AXIAL-TORSION TEST SYSTEMS

Brochure
Designed for combined axial and torsional loading, the BV series delivers comprehensive mechanical characterization of materials and components. Available in a wide range of load capacities, with torque up to 1000 Nm, our axial-torsion systems combine a compact and rigid design with the flexibility to integrate with our full range of actuators (both EA and UD).
Features

Max. Torque: 1000 Nm

Test types

Axial-Torsion
Static
Dynamic

Applications

Materials
Biomedical
Wires and Screws

axial torsion testing machines
axial torsion testing machines

AXIAL-TORSION TEST SYSTEMS

Brochure
Designed for combined axial and torsional loading, the BV series delivers comprehensive mechanical characterization of materials and components. Available in a wide range of load capacities, with torque up to 1000 Nm, our axial-torsion systems combine a compact and rigid design with the flexibility to integrate with our full range of actuators (both EA and UD).
Features

Max. Torque: 1000 Nm

Test types

Axial-Torsion
Static
Dynamic

Applications

Materials
Biomedical
Wires and Screws

BI-AXIAL TESTING

Axial & Torsional

BV series supports both static and dynamic test profiles, including torsional fatigue, combined load fatigue and multiaxial stress analysis. Fully compatible with climatic chambers, strain gauges and a wide range of grips and accessories, these systems adapt to the most demanding test requirements across research and industrial environments.

  • Control of two or more synchronised electromechanical axes
  • Absolute rotary encoder
  • High-resolution 24-bit data acquisition
  • Remote control
  • Control station in separate and independent position
  • Simple and flexible test management via the graphical Test Center interface
  • Wide range of grippers, dedicated test accessories and load cells
  • Integration with strain gauges and climatic chambers

Max. Dynamic torque: 1000 Nm

Max. Test speed: 350 rpm

Max. Admissible static axial load: 100 kN

Max. Admissible dynamic axial load: 100 kN

  • Biomedical: Implants, bone and soft tissue mechanical characterization, surgical instrument testing
  • Automotive: Driveshafts, rubber components, fasteners, suspension parts fatigue testing
  • Aerospace: Composite materials, structural components, combined load fatigue analysis
  • Materials testing: Metals, plastics, polymers, torsional fatigue and failure testing

TECHNICAL SPECIFICATIONS

BV SERIESUNITSBV020BV035BV060BV080BV100BV170BV230BV1000
Continuos torqueNm15 25455580135160850
Dynamic torque (sinusoidal fatigue)Nm20 3560801001702301000
Test speedrpm350 35020015020020010085
Static axial load (max. admissible) *kN15 505050505050100
Dynamic axial load (max. admissible) *kN10.5 353535353535100
CoolingAirAirAirAirWater closed circuitWater closed circuitWater closed circuitWater closed circuit
Max. number of revolutions
±10000 *
Rotational absolute encoder
Integrated
* Higher values on request

