Sizing　Linipower Jack

Enter the selection criteria

・Please use “.” for the decimal point and not “,” as the calculation error will occur.

Please enter your selection criteria.

Lifting load (maximum) W0 =  [kN]  [kgf]

Table 1 Service factor sf

Load NatureUsage exampleService factor
Smooth operation without shock
Load inertia small		 Valve opening and closing
Conveyor switching device		 1.0～1.3
Operation with slight impact
Load inertia medium		 Various moving devices
Various lifter lifting		 1.3～1.5
Operation with large shocks and vibrations
Large load inertia		 Transporting goods using a trolley
Positioning and holding of rolling rollers		 1.5～3.0

Note: The above Service factor table is a general guideline. Please determine the coefficient taking into consideration the usage conditions.
Lifting load (minimum) W1 =  [kN]  [kgf]
Service factor Sf =
Buckling strength confirmation load W2 =  [kN]  [kgf]
Desired lift speed V' =  [m/min]  [mm/s]
Stroke ST0 =  [mm]
Actual stroke ST =  [mm]
Operating frequency [Round trip/Hr]×[Hr/day]×[day/year]

Linipower Jack specifications decided

Please select the specifications of Linipower Jack.

[Display model number reference example]

JW M 050 U S H 10 U
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Series Name
Linipower
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Basic capacity
002: 1.96kN{0.2tf}
005: 4.90kN{0.5tf}
010: 9.80kN{1tf}
025: 24.5kN{2.5tf}
050: 49.0kN{5tf}
100: 98.0kN{10tf}
150: 147kN{15tf}
200: 196kN{20tf}
300: 294kN{30tf}
500: 490kN{50tf}
750: 735kN{75tf}
1000: 980kN{100tf}		 ｜
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Worm reduction ratio
L, H
For the actual reduction ratio,
please refer to
the detailed information.		 ｜
Nominal stroke
1: 100mm
2: 200mm
3: 300mm
4: 400mm
5: 500mm
6: 600mm
8: 800mm
10: 1000mm
12: 1200mm
15: 1500mm
20: 2000mm		 ｜
Flange mounting direction
*Notation required only for
traveling nut specifications.
Screw specifications
S: Basic form
M: Anti-rotation specification
R: Traveling nut specification
Screw Type
M: Trapezoidal Screw
B: Ball screw
H: High lead Ball screw		 Mounting Shape
U: For pushing up
D: For hanging		 Note) High lead ball screw type (screw type: H)
The anti-rotation specification (screw specification: M) is available upon request.
Please let us know the terms of use.
Screw Type Basic capacity Screw specifications and mounting shape Worm reduction ratio Flange mounting direction End fitting bellows Clevis fittings
・Sensor options ・Input options
Counter LS Internal LS Potentiometer Encoder motor

Jack model number

Basic capacity [kN] Overall efficiency η J
Thread root diameter d [mm] Maximum Allowable Input Capacitance [kW]
Screw lead L [m] Allowable no-load idling torque T 0 [N・m]
Worm speed ratio R Allowable input shaft torque [N・m]

判定：


Checking the actual speed

Enter the motor rotation speed and the actual total reduction ratio.

Motor rotation speed Nm =  [r/min]
Required input rotation speed N' = V'/L×R =  [r/min]
Required reduction ratio i' = Nm/N' =
Reference motor rotation speed
50Hz 1500 r/min
60Hz 1800 r/min
Actual total reduction ratio i = (Enter the total reduction ratio from the jack input shaft to the drive motor)
Actual lifting speed V = Nm×L/(i×R) =  [m/min]
 [mm/s]

Specifications

Required input shaft torque T = W0×Sf×1000×L/(2π×R×ηJ)+T0 = [N・m]
Required reverse torque (reference value) T' = W0×Sf×1000×L×ηJ/(2π×R)-T0 = [N・m]
Input Rotation Speed N = V/L×R = [r/min]
Required input capacity P = T×N/9550 = [kW]
Input shaft moment of inertia IJ = W0×1000/g×{L/(2π×R)}2 = [kg・m2]

判定：


Buckling strength check

Select the installation state.

Installation state
Support coefficient m =
Distance between points of action L1 =  [mm]
Buckling strength PCR = m×(d2/L1)2/1000 =  [kN]
Buckling safety factor SF = PCR/(W2×Sf) =  (>=4)

Installed state [Click to enlarge]

Fixed base - free shaft end

Clevis support on both ends

Fixed base - shaft end support

Reference Distance Stroke Metal fittings dimensions Clevis dimensions

判定：


Check the allowable screw shaft rotation speed (traveling nut only)

Support coefficient n =
Distance between points of action L2 =  [mm]
Allowable screw shaft rotation speed NC = 96×n×d×106/L22 =  [r/min]
Screw shaft rotation speed NS = N/R =  [r/min] (NC >= NS)

判定：


Check frequency of use

Usage time ts = ST/(V×1000) =  [min] 
Percentage duty cycle (%ED) %ED = [round trip/Hr] x 2 x usage time x 100/60 =  [%ED] 

判定：

Expected life calculation (Trapezoidal Screw type)

年間総走行距離 Ly = ST×2×[往復/Hr]×[Hr/日]×[日/年]×10-6 =  [km]
Expected lifespan Z = (JWM050以下:5km, JWM100以上:1km)/Ly =  [年]

Expected life calculation (Ball screw type)

等価荷重 PE = (W0×Sf×2+W1)/3 =  [kN]
Ball screw dynamic load capacity C =  [kN]
Short stroke correction factor fs =
運転条件係数 fd =
焼入硬度補正係数 fh =
寿命補正係数 f1 = (PE×fd)/(C×fh×fs) =
B10寿命総走行距離 L10 = 250/f13 =  [km]
年間総走行距離 Ly = ST×2×[往復/Hr]×[Hr/日]×[日/年]×10-6 =  [km]
Expected lifespan Z = L10/Ly =  [年]

Expected life calculation (High lead ball screw type)

Please contact us separately regarding the calculation of expected life for high lead types.

Selection results

形番

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必要入力容量

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[kW]

Reduction ratio

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<Caution>
This selection is based on theoretical calculations and does not guarantee the results.
Please fully understand the calculation formula for this selection, and allow for some leeway in the calculation results.
The final decision on the equipment to be used is up to the customer.