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Screw Jack RNS-Series
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Catalog excerpts

Screw Jack RNS-Sereis * Introduction High speed bevel gear screw jacks offers higher efficiency and greater speed than other series mechanical worm gear screw jacks. At the same time, high speed bevel gear jack still provide the benefit of a self-locking trapezoidal screw,no special brake is required to prevent the jack from lowering under load. Spiral bevel gears increase strength for higher capacities. High speed bevel gear screw jacks also act as a miter gear box, making them an ideal choice for multi-jack lifting systems. As many as three output shafts may be specified for mounting motors,...

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Screw Jack RNS-Sereis * Selection Guide 1. Model Selection Model Lifting Capacity(tons) Lifting Screw(Tr) mm Gear Ratio(N) Gear Ratio(L) Travel/Turn(N) mm Travel/Turn(L) mm Worm Torque at Full Load(N) Nm Worm Torque at Full Load(L) Nm Efficiency Rating(N) % Efficiency Rating(L) % Max Power/Jack kw Max Input Shaft Torque Nm Housing Weight kg Screw&Pipe Weight/100mm Stroke kg

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Screw Jack RNS-Sereis * Selection Guide 3. Input Forms Selection 4. Screw Top End Types Selection 5. Gear Ratio Selection Manual Operated N: Fast speed: 1 full turn 1 mm travel L: Low speed: 1 full turn 0.25 mm travel Electric Driven (input 1500 rpm) N: Fast speed: 1500 mm/min L: Low speed: 375 mm/min

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7. Duty&Environment Selection Duty Cycles _________ times per day or _________ times per month Ambient Temperature __________ ℃ Conditions __________ (Clean / Dirty, Indoor / Outdoor) 8. Accessories Selection N=Standard jack, no additional options P=Protective tube R=Rubber bellows Y=Hand wheel 9. Design application sketch, very important 10. Special working conditions, please consult sales / engineers

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