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    R(D)-45A1型表面洛氏硬度計是一種輕負荷洛氏硬度試驗儀器。施加試驗力的速度由緩沖器來調節，試驗力的變換采用變荷手輪的旋轉而獲得，所以該機具有操作簡便、性能穩定、測試速度快、試驗力小、留下微小的壓痕等特點，在大多數情況下不影響試件的使用。

    該硬度計適用硬質合金、滲碳鋼、淬火鋼、硬鑄鐵及軟鋼、鋁合金、銅合金和可鍛鑄鐵的硬度的測定。 

    R(D)-45A1 the surface Rockwell hardness is a light load Rockwell hardness test equipment. Test force imposed by the speed of the buffer to adjust, the test force of the transformation could be changed by the hand wheel getting,so the hardness tester is simple, stable performance, the test speed of the fast, the test force of the small, leaving tiny indentation, and other characteristics, in most cases do not affect the use of samples.

    That degree of hardness accounts to be applicable to the black metals and have the rockwell   surname degree of hardness measurement of the color metals.It is extensive to be applocable to factory car with calculate the section.    

主要技術參數	Main technical parameters
初試驗力(N)：29.4	Preliminary test force(N)：29.4
總試驗力(N)：147,294,441	Total test force(N)：147,294,441
試件允許最大高度(mm)：180	Max height of speciments(mm)：180
壓頭中心到機身距離(mm)：140	Distance from indeneter, s center to outerwall(mm)：140
硬度計外形尺寸(mm)：463×241×660	Machine size(mm)：463×241×660
電源電壓：AC220V/50HZ	Power supply：AC220V/50HZ
儀器重量(kg)：70	Weight(kg)：70
硬度測試范圍	Degree of hardness test seope
(70-94)HR15N   (67-93)HR15T	(70-94)HR15N   (67-93)HR15T
(42-86)HR30N   (29-82)HR30T	(42-86)HR30N   (29-82)HR30T
(20-77)HR45N   (10-72)HR45T	(20-77)HR45N   (10-72)HR45T