Product Name: Motorized Analog Rockwell Hardness Tester for metal Hardness Testing Model NO.: eRock-150E Customized: Customized Support Language: English or Chinese Rated Voltage: 220V (or 110V) Calibrating Method: Standard Hardness Test Blocks Mobility: Desktop Warranty: 1 Year Standard: ISO, ASTM, GB/T, BSEN Application: metal Measuring Range: Hra, Hrb, HRC Type: Rockwell Hardness Tester Display: Dial Resolution: 0.5hr Loading: Automatic Loading - Dwell - Unloading Product Name: Motorized Analog Rockwell Hardness Tester Trademark: EBP Transport Package: Plywood Box Specification: 520x240x700mm Origin: Zhejiang, China HS Code: 9024102000 Product Description Motorized Analog Rockwell Hardness tester for metal hardness testingWorking principle of Rockwell hardness test:The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload.There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, where A is the scale letter.Main Function:eRock-150EMotorized Rockwell hardness tester adopts the mechanism of automatic loading and unloading of the test force, the test force is regulated by the load-change hand wheel. It can select the dwell time and is very easy to use. Besides setting zero to dial, there is no man-made error. The instrument has high sensitivity and stability.Application range:Suitable for quenched steel, tempered steel, annealed steel, cold and hard casting, malleable cast iron, hard alloy steel, aluminum alloy, copper alloy, bearing steel etc. Technical Specification:ModeleRock-45ERockwellscaleHR15N, HR30N, HR45N, HR15T, HR30T, HR45TPreliminary test force3Kgf(29.42N)Total test force15Kgf(147.1N); 30Kgf(294.2N); 45Kgf(441.3N)Indication Resolution0.5HRHardness value range70-94HR15N, 42-86HR30N, 20-77HR45N, 67-93HR15T, 29-82HR30T, 10-72HR45T Hardness data readDialLoading methodAutomatic (Load, Dwell,Unload)Dwell time2-60STest spaceMaximum height :175mm; Maximum throat depth:160mmMachine Size / N.W520*240*700mm (L×W×H); 75kgPackage Size / G.W600*365*930mm; 90kgExecutive standardGB/T230.2 ,BSEN 6508, ASTM E18 , ISO 6508 , JJG112Packing List:Standard accessories Superficial Rockwellhardness tester host: 1 setDiamond Rockwellindenter:1 pc; Dead weights A/B/C: 3pcs1.5875mm diameter hard alloy steel ball indenter :1 pc, Standard hardness block: 3 pcs; Quality certificate :1 pcLarge/ Medium/ V-shapedtesting table: 1 pcDust-proof cover: 1 pc, Accessory case :1 pc Power cord: 1 pc; Operating instruction :1pc