Screw jacks are devices that convert the rotation of e.g. a motor into the linear motion of a screw.
Screw jacks are devices that convert the rotation of e.g. a motor into the linear motion of a screw.
They work on the principle of a worm gearbox, which drives the screw, causing it to change its position or the position of a nut “walking” linearly around it. The great variety of types and versions of these devices gives a wide range of possibilities to use them as alternatives to pneumatic or hydraulic systems. Thanks to their use, the system can be significantly simplified without compromising its technical parameters. Electric jacks can be installed individually or as assemblies of elements connected by shafts.
Available series: SJ, MA, HS.
Benefits of the jacks:
- easy installation and control; high level of safety
- energy consumption only during work
- no need for complex and emergency pneumatic or hydraulic installations
- possibility to operate at very high and low temperatures (no risk of freezing or fire)
- accuracy in stopping position
- keeping the position under load (self-braking)
- reliability in compression- expansion movement
- large number of accessories
Screw jacks usually have a setting or adjustment function. The range of available mechanical sizes, linear speeds, motor types used and additional accessories allows easy adaptation to different applications.
Zobacz również
Stainless steel sprockets
10,00złChiaravalli's stainless steel sprockets are made of AISI 304L steel in accordance with DIN 8187, ISO/R 606.Bearing drive shafts
10,00złChiaravalli chain discs with INA KRR-AH02-C5 bearings or 8x3 to 1 ¼" economic bearings.SPZ, SPA, SPB, SPC V-belt pulleys
10,00złChiaravalli V-belt pulleys are integral parts of belt transmissions equipped with drive belts.Chiaravalli planetary gearboxes
10,00złPlanetary gearboxes are toothed gears, which, due to their design (central circulation wheel and satellites) are characterized by very high ...Rings, hubs
10,00złThe bushings are available in an open ring design in accordance with DIN 705 and C-AB.Sprockets with hardened rim
10,00złChiaravalli is a manufacturer of hardened rimmed sprockets. The wheels are made of C45 carbon steel according to UNI 7845 standard.Chiaravalli worm gearboxes
10,00złWorm gearboxes are the most commonly used gearboxes in industrial machines.Sliding couplings
10,00złChiaravalli's sliding overload couplings are simple in design and operation.Chain couplings
10,00złChain couplings consist of two chain wheels connected by a two-row roller chain.
Zobacz również
Chain couplings
10,00złChain couplings consist of two chain wheels connected by a two-row roller chain.Conical gear wheels
10,00złThe wheels are made of C45 steel and are available in modules 1-5 with gear ratios from 1 to 5: 1:1 - 1:4.Elastomer couplings
10,00złThe GIFLEX elastomer coupling from Chiaravalli consists of two hubs and an elastomer insert which splits hubs.Expansion clamping bushings
10,00złExpansion clamping bushings (self-centring), from RCK company, are used for rigid connection of rotating elements to the shaft.Bearing sprockets
10,00złSprockets with INA KRR-AH02-C5 bearings or economic bearings with 8x3 to 1 ¼" pitch are used to tension gala chains.Chiaravalli planetary gearboxes
10,00złPlanetary gearboxes are toothed gears, which, due to their design (central circulation wheel and satellites) are characterized by very high ...Electric actuators
10,00złElectric actuators are composed of a drive unit and a gearbox converting the rotary motion into a linear motion of ...