Mechanical Test Bench ▸ Torsion test ▸ Torsion Bench

Torsion Bench

Ref : MBT

Easy product attachment thanks to interchangeable standard mandrels
Program automatic cycles with simple parameters
Zero backlash thanks to pre-tensioned double transmission
High angular resolution
Adjustable length thanks to sliding headstock with brake

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Capacity

1,000 Nm

Rotation speed

0 to 400°/min

Max. diameter

380 mm

Max. length

500 mm

Products tested

Sector of activity

Main functions

The torsion test rig can test samples up to 1,000 Nm and 400°/min, according to programmable cycles, until they break.

It automatically measures torsional stiffness and deformation energy. The sample is attached to a sliding headstock, enabling testing of samples of variable lengths up to 500 mm.

Torque measurement is provided by a strain-gauge torquemeter, and deformation angle is measured by a high-resolution encoder.

Operating mode

The test sample is clamped on 2 chucks with concentric jaws. The 1st chuck, which is fixed in rotation, is mounted on a sliding headstock that can be adjusted in translation. The 2nd chuck is driven in rotation by a brushless geared motor equipped with a backlash compensation system. The user sets a rotation speed, a minimum angle and a maximum speed. and max. or min. torque and max. as well as a number of cycles. The software automatically measures the rotational stiffness coefficient and the energy absorbed by the sample at each cycle.

Cardan shafts

Measurement of the service life of mechanical transmission components.

Couplings

Measurement of the elasticity and efficiency of flexible couplings.

Simple fixing

The product is held in place by standard interchangeable mandrels.

Set catch-up

No backlash thanks to pre-tensioned double transmission.

MBT Torsion bench – LF Technologies

MBT Torsion bench - LF Technologies

MBT Torsion bench – LF Technologies – Zoom

MBT Torsion testing machine - LF Technologies - Zoom

Advantages of the Torsion Bench

Simple parameterization

Program automatic cycles with simple parameters.

The machine is controlled by a PC equipped with software developed specifically by our programmers. Cycles can be programmed with position or force control, sensor measurements and statuses can be displayed, etc.

Couple and angle control

Automatic analysis

Deformation energy, stiffness coefficient

Ergonomics

Quick to install, simple to configure, and very easy to use.

Game catch-up

When the direction of rotation changes, the system incorporates a backlash compensation mechanism.

TECHNICAL SPECIFICATIONS of the Torsion Bench

Specifications	MBT-1000	MBT-2000
Dynamic torsion bench with no angular backlash on inversion
Capacity	1 000 Nm	2 000 Nm
Speed of rotation	0 to 400°/min	0 to 400°/min
Max. diameter	380 mm	380 mm
Max. length	500 mm	500 mm
Automatic zero torque search	automatic	automatic
Automatic zero position search	automatic	automatic
Break detection	automatic	automatic
Programmed routines	2 directions depending on angle or pairing	2 directions depending on angle or pairing
Torque accuracy	0,5 Nm	0,5 Nm
Angle measurement resolution	0,01°	0,01°
Data acquisition	automatic	automatic
Automatic curve analysis	automatic	automatic
Thermal chamber with programmable temperature control from 20° to 150° C	from 20° to 150° C	from 20° to 150° C

OPTIONS

Enceinte thermique

Directly integrated into the test bench, the thermal chambers are capable of simulating extreme environments (from -180°C to +600°C) and are reproducible. The temperature is regulated and controlled during the test according to pre-set parameters (ramps and steps). Thermal chambers are ideal for carrying out long-term tests or for preparing a sample prior to testing. The independent chamber is heated using a gas or liquid bath, with a temperature gauge positioned as close as possible to the sample under test. Robotic rapid transfer systems minimise variations in product temperature between the climatic chamber and the test area.nvironments (from -180°C to +600°C) and reproducible. The temperature is regulated and controlled during the test according to pre-set parameters (ramps and steps). Thermal chambers are ideal for carrying out long-term tests or for preparing a sample prior to testing. The independent chamber is heated using a gas or liquid bath, with a temperature gauge positioned as close as possible to the sample under test. Robotic rapid transfer systems minimise variations in product temperature between the climatic chamber and the test area.

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