King Portable Brinell Ha
rd
ness
T
ester
3
©Copyright King Tester Corporation 2017. All Rights Reserved
www.Kingtester.com
Rev. March 2017
3.
Technical Parameters
Test Force:
3000kg (500kg, 750kg, 1000kg, and 1500kg are
optional)
Accuracy of Test Force:
1%
Indenter:
10 mm carbide ball indenter (2.5mm & 5mm ball
optional)
Testing Range:
16-650 HBW
Max. Specimen Height:
13” or 20”
Throat Depth:
4” or 6” (unlimited with Chain Adapter)
Repeatability:
ISO 6506/ASTM E110
Error:
ISO 6506/ASTM E110
Net Weight:
34 lbs.
4.
Principle & Components
The King Tester uses a hydraulic principle with hand-operation to apply the 3000kg test force. The
central part of King Tester is a small hydraulic system in which a release valve is used to control the
test force. When the force reaches 3000kg, the release valve will open and the pressure will begin to
drop. The tester should be pumped an additional 3 times after reaching 3000kg. The components of the
tester are shown as Fig. 1.
The tester consists of a base and a test head.
The base is composed of carriage, anvil, anvil holder, throat, handle, and elevating system. The base
with anvil is easy to use to clamp parts or to test piping. The test head is installed between the side
plates which hold the tester. The screw elevating system is controlled by the hand crank which can be
moved up and down to select the proper height for the test head. The base is constructed and designed
to eliminate deflection.
The test head is comprised of a gauge, pump handle, indenter, oil cylinder, pressure release lever, pump
handle, and calibrating valve.
The test head is a sophisticated hydraulic system. By pumping a small number of times, the cylinder
(indenter) will produce a large force. The function of the dial gauge is to indicate the approximate test
force. The pump handle is used to create the test force; and the indenter applies the force onto the
workpiece and result is a standard Brinell indentation. The cylinder stores the oil; the pressure release
lever is similar to an on/off switch used to initiate the creation of the test force. The calibrating
assembly controls how much pressure is created.
