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Product No: IK01-07
The IK01-07 Spring Impact Hammer is a high-precision testing device designed by LISUN specifically for evaluating the impact resistance of product casings. Featuring an integrated structure and a precision spring drive system, it consistently delivers impact energy consistent with IK ratings (e.g., IK01 to IK07), ensuring repeatability and accuracy during testing. It is widely used for mechanical strength testing of casings, operating levers, handles, knobs, indicator lights, signal lights, and lampshades for accessories such as LED lighting, household appliances, and electronic products. This ensures that the tested products can withstand potential misuse and other accidents, ensuring safe and reliable operation.
Standards：
| Standards No. | Standards Name |
| IEC 60068-2-75:2014 Clause 6 Test Ehb: Spring hammer | Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests |
| IEC 60598-1:2025 Clause 10 Mechanical strength | Luminaires – Part 1: General requirements and tests |
| IEC/EN 61010-1:2010 Clause 7 Mechanical hazards | Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1: General requirements |
| IEC 60065:2021 Clause 9 Mechanical strength | Audio, video and similar electronic apparatus – Safety requirements |
| IEC 60320-1:2015 Clause 10 Mechanical strength | Appliance couplers for household and similar general purposes – Part 1: General requirements |
| IEC 60335-1:2020 Clause 21 Mechanical strength | Household and similar electrical appliances – Safety – Part 1: General requirements |
| IEC 60400:2014 Clause 8 Mechanical strength | Lampholders for tubular fluorescent lamps and starterholders |
| IEC/EN 60601-1:2021 Clause 16 Mechanical strength | Medical electrical equipment – Part 1: General requirements for basic safety and essential performance |
| IEC 60519-1:2021 Clause 12 Mechanical integrity | Safety in installations for electroheating and electromagnetic processing – Part 1: General requirements |
| IEC/EN 61058-1:2017 Clause 10 Mechanical strength | Switches for appliances – Part 1: General requirements |
| UL 1244:2020 Clause 7 Mechanical strength tests | UL Standard for Safety Electrical and Electronic Measuring and Testing Equipment |
| EN 60730-1:2013 Clause 21 Mechanical strength | Safety of household and similar electrical appliances – Part 1: General requirements |
| IEC 62262:2002 Clause 5 IK Code | Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code) |
| GB/T 2423.55-2023 条款 5 试验 Ehb：弹簧锤 | 电工电子产品环境试验 第 2 部分：试验方法 试验 Eh：锤击试验 |
| GB/T 7000.1-2023 第 10 章 机械强度测试 | 灯具 第 1 部分：一般要求与试验 |
| GB 4706.1-2005 第 21 章 机械强度 | 家用和类似用途电器的安全 第 1 部分：通用要求 |
| GB 2099.1-2021 第 24 章 机械强度验证 | 家用和类似用途插头插座 第 1 部分：通用要求 |
| GB/T 8898-2011 第 13 章 机械强度测试 | 音频、视频及类似电子设备 安全要求 |
According to IEC 62262, the IK rating (Degrees of Protection Against External Mechanical Impacts) is a core indicator for measuring a product’s ability to withstand external mechanical impacts. It’s expressed as “IKXX,” where “XX” is a two-digit number (ranging from 00-10). A higher number indicates a higher level of impact protection and, consequently, a higher impact energy level (measured in joules) that can be resisted. The following table shows the relationship between different IK ratings and impact energies:
| IK Level | IK Level Description | Impact Energy J | Application Examples |
| IK00 | No protection | 0 | Non-exposed internal components, sealed circuit boards |
| IK01 | Protected against light touch (such as fingers, small objects) |
0.14 | Small electronic components and sensors in low-risk indoor areas |
| IK02 | Resist minor impacts (such as light impacts with tools, small parts falling) |
0.2 | Desktop office equipment housings (such as keyboard and mouse housings) |
| IK03 | Resist to mild impact (such as small equipment, mobile phone collision) |
0.35 | Home appliance control panels (such as air conditioners, TV panels) |
| IK04 | Resist to moderate impact (such as collision with hard objects, tool dropping) |
0.5 | LED lamp housing, printer housing, router housing |
| IK05 | Resist heavy impact (such as wrench, screwdriver impact) |
0.7 | Industrial control boxes, medical device housings (such as monitors) |
| IK06 | Resist to strong impact (such as a 1kg object falling from a short distance) |
1 | Outdoor lighting equipment, large electrical appliance housings(such as washing machines) |
| IK07 | Resist to heavy impact (such as a 1kg object falling from a height of 1m) |
2 | Commercial display screens, elevator control panels, distribution boxes |
LISUN offers two types of IK spring impact hammers:
• Single Type (one spring impact hammer for each IK level): IK01, IK02, IK03, IK04 , IK05, IK06, IK07
• Universal Type (The six IK levels are concentrated into an adjustable spring impact hammer): IK01-06
Note: The above IK spring hammers can be calibrated using the LISUN IK01-07-CAL spring hammer calibration device.
LISUN IK Level Tester – After-sales Frequently Asked Questions (FAQ)
LISUN IK Level Tester were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link.
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