Drop Weight Testers up to 2000 Joules

Developed in close collaboration with our customers

Zwick Roell has been delivering quality testing systems for impact testing for years. Based on their years of experience, Zwick Roell presented a new product line of drop weight testers under the Amsler brand in October at testXpo 2017 – the International Forum for Materials Testing. Zwick Roell rounds out its portfolio of impact testing for a wide range of applications with the following products.

HIT230F_series_plastics_CAI compressiontestkit (compression after impact)_+FO

Die wesentlichen Funktionen der Fallwerke im Überblick

Materials testing in the plastics industry often involves instrumented multi-axial puncture tests as described in the international standard ISO 6603-2 and in ASTM D3763. While in Europe, the typical fall height is one meter, which means an impact velocity of 4.4 m/s, many international specifications in the automotive industry stipulate slower speeds of 2.2 m/s, which require relatively large drop weights, as well as higher speeds of 6.6 m/s, which require a greater fall height or acceleration of the drop weight tester. Additional test types, such as instrumented Charpy, Izod, or impact tensile tests are also useful in materials development.

Composites testing often involves pre-damaging prepared test plates. The compression test that follows is called a Compression After Impact (CAI) test and is described in many national and international standards.

When examining components, the mechanical characteristics of complete assemblies or systems are tested. Familiar examples include the testing of safety gear, such as helmets, protectors, or bullet-proof vests. Often, the engineer of a component wants to validate the design in its used condition. Drop weight testers are suitable for characterizing these properties using a wide range of deformation speeds and temperatures.

Materials and component testing with a single instrument

Testing components often places particular demands on a drop weight tester. The impact surfaces of the component are often not exactly at right angles to the impact direction, necessitating sturdy guides for the tup-holder. Many components have to be secured in special holders; the drop weight tester is equipped with a T-slotted platform for this purpose, enabling flexible fixture positioning. If tests are to be performed at low or elevated temperatures, the entire test arrangement must be accommodated in a temperature chamber. The Amsler HIT1100F and HIT2000F drop-weight testers are optimized for this situation; with the appropriate fixtures they can additionally be used for many standardized materials tests.

Key Advantages and Features (HIT 1100F and HIT 2000F)

Range of application

  • Component testing
  • Puncture tests on plastics to ISO 6603-2 and ASTM D3763
  • Accelerated puncture tests on plastics in accordance with various automotive standards
  • Puncture tests on plastic films to ISO7765-2, ASTM D7192, ASTM D4272
  • Charpy tests to ISO 179-2
  • Izod tests to ISO 180 and ASTM D256

Advantages and Features

Reliable test results

  • Sturdy guides make these drop weight testers ideal for testing components.
  • High natural measuring frequency enables accurate test results.
  • T-slotted mounting platforms allow flexible attachment of various test arrangements.
  • These drop weight testers can optionally be equipped with a temperature chamber and an acceleration unit.

Technical Overview

Technical data for Amsler HIT 1100F/HIT2000F basic instrument

Item No.

1050792

1050814

Maximum energy

275

440

J

Dimensions

Height

3270

3870

mm

Width

1400

1400

mm

Depth

920

920

mm

Drop height, maximum

1

1,5

m

Drop height, minimum

0,05

0,05

m

Drop mass, maximum

29,4

29,4

kg

Drop mass, minimum

9,3

9,3

kg

Drop velocity, maximum

4,4

5,4

m/s

Force signal resolution

16

16

bits

Measured-value rate (force signal), maximum

3

3

MHz

Clamping force

100

100

N

Weight

1450

1600

kg

Compressed air supply

Supply pressure

6

6

bar

Air consumption, approx.

10

20

l/impact

Required air-supply output-rate

600

600

l/min

Service unit

mounted on instrument

mounted on instrument

Required floor load capacity

20

20

kN/m²[1]

Leveling feet concentrated load

150

166

N/cm²

Electrical supply data

Electrical supply

230

230

V (1 Ph, N, PE)

Power consumption (pre-load), approx.

