Lim-Tec screw jack catalog-SJB Series

Lim-Tec screw jack catalog-SJB Series
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Lim-Tec screw jack catalog-SJB Series

Product catalog summary
Overview: The document outlines technical specifications and operational guidelines for ball screw jacks, including acme and ball screw types. It discusses configurations, load capacities, and efficiency metrics.
Specifications: Various models such as SJA and SJB are detailed, specifying type (acme or ball screw), size, model, ratio, stroke, and input configurations. Accessories like brakes, limit switches, and safety nuts are also covered.
Load and Efficiency: Detailed tables provide information on maximum lifting loads, rated dynamic loads, screw dimensions, worm ratios, and efficiencies. The document emphasizes buckling resistance and includes formulas for calculating critical buckling force.
Operational Guidelines: Proper maintenance and lubrication are highlighted as essential for maximizing lifetime. Lifetime calculations for ball screws and notes on optimal ambient temperature ranges are provided.
Performance Tables: Performance tables detail lifting speeds, input torque, and power requirements for various models and load capacities, noting operational restrictions due to thermal limits.
Selection Guide: A selection table guide advises on mounting options and correction values for different configurations, stressing the importance of consulting engineers when selecting screw jacks within operational limits.
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Catalog excerpts

Lim-Tec screw jack catalog-SJB Series-2

Selection Table Guide CODING Type Front Attachment Input Version Input Shaft 5 S Traveling screw V1 Special NF Standard head P1 Single input shaft RH Right hand BRE Brake 10 R Traveling nut L1 TS Ball joint P2 Double input shaft LH Ieft hand FCG Mechanical Limit switches Rod end Motor flange SJB Ball screw 20 TF P3 FCP Inductive proximity switches Flange end Flange and extended shaft (PNP normally closed) 50 FL P4 Clevis end Bellows 80 FO B Spherical flange Safety nut 100 FQ SN 200 SS Stainless steel housing 300 SA Stainless steel screw 450 AB Anti-bachlash device 700 HBP Hinged bearing plate...

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Lim-Tec screw jack catalog-SJB Series-3

Selection Table Guide Performance Table Size Rated dynamic load kN Screw dia x pitch[mm] Worm ratio Stroke for one input turn[mm] Max input power[kw] Max starting torque at full load[nm] Starting efficiency Running efficiency at 1500rpm Housing material Weight[kg] Weight per 100mm screw & protective tube[kg] Spheroidal graphite iron 6 Note:Ambient temperature of SJ screw jack is -20℃ - +40℃(-40℃ - +70℃ are available) Lifetime calculation The lifetime of Ball screw Jack SJB series depends on the lifetime of ball screw and worm gear and shaft, we just need to calculate the lifetime of screw, worm...

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Lim-Tec screw jack catalog-SJB Series-4

Selection Table Guide Nm=input torque required Lifting Load kW=input power required Lifting Load Note:The purple figures in the tables indicates operational restrictions due to thermal limits.Selection of screw jacks using these figures should only be carried out in consultation with our engineers.When your selection is made within the areas shaded purple,you will need to reduce duty cycle or choose the bigger size screw jack in order to allow effective heat dissipation. LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD.

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Lim-Tec screw jack catalog-SJB Series-5

Selection Table Guide Nm=input torque required Lifting Load kW=input power required Lifting Load Lifting Load Note:The purple figures in the tables indicates operational restrictions due to thermal limits.Selection of screw jacks using these figures should only be carried out in consultation with our engineers.When your selection is made within the areas shaded purple,you will need to reduce duty cycle or choose the bigger size screw jack in order to allow effective heat dissipation.

 Open the catalog to page 5
Lim-Tec screw jack catalog-SJB Series-6

Selection Table Guide Nm=input torque required Lifting Load kW=input power required Lifting Load Note:The purple figures in the tables indicates operational restrictions due to thermal limits.Selection of screw jacks using these figures should only be carried out in consultation with our engineers.When your selection is made within the areas shaded purple,you will need to reduce duty cycle or choose the bigger size screw jack in order to allow effective heat dissipation. LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD.

 Open the catalog to page 6
Lim-Tec screw jack catalog-SJB Series-7

Selection Table Guide Nm=input torque required Lifting Load kW=input power required Lifting Load Lifting Load Note:The purple figures in the tables indicates operational restrictions due to thermal limits.Selection of screw jacks using these figures should only be carried out in consultation with our engineers.When your selection is made within the areas shaded purple,you will need to reduce duty cycle or choose the bigger size screw jack in order to allow effective heat dissipation.

 Open the catalog to page 7
Lim-Tec screw jack catalog-SJB Series-8

Overall Dimensions of Screw Jack SJB10 Screw Jack Base Line Model S Traveling Screw Base Line Base Line Left Hand Input Right Hand Input Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD. Acme Screw Jack

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Lim-Tec screw jack catalog-SJB Series-9

Overall Dimensions of Screw Jack SJB20 Screw Jack Base Line Model S Traveling Screw Base Line Base Line Left Hand Input Right Hand Input Acme Screw Jack Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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Lim-Tec screw jack catalog-SJB Series-10

Model S Traveling Screw Base Line Left Hand Input Right Hand Input Base Line Base Line Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD. Acme Screw Jack

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Lim-Tec screw jack catalog-SJB Series-11

Overall Dimensions of Screw Jack SJB22 Screw Jack Base Line Model S Traveling Screw Base Line Left Hand Input Right Hand Input Base Line Acme Screw Jack Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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Lim-Tec screw jack catalog-SJB Series-12

Base Line Model S Traveling Screw Ø40X10 Base Line Base Line Equally Spaced Left Hand Input RH Right Hand Input Acme Screw Jack Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD.

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Lim-Tec screw jack catalog-SJB Series-13

Overall Dimensions of Screw Jack SJB51 Screw Jack Base Line Base Line Model S Traveling Screw Base Line Equally Spaced Left Hand Input Acme Screw Jack Ball Screw Jack RH Right Hand Input Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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Lim-Tec screw jack catalog-SJB Series-14

Base Line Model S Traveling Screw Ø50X10 Base Line Base Line Equally Spaced Left Hand Input Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD. Acme Screw Jack RH Right Hand Input

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Lim-Tec screw jack catalog-SJB Series-15

Overall Dimensions of Screw Jack SJB81 Screw Jack Base Line Model S Traveling Screw Ø50X20 Base Line Base Line Left Hand Input Acme Screw Jack Ball Screw Jack RH Right Hand Input Equally Spaced Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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Lim-Tec screw jack catalog-SJB Series-16

Base Line Model S Traveling Screw Base Line Left Hand Input Right Hand Input Acme Screw Jack Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD.

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Lim-Tec screw jack catalog-SJB Series-17

Overall Dimensions of Screw Jack SJB101 Screw Jack Left Hand Input Right Hand Input Acme Screw Jack Base Line Model S Traveling Screw Base Line Base Line Equally Spaced Ball Screw Jack Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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Lim-Tec screw jack catalog-SJB Series-18

Base Line Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack J2 138 268 268 LIM-TEC BEIJING TRANSMISSION EQUIPMENT CO.,LTD. Ball Screw Jack Left Hand Input Right Hand Input Acme Screw Jack Base Line Model S Traveling Screw M56X4 (Standard Head NF) Base Line Equally Spaced

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Lim-Tec screw jack catalog-SJB Series-19

Overall Dimensions of Screw Jack SJB201 Screw Jack Base Line Base Line Equally Spaced Acme Screw Jack Ball Screw Jack Left Hand Input Right Hand Input Anti-backlash Screw Jack Acme Screw Jack Ball Screw Jack

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.