Used Redexim Verti-Drain 7117 tractor mounted aerator fitted with the following:
Working width 1.70 mtr (68”)
Working depth Up to 150 mm (6”)
Tractor speed @ 500 rev’s at PTO
Hole spacing 55 mm (2-1/8”) Up to 2.0 km/h (1.25 mph)
Hole spacing 90 mm( 3 ½”) Up to 3.2 km/h (2.0 mph)
Hole spacing 125mm(5”) Up to 4.3 km/h (2.7 mph)
PTO speed Up to 500 rpm in 1st and 2nd gear, 400 rpm in 3rd.
Weight 575 Kg (1265 lbs)
Hole spacing side-to-side 55 mm (2-1/8”)
Hole spacing in driving direction 25 – 125 mm ( 1 - 5”)
Recommended tractor size 28 HP with lift capacity of minimum 700 Kg ( 1550 lbs) 
Spacing 55 mm (2-1/8”) Up to 3300 sq.mtr (29500 sq ft)/ hour
Spacing 90mm (3 ½ “) Up to 5300 sq.mtr (47000 sq.ft)/ hour
Spacing 125mm (5”) Up to 7200 sq.mtr (63000 sq.ft)/ hour
Maximum tine size Solid 12 x 150 mm (1/2”x 6”)
Hollow 19 x 150 mm (3/4”x 6”)
Slip clutch setting PTO Maximum 400 Nm. (3540 lb.inch.)
Three point linkage 3- point CAT 1
Front and rear roller with scrapers
3- shuttle gearbox