The HT-225B Portable Schmidt Hammer Concrete Rebound Test Hammer is a high-quality and durable instrument used for concrete inspection. The center rod is made from imported material, ensuring high accuracy and durability. The shell is made from high Aluminum or high polymer material, providing excellent protection for the instrument and extending its lifespan. The outer shell of the instrument is made from a polymer composite material with exceptional impact strength, commonly used in aviation, construction, and machinery industries. This material ensures the rebounder is a low-carbon and efficient concrete inspection tool. The pointer slider of the HT-225B is an outside structure, allowing for balanced friction and easy adjustment, ensuring accurate measurements. Compared to other suppliers, this product offers superior accuracy, quality, and a competitive price, making it an excellent choice for concrete testing. The test range of the HT-225B is 10~60Mpa, with a standard impact energy of 2.207J(0.225Kgf.m). The stroke of the rebound hammer is 75mm, and the friction of the pointer slider is 0.5N~0.8N. The sphere radius of the rebound pole SR is 25mm1mm. The average rebound value on a steel anvil is Rm: 802. The size of the instrument is 54*278mm, and it weighs approximately 2.5KG. Included in the package is 1 Concrete Rebound Tester, providing everything you need for concrete testing. The HT-225B Portable Schmidt Hammer Concrete Rebound Test Hammer is a reliable and efficient tool for professionals in the construction industry, offering accurate measurements and long-lasting performance. Key Features: High accuracy and durable resistance Made from high Aluminum or high polymer material for protection and extended lifespan Polymer composite material with excellent impact strength Outside structure pointer slider for balanced friction and easy adjustment Test range of 10~60Mpa Standard impact energy of 2.207J(0.225Kgf.m) Stroke of rebound hammer: 75mm Size: 54*278mm