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Lifting jacks with trapezoidal lead screw

Home > Products > Transmission of motion, regulation of speed and position, lifting, displacement and alignment > Lifting jacks with trapezoidal lead screw > MAR40
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MAR40

Screw jacks
  • Bevel gearboxes and flanged bevel gearboxes for indicators
    • Gearboxes - General information
    • 66/4UC
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    • 66/8
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    • Gear reducers & Screw jacks - General information
    • RD26
    • RD26 FL-OP2/OP3RD26 FL-OP2/OP3/EP3
    • RD40
    • RD40 FL-OP3/EP3
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    • RD50 FL-OP3/EP3//OP7/EP7
    • Planetary gearreducers - General information
    • RDE40
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    • RDE40-FLOP_
  • Lifting jacks with trapezoidal lead screw
    • Gear reducers & Screw jacks - General information
    • MAR40
    • MAR40G
    • MAR50
    • MAR50G
  • Connection shafts and universal joints
    • Shafts - General information
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    • BT

MAR40

Screw jacks


• The FIAMA series of screw jacks is a modular mechanical system, for a complete and versatile solution, which transforms rotary 
   movements into linear «push/pull» movements.
• Trapezoidal screw in stainless steel, TPN Ø14 thread - 4mm pitch
• Case in anodized aluminium, shafts and gears treated with PRONOX wear-resistant surface hardening
• Trapezoidal screw standard stroke lenghts in mm: 100 - 200 - 300 - 400 - 700 - 1000
• Maintenance-free: lubricated with long-life Klüber grease
• Single lifting jack or combination of multiple units
• Combination with joints, shafts, gearboxes
• Semi-automatic systems with digital or programmable inidcators
• Automatic systems with servomotors 

Available on request:
• Supplied complete with fixing flange and extension shaft for display with „OP3“ digital indicator or „EP3“ programmable indicator 
  (see dimensions MAR40 FL-OP3)
• Stainless steel rigid protection with stainless steel spiral spring up to 650mm stroke
• In case of continuous use, please contact our Technical Dept. In such applications, a grease fitting will be installed to allow 
  periodic addition of lubricant with a frequency based on the work conditions


Photogallery

 

APPLICATION EXAMPLES























 

MAR40   

1. Trapezoidal screw Ø14 x 4
2. Nr. 3 M4 fixing screws
3. Stroke (mm)

 

MAR40 FL-OP3/EP3 
complete with fixing flange and extension shaft for display with „OP3“ digital or „EP3“ programmable indicator
1. Trapezoidal screw  Ø14 x 4
2. Nr. 3 M4 fixing screws
3. Stroke (mm)

 

MAR40-PROT 
with rigid protection and spiral spring 

 
1. Trapezoidal screw protection in aluminium & stainless steel spiral spring
2. Nr. 3 M4 fixing screws
3. Stroke (mm)

 

MAR40-PROT FL-OP3/EP3 
complete with fixing flange and extension shaft for display with „OP3“ digital or „EP3“ programmable indicator

 
1. Trapezoidal screw protection in aluminium & stainless steel spiral spring
2. Nr. 3 M4 fixing screws
3. Stroke (mm)



INSTALLATION
Installation must not create radial/lateral loads, which are the main cause of failure, on the threaded bar. The plane to which the screw jack is fixed and the threaded bar must be orthogonal and the load and the bar must be coaxial avoiding eccentricity. When applying multiple jacks (connected also by transmissions) the terminals must be perfectly aligned so that the load is uniformly distributed; in this case it is recommendable to use couplings to compensate misalignments. 
SIZING VERIFICATION
• Load (N) = the force which is applied to the threaded bar of the screw jack (10 N ≅ 1 kg)
• Linear speed (mm/min) = the desired linear speed of the load; it is recommendable to limit the input rotary speed to max 1500 rpm 
• Stroke (mm) = it is the linear distance that the load must be moved, generally it coincides with the total length of the threaded bar 
• Protective cover (optional) = necessary to protect the bar in case of contamination, dust, foreign objects and/or oscillating installation and movements 
• Torque (Nm) = torque required for the handling of the load

 

RADIAL AND AXIAL LOADS    
 The loads acting on the shafts can be of two types: radial ‘FR’ (radial force) and axial ‘FA’ (axial force), referred to the axis of the shaft; when ordering specify whether the axial load is pull or push type. 
FR - force / radial load acting in perpendicular direction to the shaft / axis
FA - force / axial load acting of the shaft / axis 
 PUSH  PULL
   