16

16

A

  1. It depends on the peak dynamic force the can be achieved

Acceleration unit

Acceleration unit for Amsler HIT 1100F

For higher speeds and energies

  • Easy to operate with Zwick Roell testing software

Description

Item number

Acceleration unit for Amsler HIT1100F
- Maximum impact velocity at 29,4 kg: 8,75 m/s
- Maximum energy at 29,4 kg: 1126 J
- Maximum impact velocity at 9,3 kg: 14,1m/s
- Maximum energy at 9,3 kg: 926 J

1050793

Acceleration unit for Amsler HIT 2000F

For higher speeds and energies

  • Easy to operate with Zwick Roell testing software

Description

Item number

Acceleration unit for Amsler HIT2000F
- Maximum impact velocity at 29,4 kg: 11,8 m/s
- Maximum energy at 29,4 kg: 2044 J
- Maximum impact velocity at 9,3 kg: 19,4 m/s
- Maximum energy at 9,3 kg: 1745 J

1050815

Temperature Chamber

Temperature chamber

For tests at low and high temperatures

Description

Item number

Temperature chamber for Amsler HIT1100F and Amsler HIT2000F
- Internal dimensions 400x400x400mm
- Temperature range -70 to 180°C
- LN² required for cooling

1050794

The universal drop weight tester for materials testing

Testing at low impact speeds of 2.2 m/s requires a larger drop weight; if testing at 6.6 m/s is required, acceleration is necessary. This drop weight tester caters for both situations, making it the perfect instrument to satisfy the requirements of a wide range of automotive industry specification standards. The feed and safety concept provides optimum operator convenience and safety. With this drop weight tester pre-conditioned test plates can be inserted and impacted in less than five seconds, allowing many puncture tests to be performed without the need to install a temperature chamber. The instrument can also be used for CAI, Charpy and Izod tests.

Key Advantages and Features (HIT 600F)

Range of application

  • Puncture tests on plastics to ISO 6603-2 and ASTM D3763
  • Accelerated puncture tests on plastics in accordance with various automotive standards
  • Puncture tests on plastic films to ISO 7765-2, ASTM D7192, ASTM D4272
  • Pre-damaging fiber composites (CAI) as per ASTM D7136, prEN 6038 and AITM 1.0010.

Advantages and Features

Reliable test results

  • High natural measuring frequency enables accurate test results.
  • High data acquisition rate (4MHz) for all measurement channels allows excellent resolution for measured curves.
  • Large transient memory allows measured values for brittle and ductile materials to be stored at full resolution.
  • Full coverage of AITM 1.008 energy ranges.

Operator-friendly

  • Excellent test area accessibility
  • No manual opening of safety devices in test area
  • Easy, manual feed of cooled specimens
  • Fast, safe, easy changeover between different configurations
  • Automatic series mode in testXpert III allows series testing with no operator intervention between individual specimens
  • Automatic lubrication of striker

Flexibility

  • The drop weight tester can optionally be equipped with an acceleration unit. This enables testing at up to 6.7 m/s and covers established automotive standards.

Technical Overview

Item No.

1050436

Maximum energy

500

J

Dimensions

Height

3120

mm

Width

1200

mm

Depth

800

mm

Drop height, maximum

1,3

m

Drop height, minimum

0,09

m

Drop mass, maximum

40

kg

Drop mass, minimum

2

kg

Drop velocity, maximum

5

m/s at 1,3 m drop height

Force signal resolution

16

bits

Measured-value rate (force signal), maximum

4

MHz

Clamping force

9,4

kN

Weight

1020

kg

Compressed air supply

Supply pressure

6

bar

Air consumption, approx.

20

l/impact

Required air-supply output-rate

600

l/min

Service unit

mounted on instrument

Required floor load capacity

10,4

kN/m²

Leveling feet concentrated load

40,5

N/cm²

Electrical supply data

Electrical supply

230

V (1 Ph, N, PE)

Power consumption (full-load), approx.

3,2

kW

Acceleration unit

Acceleration unit

For higher speeds and energies

  • Covers common automotive requirements
  • Easy to operate with Zwick Roell testing software

Description

Item number

Acceleration unit for Amsler HIT600F
- Maximum impact velocity at 40 kg: 5,7 m/s
- Maximum energy at 40 kg: 650 J
- Maximum impact velocity at 5 kg: 7,6 m/s
- Maximum energy at 5 kg: 145 J

1050548

The smaller drop weight tester for puncture tests

With a maximum impact speed of 4.4 m/s and a drop weight of 23 kg, this drop weight tester is ideally suited for puncture tests to ISO 6603-2. A standout feature is the excellent test area accessibility, enabling rapid completion of test series including direct feeding of temperature-conditioned test plates. This drop weight tester is unbeatable when it comes to efficiency and operator-friendliness.

The Amsler HIT230F is ideally equipped for multiaxial impact puncture tests on plastics.
Its range of application includes material characterization of standard specimens in accordance with established
standards in research and development and quality assurance.

  • Multiaxial impact puncture tests to ISO 6603-2, ASTM D 3763, ASTM D3029 (Method B) at room temperature and in extended temperature range.

