IK Impact Test in Shell Mechanical Impact Resistance Detection

Abstract

IK Impact Test follows the pendulum impact principle as the core basis. By accurately controlling the impact energy, angle and drop point, it simulates external mechanical collision. It can efficiently detect the impact resistance of product shells. It is applicable to lamps, power distribution cabinets, non-metallic power cabinets, household and similar electrical appliances, and can complete impact tests with different energy levels for such products. Taking LISUN IK07-10 IK Impact Test equipment as the research object, this paper systematically expounds its working principle, applicable standards, technical parameters, corresponding relationship of IK grades and engineering application. Combined with standard data tables, it illustrates the applicability of the equipment in multiple industries, providing a reference for enterprise model selection and test implementation.

Introduction

In the fields of lighting, household appliances, power distribution, industrial control and outdoor equipment, product shells are frequently subjected to mechanical stress such as impact, bumping and hammering during transportation, installation and use. This may easily cause cracking, deformation and damage, further leading to internal component damage, insulation failure and electric shock safety hazards. To uniformly evaluate the ability of equipment shells to resist external mechanical impact, international and domestic IK code protection grade systems have been established, and IK Impact Test equipment has been adopted as the standard testing device.

IK Level Tester IK07-10

LISUN IK07-10 IK Impact Test equipment is designed and manufactured strictly in accordance with GB/T 2423.55 and IEC 60068-2-75 standards. It covers a wide energy range from 2J to 50J and supports testing from IK07 to IK10 (IK11 optional). It is suitable for impact strength verification of lamps, metallic and non-metallic electrical cabinets, household and similar electrical appliances, serving as key equipment for product R&D, type test and factory inspection.

Working Principle and Test Value of IK Impact Test

IK Impact Test realizes quantitative impact based on the conversion of gravitational potential energy into kinetic energy. The hammer head with specified mass is lifted to a set height and released; the pendulum swings freely to impact the sample surface. By precisely controlling pendulum length, hammer weight, lifting height and release angle, the impact energy error is kept within the standard allowable range. Equipped with adjustable brackets and positioning mechanism for normal sample placement, the equipment ensures accurate impact points, consistent impact direction and repeatable test results.

Core Test Value
•  Shell Strength Evaluation: Verify whether shell materials, structure, wall thickness and reinforcement design can withstand impact with specified energy.
•  Safety Performance Verification: Judge whether cracks, damage, exposed live parts or functional failure occur after impact.
•  IK Grade Classification: Provide corresponding IK protection grades in accordance with IEC 62262 and GB/T 20138 to support certification and market access.
•  Basis for Design Optimization: Locate weak structural points to guide structural reinforcement, material upgrading and process improvement.
•  Quality Consistency Control: Conduct batch sampling inspection to ensure factory products meet strength requirements and reduce after-sales and safety accidents.

IK Impact Test supports standardized impact tests with multi-angle, multi-position and multi-energy levels, widely applied to mechanical safety evaluation of electrical and electronic products, lamps, power distribution equipment and household appliances.

Applicable Standards and Scope

LISUN IK07-10 IK Impact Test equipment fully complies with the following domestic and international standards:

•  Domestic Standards: GB/T 2423.55, GB/T 7000.1, GB 4706.1, GB 2099.1, GB/T 8898.
• International Standards: IEC 60068-2-75, IEC 60598-1, IEC 62262, EN 50102.

Application Scope
It is applicable to mechanical impact strength tests of various lighting lamps, outdoor and industrial power distribution cabinets, metallic and non-metallic power cabinets, household electrical appliances, plugs, sockets, switches, electric control boxes and outdoor electrical equipment.

Core Technical Parameters of LISUN IK07-10 IK Impact Test

Basic Parameters
• Distance from pendulum pivot axis to impact element axis: 1000mm
•  Impact energy range: 2J–50J
• Grade coverage: IK07(2J), IK08(5J), IK09(10J), IK10(20J); IK11(50J) optional
•  Structural features: Adjustable mounting bracket and impact angle; fixed sample placement for free pendulum impact
•  Operation type: Standard electric type IK07-10; simple manual type IK07-10S

Correspondence Between IK Grade and Impact Energy

Impact Energy, Equivalent Mass and Drop Height

Structural Features and Equipment Advantages

Adopting modular and standardized design, LISUN IK07-10 IK Impact Test equipment balances convenient operation and test accuracy:
• Precise Energy Control: Standardized design of pendulum length, hammer weight and height with energy error ≤±1%, meeting certification-level test requirements.
• Adjustable Bracket and Angle: Adaptable to samples of different sizes with flexible adjustment of impact position and angle.
• Stable Release Mechanism: Ensures free swing of pendulum without initial velocity and high test consistency.
• Dual Model Selection: Electric model with automatic lifting and release for high-frequency laboratory use; manual model with cost-effective design suitable for production line sampling.
• Strong Expandability: Support upgrading to IK11 with optional 50J hammer head to meet higher strength test demands.
• Stable and Reliable Performance: Over ten years of market application with simple operation, convenient maintenance and complete after-sales service system.

For low-energy impact below 2J (IK01–IK06), LISUN recommends dedicated spring impact hammer, forming a full-grade testing solution together with IK Impact Test.

Test Procedure and Result Judgment

Standard test procedure using IK Impact Test:
• Sample Installation: Fix the tested product under normal use condition on the test bracket to ensure stable placement without displacement.
• Parameter Setting: Select corresponding hammer head, mass and drop height according to target IK grade.
• Impact Point Confirmation: Mark key and weak positions on the shell in accordance with standard requirements.
• Impact Execution: Lift the pendulum to the set height, release to impact the sample with specified times per test point.
• Appearance and Function Inspection: Check shell cracking, damage, deformation and depression after test; inspect exposed live parts and operating function.
• Grade Judgment: The sample is deemed qualified if no damage, no potential safety hazard and normal function are maintained.

This procedure can be directly applied to 3C, CE and UL certification as well as factory inspection with authoritative and valid test data.

Application Scenarios and Industry Significance

IK Impact Test is standard essential equipment for mechanical safety detection of electrical products, with typical applications as follows:

• Lighting Lamps: IK grade testing for outdoor street lamps, floodlights, courtyard lamps and industrial lamps.
• Power Distribution Equipment: Shell strength verification of metallic/non-metallic distribution boxes, power cabinets, outdoor terminal boxes and junction boxes.
• Household Appliances: Safety testing for outer shells of washing machines, refrigerators, small household appliances, switch panels, plugs and sockets.
• Electrical and Electronic Products: Impact resistance verification of instruments, controllers, sensors and outdoor communication equipment.
• Export Certification: Meet IEC/EN/GB standard requirements to support global market access.

Standardized testing by IK Impact Test helps enterprises greatly improve product structural reliability, reduce failure rate, comply with regulatory requirements and enhance market competitiveness.

Conclusion

IK Impact Test is the core standard equipment for evaluating the external mechanical impact resistance of electrical and electronic product shells. It realizes scientific quantification of shell robustness and IK protection grade through precise and controllable pendulum impact. With full compliance with domestic and international standards, wide energy coverage, adjustable angle bracket, dual model configuration and high stability, LISUN IK07-10 IK Impact Test is perfectly applicable to R&D verification and quality inspection of lamps, electrical cabinets, household appliances and power distribution equipment.

It is recommended that enterprises select compliant and reliable IK Impact Test according to target IK grades, and implement standard test procedures strictly to ensure qualified mechanical safety performance, stable product quality and smooth passing of various certifications.