Linear units with spindle drive
Screw driven linear units for simple to even highly dynamic movement applications
Linear actuators with screw drives are the preferred choice when comparably (in comparison to a linear actuator with a timing belt drive) high axial shearing forces and/or the highest levels of accuracy are required.
The carriage is positioned either using a slide guide or a roller guide, depending on the range.
RK linear actuators can also be combined to form multi-axis systems. Standard accessories are available for this purpose. We are happy to help you with the planning and design of a customised system solution.
The right linear unit, quickly and easily
Use our online product finder and compare linear units with each other, receive catalogue and CAD data or request the desired products directly.
You will find the product finder for linear technology here:
Online product finder
RK LightUnit (single tube linear actuator)
The 'light' linear unit for simple manual adjustments.
| Sizes | 30 | Mx max. | 2,5 Nm | |
| Max. stroke length | 920 mm | My max. | 5,5 Nm | |
| Fx max. | 300 N | Mz max. | 5,5 Nm | |
| Fy max. | 550 N | Spindle | • right or lefthand thread | |
| Fz max. | 1210 N | • right and lefthand thread | ||
| • sliding guide with positioning function |
E (single tube linear actuator)
Versatile all-rounders with an unbeatable price-performance ratio.
| Sizes | 18, 30, 40, 50, 60, 80 | Mx max. | 1,5-70 Nm | |
| Max. stroke length | 890-2740 mm | My max. | 4-170 Nm | |
| Fx max. | 400-4500 N | Mz max. | 4-170 Nm | |
| Fy max. | 90-5500 N | Spindle | • right or lefthand thread | |
| Fz max. | 60-5650 N | • right and lefthand thread | ||
| • split spindle |
E-II stainless (single tube linear actuator)
The E-II stainless steel is 100% corrosion-resistant and, compared to standard units, it has an upgraded temperature range of -30 to +80°C or -30 to +150 °C
| Sizes | 30, 40 | Mx max. | 6-14 Nm | |
| Max. stroke length | 1283-2769 mm | My max. | 15-40 Nm | |
| Fx max. | 800-1000 N | Mz max. | 15-40 Nm | |
| Fy max. | 500-1200 N | Spindle | • right or lefthand thread | |
| Fz max. | 500-1900 N | • right and lefthand thread | ||
| Find out more... |
EP(X) tubular linear unit (twin tube linear actuator)
The robust twin tube linear unit compensates for high bending moments during manual and motor-driven adjustments.
| Sizes | 18, 30, 40, 50, 60, 80 | Mx max. | 20-650 Nm | |
| Max. stroke length | 320-2610 mm | My max. | 30-780 Nm | |
| Fx max. | 400-4500 N | Mz max. | 35-1100 Nm | |
| Fy max. | 200-14000 N | Spindle | • right or lefthand thread | |
| Fz max. | 100-9100 N | • right and lefthand thread | ||
| • split spindle |
EP(X)-II tubular linear unit (twin tube linear actuator)
The latest generation of EP(X)-II twin tube units – compensates for high bending moments during hand and motor-driven adjustments.
| Sizes | 30, 40, 50 | Mx max. | 60-240 Nm | |
| Max. stroke length | 320-2820 mm | My max. | 60-345 Nm | |
| Fx max. | 800-1700 N | Mz max. | 75-510 Nm | |
| Fy max. | 1000-7700 N | Spindle | • right or lefthand thread | |
| Fz max. | 550-3300 N | • right and lefthand thread | ||
| • split spindle | ||||
| • Protect: with bellows and protection class IP 40 | ||||
| Find out more... | • spindle clamping (option) |
EPX-II KG tubular linear unit (twin tube linear actuator)
EPX-II KG linear unit with precise ball screw drive and guide shafts.
| Sizes | 30, 40 | Mx max. | 70-160 Nm | |
| Max. stroke length | 1270-2250 mm | My max. | 85-250 Nm | |
| Fx max. | 1000-1200 N | Mz max. | 99-280 Nm | |
| Fy max. | 1100-2400 N | Spindle | • right or lefthand thread | |
| Fz max. | 1100-2400 N |
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| • Protect: with bellows and protection class IP 40 | ||||
| Find out more... |
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PLM (profile linear actuator)
The compact range for positioning small loads.
| Sizes | 20, 40x20 | Mx max. | 3-4 Nm | |
| Max. stroke length. | 855 mm | My max. | 10-14 Nm | |
| Fx max. | 125 N | Mz max. | 10-14 Nm | |
| Fy max. | 160-200 N | Spindle | • right or lefthand thread | |
| Fz max. | 180-220 N | • right and lefthand thread | ||
| • split spindle | ||||
| • without drive (guide) |
RK Compact (profile linear actuator)
Slimline short-stroke linear actuator for manual adjustment with excellent price-performance ratio.
| Sizes | 30, 50, 80, 120 | Mx max. | 3-32 Nm | |
| Max. stroke length. | 130-400 mm | My max. | 3-59Nm | |
| Fx max. | 50-215 N | Mz max. | 3-59 Nm | |
| Fy max. | 160-1150 N | Spindle | • right or lefthand thread | |
| Fz max. | 160-1150 N | • right and lefthand thread | ||
| • without drive (guide) |
quad® (profile linear actuator)
Compact and versatile linear actuator for manual and motor-driven adjustment of medium loads.
| Sizes | 30,40, 50, 60, 80 | Mx max. | 6-80 Nm | |
| Max. stroke length. | 1479-2894 mm | My max. | 11-140 Nm | |
| Fx max. | 800-2500 N | Mz max. | 8-85 Nm | |
| Fy max. | 600-6000 N | Spindle | • right or lefthand thread | |
| Fz max. | 600-6000 N | • right and lefthand thread | ||
| • split spindle | ||||
| • without drive (guide) |
PLS (profile linear actuator)
Motor-driven or manual adjustment of medium to heavy loads – no problem for the PLS.
| Sizes | 30,40, 50, 60, 80 | Mx max. | 14-124 Nm | |
| Max. stroke length. | 830-2868 mm | My max. | 20-168 Nm | |
| Fx max. | 340-3050 N | Mz max. | 22-169 Nm | |
| Fy max. | 790-2550 N | Spindle | • right or lefthand thread | |
| Fz max. | 790-2550 N | • right and lefthand thread | ||
| • without drive (guide) |
RK DuoLine S (profile linear actuator)
Optional variants available for delivery with locking system for vertical actuators and as clean room version.
| Sizes | 50, 60, 80, 120, 160 | Mx max. | 45-500 Nm | |
| Max. stroke length. | 2268-4440 mm | My max. | 380-1200 Nm | |
| Fx max. | 1400-8000 N | Mz max. | 350-1150 Nm | |
| Fy max. | 930-5100 N | Spindle | • righthand thread | |
| Fz max. | 1100-8900 N | • right and lefthand thread | ||
| • without drive (guide) | ||||
| Optional vers.: | • locking system RK Safelock | |||
Always the right contact
Your contact at RK ROSE+KRIEGER:
Olaf Durstewitz
Head of Product Consultancy