alpha Linear Systems
For many years, we have been recognized specialists in linear drive systems with pinions and racks. Our particular expertise lies in configuring servo motors, gearboxes, pinions, and racks to create impressive system solutions. To meet your individual requirements for linear drives in terms of smooth running, positioning accuracy, and feed force, we offer solutions that are optimally tailored to your application. Depending on your requirements, e.g., for the racks, we use different manufacturing processes that can be flexibly adapted. Our portfolio includes both inductive-hardened and case-hardened racks with perfectly matched bores and lengths. Innovative mounting concepts, such as the R-flange on the gearbox and INIRA® for precise and efficient rack mounting, round off our systems.
Flexibility through variable rack lengths
With our inductive-hardened racks in the Value and Advanced segments, you can choose between 1 m and 2 m lengths depending on your application – flexibly combinable as 2 × 1 m or 1 × 2 m.
Pinion-rack systems for the highest demands
WITTENSTEIN alpha pinion-rack systems have proven themselves in a wide range of demanding applications – from machine tools such as portal milling machines and laser cutting systems to automation solutions, e.g. for 7th axes.
Our comprehensive portfolio of high-precision gearboxes, pinions, racks, and a wide range of accessories for relubrication offers the right system solution for every task.
Your advantages – maximum performance across the board
- Maximum precision
- Highest dynamics
- Optimal rigidity
- Long service life
Tailored to different requirements
The Premium Linear System sets standards for applications with high to very high demands on smooth running, positioning accuracy, and feed force. In addition to the Premium Linear Systems, the Advanced Linear Systems and Value Linear Systems are available for other requirements in terms of feed force, positioning accuracy, and smooth running.
alpha Value Line
- Max. feed force
- 1.89 – 8 kN
- Max. feed velocity
- 160 – 400 m/min
- Positioning accuracy (single drive)
- ≥ 140 µm
Rack and pinion system in the Value segment with R-flange
alpha Advanced Line
- Max. feed force
- 1.37 – 21 kN
- Max. feed velocity
- 45 – 570 m/min
- Positioning accuracy (single drive)
- ≥ 30 µm
Perfectly matched linear systems with planetary, right-angle, worm gearboxes or servo actuators
alpha Premium Line
- Max. feed force
- 5.45 – 112 kN
- Max. feed velocity
- 91 – 333 m/min
- Positioning accuracy (single drive)
- ≥ 30 µm
The perfect solution for linear feed drives for machine tools and highly dynamic automation
- Size / module
- 1,5 mm – 8 mm
- Max. feed force
- 2.3 – 135 kN
- Length
- 167 – 2000 mm
Racks perfectly matched to our systems with lengths from 500 - 2000 mm
- Size / module
- 1,5 mm – 8 mm
- Max. feed force
- Gearbox-dependent
- Designs
- Factory assembly
Pre-assembled pinions for reduced assembly work
alpha Advanced Line
- Filling quantity
- 125 cm³
- Number of outlets
- 1
- Operating voltage
- 24 V
Lubricator for optimum relubrication of open toothing with 125 cm3 filling quantity
alpha Advanced Line
- Filling quantity
- 400 cm³
- Number of outlets
- 1, 2, 3, 4
- Operating voltage
- 24 V
Lubricator for optimum relubrication of open toothing with 400 cm3 filling quantity
- Size / module
- 1,5 mm – 8 mm
- Helix angle direction
- Straight, left-hand, right-hand
- Connection orientation
- Straight, angled
Lubrication pinion and lubricating axes for relubricating the open toothing
- Number of outlets
- 2, 3, 4, 5, 6, 7, 8
- Operating temperature (depending on the lubricant used)
- 10°C - 60°C
- Hose connection
- Straight, 6 mm
Progressive distributor for precise lubricant distribution
- Number of outlets
- 2, 3, 4
- Operating temperature (depending on the lubricant used)
- 10°C - 60°C
- Hose connection
- Straight, 6 mm
Splitter for lubricant distribution
The optimal linear system for every requirement
The Value Linear Systems are adapted to linear applications in the Value Segment with comparatively low requirements in terms of smooth running, positioning accuracy and feed force. Typical fields of application include wood working machinery, plasma cutting systems and automation.
