Pneumatic Direct / Residual Shear Machines utilize a pneumatic loading system, which eliminates the need to apply pressure to a specimen with multiple weights.
The machine uses two pistons to apply loads: a smaller diameter rolling diaphragm piston for lighter loads of 4lb to 100lb, and a larger diameter piston for loads up to 1,500lb. The maximum shear displacement is 0.8in (20.3mm). Strain rate is easily set using the digital thumbwheels and can be controlled from 0.0001—0.3in/min (0.0025—7.62mm/min). A cabinet constructed from durable steel protects the machine against harsh lab settings and the included Teflon®-coated anodized aluminum water chamber is designed to resist corrosion. Units include a 1,500lbf Load Cell and 15ft (4.6m) of air supply tubing. Direct Shear Boxes, sold separately, are Teflon®-coated anodized aluminum to resist corrosion and available in a wide range of sizes.
2001 / 2001F Standard Pneumatic Direct Shear Machine uses dial indicators that measure vertical and shear displacement.
2001-D / 2001-DF Digital Pneumatic Direct Shear Machine utilizes an S-type load cell to measure shear load. Horizontal and vertical measurements are taken by a Linear Variable Displacement Transducer (LVDT). Four-Channel Data Readout displays load and displacement values. Data is transferred to the user’s PC via Mini-USB and is uploaded in ASCII format to a spreadsheet program. This model also performs residual shear functions on soil specimens.
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Model 2001: 110V / 60Hz
Model 2001F: 220V / 50Hz
Model 2001-D: 110V / 60Hz
Model 2001-DF: 220V / 50Hz
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