LINEAR ACTUATORS Rolaram www.powerjacks.
LINEAR ACTUATORS | Rolaram www.powerjacks.
LINEAR ACTUATORS | Rolaram Contents Linear Actuators (Electro-Mechanical) 1 2 3 4 5 6 7 8 9 Overview of Rolaram® Linear Actuator Range.................................................................4 Working Applications for Rolaram® Actuators.................................................................6 Product Code for Rolaram® Actuators.............................................................................7 Rolaram® Linear Actuator Range.......................................................
LINEAR ACTUATORS | Rolaram 1. Overview of Rolaram® Linear Actuator Range What is a Rolaram® Linear Actuator? Rolaram® is an electro-mechanical linear actuator, which consists of either a Spiracon™ planetary roller screw or a ball screw, driven by an electric motor, through a reduction gearbox. The lead screw converts rotary motion to linear movement. As the screw rotates, the nut extends and retracts the ram, which is attached to the load.
LINEAR ACTUATORS | Rolaram Main features of Rolaram® Actuators • • • • • • • • High efficiency screw mechanism and gearbox High dynamic load capacity and wide speed range Controllable for synchronisation Precise repeatability of positioning Long life and low maintenance and running costs Clean operation and low noise Cost effective package Guided ram option Advantages over other Actuators Rolaram actuators can not only match the load capacity of hydraulic cylinders and exceed the load capacity of conven
LINEAR ACTUATORS | Rolaram 2. Working Applications for Rolaram® Actuators Application Die splitter for opening up 20 tonne die sets, prior to their use in the production of car body panels. Linear Actuation Requirements Dies require to be split evenly, with all corners being moved simultaneously, within 5 microns of each other. Solution 4 identical Rolaram actuators mounted one on each corner of the die splitter.
LINEAR ACTUATORS | Rolaram 3. Product Code for Rolaram® Actuators The product code is of the following form: (1) (1) Product Code An 8 digit code obtained from Technical Charts (refer 2.2.6.) (2) Drive Configuration R - Right Angle P - Parallel H - In-Line (3) Unguided/guided P - Unguided Ram K - Guided Ram (2) (3) (4) (4) Stroke A 4 figure code to represent the required stroke in mm.
LINEAR ACTUATORS | Rolaram 4. Rolaram® Linear Actuator Range There are 8 standard Rolaram models, available in 2 standard drive configurations, each with 10 linear speeds and offering a wide range of load capabilities. The R050, R075, R100 and R125 models are available in a Ball Screw version, for applications where positional accuracy is less important and a more cost effective solution is desired.
LINEAR ACTUATORS | Rolaram Operating Life and Duty The actuator models listed in the Technical Charts are capable of very high operating lives (in excess of 10,000 hours for some high speed models). The ball screw version may have a lower life expectancy than the equivalent roller screw version. Due to the almost limitless number of possible configurations, please consult our Technical Sales Department for an estimate of life for individual applications. Continuous duty applications e.g.
LINEAR ACTUATORS | Rolaram 5. How to Select a Rolaram® Actuator There are 4 simple steps as follows : Step 1 Using the load/speed curves on page 8, select the actuator model which has an adequate dynamic load capacity for the required linear speed. Positional accuracy and life considerations may dictate selection of the roller screw version for models R075, R100 and R125.
LINEAR ACTUATORS | Rolaram 6. Rolaram® Performance Data General Rolaram Performance Summary Load Up to 400 kN (40 Te) Linear Speed Up to 7000 mm/min Stroke Up to 5000 mm Efficiency 80% (typical) Roller Screw Accuracy Operating Temperature Up to within 0.005 mm (5 micron) Ball Screw Up to within 0.
LINEAR ACTUATORS | Rolaram Model B075/R075 Right Angle Configuration ROLLER SCREW BALL SCREW Product Code Linear Speed (mm/ min) Dynamic Load capacity (kN) Frame Size Max Stroke (mm) in Compression Basic Weight (kg) Power (kW) Motor B0750280 280 21.0 0.18 80 2200 22.5 B0750720 720 16.0 0.25 71 2500 22.5 B0750970 970 12.0 0.25 71 2900 22.5 B0751270 1270 9.0 0.25 71 3200 22.5 B0751470 1470 7.8 0.25 71 3500 22.5 B0751650 1650 7.0 0.37 71 4000 22.
LINEAR ACTUATORS | Rolaram Model B100/R100 Right Angle Configuration ROLLER SCREW BALL SCREW Product Code Linear Speed (mm/ min) Dynamic Load capacity (kN) Frame Size Max Stroke (mm) in Compression Basic Weight (kg) Power (kW) Motor B1000280 280 41.5 0.25 80 2400 40.0 B1000350 350 33.0 0.25 80 2700 40.0 B1000970 970 26.0 0.55 80 3000 40.0 B1001280 1280 19.5 0.55 80 3500 40.0 B1001660 1660 15.0 0.55 80 4000 40.0 B1002380 2380 14.4 0.