Value Linear Systems
Advanced Linear Systems are optimally suited for applications with mid-level to high requirements for smooth running, positioning accuracy, and feed force.
Typical areas of application include wood, plastic, and composite processing, modern machining centers, and a wide range of automation solutions.
Advanced Linear Systems
The Premium Linear Systems are adapted specifically to applications with extremely high demands in terms of smooth running, positioning accuracy and feed force. They offer drives with an outstanding power density, maximum linear system rigidity and extreme precision both in a single drive and master/slave configuration for maximum design freedom. The option of downsizing also offers savings potential in the drive train.
Premium Linear Systems
The alpha preferred linear system – the best of each segment
Our preferred linear systems are always comprised of the perfect combination of gearbox, pinion, rack and lubrication system. Our preferred linear systems are optimized in terms of the degree of utilization of the individual components as well as the feed force, feed speed and rigidity, and are specially selected for the Value, Advanced and Premium segments. The time-consuming search for the most suitable components for your particular application is now a thing of the past.
INIRA® The revolution in rack assembly
INIRA® combines our existing innovative concepts for the simple, safe and efficient assembly of racks. INIRA® clamping and INIRA® adjusting have already made the assembly of racks much faster, more accurate and more ergonomic. INIRA® pinning is setting new benchmarks in pinning and is further revolutionizing rack assembly.
Revolutionary solutions for mounting of racks
Simply faster and more ergonomic
Previously, enormous effort was required to clamp racks to the machine bed using screw clamps. INIRA® clamping integrates the clamping device in the rack. The rack incorporates a assembly sleeve which is guided over the head of the fastening screw to ensure quick and ergonomic clamping.
Very short assembly times
The time required for assembly has been cut by up to 50%, depending on the application.
Optimized assembly ergonomics
The assembly process is simple and effortless, reducing the physical strain on the assembly team to a minimum.
Extreme ease of assembly
Engineers no longer have to focus on an assembly friendly clamping of the rack. This opens completely new design possibilities.
Simply safer and more precise
In combination with INIRA® clamping, INIRA® adjusting is the ideal solution for perfectly adjusting the transition between two rack segments. The innovativesetting tool can adjust the transition extremely reliably and precisely, accurate to the micrometer.
Maximum assembly precision
Precise aligned transitions ensure highest positioning accuracy of the linear drive system along the hole movement path.
Shortest adjusting times
Significant reduction of assembly and control effort at rack transition.
Simply better and more efficient
The previous method used for pinning racks was immensely time-consuming. Precision bores had to be drilled and the chips generated had to be removed carefully from the component. INIRA® pinning now offers a completely new solution for the chipless pinning of racks, which reduces assembly times considerably.
97.78 % time savings
Simple pinning of the rack in one minute instead of 45 minutes in previous cases.
No drilling and reaming, 100 % fewer chips
Outstandingly safe because no chips are generated during the pinning process. No need for time-consuming cleaning work after assembly.
Exceptionally easy assembly
Assembly work significantly reduced. Easy to handle in any mounting position.
alpha Linear Systems in the application
Welding robot
7th Axis
Plasma cutting system
Wood working machine
Flatbed laser
Portal milling machine
Which product is right for your application?
With our sizing tools, ranging from quick configuration to detailed calculation, you can quickly and reliably find the right product.
WITTENSTEIN alpha Linear System
The INIRA® assembly concept is available in combination with an extensive portfolio of high-performance and precise linear systems.
Download catalog
Contact us
Would you like to learn more about our solutions?
We would be happy to advise you—personally, competently, and tailored to your requirements.