Car Usage and 0.7(A) Continuous Current(A) introduction of marble

Buy offer Details

Hi, we are looking for electric telescopic lifting columns for a gait training mobile device (see the pdf file). There is our specs :
Voltage 24 V
Total stroke 1 200 mm
Retracted length 750 mm or less if possible
Max dynamic load 675 N (150 lb)
Max static load 4 000 N (600 lb)
Flexion moment 500 N.m (1000 N at 500 mm offset)
Torsion moment 500 n.m
Minimum speed with 675 N load 18 mm/s (faster is better)
Max unit weight 20 kg (lightness is important for our needs)
Is it possible/available ? If yes, how much it will cost for two unit, and what is the lead time ?
Thank you
Francois Chagnon