INKOMA JWM (Trapezoidal Screw Type) is a versatile and economical solution designed for general-purpose applications. It offers durability, low noise, and high load-holding capacity, making it ideal for various industrial uses.
Features:
- Economical Design: Simple and compact structure makes the JWM series a cost-effective solution.
- Low Noise: Due to the sliding contact of the trapezoidal screw, it is well-suited for low-noise environments.
- High Load Capacity: The trapezoidal screw thread provides a self-locking feature, allowing it to securely hold heavy loads.
- Note: In cases of vibration or shock, a brake unit may be required to ensure load retention.
- Stainless Steel Options: Models JWM025 through JWM300 are available in austenitic stainless steel, ideal for applications requiring rust resistance such as sluice gates, environmental equipment, and machinery in wet environments.
- Left-Hand Screw Option: A left-hand version is available, which moves in the opposite direction of the right-hand type while maintaining the same input rotation direction. This feature is useful when operating multiple jacks with one motor or when specific jack installation requires it.
Applications:
- Rust Prevention: Stainless steel models are suitable for environments where rust protection is crucial, such as in water gates or environmental equipment.
- Load Retention: With its self-locking capability, it is ideal for situations requiring stable load retention without external brakes (unless exposed to shock or vibrations).
The JWM series is a reliable, quiet, and cost-effective jack, offering both left-hand and stainless steel screw options for diverse industrial needs.
Size (JWM) | JWM002 | JWM005 | JWM010 | JWM025 | JWM050 | JWM100 | JWM150 | JWM200 | JWM300 | JWM500 | JWM750 | JWM1000 | ||
Basic Capacity | kN{tf} | 1.96 | 4.9 | 9.8 | 24.5 | 49 | 98 | 147 | 196 | 294 | 490 | 735 | 980 | |
{0.2} | {0.5} | {1} | {2.5} | {5} | {10} | {15} | {20} | {30} | {50} | {75} | {100} | |||
Outer Screw Diameter | mm | 12 | 16 | 20 | 26 | 40 | 50 | 55 | 65 | 85 | 120 | 130 | 150 | |
Minor Screw Diameter | mm | 8.8 | 10.8 | 14.8 | 19.7 | 30.5 | 38.4 | 43.4 | 51.3 | 67 | 102 | 112 | 127 | |
Screw Lead | mm | 3 | 4 | 4 | 5 | 8 | 10 | 10 | 12 | 16 | 16 | 16 | 20 | |
Gear Ratio | H Speed | 5 | 5 | 5 | 6 | 6 | 8 | 8 | 8 | 10 2/3 | 10 2/3 | 10 2/3 | 12 | |
L Speed | 20 | 20 | 20 | 24 | 24 | 24 | 24 | 24 | 32 | 32 | 32 | 36 | ||
Overall Efficiency | % | H Speed | 26 | 26 | 21 | 21 | 22 | 22 | 20 | 20 | 19 | 15 | 13 | 13 |
L Speed | 15 | 15 | 12 | 12 | 14 | 15 | 14 | 13 | 11 | 10 | 8 | 8 | ||
Max. Allowable Input Capacity |
kW | H Speed | 0.16 | 0.39 | 0.49 | 1 | 2 | 2.8 | 3.1 | 5 | 8.4 | 13.4 | 14.4 | 21.4 |
L Speed | 0.08 | 0.18 | 0.36 | 0.46 | 0.63 | 1.4 | 2.2 | 3.2 | 4.6 | 5.7 | 7.2 | 9.4 | ||
Tare Drag Torque | N・m {kgf・m} |
0.11 | 0.11 | 0.29 | 0.62 | 1.4 | 2 | 2.6 | 3.9 | 9.8 | 19.6 | 29.4 | 39.2 | |
{0.011} | {0.011} | {0.03} | {0.063} | {0.14} | {0.2} | {0.27} | {0.4} | {1} | {2} | {3} | {4} | |||
Allowable Input Torque | N・m {kgf・m} |
9.8 | 9.8 | 19.6 | 49 | 153.9 | 292 | 292 | 292 | 735 | 1372 | 1764 | 2450 | |
{1} | {1} | {2} | {5} | {15.7} | {29.8} | {29.8} | {29.8} | {75} | {140} | {180} | {250} | |||
Required Input Torque for Basic Capacity |
N・m {kgf・m} |
H Speed | 0.83 | 2.5 | 6.2 | 16.1 | 48.7 | 90.7 | 149 | 238.1 | 400.1 | 856 | 1380.5 | 2040.9 |
{0.08} | {0.26} | {0.64} | {1.6} | {5.0} | {9.2} | {15.2} | {24.3} | {40.8} | {87.3} | {140.7} | {208.0} | |||
L Speed | 0.42 | 1.1 | 2.9 | 7.4 | 20 | 45.3 | 72.3 | 124 | 244 | 453.3 | 761.3 | 1278.3 | ||
{0.04} | {0.12} | {0.30} | {0.75} | {2.0} | {4.6} | {7.4} | {12.6} | {24.9} | {46.2} | {77.6} | {130.3} | |||
Screw Movement/ per Revolution of Input Shaft |
mm | H Speed | 0.6 | 0.8 | 0.8 | 0.83 | 1.33 | 1.25 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | 1.67 |
L Speed | 0.15 | 0.2 | 0.2 | 0.21 | 0.33 | 0.42 | 0.42 | 0.5 | 0.5 | 0.5 | 0.5 | 0.56 | ||
Max. Input rpm | r/min | H Speed | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 |
L Speed | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | 1800 | ||
Max. Input rpm for Basic Capacity |
r/min | H Speed | 1800 | 1500 | 750 | 600 | 400 | 300 | 200 | 200 | 200 | 150 | 100 | 100 |
L Speed | 1800 | 1500 | 1200 | 600 | 300 | 300 | 290 | 250 | 180 | 120 | 90 | 70 | ||
Screw Shaft Rotational Torque for Basic Capacity |
N・m {kgf・m} |
2.6 | 8.6 | 20.1 | 65.1 | 201.5 | 503.6 | 813.2 | 1287.7 | 2531.9 | 5551.3 | 8921.8 | 13878.3 | |
{0.26} | {0.87} | {2.1} | {6.6} | {20.5} | {51.3} | {82.9} | {131.3} | {258.1} | {565.9} | {909.5} | {1414.7} |