High Speed Screw Jack G1-G3
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NEFF High Speed Screw Jack G1-G3 NEFF high speed screw jacks supplement our offer of worm gear screw jacks. They are more efcient and may be used in a broader eld of applications. They may be used in a medium load range ( 12.3 kN - 117 kN ), with a high lifting speed and longer operating time. All high speed screw jacks are equipped with hardened, sharpened and spiral-toothed bevel gear transmissions. Therefore, they attain high lifting speeds and improved efciency. The models N, V and R are available in three sizes with 2:1 and 3:1 transmissions. With ball screws, high speed screw jacks become even more dynamic. All high speed screw jacks work in all installation positions. Due to their cubic casing they can be mounted exibly. According to the customer’s request they are delivered with up to four drive shafts. Lifting assemblies with several high speed screw jacks do not therefore require additional bevel gears. NEFF Gewindetriebe GmbH . Karl-Benz-Str. 24 . 71093 Weil im Schönbuch . Phone: 0 71 57 / 5 38 90-0 . www.neff-gt.de . info@neff-gt.de

Technical Data and Dimensions, Version N/V Technical Data Version N/V: G1-N-TGS 24x5 Max. stroke and drag force [kN] Stroke per full turn of the srew shaft, ratio 2:1 in [mm] Stroke per full turn of the srew shaft, ratio 3:1 in [mm] Max. stroke speed in m/min ratio 2:1, nmax = 3000/min Max. stroke speed in m/min ratio 3:1, nmax = 3000/min Efciency Max. moment of a torque on the screw shaft in [Nm] 1) max. permissible screw revolution speed (max. 4,55m/min at 1820/min) 2) max. permissible screw revolution speed (max. 1,82m/min at 520/min) 3) max. permissible screw revolution speed (max....

Technical Data and Dimensions, Version R Technical Data Version R: G1-R-TGS 24x5 Max. stroke and drag force [kN] Stroke per full turn of the srew shaft, ratio 2:1 in [mm] Stroke per full turn of the srew shaft, ratio 3:1 in [mm] Max. stroke speed in m/min ratio 2:1, nmax = 3000/min Max. stroke speed in m/min ratio 3:1, nmax = 3000/min Efciency Max. moment of a torque on the screw shaft in [Nm] 1) max. permissible screw revolution speed (max. 4,55m/min at 1820/min) 2) max. permissible screw revolution speed (max. 1,82m/min at 520/min) 3) max. permissible screw revolution speed (max....

Operating time EDd/h in [%] Neff High Speed Screw Jack G1 Operating time EDd/h in [%] Neff High Speed Screw Jack G2 Operating time EDd/h in [%] Neff High Speed Screw Jack G3 To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd x fnneff If different speeds determine the average of speed: nm = n1*q1 + n2*q2 + ... ni*qi/100 nm = Average speed in [1/min] n1, n2, ...= Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] NEFF Gewindetriebe GmbH . Karl-Benz-Str. 24 . 71093 Weil im...