Specification Brand : CNYST BulletPoint : Piano Tools BulletPoint1 : ◆ Concrete Test Hammer generally applied to building components, bridges and all kinds of concrete components (panels, beams, columns, bridges) strength. BulletPoint2 : ◆ Test range: 10~60Mpa; The test hammer submit to standard of GB/T9138-1988 and JJG817-93 and JGJ/T23-2011 and ASTM C 805 BulletPoint3 : ◆ Stroke of rebound hammer: 75mm, Friction of pointer slider: 0.5N~0.8N BulletPoint4 : ◆ Standard impact energy: 2.207J(0.225Kgf.m) BulletPoint5 : ◆ The shell is made form high Aluminum in order to perfect protect instrument from damage and extend use life. BulletPoint6 : Weight: 2.9 oz (862 g) BulletPoint7 : The head with built-in discs indicates that the disc moves toward the striking surface at the moment of impact, eliminating the recoil and only conveys the striking force BulletPoint8 : Head Center: Steel, Welded, Lacquer Finish BulletPoint9 : The shaft is made of fiberglass and is inlaid to the bottom of the shaft tube Color : White ExternallyAssignedProductIdentifier : 7610733266944 ExternallyAssignedProductIdentifier1 : 0725370251523 ExternallyAssignedProductIdentifier2 : 725370251523 ExternallyAssignedProductIdentifier3 : 00039593331062 GpsrSafetyAttestation : 1 IncludedComponents : No ItemName : CNYST Concrete Test Hammer Concrete Rebound Tester with Test Range 10 to 60Mpa ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 30 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : masonry-hammers Manufacturer : CNYST Material : See the product description ModelNumber : HT-225 NumberOfItems : 1 PackageLevel : unit PartNumber : 308-32CU ProductDescription : Brief introduction: * The test hammer submit to standard of GB/T9138-1988 and JJG817-93 and JGJ/T23-2011 and ASTM C 805. concrete test hammer is applied to test the compressive strength of building concrete components, bridge and so on. Features: * Center rod is made from imported material, high accuracy and durable resistance. * Compared with other suppliers in the line of business, the product is more accuracy, good quality, and best price and longer use life. * Pointer slider is outside structure, its friction can be balance well and easy to be adjusted so that we can make sure that the instrument is accurate. Technical Specifications * Test range: 10~60Mpa * Standard impact energy: 2.207J(0.225Kgf.m) * Stroke of rebound hammer: 75mm * Friction of pointer slider: 0.5N~0.8N * Sphere radius of rebound pole SR: 25mm±1mm * Average rebound value on steel anvil Rm: 80±2 * Size: Φ54*278mm * Weight: ≈1KG