Impact Hammer Apparatus – IEC 62368-1 Annex Y.4.4 Compression Test

Impact Hammer Apparatus – IEC 62368-1 Annex Y.4.4 Compression Test for Audio/Video Equipment

The Impact Hammer Apparatus is a precision mechanical test device manufactured by KingPo, designed to perform the compression and impact test specified in IEC 62368-1 Annex Y.4.4 for audio/video, information, and communication technology equipment. After the initial test in clause Y.4.4 b), specimens are cooled for 24 hours at the manufacturer-specified minimum temperature or -33°C (if unspecified), then subjected to repeated impacts from a 1.35 kg hammer dropped from 150 mm height.

The hammer head is made of stainless steel, with a diameter of 28.6 mm and a flat striking surface of 25.4 mm diameter featuring slightly rounded edges. Specimens are placed on short lengths of 50×100 mm minimum clear spruce wood during impact. The test is repeated every 24 hours for two additional days, followed by 24 hours rest at 25°C ± 3°C before final compliance check. The apparatus is used to examine specimens for cracking, deformation, or other adverse effects after cold exposure and mechanical stress.

KingPo Factory Advantages

KingPo is an ISO9001 and CE certified manufacturer with over 15 years of experience in audio/video equipment safety testing devices. We maintain stock of IEC 62368-1 Annex Y.4.4 impact hammer apparatuses for immediate shipment, with over 100 units supplied to certification labs and manufacturers worldwide since 2020. All units include detailed calibration documentation, 1-year warranty, and rapid after-sales response from our Dongguan facility.

Professional Construction & Technical Precision

Key features include:

• Hammer Mass & Material: 1.35 kg total weight, stainless steel head for durability and consistent impact
• Striking Surface: 28.6 mm diameter head, 25.4 mm flat surface with rounded edges to prevent unintended cutting
• Drop Mechanism: Fixed 150 mm drop height for repeatable and standards-compliant impact energy
• Specimen Support: Designed to accommodate 50×100 mm minimum clear spruce wood blocks as specified
• Repeatability: Manual or guided drop system ensuring consistent 24-hour cycle testing
• Safety & Stability: Stable base and anti-slip design for safe laboratory operation

These elements ensure compliance with the exact requirements of IEC 62368-1 Annex Y.4.4.

Primary Use Cases & Business Value

The impact hammer apparatus supports critical stages:

• Product Development – Assess enclosure robustness after cold exposure and mechanical stress
• Certification Testing – Generate data for IEC 62368-1 Annex Y.4.4 compliance
• Quality Control – Batch verification of impact resistance in audio/video equipment
• Failure Analysis – Identify cracking or deformation risks in plastic/metal enclosures

It helps manufacturers improve product durability, reduce field failure rates, and achieve faster certification.

Compliance & Regulatory Assurance

Fully compliant with IEC 62368-1 Annex Y.4.4 (audio/video, information and communication technology equipment – impact test after cold exposure). Calibration certificates available (additional cost). Regular verification of drop height, hammer mass, and striking surface is recommended to maintain accuracy.

Compliance Design Statement

This equipment is strictly designed and manufactured in accordance with the requirements of IEC 62368-1 Annex Y.4.4 (impact test after cold exposure for audio/video equipment). It is specially used to evaluate the mechanical strength and compression resistance of enclosures and components after 24-hour cold exposure at -33°C or manufacturer-specified minimum temperature, simulating real-world mechanical stresses to ensure product reliability, safety, and compliance with international standards.

Procurement Benefits

In-stock availability enables fast delivery. Simple, durable design requires minimal training. Comprehensive documentation and responsive after-sales service ensure long-term reliability. This impact hammer apparatus improves enclosure safety validation, supports compliance claims, and minimizes quality risks. Contact us today for your quote – we’ll respond within 24 hours with detailed specifications and pricing.