HB series: 50 to 2500 kN

Standard versions of the HB load frame in the 50 to 2,500kN range have the testing actuator located above the test area. The version with integrated T-slotted platform allows flexure tests and component testing to be performed in addition to standard fatigue tests.
Servohydraulische Prüfmaschine HB-Baureihe für dynamische Prüfungen

Technical overview

The test frame features extremely high stiffness and natural resonance; high-accuracy alignment avoids unwanted flexural stresses in the specimen.

Description

These 2-column load frames are designed for materials and component testing under dynamic loading in a closed force-flow. The frame is supported on vibration-isolating leveling units so that no appreciable forces are transmitted to the floor during normal operation. Where tests or environmental conditions are critical in nature, the use of optionally available air-springs is advisable; these have a natural frequency of approximately 3 - 6 Hz.

The efficiency of the testing system is enhanced by the especially high axial and lateral stiffness of the HB load frames, enabling higher frequencies and specimen deformations Moreover, high lateral forces which may occur in compression and flexure tests can be absorbed without difficulty.

The frames also feature extremely precise alignment; Following installation of the testing actuator and load cell, alignment accuracy is +0.1 mm per meter separation; at distances below 350mm the offset is constant at 0.05mm. Plane-parallelity of mounting surfaces is equal to or better than 0.03 mm per 100 mm. All fixtures and ZwickRoell load cells are mounted via flanges with centering-spigot.

Advantages & features

  • 4 standard nominal ratings from 50 kN to 2500 kN
  • testing actuator mounted on upper crosshead
  • convenient working height
  • hydraulic clamping and adjustment for easy positioning of upper crosshead
  • comprehensive range of accessories, including hydraulic grips, compression platens, flexure test kit etc.
  • safety housing for compliance with CE Machinery Directive
  • version with integrated T-slotted specimen ideal for fatigue tests on components

Technical data

Dynamic nominal force

50

100

250

500

kN

Crosshead clamping

electro-hydraulic

electro-hydraulic

electro-hydraulic

electro-hydraulic

Crosshead adjustment

electro-hydraulic

electro-hydraulic

electro-hydraulic

electro-hydraulic

AG100 – max. test-frame height with 100mm-stroke actuator

3175 (3675)[1]

3259 (3759)[1]

3523 (4023)[1]

4045 (4545)[1]

mm

AG250 – max. test-frame height with 250mm-stroke actuator

3475 (3975)[1]

3559 (4059)[1]

3823 (4323)[1]

4345 (4845)[1]

mm

AG400 – max. test-frame height with 400mm-stroke actuator

-

3859 (4359)[1]

4123 (4623)[1]

4635 (5135)[1]

A – max. column height

2690 (3190)[1]

2690 (3190)[1]

2900 (3400)[1]

3250 (3750)[1]

mm

AK - tilted dimension for installation

2820 (3320)[1]

2820 (3320)[1]

3060 (3560)[1]

3500 (3980)[1]

mm

B — max. width of test frame

1079

1079

1197

1525

mm

C – max. depth of test frame

780 (1020)[2]

780 (1020)[2]

1130 (1130)[2]

1130 (1370)[2]

mm

D1 – column spacing

565

565

670

800

mm

E – column diameter

80

80

100

120

mm

F - height of top edge of lower crosshead[3]

950

950

890

900

mm

G – max. test area height[4]

1510 (2010)[1]

1510 (2010)[1]

1705 (2205)[1]

2120 (2620)[1]

mm

H – max. working test area height[5]

1434 (1934)[1]

1434 (1934)[1]

1614 (2114)[1]

2020 (2520)[1]

mm

J - crosshead displacement range

1000 (1250)[1]

1000 (1250)[1]

1150 (1400)[1]

1250 (1400)[1]

mm

Weight without T-slotted platform[6]

899 (945)[1]

895 (941)[1]

1361 (1430)[1]

3660 (3780)[1]

kg

Weight with T-slotted platform[6]

1137 (1182)[1]

1133 (1178)[1]

2082 (2232)[1]

4860 (4980)[1]

kg

Frame stiffness with crosshead separation 1000 mm[7]

730

730

988

1529

kN/mm

Frame stiffness with crosshead separation 1000 mm[2]

870

870

1332

1848

kN/mm

Item No.

Standard height

077533

924779

040159

079720

Standard height with T-slotted platform

077370

079752

040158

079728

Extra-high + 500 mm

750972

077534

079755

079721

Extra-high + 500 mm with T-slotted platform

077535

079753

079756

079733

  1. Variant with height increased by 500mm
  1. Variant with t-slotted platform
  1. With vibration-damping feet
  1. Distance between upper and lower crossheads
  1. Distance between piston flange and upper crosshead with piston retracted
  1. Weight without actuator, load cell and any fixtures
  1. Standard table plate

Layout

Layout der servohydraulische Prüfmaschine HB-Baureihe

Video

3:00

Dynamic Testing with ZwickRoell

Dynamic Testing of a snow ski, bicycle crank arm, motorcycle drive chain, automobil crankshift, compact-tension specimen

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