No.258-UTL
IMPACT TESTER (WITH ULTRA LOW TEMP. REFRIGERATING MACHINE)
Overview of IMPACT TESTER (WITH ULTRA LOW TEMP. REFRIGERATING MACHINE)
This is a pendulum impact tester designed to evaluate the impact resistance and toughness of plastics. Equipped with an ultra-low-temperature refrigerating machine, this model enables Charpy and Izod impact testings under controlled temperature environments ranging from -50°C to 60°C. Similar to the No.258-L, it features a unique double-layer door structure, which allows the operator to mount test specimens from the outside while keeping the inner door closed. This minimizes temperature loss under ultra-low-temperature conditions to the absolute minimum, providing highly reliable test data.
Features
Low-Temperature Testing
Two Types of Low-Temperature Impact Testers
Impact testing can also be performed in low-temperature environments. The No.258-L allows testing between -35℃ to 60℃, while the No.258-UTL supports testing as low as-50℃ to 60℃. Please select the model that suits your desired testing temperature.
Touchscreen Operation
Basic Operation and Result Registration Available
Basic operations are performed using the touchscreen. After the test, the impact value is automatically calculated based on the hammer lift-up angle.
The test results can also be checked in the test results screen.
Accurate Testing
Testing Within the Low-Temperature Chamber
Impact testing is performed inside the low-temperature chamber, ensuring accurate testing conditions without any change in the test environment. Testing inside the chamber also prevents sample scatter, making sample collection easier.
Input Tools for Increased Efficiency
We offer three types of input tools that simplify sample dimension measurement. These tools significantly reduce measurement time and improve testing efficiency.
Specification
| Temperature | -50℃–60℃ (refrigeration control) |
|---|---|
| Main Unit Specifications | ・Touchscreen operation ・Analog Scale included ・Electric hammer release ・Safety cover with interlock |
| Safety Devices | Safety cover with interlock switches |
| Other specs | Refer to the specifications of No.258-D/PC |
| Power Source | AC 200 V 3-phase 40 A 50/60 Hz |
| Dimensions and Weight(Approx.) | W1,670×D1,480×H2,130 mm, 710 kg |
Common specifications
| Standards | JIS/ISO | ASTM | |||
|---|---|---|---|---|---|
| Reference Standards | JIS K 7111-1,ISO 179-1 | JIS K 7110,ISO 180 | ASTM D6110-10 | ASTM D256 | |
| Test Method | Charpy Impact Test | Izod Impact Test | Charpy Impact Test | Izod Impact Test | |
| Hammer Energy Capacity (J)*1 | 0.5, 1, 2, 4, 5 | 7.5, 15, 25*2 | 1, 2.75, 5.5, 11, 22 | 2.7 and above (past results: 0.5, 1, 2, 4, 5, 7.5, 15, 25) | 2.7 to 21.7 (past results: 1, 2.75, 5.5, 11, 22) |
| Anvil Lift for Charpy | Required | – | – | – | – |
| Impact Velocity | 2.9m/s | 3.8m/s | 3.5m/s | 3.46m/s | 3.5m/s |
| Hammer Release Angle | 150° | ||||
| Hammer | Refer to the respective sections below for details. | ||||
| Anvil | Refer to the respective sections below for details. | ||||
*2 Hammers with a capacity of 50 J are not available.
Hammer
Charpy Hammers
| Standard | Potential Energy | Impact Velocity | Angle of Striking Edge | Radius of Striking Edge |
|---|---|---|---|---|
| ISO/JIS | 0.5J | 2.9m/s | 30±1° | R2±0.5mm |
| 1J | ||||
| 2J | ||||
| 4J | ||||
| 5J | ||||
| 7.5J | 3.8m/s | |||
| 15J | ||||
| 25J | ||||
| ASTM | 2.7 and above (past results: 0.5, 1, 2, 4, 5, 7.5, 15, 25) | 3.46m/s | R3.17±0.12mm |
The characteristics of the Charpy hammers differ between the test standards as shown in the table above. In ISO and JIS standards, the hammer length changes according to the impact velocity. Therefore, the same hammer cannot be used to create, for example, a 4 J impact and 7.5 J impact. Two different hammers must be prepared.
Izod Hammers
| Standard | Potential Energy | Impact Velocity | Radius of Striking Edge |
|---|---|---|---|
| ISO/ JIS | 1J | 3.5m/s | R0.8±0.2mm |
| 2.75J | |||
| 5.5J | |||
| 11J | |||
| 22J | |||
| ASTM | 2.7-21.7J | 3.5m/s | R0.8±0.2mm |
The same hammer is sometimes used between ISO (or JIS) and ASTM impact tests as the details of the hammers specified in the two standards are similar. However, to be precise, the shape of the striking edge differs between the standards as shown in the above image. Therefore, to conform to the test standards, hammers that match the test standard shall be used.
Anvil
Charpy Anvil
| Symbol | Parameter | ISO/JIS | ASTM |
|---|---|---|---|
| ー | Parallelism between long axis of test sample and reference plane | ±4/1000 | ー |
| R2 | Radius of curvature of anvils | 1±0.1 mm | 3.17±0.12 mm |
| θ2 | Angle of taper of anvils | 10±1 ° | 0 |
| θ3 | Angle of slope of anvils | 5±1 ° | 0 |
| ー | Angle of supports and anvils | 90±0.1 ° | 90° |
| L | Span between sample supports | 62±(0.5/0) mm | 101.6±0.5 mm |
The shape of the anvil differs between ISO (or JIS) and ASTM standards. Therefore, to perform both ISO and ASTM standardized tests, two different anvils shall be prepared.
Izod Anvil
| Symbol | Parameter | JIS/ISO | ASTM |
|---|---|---|---|
| ー | Sample angle | 90±2 ° | ー |
| ー | Parallelism with face of reference sample | ±0.025 mm | ー |
| P2 | Horizontality of top surface of vise | ±3/1000 | ー |
| θ2 | Angle between support block and top surface of vise | 90±0.5 ° | ー |
| P3 | Parallelism in horizontal and vertical direction | ±0.05 mm | ー |
| R2 | Top edge radius of support | 0.2±0.1 mm | 0.25±0.12 mm |
In strict terms the anvil shapes differ between ISO (JIS) and ASTM standards, but are sometimes used mutually as the differences are minor.
Options of IMPACT TESTER (WITH ULTRA LOW TEMP. REFRIGERATING MACHINE)
Hammer Weight Set
Add weights to the hammer to support two capacities.
CSV File Output
Motorized Sample Clamping
* Available for Izod only.
Related products
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Evaluating impact resistance and toughness of plastics | UNIVERSAL IMPACT TESTER / No.258 Series
-
Evaluating impact resistance and toughness of plastics | IMPACT TESTER (DIGITAL/TOUCHSCREEN) & IMPACT TESTER (DIGITAL/PC) / No.258-D, No.258-PC
-
Evaluating impact resistance and toughness of plastics at low temperatures | IMPACT TESTER (WITH REFRIGERATING MACHINE) / No.258-L
-
Evaluating impact resistance and toughness of plastics at ultra-low-temperatures | IMPACT TESTER (WITH ULTRA LOW TEMP. REFRIGERATING MACHINE) / No.258-UTL
-
Evaluation of impact resistance and toughness of plastics meets automation | IMPACT TESTER (FULL AUTOMATIC) / No.258-ZA
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