LINEAR ACTUATORS | Rolaram Model B125/R125 Right Angle Configuration ROLLER SCREW BALL SCREW Product Code Linear Speed (mm/ min) Dynamic Load capacity (kN) Frame Size Max Stroke (mm) in Compression Basic Weight (kg) Power (kW) Motor B1250380 380 65.0 0.55 80 1900 61.0 B1250630 630 54.0 0.75 90 2100 61.0 B1251180 1180 42.5 1.1 90 2300 61.0 B1252030 2030 34.0 1.5 90 2600 61.0 B1252370 2370 29.0 1.5 90 2900 61.0 B1253020 3020 22.8 1.5 90 3200 61.
LINEAR ACTUATORS | Rolaram Model R150 Right Angle Configuration ROLLER SCREW Product Code Linear Speed (mm/ min) Dynamic Load capacity (kN) Power (kW) Motor Frame Size Max Stroke (mm) in Compression R1500440 440 118.0 R1500760 760 92.0 1.1 90 2180 90.0 1.5 100 2300 100.0 R1501160 1160 R1501400 1400 88.6 2.2 100 2300 100.0 73.5 2.2 100 2650 R1501770 100.0 1770 58.2 2.2 100 2800 100.0 R1501910 1910 53.9 2.2 100 3000 100.0 R1503590 3590 39.1 3.
LINEAR ACTUATORS | Rolaram Model R225 Right Angle Configuration ROLLER SCREW Product Code Linear Speed (mm/ min) Dynamic Load capacity (kN) Frame Size Max Stroke (mm) in Compression Basic Weight (kg) Power (kW) Motor R2250340 340 300.0 2.2 132 3000 307.0 R2250580 580 240.0 3.0 132 3300 311.0 R2250880 880 212.5 4.0 112 3500 285.0 R2251180 1180 158.0 4.0 112 3950 285.0 R2251820 1820 141.4 5.5 132 4100 306.0 R2252880 2880 89.3 5.5 132 4800 306.
LINEAR ACTUATORS | Rolaram 7.
LINEAR ACTUATORS | Rolaram Rolaram® - Parallel Motor Configuration - Rear Clevis Mount Rolaram with rear clevis mounting enables the actuator to be configured for double clevis arrangements. Details below are for the B050 Rolaram Actuator only. For all other sizes contact Power Jacks. B050 - Rolaram® Travel A ØD ØB A ØB L ØM K C H S G J ØE R N S Q P F Standard Clevis, Top Plate and Threaded Ends are available on request.
LINEAR ACTUATORS | Rolaram Rolaram® - Right Angled Motor Configuration - Trunnion Mount Motor V ØW U (Brake) AB ØS T (Motor) Y Guided Option P ØB X O ØA ØAE R AF Q 2.2.7.3.1. Roller Screw and Ball Screw Size R/B 050 R/B 075 Frame 71 Frame 80 R/B 100 Frame 80 Frame 90 R/B 125 Frame 90 Frame 100 157.
LINEAR ACTUATORS | Rolaram End Fittings and Mountings Top Plate Clevis End Screwed End VV AC YY EE BB YY XX WW FF ØZ YY DD GG AA ØCC Trunnion Feet/End Cap Foot Trunnion ZZ + Stroke LL + Stroke NN MM KK PP QQ AG SS JJ RR UU KK OO YY HH ØII AD TT + Stroke Size 075 100 125 150 175 225 ZØ (H7) 20 28 35 42 55 70 250 80 AA 23 32 38 47 62 78 90 BB 25 30 35 40 50 70 80 CCØ 105 (145) 130 (175) 170 (210) 220 270 300 330 DD 14 18 22 26 33 33
LINEAR ACTUATORS | Rolaram 8. Rolaram®Accessories and Options Limit Switches Standard Rolaram®Actuator Limit Switch • • • • • Inductive proximity switches Cylindrical design M18 x 1 Standard housing made from brass or stainless steel. DC-voltage Sizes: A = 60 mm, B = 51.5 mm a b Rolaram® Limit Switch Technical Data Parameter Type Data Four-wire PNP/NPN/NO/NC programmable Housing Material Brass housing Nominal Sensing Distance, Sn 5mm Weight (kg) 0.120 Connecting Cable 4 core x 0.
LINEAR ACTUATORS | Rolaram 9. Special Rolaram® Designs and Applications Actuator R150 model, roller screw version, in-line drive. Application Driving reciprocating, double acting paint pumps in the first all-electric paint mix facility in Europe. Linear Actuation Requirements The dynamic load is 17.9 kN in both directions, at a linear speed of 3 metres/minute and a continuous duty cycle of 24 hours/day, 365 days/year. Each pump delivers 40 litres of paint/minute at 12 bar, 12 cycles/minute.
LINEAR ACTUATORS | Rolaram Actuator Spring return actuator, ball screw version, in-line drive. Application Failsafe operation of ventilation dampers. Linear Actuation Requirements The actuator opens and closes the damper and maintains a 3 kN load to ensure that the damper is sealed. The damper must open and close in 2 seconds and operate at 250°C for 1 hour. In the event of power failure, the actuator must failsafe in the closed position. Solution One off ball screw actuator is fitted onto each damper.
PRECISION SCREW JACKS . ELECTRIC LINEAR ACTUATORS . PLANETARY ROLLER SCREWS . SPIRAL BEVEL GEARBOXES . Power Jacks are an industry leader in the manufacture of quality industrial lifting, positioning, material handling and power transmission equipment. Our products are supplied globally to most industry sectors including nuclear, water, oil & gas, chemical, defence, steel, aluminium, automotive and others.
