Description and Specification for Lab Tenders
Direct Shear Apparatus.
Used to determine the resistance to shearing of all types of soil
specimens both consolidated and drained, undisturbed or remoulded
The machine can accommodate specimens dia. 60, 100 mm, and square 60 x 60, 100 x 100 mm.
The apparatus is equipped with a control closed loop motor with epicycloid reducers.
At the beginning of each test, the machine performs an automatic and
complete internal check, a position reset with the elimination of all
possible positioning errors and all pauses.
The input of all the test patterns is achieved by the interaction of the
keyboard and the alphanumeric display with self-memory, thus granting
infinitesimal resolutions in short times.
All data are input and stored when the machine is in stand-by, without
affecting the specimen under test with quick machine setting.
Possibility to fix maximum excursion of the shear box, so as to interrupt automatically the test.
It is possible to input a different return speed (residual shear) in
relation to the one used for the shear test, thus allowing a quick
playback to select the residual shear test, saving a lot of time.
For determining the direct shear strength of soils on specimen size 60mm x 60mm x 25mm.
Display of both speed and displacement with 0.00001 mm resolution
Shear speed between 0.00001 to 9.99999 mm/minute
Max shear effort: 5000 N possible on the whole speed range
Possibility of direct vertical load, or with a lever arm ratio 10:1
Max vertical direct load: 500N; with lever arm: 5500N
Display and pilot lamps to signal any bad functioning and alarms
Box group mounted on ball track with high-quality antifriction system
Read value results are immediate and of extreme accuracy
Extremely easy and practical use, not requiring qualified staff.
Shear box, hollow punch, and tamper are not included in the standard
supply and have to be ordered separately Power supply: 230 V A.C. Single