technology DLT strand jacks Operating sequences Strand cable Safe lifting capacity 15.5 MT per strand Top anchor Hydraulic cylinder Hollow centre Bottom anchor technology General view of strand jack technology General view of bottom anchor Strand wedges Grip strand when closed Grip opening jack Grip opening Plate. Connected to grip release tubes technology Anchor block, with machined cones for strand wedges Cut away of bottom anchor technology Operation of bottom anchor - closed technology Operation of bottom anchor - open technology General view of top anchor technology Cut away of top anchor technology Operation of top anchor - closed technology Operation of top anchor - open STRAND JACK LOAD LIFTING SEQUENCE technology DL-P40 computer control system representation Top anchor status 120% Green = closed Top anchor closed Red = open 100% Closed Expected load 0% Jack load indicator Bottom anchor status Load in bottom anchor Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 0 mm Bottom anchor closed Closed 1 technology Ready for strand lifting stroke 120% 100% Closed Jack stroke indicator 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 15 mm 2 technology Extend ram to transfer load to top anchor 120% Closed 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 250 mm 3 technology Strand lifting stroke Closed 120% 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 500 mm 4 technology Top of strand lifting stroke Closed 120% 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 480 mm 5 technology Retract ram to transfer load to bottom anchor technology Open top anchor technology Open top anchor Open 120% 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 480 mm 6 technology Ready for ram retract stroke 120% Open 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 250 mm 7 technology Retract stroke 120% 100% Open 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 0 mm 8 technology Bottom of retract stroke technology Close top anchor technology Close top anchor 120% 100% Closed 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 0 mm 9 technology Back Ready for next lifting cycle STRAND JACK LOAD LOWERING SEQUENCE technology 120% 100% Closed 0% Closed technology Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 0 mm Jack fully retracted with grips closed technology Open top anchor technology Open top anchor 120% 100% Open 0% Closed technology Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 0 mm Ready for ram extend stroke 120% Open 100% 0% Closed technology Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 250 mm Ram extend stroke Open 120% 100% 0% Closed technology Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 450 mm Top of ram extend stroke technology Close top anchor technology Close top anchor Closed 120% 100% 0% Closed Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 450 mm 1 technology Ready to transfer load to top anchor Closed 120% 100% 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 480 mm 2 technology Extend ram to transfer load to top anchor technology Open bottom anchor technology Open bottom anchor Closed 120% 100% 0% Open Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 480 mm 3 technology Ready for strand lowering stroke 120% Closed 100% 0% Open Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 250 mm 4 technology Strand lowering stroke 120% 100% Closed 0% Open Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 50 mm 5 technology Bottom of strand lowering stroke technology Close bottom anchor technology Close bottom anchor 120% 100% Closed 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 50 mm 6 technology Ready to transfer load into bottom anchor 120% 100% Closed 0% Closed Jack No. 3 Load 1580 kN Pre-set 1600 kN Stroke 20 mm 7 technology Transfer load into bottom anchor technology Open top anchor technology Open top anchor 120% 100% Open 0% Closed Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 20 mm 8 technology Ready for ram extend stroke 120% Open 100% 0% Closed Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 250 mm 9 technology Ram extend stroke Open 120% 100% 0% Closed Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 450 mm 10 technology Top of ram extend stroke technology Close top anchor technology Close top anchor Closed 120% 100% 0% Closed Jack No. 3 Load 0 kN Pre-set 1600 kN Stroke 450 mm 11 technology Back Ready for next lowering cycle
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