High Performance Screw Jack MH/JH-Series
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High Performance Screw Jacks MH/JH-Series The High Performance Screw Jacks are convincing with optimized worm gearing for higher efficiency and longer duty cycles. The separate lubrication system of the screw and the gear box allows an input-speed up to 3000 1/min. Enhanced drive torque and maximum lifetime are given by hardened and grinded worm gears.

High Performance Screw Jacks with trapezoidal screw 11 Dependent on stroke speed, duty cycle, etc. 2) H = High travel speed, L = Low travel speed. 3) The specified overall values are average values ^ Calculate with the low value if you have lower speeds, with the high value if you have higher input speeds. NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

Note: subject to technical changes (1) Screw extension (2) For trapezoidal screw (3) For ballscrews or anti-unscrewing device NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

High Performance Screw Jacks MH/JH-Series Design VK Size Note: subject to technical changes NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

(1) NL: usable stroke length Note: subject to technical changes NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

Performance data for High Performance Screw Jacks MH/JH NEFF Performance tables The NEFF Performance tables illustrate a simple overview to check the drive power, the drive torque and the holding torque for different speeds an lifting forces. Please calculate the max. surface pressure and the max. travel speed seperate. This values are not include in the performance tables. See chapter: Calculation Trapezoidal drives To calculate Screw jacks with other screw pitches use the formula below1) required screw pitch P (mm) standard screw pitch P (mm) ) x Value of NEFF Performance tables Circa...

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + ...ni x qi/100 nr n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + . _ni x q/100 n,, n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + ...ni x qi/100 nr n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + . _ni x q/100 n,, n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + ...ni x qi/100 nr n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

To calculate the Operating time EDn/h for other speeds, multiply the Operating time in [%] with the speed-factor fnneff: EDn/h in [%] = EDd/h x fnneff If different speeds determine the average of speed: nm = nl x q1 + n2 x q2 + . _ni x q/100 n,, n2, ... = Speed in [1/min] during the clearance q1, q2, ... = Dues of load duration in [%] nm = Average speed in [1/min] NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

Technical data and dimensionMH/JH-Series with limit switches Limit switch with roller plunger: Actuating cam 30° according to DIN 69639 - Minimum actuation stroke: 2.6 mm +/- 0.5mm - Differential stroke: 0.85 mm +/- 0.25mm - Minimum switch-on force: 1 N - Start-up speed: 0.001 to 0.1 m/s - Connection: 5-core (brown/blue: normally open; black/black: normally closed; green/yellow: earth conductor - Switching capacity: NFC 63146 NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

NEFF Gewindetriebe GmbH | Karl-Benz-Str. 24 | D-71093 Weil im Schonbuch | Phone: +49 (0) 71 57 - 5 38 90-0 | info@neff-gt.de | www.neff-gt.de

Accessories program High Performance Screw Jacks MH/JH series For the High Performance Screw Jacks of the MH/JH series, a comprehensive accessory program is available. It ranges from accessories for the screw ends (mounting plates, rod ends, fork heads) to components for the swivel-type fixture of Screw Jacks (cardan adapter, cardan bearing) to limit switches and motor adapters. By means of the motor adapters, various drives such as standard three-phase motors or servo motors can be attached. For manual operation or emergency adjustment, hand wheels can be flanged directly to the worm...