FEATURES

No maintenance

High reliability

High efficiency

Single controller

Simple installation

CERTIFIED STANDARDS

TESTAPPLICATIONSTANDARDDESCRIPTION
StaticPlasticsASTM D638Tensile properties of plastics
StaticPlasticsISO 527-1Plastics-Determination of tensile properties
StaticPlasticsISO 527-2Plastics-Determination of tensile properties
StaticMetalsASTM E21High temperature tensile testing of metallic materials
StaticMetalsASTM E290Material bending test for ductility
StaticMetalsASTM E517Plastic deformation ratio r for sheet metal
StaticMetalsASTM E646Tensile hardening exponents (n values) of sheet metal materials
StaticMetalsASTM E8MTensile testing of metallic materials
StaticMetalsASTM E9Compression testing of metallic materials at room temperature
StaticMetalsEN 10002-1:2001 (replaced by ISO EN 6892-1:2019)Tensile testing of metallic materials. Test method at room temperature
StaticMetalsISO 6892-1Metallic materials – Tensile testing Part 1: Test method at room temperature
StaticMetalsISO 7438Metallic materials. Proof of folding.
StaticMetalsISO 783Metallic materials – Tensile test of steel at elevated temperature
Static / FatigueBikeEN 15194Electrically assisted pedal cycles – EPAC Bicycles – test methods
Static / FatigueBikeISO 4210-3Safety requirements for bicycles – Part 3: Common test methods
Static / FatigueBikeISO 4210-4Safety requirements for bicycles – Part 4: Braking test methods
Static / FatigueBikeISO 4210-5Safety requirements for bicycles – Part 5: Steering test methods
Static / FatigueBikeISO 4210-6Safety requirements for bicycles – Part 6: Frame and fork test methods
Static / FatigueBikeISO 4210-7Safety requirements for bicycles – Part 7: Test methods for wheels and rims
Static / FatigueBikeISO 4210-8Safety requirements for bicycles – Part 8: Pedal and transmission system test methods
Static / FatigueBikeISO 4210-9Safety requirements for bicycles – Part 9: Test methods for saddles and seatposts
Static / FatigueBiomedicalASTM F1264Standard specifications and test methods for intramedullary fixation devices
Static / FatigueBiomedicalASTM F1717Standard test methods for spinal implant structures in a vertebrectomy model
Static / FatigueBiomedicalASTM F1798Standard test method for evaluating the static and fatigue properties of interconnecting mechanisms and subassemblies used in spinal arthrodesis implants
Static / FatigueBiomedicalASTM F1800Standard practice for cyclic fatigue testing of tibial plateau metal components of total knee joint replacements
Static / FatigueBiomedicalASTM F2068Standard specifications for femoral prostheses – metallic implants
Static / FatigueBiomedicalASTM F2077Test methods for intervertebral body fusion devices.
Static / FatigueBiomedicalASTM F2193Standard specifications and test methods for components used in surgical fixation of the spinal skeletal system
Static / FatigueBiomedicalASTM F2502Standard specifications and test methods for resorbable plates and screws for internal fixation implants
Static / FatigueBiomedicalASTM F2580Standard practice for evaluating the modular connection of a proximally fixed femoral hip prosthesis
Static / FatigueBiomedicalASTM F2706Standard test methods for occipito-cervical and occipito-cervical-thoracic spinal implant constructions in a vertebrectomy model
Static / FatigueBiomedicalASTM F382Standard specification and test method for metal bone plates
Static / FatigueBiomedicalASTM F384Standard specifications and test methods for angled metal devices for orthopedic fracture fixation
Static / FatigueBiomedicalASTM F543Standard specifications and test methods for metallic medical bone screws
Static / FatigueBiomedicalEN 843-1Mechanical properties of monolithic ceramics at room temperature – Determination of flexural strength
Static / FatigueBiomedicalISO 11405Dental structure adhesion testing
Static / FatigueBiomedicalISO 12189-8Mechanical testing of implantable spinal devices – Fatigue test method for spinal implant assemblies using anterior support
Static / FatigueBiomedicalISO 14801Dentistry – Implants – Dynamic load testing for endosseous dental implants
Static / FatigueBiomedicalISO 14879-1Total knee joint replacement Determination of strength properties of tibial knee trays
Static / FatigueBiomedicalISO 6872Dentistry – Ceramic Materials
Static / FatigueBiomedicalISO 7206Surgical implants – Partial and total hip joint replacements
Static / FatigueBiomedicalISO 9585Surgical implants – Determination of flexural strength and stiffness of bone plates
StaticRubberISO 2439Determination of hardness (indentation technique)
StaticRubberISO 3386Determination of compressive stress-strain characteristics

FREQUENTLY ASKED QUESTIONS

A bi-axial testing system applies two independent, simultaneously controlled loads along two different axes to a single specimen, most often perpendicular tension/compression or tension/torsion. This lets engineers reproduce combined stress states that occur in real components, which single-axis machines cannot replicate.

An axial-torsional system pairs two synchronized actuators on the same specimen axis: one applies axial (push-pull) force while the other applies torque, rotating the specimen or grip head. A shared control system coordinates both loads in real time, allowing independent or phased combinations of tension/compression and twisting. It’s used to test shafts, spinal implants, fasteners, and drivetrain components under the combined loading conditions they actually experience in service.

Bi-axial testing is used for cruciform specimens in sheet metal forming research, biomedical implants under combined compressive and shear loads, composite panels, pressure vessels, and any component that experiences loading from more than one direction in service, such as automotive chassis parts or aerospace structures.

Most components fail under combined stress states, not pure tension or pure compression alone. Bi-axial testing reproduces these combined conditions directly, giving more realistic fatigue life predictions, failure mode identification, and material characterization data than extrapolating from separate uniaxial tests.

A bi-axial test system needs two synchronized actuators (electromechanical or electrodynamic), a control system capable of coordinating both load paths in real time, appropriate load cells and grips or cruciform fixtures for the specimen geometry, and software to program the load ratio and phase relationship between the two axes.

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