0.5J IEC Impact Hammer Courtesy of UL 1244 Figure 12.2

Measurement & Analysis Instruments > Safety Instrument
Include ISO 17025 CNAS & ILAC Calibration Certificate
Origin: China Guangdong
Item No.: LX-IK04

0.5J IEC Impact Hammer Courtesy of UL 1244 Figure 12.2 (SX1783)

Impact Emergy	MPE
0.5 J	± 0.04J

Note:

The apparatus consists of three main parts: the body, the striking element, and the spring-loaded release nose.

Note 1:

The body comprises the housing, the striking element guide, the release mechanism, and all parts rigidly fixed thereto. The mass of this assembly is 1.25 kg (2.756 lb mass).

Note 2:

The striking element comprises the hammer head, the hammer shaft, and the coking knob. The mass of this assembly is 250 g (8.81 oz. mass).

Note 3:

The hammer head has a hemispherical face of radius 10 mm (25/64 inch), and is of polyamide having a Rockwell hardness of R100; it is fixed to the hammer shaft in such a way that the distance from its tip to the plane of the front of the nose, when the striking element is on the point of release, is 20 mm (25/32 inch).

Note 4:

The nose has a mass of 60 g (2.1 oz. mass) and the nose spring is such that it exerts a force of 20 N (4.5 lbf) when the release jaws are on the point of releasing the striking element.

Note 5:

The hammer spring is adjusted so that the product of the compression, in millimeters, and the force exerted in newtons, equals 1000 (in pound-inches, 8.85), the compression being approximately 20 mm (25/32 inch). With this adjustment, the impact energy is 0.5 0.05 N m (4.43 0.443 pound force-inch).

Note 6:

The release mechanism springs are adjusted so that they exert just sufficient pressure to keep the release jaws in the closed position.

Note 7:

The apparatus is cocked by pulling the cocking knob back until the release jaws engage with the groove in the hammer shaft.

Note 8:

The blows are applied by pulling the release nose against the sample in a direction perpendicular to the surface at the point to be tested. The pressure is slowly increased so that the nose moves back until it is in contact with the release bars, which then move to operate the release mechanism and allow the hammer to strike.

UL 1244 Figure 12.2.jpg

Company introduction

HK LEE HING INDUSTRY CO., LIMITED are specialized in manufacturing special, custom built, test and measuring equipment for products testing as per international norms and offering calibration services and related information. Our products and services are used by research & development establishments, test laboratories, defense establishments, government institutions & manufacturing industries to fulfill the clients' requirements.

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