High-Precision Servo Hollow Shaft Electric Cylinder | Linear Actuator for Automation
Lind-World's Servo Hollow Shaft Electric Cylinder series is engineered for cutting-edge industrial automation applications requiring both multi-axis linear motion and an internal clearance channel. By integrating a hollow-shaft permanent magnet synchronous motor (PMSM) directly with a high-precision ball screw, this actuator eliminates the risk of external cable wrapping or abrasion during continuous rotary or high-speed linear operations.
Compared to traditional hydraulic and pneumatic cylinders, it offers an eco-friendly, energy-efficient, and highly controllable alternative with zero risk of oil leakage. It is the ultimate choice for automated assembly lines, semiconductor tools, lithium-ion battery production, and advanced laser systems looking to minimize maintenance costs and maximize equipment footprint efficiency.
Key Features & Highlights
Innovative Hollow Shaft Design: Features a clear central bore, allowing cables, pneumatic hoses, fiber optics, or laser beams to pass through seamlessly without twisting or tangling during multi-axis movement.
Exceptional Positioning Precision: Driven by advanced servo control systems and premium C5/C7 grade ball screws, achieving a repetitive positioning accuracy of up to +/- 0.01 mm.
Seamless Motor Integration: Universal modular flange design engineered to adapt flawlessly to major global servo motor brands, including Yaskawa, Panasonic, Siemens, Mitsubishi, and Delta.
Industrial-Grade Reliability: 100% factory-tested under full load before shipment. Built with heavy-duty SKF or NSK bearings for a significantly extended service life.
Innovative Structure & Principle
Integrated Through-Bore Architecture: The specialized hollow-shaft motor rotor aligns perfectly with the mechanical axis. This maximizes space utilization and eliminates the rotational inertia caused by external couplings.
Premium Linear Transmission: Built with C5-grade ground ball screws or heavy-duty planetary roller screws, ensuring optimal mechanical efficiency of 90% or higher with near-zero backlash.
High-Rigidity Bearing Layout: Equipped with paired angular contact ball bearings at both ends to withstand simultaneous high axial thrust and radial loads during high-frequency cycles.
Technical Specifications
|
Parameter |
Metric Units |
Imperial Units |
|
Hollow Shaft Inside Diameter |
10 mm - 60 mm (Customizable) |
0.39" - 2.36" |
|
Maximum Rated Thrust |
Up to 50 kN |
Up to 11,240 lbf |
|
Maximum Speed |
Up to 1000 mm/s |
Up to 39.3 in/s |
|
Stroke Length |
50 mm - 1500 mm |
1.96" - 59.0" |
|
Repeatability |
+/- 0.01 mm / +/- 0.02 mm |
+/- 0.0004" / +/- 0.0008" |
|
Screw Type |
Precision Ball Screw / Roller Screw |
C5 / C7 Grade |
|
IP Rating |
IP54 / IP65 (Optional) |
IP54 / IP65 |
|
Working Temperature |
-20 deg C to +60 deg C |
-4 deg F to 140 deg F |
Targeted Applications & Industries
Semiconductor & Electronics Assembly: Rotary pick-and-place indexing tables, silicon wafer handling systems, and high-speed multi-axis component insertion equipment.
Lithium-ion Battery Manufacturing: Precision battery cell winding machines, electrode coating equipment, and automated cell stacking systems.
Industrial Laser Cutting & Welding: Guiding fiber optic laser beams directly through the hollow center to feed 360-degree continuous rotation laser cutting heads.
Medical & Laboratory Automation: High-throughput liquid handling systems, surgical robotic joints, and automated diagnostic testing equipment.
Automotive Testing & Precision Assembly: Precise press-fit quality testing rigs, automated valve control, and multi-axis driving simulation platforms.
Quality Assurance & Factory Traceability
Rigorous Testing Standards: Every Lind-World hollow shaft cylinder undergoes a 24-hour continuous dynamic aging test and full-load thrust calibration on our internal test benches before packaging.
100% Traceable Records: Each product is laser-engraved with a unique tracking QR code linked directly to its individual CNC tolerance logs and test bench performance reports.
Compliance and Safety: Fully compliant with CE and RoHS directives, utilizing premium raw materials to ensure global import standards are met.
Frequently Asked Questions (FAQ)
Q: Can your hollow shaft cylinders be customized to fit my existing servo motor?
A: Yes, absolutely. We design and manufacture custom motor adapter flanges and couplings for all major global servo motor brands (including Yaskawa, Panasonic, Siemens, Mitsubishi, Delta, etc.). When placing an inquiry, simply provide us with your motor's model number or its shaft/flange dimension drawing, and our engineers will provide the matching 3D blueprint.
Q: How do I handle lubrication and maintenance for this hollow shaft actuator?
A: Lind-World's cylinders are designed for minimal maintenance. Most models feature external lubrication ports (grease nipples), allowing you to relubricate the internal ball screw and guide rails without dismantling the equipment. We recommend inspecting and relubricating every 3 to 6 months or after every 1000 km of travel, depending on your operation's duty cycle.
Q: What is the typical lead time for standard versus customized models?
A: For standard models where we hold core components (screws, housings, bearings) in stock, the production lead time is 10 to 15 working days. For highly customized orders (special stroke lengths, unique hollow ID dimensions, or custom stainless steel casings), the lead time generally ranges from 20 to 30 working days.
Q: Do you provide 3D CAD models for design verification before we place an order?
A: Yes. We understand that mechanical engineers need to verify space constraints within their system blueprints. Once we confirm your initial technical specifications, our engineering team will provide free 3D CAD files (available in .STEP, .IGS, or .SolidWorks formats) for you to import directly into your assembly design.
Q: Can this cylinder be used in vertical mounting applications? Is a brake required?
A: Yes, it can be mounted vertically. However, because precision ball screws have very low friction, they are reversible under load. To prevent the cylinder payload from dropping due to gravity during a sudden power outage or emergency stop, we highly recommend selecting a servo motor equipped with an electromagnetic holding brake.
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