ARBM rotary bending machine

Industries

Metals

Test load

120 Nm

Type of test

Rotating bar bending fatigue tests

Standards

DIN 50113
ISO 1143

The perfect machine for rotating bar bending fatigue tests

The rotary bending machine can be used for rotating bar bending fatigue tests in various industries including rail transport, energy, automobile, aerospace, and academia.

Advantages & Features

Description

The purpose of the rotating bar bending fatigue test (as per DIN 50113-1982 and ISO 1143-2010) is to determine the bending fatigue strength properties of round specimens under rotating load. During determination of bending fatigue strength the specimen is subjected exclusively to alternating loading in order to obtain a mean value of zero between positive and negative loads of equal magnitude.

As the greatest stresses occur on the surface of the specimen, the condition of the surface is of particular importance in this test method.

The rotating bar bending fatigue test can also be performed with an optionally available high-temperature furnace at elevated temperatures up to 850°C.

Advantages

Fast, easy setup
Variably adjustable bending moment via weights
Constant bending moment over the specimen length
Steplessly adjustable rotational speed
Self-centering specimen clamping; high alignment accuracy
Safety systems as per Machinery Directives 89/392/EEC and 91/368/EEC

Technical overview

Description	Value
Main machine
Bending moment (in steps of 0.5 Nm)	2.5 to 120	Nm
Rotational speed, stepless	500 to 5000	r/min
Max. cycle counter¹	99999900 (= 1x10⁸)
Max. bending angle	7°
Dimensions (W x D x H)	1520 x 1010 x 1450	mm
Total weight	690	kg
Test area
Grip-to-grip separation (tests at room temperature)²	50 to 200	mm
Grip-to-grip separation (tests at high temperature)	160 to 200	mm
Furnace width	130	mm
Clamping diameter	2-20³⁴	mm
Clamp length (with clamp diameter 8 ~ 20 mm)	40 ± 10	mm
Clamp length (with clamp diameter 2 ~ 7.5 mm)	25 ± 5	mm
Hydraulic system
Working pressure	5	bar
Pump flow-rate	2	l/min
Reservoir capacity	30	l
Oil viscosity, approx.	10⁵	cSt
Load weight
Weights	(1x 1 N; 2x 2 N; 1x 5 N; 2x 10 N; 1x 20 N; 1x 50 N; 2x 100 N) x 2 boxes
Material	stainless steel, density 7.9 g/cm³, G = 9.80665 N/kg
Packing/packaging	net weight: (30.5 kg; gross weight: 34.5 kg) x 2 boxes
Power supply
Input voltage	3x 380/400 V + PE + N, 50/60 Hz
Current	16	A
Power rating	1.8 (without furnace); 2.3 (with furnace)	kW
IP Protection	Design complies with IP 33

Cycle counts up to 999999000 (i.e.1 x 109) also can be configured - please enquire
Shorter grip-to-grip separation possible - please enquire.
Depending on chuck selected from ER32 range
Scope of supply includes collets Ø 10 and Ø 20
at 40 °C