DIGITAL DIRECT / RESIDUAL SHEAR APPARATUS: 

ASTM D 3080:

Digital direct shear box, floor mounted with carriage assembly and load hanger with 10:1 lever loading device.

For determination of the direct shear strength on all types of Soils specimen size Diameter 60 mm & 100 mm and Square 60 mm x 60mm & 100 mm x 100 mm.

The Direct Digital Shear Apparatus meets the general requirements of BS1377 and has a normal load capacity of 8kg/sq. cm when the loads are applied through lever and 1.6kg/sq. cm when the loads are applied directly.

Microprocessor controlled stepper motor

• Control via the digital display with keyboard

• Return datum facility

• Fully stepless variable speed over the range of 0.00001 to 9.99999mm/minute

• RS232 port

• Forward/reverse travel limit switches

• Will accept either analogue or digital measuring devices

Features :

• RS 232 output for connection to PC (Optional).
• 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.

EXTRA Accessories: 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 Phase 50Hz