0.5% of reading

Multi-axis with phase shift

Each axis holds its own closed-loop PID and can be offset in phase from the master, so a part sees the combined loading state it meets in service.

Linearparallelorthogonal

No servo valves

A servo motor and variable-speed pump replace the valve block, power unit and piping. Energy falls by up to half, hydraulic fluid by up to 90%.

Electro_Ax servo drive

Sample protection

The crosshead moves to keep force on a gripped specimen inside a set threshold, so the sample is not deformed while it is being clamped.

Follow Me and Safe Jog

Push or pull the upper grip and the crosshead follows; harder means faster. During positioning it stops instantly on sensing force.

Four jog speeds, down to 0.001 mm

Bio-Bath at 37 °C

Implants cycle in a temperature-controlled saline bath under closed-loop control, with the fixture raised out on the crosshead for inspection.

±1 °C, PBS or equivalent
Videos

Fatigue Tester in action

See how it handles — controlled cyclic loading, secure gripping and results that repeat.

Multi-axis fatigue testing machine

Watch on YouTube
The machine
Compliance

Evidence your auditor and your buyer both accept.

Every method your customers specify, and every calibration standard your procurement team will be asked to document.

Built to run any published method

Cyclic and dynamic loading — fatigue life, crack growth and durability, to ASTM, ISO and the method your programme reports against. The machine is configured to the method, not the method to the machine.

Commonly specified
ASTM
ASTM F1800ASTM F2077ASTM F2477
ISO
ISO 7206-4ISO 7206-6

Verified and calibrated to

Force, extension and displacement verified against the standards your procurement team will ask to see documented.

ASTM
ASTM E4ASTM E83
ISO
ISO 7500-1ISO 9513
EN
EN 10002-2EN 10002-4
BS
BS 3846
DIN
DIN 51221
JIS
JIS B7721

Windows 11, 64-bit · full compliance matrix

Accessories

Configured around your specimen, not the average one.

A result is only as good as the grip that holds the specimen, the extensometer that reads its strain, and the environment it endures. All three are specified alongside the machine, so the load path is right from the very first test.

400+

Fixtures

A fixture for the part, not a compromise.

Grips and holding fixtures across the industries we serve, including the medical set — ASTM F2077 for intervertebral fusion devices, ISO 7206-4 and -6 for hip stems, ASTM F1800 for knee implants.

37 °C ±1 °C

Bio-Bath

Body temperature, under closed-loop control.

A clear polycarbonate saline bath for implant work, running phosphate buffered saline or an equivalent, with temperature recorded alongside the test results.

8 specimens

Eight-station pulsatile rig

Eight stents, one run.

A circular mounting of high stiffness and low mass, fatigue-rated load cell on each station, for diameter-control pulsatile durability testing of vascular stents to ASTM F2477.

Fatigue Tester

Tell us what you need to test.

Send us the material and the standard it has to satisfy. Our engineers will specify the frame, the load cell and the fixturing.