Screw jacks
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HSE range dimension plans Type 1 Standard With added-on limit switches Sm/Si Anti-turn device Vm/Vi with added-on limit switches With short safety nut SFM-O With long safety nut SFM-E / SFM-D (BGV C1 or VBG 14) Swivelling configuration Swivelling configuration with added-on limit switches Type 2 Standard With short safety nut LFM-K With long safety nut LFM-E (BGV C1 or VBG 14) In HLA configuration

Screw jacks 3.7 HSE range dimension plans 3.7.1 Type 1 3.7.1.1 Standard Head type I Lift Lift configurations: Short cover High cover Guide ring Protection tube Protection tube with guide ring V Anti-turn device * Oil gauge dimension plan see chapter 3.7.2 (HSE type 2)

Screw jacks Size Screw A1 A2 A3 B C D E F G ØH Ø J k6 K1 K2 L L1 M N O P Q R S1 S2 S3 Ø T f7 Ø T5 ØU ØV ØW Z1 Z2 Z3 Z4 Z5 Size 32 will replace the existing size 31.

Screw jacks 3.7 HSE range dimension plans 3.7.1.2 With added-on limit switches Sm/Si Size 3.7.1.3 Anti-turn device Vm/Vi with added-on limit switches Size 3.7.1.4 With short safety nut SFM-O The short safety nut takes up the axial strain if the main nut breaks. This considerably increases the operating safety of the drive elements. The safety nut can also be used to precisely check for wear on the main nut, as the clearance between the two nuts changes according to the amount of wear. In the case of worm gear screw jacks with short safety nut, the direction of main stress (tensile and...

Screw jacks 3.7 HSE range dimension plans HSE type 1, compression force Size HSE type 1, tensile force Size As new. If "T = 0", supporting and safety nut must be repaired. 3.7.1.5 With long safety nut SFM-E / SFM-D (BGV C1 or VBG 14) Worm gear screw jacks used on theatre stages (BGV-C1, former VBG 70), lifting platforms (VBG 14) or lifting systems that might affect personal safety are designed according to current regulations, and include such items as anti-drop systems (self-locking screws and/or mechanical safety brakes as part of the drive system). The function of the synchronizing...

Screw jacks 3.7 HSE range dimension plans 3.7.1.6 Swivelling configuration In order to allow worm gear screw jacks to carry out swivelling and tipping movements, the drive elements must be secured at two points and permitted to move. This can be done using head IV on both screw ends or an articulated head. 3.7.1.7 Swivelling configuration with added-on limit switches

Screw jacks Application example HSE high performance worm gear screw jack, type 1, special configuration for an elevation movement from 0 °C to 90 °C of an 11,1 m antenna.

Screw jacks 3.7 HSE range dimension plans 3.7.2 Type 2 3.7.2.1 Standard Head type I Possible configurations: K Short cover H High cover Missing dimensions - see type 1

Screw jacks 3.7 HSE range dimension plans Size 3.7.2.2 With short safety nut LFM-K The short safety nut takes up the axial strain if the main nut breaks. This considerably increases the operating safety of the drive elements. The safety nut can also be used to precisely check for wear on the main nut, as the clearance between the two nuts changes according to the amount of wear. In the case of worm gear screw jacks with short safety nut, the direction of main stress (tensile and compression force) and the mounting position should be taken into account, as only a correctly fitted safety nut...

Screw jacks 3.7 HSE range dimension plans 3.7.2.3 With long safety nut LFM-E (BGV C1 or VBG 14) Worm gear screw jacks used on theatre stages (BGV C1, former VBG 70), lifting platforms (VBG 14) or lifting systems that might affect personal safety are designed according to current regulations, and include such items as anti-drop systems (self-locking screws and/or mechanical safety brakes as part of the drive system). The function of the synchronizing device is guaranteed, if required, by additional components. HSE type 2, compression and tensile force 140 200.1 Fig. without limit switch As...