ARBM 120 Rotary Bending Machine

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

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Key Advantages and Features

Description

Description of Operation

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 & features

Advantages and features

  • 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

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 counter[1]

99999900 (i.e. 1x109)

Max. bending angle

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

2-20[3] [4]

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.

10 cSt at 40

°C

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

0.75 (without furnace), 2 (with furnace)

kW

IP Protection

Design complies with IP 33

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