Key Advantages and Features (HIT 230F multiaxial)

Advantages and Features

  • Safe, easy, reliable operation
  • Good access to test area.
  • Design allows flexible use of accessories plus easy changeover.
  • Intelligent safety system – no need to operate safety door when inserting specimens.
  • Innovative clamping system enables fast, easy specimen clamping.
  • Tests possible over a wide temperature range without installing an expensive temperature chamber in the test frame.
  • Cost-effective external specimen temperature-conditioning can be employed and/or existing devices in the laboratory can continue in use.
  • Innovative design throughout the force-measurement chain delivers very low-noise measured values, enabling reliable identification of characteristic materials properties in the force-deformation curve.
  • Safety device plus operator-friendly specimen clamping for high specimen throughput.
  • The drop weight is raised automatically; the drop height can be set as required in a range from 0.1 m to 1 m.
  • High (4 MHz) measured-value acquisition-rate combined with high (16-bit) resolution.

Technical Overview

Item No.

1044068

Maximum energy

230

J

Dimensions

Height

2600

mm

Width

1000

mm

Depth

600

mm

Drop height, maximum

1

m

Drop height, minimum

0,11

m

Drop mass

23,5

kg

Drop velocity, maximum

4,4

m/s at 1 m drop height

Force signal resolution

16

bits

Measured-value rate (force signal), maximum

4

MHz

Clamping force

6 ... 9

kN

Weight

400

kg

Compressed air supply

Supply pressure

6

bar

Air consumption, approx.

20

l/impact

Required air supply output rate

600

l/min

Service unit

mounted on instrument

Required floor load capacity

20

kN/m²

Leveling feet concentrated load

200

N/cm²

Electrical supply data

Electrical supply

100 ... 240

V (1 Ph, N, PE)

Power consumption (initial load), approx.

0,5

kW

The smaller drop weight tester for CAI

With a maximum impact speed of 4.4 m/s and drop weights between 2 and 10 kg, this drop weight tester is ideal for pre-damaging CAI specimens in accordance with various standards. A standout feature is the excellent test area accessibility, enabling rapid completion of test series including direct feeding of temperature-conditioned test plates. This drop weight tester is unbeatable when it comes to efficiency and operator-friendliness.

The Amsler HIT230F is ideally equipped for pre-damaging fiber composite plates
for the CAI (compression after impact) test currently used in the aerospace industry.

  • Pre-damaging fibre-composite test plates for the compression after impact (CAI) test
    as per Airbus AITM 1-0010, Boeing 7260, ISO 18352, DIN 65561, ASTM D7136, EN 6038

Key Advantages and Features (HIT 230F CAI)

Advantages and Features

  • Safe, easy, reliable operation.
  • Good test-area accessibility.
  • Design allows easy accessory changes.
  • Intelligent safety system – no need to operate safety door when inserting specimens.
  • Innovative force measurement chain design delivers very low-noise measured values, allowing detailed monitoring of the selective introduction of pre-damage.
  • High (4 MHz) measured-value acquisition-rate combined with high (16-bit) resolution.
  • Drop weight is raised automatically; drop height can be set to any required level from 0.1 m to 1 m.
  • Precise, stepless damage-energy adjustment achieved by varying drop weight and drop height
  • Accurate determination of actual impact speed shortly before point of impact.
  • Mechanical device arrests drop weight after initial impact, preventing multiple impacts.

Technical Overview

Item No.

1044081

Maximum energy

100

J

Dimensions

Height

2600

mm

Width

1235

mm

Depth

695

mm

Drop height, maximum

1

m

Drop height, minimum

0,11

m

Drop mass, maximum

10,2

kg

Drop mass, minimum

2,04

kg

Drop velocity, maximum

4,4

m/s at 1 m drop height

Force signal resolution

16

bits

Measured-value rate (force signal), maximum

4

MHz

Clamping force

manual

Weight

400

kg

Compressed air supply

Supply pressure

6

bar

Air consumption, approx.

20

l/impact

Required air-supply output-rate

600

l/min

Service unit

mounted on instrument

Required floor load capacity

20

kN/m²

Leveling feet concentrated load

200

N/cm²

Electrical supply data

Electrical supply

100 ... 240

V (1 Ph, N, PE)

Power consumption (pre-load), approx.

0,5

kW

1:36

Predamaging of composites

HIT230F drop weight tester - pre-damaging fiber composites for CAI tests

Specimen Preparation for Plastics

Good testing starts with a good specimen.

Testing solutions for the plastics industry
Standard thermoplastics and thermoset molding specimen are produced by injection or compression molding. Material characteristics are significantly influenced by production parameters such as pressure, temperature, and flow speed. Specimen are taken from slabs and components through mechanical processing such as per ISO 2818.   

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