HM-399 Load Frame (120V/50-60Hz) has a higher 20,000lbf (89kN) capacity and precision strain rate range of 0.00001 to 0.29999in/min (0.000254 to 7.62mm/min). It can be used in CBR and LBR testing, as well as soil cement, unconfined compressive strength and triaxial testing when fitted with the required test-specific Component Set, which is sold separately. A motor jog function advances the platen to 0.3in/min for faster set-up. The micro-stepping motor and drive controller allow for precise control of loading rates to ±1%. Daylight opening is 11.9x37.3in (302x947mm). The unit is equipped with a 1/4hp DC motor, and operates at 115V/60Hz. Horizontal cross-head heights are easily changed using adjusting nuts, and the coarse-threaded 1.25in (32mm) high-strength plated vertical rods are corrosion resistant. Its sturdy powder-coated steel finished cabinet stands up to rugged use.
HM-399F has the same features, but operates at 230V/50-60Hz.
- 20,000lbf (89kN) capacity Load Frame
- Works well in CBR and other laboratory soils tests using test-specific component sets
- Corrosion-resistant vertical rods
- Load Frame, 0.00001 to 0.29999in/min (120V/50-60Hz or 230V/50-60Hz)