Linear Modules  Manufacturers, Traders, Suppliers

TÜNKERS is a German family-owned company that originated in the field of mechanical engineering and has developed into a global player for automation technology with a great deal of commitment. Since we invent, design, produce and distribute all these products ourselves, we are also one hundred percent behind them. In contrast to a pure dealer company, we at TÜNKERS attach great importance to establishing long-term and successful partnerships with our customers. True to our motto "Inventiveness as standard", we therefore also proactively and together with our customers constantly develop new, innovative solutions that convince through their efficiency and reliability.

Dunkermotoren is a customer-oriented, innovative, quality- and environmentally conscious company. The success of our company predominantly rests on our employees. Our strength is the realisation of complete drive solutions. Based on our sophisticated modular system and the extensive product range of stadardised components, we are in the position to configure and manufacture customised solutions at short notice.
You are looking for the perfect drive system to solve your drive tasks. Use the offer of a leading manufacturer of electrical drive technology up to an output power from 1 up to 5000 Watt. Dunkermotoren engineers and manufactures system solutions based on:
» brushless DC servo motors/ brush-type DC Motors
» integrated power- and logic controllers
» planetary- and worm gearboxes
» linear direct drives
» encoders and brakes
Enjoy the benefits of a global partner with different production- and logistic locations in Europe, China and USA.

1. High Motion Precision & RepeatabilityPrecision is the core advantage of linear modules, ensuring accurate positioning and stable motion:Positioning Accuracy: Typically ranges from ±0.01 mm to ±0.1 mm (varies by type). High-precision models (e.g., those with ground ball screws or linear motors) can achieve positioning accuracy of ±0.005 mm or even higher, meeting demands for micro-assembly, semiconductor processing, and optical alignment.Repeatability: Refers to the consistency of returning to a fixed position, usually between ±0.001 mm and ±0.01 mm. This feature guarantees stable product quality in high-volume automated production (e.g., electronic component soldering, precision dispensing).Motion Smoothness: Equipped with high-precision linear guides (e.g., ball guides, roller guides) and optimized transmission structures, linear modules minimize friction and vibration during motion, avoiding jitter that could affect processing accuracy.2. Diverse Transmission Mechanisms for Flexible ApplicationLinear modules adopt different transmission methods to adapt to varying load, speed, and precision requirements. The three most common types are:Transmission TypeCore ComponentKey AdvantagesTypical ApplicationsBall Screw DriveHigh-precision ball screw + nutHigh efficiency (90%-95%), low backlash, strong load capacity, and stable low-speed motionPrecision machining tools, 3D printers, precision measuring equipmentBelt DriveTiming belt (synchronous belt) + pulleyHigh speed (up to 5 m/s), low noise, long stroke (easy to extend), and low costConveyor systems, packaging machinery, laser cutting (long-stroke scenarios)Linear Motor DriveDirect-drive linear motor (no intermediate transmission)Zero backlash, ultra-high speed (up to 10 m/s), ultra-high acceleration, and maintenance-freeSemiconductor wafer handling, high-speed sorting machines, precision laser processing 3. Excellent Load-Bearing Capacity & RigidityLinear modules are designed to withstand both axial (motion direction) and radial (perpendicular to motion direction) loads, ensuring stability under working conditions:Axial Load Capacity: Ranges from a few kilograms (miniature modules for small electronics) to several tons (heavy-duty modules for industrial machinery). For example, heavy-duty ball screw modules can bear axial loads of over 50 kN, suitable for lifting or pressing tasks.Structural Rigidity: The module base and sliding platform are usually made of high-strength aluminum alloy (anodized for corrosion resistance) or steel (for heavy loads). Reinforced structures (e.g., ribbed bases) reduce deformation under load, avoiding precision loss caused by structural bending.Anti-Vibration Performance: High rigidity also enhances resistance to external vibration, making the module stable in harsh industrial environments (e.g., near stamping machines or CNC equipment).4. High-Speed & High-Acceleration CapabilitiesTo improve production efficiency, modern linear modules prioritize speed and acceleration performance:Max Speed: Varies by transmission type—belt-driven modules can reach 3-5 m/s, linear motor modules up to 10 m/s, while ball screw modules (focused on precision) typically range from 0.5-2 m/s.Acceleration: Linear motor modules excel here, with acceleration up to 50 m/s² or more, enabling rapid start-stop and short cycle times (critical for high-speed sorting, pick-and-place robots).Speed Stability: Advanced control algorithms (matching servo drives) ensure constant speed during motion, avoiding speed fluctuations that affect processing quality (e.g., uniform coating, continuous laser engraving).5. Modular Design & Easy IntegrationLinear modules are designed for versatility and ease of use in automated systems:Standardized Sizes: Most manufacturers offer modules in standard lengths, widths, and load ratings (e.g., 100mm-3000mm strokes), allowing direct selection without custom design.Multi-Axis Combination: Multiple linear modules can be assembled into X, XY, XYZ, or gantry systems (e.g., XY modules for planar motion, XYZ modules for 3D positioning) to meet complex motion needs.Plug-and-Play Compatibility: Equipped with standard mounting interfaces (e.g., T-slots, threaded holes) and compatible with mainstream servo motors (e.g., Mitsubishi, Siemens) and controllers. This reduces integration time and simplifies system debugging.6. Low Maintenance & Long Service LifeIndustrial equipment requires minimal downtime, and linear modules are engineered for durability:Sealing & Protection: Most modules feature dust-proof and waterproof designs (e.g., rubber scrapers, bellows, or IP54/IP65 protection ratings), preventing dust, coolant, or debris from entering the transmission system and extending component life.Lubrication Optimization: Pre-filled with long-life lubricants (e.g., lithium-based grease) and equipped with oil injection ports for easy maintenance. Ball screw modules, for example, only need re-lubrication every 10,000-20,000 operating hours.Wear-Resistant Components: Linear guides and ball screws use high-hardness materials (e.g., SUJ2 bearing steel) with surface treatments (e.g., chrome plating, nitriding), ensuring a service life of 10,000+ operating hours under normal use.7. Wide Adaptability to Environmental ConditionsLinear modules can operate reliably in diverse industrial environments, expanding their application range:Temperature Resistance: Standard modules work in -10°C to 60°C; high-temperature models (with heat-resistant lubricants and materials) can withstand up to 150°C (for automotive engine testing or high-temperature processing).Corrosion Resistance: Modules with stainless steel components (e.g., screws, guides) and anti-corrosion coatings (e.g., passivation, PTFE coating) are suitable for humid, acidic, or alkaline environments (e.g., food processing, chemical packaging).Low-Noise Operation: Belt-driven modules use tooth-profile optimized timing belts, and ball screw modules adopt low-noise nuts—typical noise levels are below 65 dB, meeting requirements for quiet workshops (e.g., electronic product assembly lines).8. Intelligent Motion Control SupportWith the development of Industry 4.0, linear modules integrate with intelligent control technologies:Real-Time Monitoring: Some high-end modules are equipped with sensors (e.g., position encoders, temperature sensors, load cells) to monitor motion status, temperature, and load in real time. Data is transmitted to the controller for predictive maintenance (avoiding unexpected failures).Compatibility with Automation Protocols: Supports mainstream industrial communication protocols (e.g., EtherCAT, PROFINET, Modbus), enabling seamless connection to PLCs, industrial PCs, or MES (Manufacturing Execution Systems) for centralized control and data management.Error Compensation: Advanced controllers can automatically compensate for errors caused by temperature drift (e.g., thermal expansion of screws) or mechanical backlash, further improving long-term motion accuracy.

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