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SWL series screw jack overview:
1.SWLM (Trapezoid screw)
SWLM (trapezoidal screw) is
suitable for low speed and low frequency. Main components: Precision
trapezoid screw pair and high precision worm-gears pair.
Economical:
Compact design ,easy operation, convenient maintenance.
Low speed,
low frequency:Be suitable for heavy load, low speed, low service
frequency.
Self-lock: Trapezoid screw has self-lock function, it can
hold up load without braking device when screw stops traveling.
Note:Braking device equipped for self-lock will be of malfunction
accidentally when large jolt & impact load occur.
2. SWLB (General ball screw)
SWLB (General ball screw) is
suitable for high speed, high frequency and excellent performance.Main
components: Precision ball screw pair and high precision worm-gears
pair.
High efficiency: Rolling friction improve efficiency greatly,
only a little drive power can generate great thrust force.
High
speed:Rolling friction speed up travel of screw easily.
Lifetime
longer: High precision ball screw can make SWLB's lifetime longer by 3
times comparing with SWLM.
Note ;Braking devices or motor with braking devices are
necessary when choosing SWLB
 
Direct-connected-motor
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