Carter material black anodized aluminium
Carter weight 0,5 kg
FA axial load push/pull 700 N (10 N ≅ 1 kg)
FR radial load 50 N (10 N ≅ 1 kg)
Gears material steel with surface treatment
Grease lubrication Saneg LX EP 2
Lenght of life 10.000 hours
Max gear-play tolerance 0,75° ÷ 1.5°
Max rotation input speed (1/min) 1500 rpm
Rigid protection material AISI 303: stainless steel
Screw dimension TPN Ø14 - pas 4 mm
Screw load not allowed
Screw rotation direction DX / clockwise
Screw weigth/m 0,9 kg
Shaft material steel with surface treatment
Spiral spring material AISI 301: stainless steel
Spring material AISI 304: stainless steel
Working temperature -20 +80°

Control handwheel with folding handle, thermoplastic material, steel bush.
➜ for more complete information, see V.R

 

Crank handle with folding handle in thermoplastic material, steel bush.
➜ for more complete information, see V.M

 

Support units (with square flange) with o.ring, and ball-bearings.
• Available shafts Ø6, Ø8, Ø10, Ø14, Ø20.
➜ for more complete information, see Supports

Flanged supports with extension shaft for coupling with position indicators.
➜ for more complete information, see Flanged supports

The «GC» and «GCC» cardan joints used for the transmission of torque and movement of non-aligned elements.
Main features: universal application, high reliability, maintenance free, extremely precise and ease-of-use.  
• Case entirely machined from solid, in stainless steel AISI303.
• Suitable for intermittent (UI) and continuous movements (UC).
• Maximum working angle 45 °.

➜ for more complete information, see GC and GCC

• The telescopic shafts are  ideal to connect two elements with a constant or variable center to center distance.
• Suitable for adjustments and for continuous use.
• Torque from 5 Nm to 10 Nm.

➜ for more complete information, see ATE

• The telescopic shafts are  ideal to connect two elements with a constant or variable center to center distance.
• Suitable for adjustments and for continuous use.
• Torque from 25 Nm to 50 Nm.

➜ for more complete information, see ATS

The AR series of rigid shafts is used to directly connect parts which are perfectly aligned without any offset.
The main advantages are universal applicability and high reliability.
• Suitable for use in manual and motorized motion transfer.
• Simple and quick installation without additional supports.

➜ for more complete information, see AR

• 4 digits counter (standard red digit indicates decimals; on request 2 red digits for hundredths or 4 black digits for mm). Reading until  9999.Digit height 5 mm
• Standard shaft bore: ø14H7; other bores, smaller than 14 with reducing bush.
➜ for more complete information, see OP3

Angular gearbox 66/4 with flange MØ14x68 FL-OP3/EP3, designed for connection with the position indicator. It ensures precise adjustments and accurate monitoring of the position, enhancing stability and reading accuracy. The flange, made of black anodized aluminum, perfectly matches the gearbox case, both featuring the same elegant and durable finish.
➜ for more complete information, see 66/4

The EP3 electronic indicator allows monitoring of adjustments to eliminate errors and a precise reading of linear or angular displacements. 
• 100% interchangeable with mechinal indicator OP3.
• Powered by a long-life battery, easy replacement from the front. 
• Hollow shaft made of stainless steel; shock, vibration and dirt resistant plastic case.
➜ for more complete information, see EP3

● Drive and position control integrated into a single device.
● Ultracompact design for simple installation; ø14mm output shaft with 5mm flat key.
● Communication protocols: Profinet, Ethernet/IP, Powerlink, EtherCAT.

➜ for more complete information, see SERVO.ALL

The Servo-OP is an electric rotary actuator which, in combination with the optional OP3 indicator, allows position control with two buttons.
• Compact case made of anodized aluminum
• Hollow shaft output

➜ for more complete information, see SERVO.OP

Photogallery

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LEGEND FOR PERFORMANCE TABLES

Tab. 1

=

moving loads as to input torque 

Tab. 2

=

moving loads as to trapeziodal screw (with use of guides)

Tab. 3

=

screw travel speed according to revolution nr.

i

=

reduction ratio [/]

T

= 

torque [Nm]

C

=

moving load [kg] 

s

=

stroke [mm]

ω

=

rotation speed [rpm]

v

=

travel speed [mm/s]


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Via G. Di Vittorio 5,A San Pancrazio - PARMA

Tel. : +39 0521.672341

VAT no. 02046950347

REA 206723 206723

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