Servo-Pneumatic Four Point Bend Apparatus standalone, 4PB

Main Features

  • Conforms to test standards: AASHTO T321 | EN 12697-24 Annex D | EN 12697-26 Annex B
  • Digital servo-controlled pneumatic actuator provides accurate control of loading wave shape
  • Innovative “floating straight-edge” on-specimen transducer eliminates errors due to frame compliance
  • Backlash free rotation and translation on all load and reaction points
  • Sinusoidal or haversine controlled stress loading
  • Controlled force, motorised specimen clamping
  • Non-linear regression data fitting ensures reliable determination of phase and modulus

Links: Data Sheet / Brochure

SKU: 79-PV74A02 Categories: , Tag:

Description

The Servo-Pneumatic Four Point Bend Apparatus stand-alone features a pneumatic actuator which is digitally controlled by a pneumatic servo-valve to provide accurate loading in both stress and strain control modes. In addition, the Servo-Pneumatic Four Point Bend Apparatus features a beam cradle which has been designed to four point bending with backlash free rotation and horizontal translation of all load reaction points.

Controlling the Four Point Bend Apparatus stand-alone is the Integrated Multi-Axis Controls and Data Acquisition System (IMACS).

The Four Point Bend Apparatus can be used as part of your Superpave performance based testing program

 79-PV74A02
Servo-Pneumatic Four Point Bend Apparatus stand-alone, including IMACS digital control and data acquisition system.
110-230 V, 50-60 Hz, 1 ph

Technical Specs

  • Loading frequency: up to 60 Hz (load limitations apply at higher frequencies)
  • Load capacity: up to 5 kN dynamic
  • Actuator stroke: 10 mm
  • Specimen size (h x w x l): 70 x 80 x 380 mm max
  • Yoke alignment tool for specimens (h x w x outer span centres): 50 x 50 x 355.5; 70 x 70 x 420 mm
  • Air supply: clean, dry air at 800-900 kPa, 5 L/sec min.
  • Dimensions (l x w x h): 460 x 230 x 600 mm
  • Weight: 35 kg

IMACS 

  • Dimensions (l x w x h): 450 x 360 x 270 mm
  • Weight: 11 kg

Accessories

Environmental Chamber
79-PV70E02

Environmental chamber for servo-pneumatic testing machine, -25 to 60° C.
110-230 V, 50-60 Hz, 1 ph