CBR/LBR Specific Load Frame

The HM-4156 is a fully automatic, single-speed Load Frame, (0.05 inches/minute), (1.27mm/minute), designed for those who want a high-quality, application-specific Load Frame that provides simple operation with built-in data acquisition capabilities. The HM-4156 provides two channels with integral data acquisition to accommodate a load cell and transducer for CBR/LBR testing. (Includes load cell, displacement transducer, transducer bracket and penetration piston) The machines's digital display provides the ability to monitor test data in real-time, as well as the ability to see a test's peak value at a glance.

Features include:
• 8" platen provides roomy, stable base for test equipment
• Provides two channels with real-time data acquisition
• Backlit LCD display for viewing test data and break values.
• Battery-backed, real-time clock
• RS232 interface for computer control and/or downloading data.
(optional USB Cable is available, order HM-000379)
• Provides Chart recorder output port.
• Nonvolatile test data storage and instrument calibration
• Auto conversation of instrument calibration between
English and Imperial units and SI or metric units
• User-selectable between CBR/LBR or Soil Cement tests
• User-selectable time intervals for recording test data
• Unit Auto-reverses to home position at the end of test
• Automatic triggering of test logging data
• Includes Humboldt's HMTS CBR/LBR Software Module HM-3005SW
Shipping wt. 265 lbs. (120kg)

NOTE for 220 50/60Hz operation:
When HM-4156.4F is operated at 60Hz, the machines complies with ASTM D1883, .05" (1.27mm) per minute. When it is operated at 50Hz this machine complies with BS 1377: Part 4, .04" (1.00mm) per minute.

CBR-Specific Load Frame

The H-4156M Load Frame has been designed as a low-cost solution to doing CBR testing. It features one-speed operation with a preset speed specifically for CBR tests. The CBR speed is set at 0.050 inches/minute (1.27 mm/minute), ASTM D1883. Maximum piston travel is 3-1/2" (88mm). H-4156M is sold as a set with Items in above chart included with load frame. Overall dimensions are: 18 x 18 x 38-1/2"H (457 x 457 x 978mm). Shipping wt. 265 lbs. (120kg)

H-4156M.4F
Same specifications as the H-4156M, except 220 50/60Hz. When operated at 60Hz the machine complies with ASTM D1883, .05" (1.27mm) per minute. When it is operated at 50Hz this machine complies with BS 1377: Part 4, .04" (1.00mm) per minute. Shipping wt. 266 lbs. (121kg)

Manual: H-4156M_-_CBR_Load_Frames.pdf

CBR Mechanical, Loading Press

The CBR (California Bearing Ratio) loading press (load frame) uses a two-position mechanical jack to provide steady test speeds, as well as rapid travel of the platen for positioning of the sample. The Press, includes a H-4454.100, 11,000lbf (48.8kN) calibrated load ring, a H-4178, 1.95" (49.5mm) dia. (3 in2 area) penetration piston, a H-4158.1, 1.000" x .001, dial indicator and a H-4178BR dial indicator bracket, Overall dimensions: 18" x 12" x 34" (45.8 x 30.5 x 86.4cm).

Manual: H-4156_LoadingPress.pdf

CBR Testing Set with H-4156 Loading Press

The CBR (California Bearing Ratio) testing set includes the following items: (1) H-4156 Mechanical Loading Press; (4) H-4152 Molds; (1) H-4153 Spacer Disk; (4) H-4154 Filter Screens; (2) H-4172 Swell Plates; (1) H-4158 Tripod Attachment; (4) H-4175 Slotted Surcharge Weights; (1) H-4170A Density Hammer; (1) H-4144 Straight Edge, (1) H-4174 Cutting Edge

CBR Field Test Set

The CBR (California Bearing Ratio) field test set is designed for making CBR determinations in the field and is built around a modified H-4156 Load Frame. The set includes 1 of each of the following: H-4156J Gear Box w/ handle, H-4156SB Swivel Base; H-4454.020 2200 lbf Load Ring; H-4454.050 5500 lbf Load Ring; H04178F.4 Penetration Piston - 4"; H-4152F.1 Extension Set; H-4152F.2 Extension Set; H-4158.1 Dial Indicator 1.000" x .001"; H-4466.10 Extension Points - 1" length; H-4470 Magnet Holder w/ swivel; H-4152F.8 Steel Bridge Support – 8 ft., and 2 of H-4179F.10 Surcharge Weight and H-4179F.20 Surcharge Weight.

CBR Field Test Set, Metric

Metric version of the H-4152F with metric-reading dial indicators.