Introduction – Humboldt H-4156M CBR-Specific Load Frame User Manual
Page 3

Introduction
Product Description— H-4156M
The Humboldt H-4156M CBR-Specific Load Frame Set has been designed
to provide labs with a single-speed load frame specifically designed to do
California Bearing Ratio (CBR) testing. The machine has a one-speed motor with
a reversing switch that produces a uniform vertical movement of .05" (1.27mm)
per minute, ASTM D1883, AASHTO T193. The maximum piston travel is 3 1/2"
(88mm). The H-4156M is sold as a CBR-specific set and includes:
(1) H-4156M
CBR-Specific Load Frame (115 VAC 60 Hz, 1 phase)
(1) H-4454.100
Load Ring, 10,000lbf (50kN)
(1) H-4158.1
Dial Indicator, 1.000" x .001"
(1) H-4178
Penetration Piston with Stud
(1) H-4178BR
Dial Indicator Bracket
Product Description— H-4156M.4F
The Humboldt H-4156M.4F CBR-Specific Load Frame Set has been designed
for use in 220 50/60Hz applications and those who need to test CBR to the
BS 1377: Part 4 Standard of .04" (1.00mm) per minute. When operated at 60Hz,
the H-4156M.4F complies with the ASTM D1883 Standard; and, when operated
at 50Hz it complies with the BS 1377: Part 4 Standard. The H-4156M.4F also
includes the following items:
(1) H-4156M
CBR-Specific Load Frame (220 50/60Hz, 1 phase)
(1) H-4454.100
Load Ring, 10,000lbf (50kN)
(1) H-4158.1
Dial Indicator, 1.000" x .001"
(1) H-4178
Penetration Piston with Stud
(1) H-4178BR
Dial Indicator Bracket
Physical Specifications:
Shipping weight:
185 lbs. (78.9 kg)
Overall height:
39"
Base dimension:
16" x 18" x 10"