Servo Control Load Frames

Servo Control Load Frames feature a 10,000lbf (44.4kN) or 20,000lbf (88.9kN) load capacity and an extra-wide strain rate range of 0.00001–2in/min (0.0001–50.8mm/min). These load frames are ideal for performing a comprehensive range of soil mechanics applications, including CBR/LBR, triaxial shear, unconfined compression, soil-cement tests, and various asphalt tests. The strain rates are precisely regulated to within ±1% under load, utilizing closed-loop electronic feedback from a powerful 2hp continuous servo motor.

The Servo Control Load Frames are equipped with a human-machine interface (HMI) that allows users to easily input the desired strain rate quickly and accurately. The HMI controller displays the current strain rate throughout the test, while the servo motor continually acquires feedback to maintain the precise strain rate, regardless of the applied load.

Adjusting nuts on the 1.25in (31.75mm) coarse-threaded vertical rods allow easy height adjustment of the horizontal crosshead. A daylight opening of 11.9×37.3in (302.2×947.4mm), WxH accommodates CBR/LBR molds, triaxial cells, and test sample fixtures and components. The platen diameter is 8in (203.2mm). The rugged frames have sturdy 16ga powder-coated steel enclosures.

Gilson Load Frames are compatible with Digital Component Sets, which are configured for specific tests are purchased separately and enable full data collection. Each set features the high-quality instrumentation necessary to measure load and displacement. These test sets are designed for fast and easy installation and include an HM-418 Two-Channel Data Readout with GetData 5 software, an S-Type load cell, a 2in (50.8mm) LVDT, and the necessary fixtures and brackets for mounting.

Features

• Suitable for a range of soil and asphalt testing applications
• Servo motor maintains the precise strain rate, regardless of the applied load
• Quickly input the desired strain rate using the HMI
• Shortcut buttons for popular 0.5 and 2.0in/ minute strain rates
• Easily adjust the horizontal crosshead on the threaded vertical rods

Included Items

• Servo Control Load Frame

Accessories

• CBR/LBR Component Sets contain analog or digital components for CBR/LBR tests.
• Two-Channel Digital Readout Kits display real-time force and displacement data and are used for triaxial and other tests.
• Soil-Cement Component Sets contain analog or digital components for soil-cement tests.
• Unconfined Compression Component Sets contain analog or digital components for unconfined compression tests.
• Asphalt Component Sets contain analog or digital components for Marshall stability tests.
• Data Acquisition Software records specimen and real-time test data for a wide range of soil laboratory tests and prepares reports following applicable ASTM and AASHTO requirements.
• Swivel Platens are required during soil-cement testing in compliance with ASTM D133.
• Rolling Load Frame Cart allows portability and positions the load frame at the proper height.