Premium Miniature Hollow Shaft Electric Cylinder – High-Precision & Compact Linear Actuator
Space-saving hollow shaft design with micron-level precision, engineered specifically for advanced automation, medical devices, and semiconductor manufacturing.
Why Choose Our Miniature Hollow Shaft Electric Cylinder?
Innovative Hollow Shaft Structure: The center aperture allows cables, laser beams, air pipes, or optical fibers to pass through smoothly, drastically simplifying your system layout and saving critical installation space.
Ultra-Compact & Miniature Size: Engineered specifically for extremely tight spaces, offering an exceptionally high power density without sacrificing heavy-duty performance.
Micron-Level High Precision: Utilizes premium ground ball screws and high-resolution encoders to achieve a repeatability up to +/-0.01 mm.
Exceptional Durability & Low Noise: Operates quietly at less than 50 dB. Optimized premium lubrication and a completely sealed design ensure a long-lasting operational life and minimized downtime in continuous B2B production lines.
Built with World-Class Components for Industrial-Grade Reliability
We never compromise on internal material quality. The longevity of our miniature electric cylinders is guaranteed by top-tier global component sourcing:
High-Precision Ball Screw: Utilizes C5 or C7 grade hardened ball screws, delivering a mechanical efficiency of over 90% and ensuring backlash-free linear motion.
Premium Japan/Germany Brand Bearings: Equipped with NSK or angular contact bearings to handle high axial loads and ensure smooth, jitter-free rotation at the hollow shaft.
Aviation-Grade Aluminum Housing: Precision CNC-machined from high-strength anodized aluminum, reducing overall weight while offering superior rigidity and anti-corrosion protection.
Flexible Motor Integration: Universal flange design compatible with global motor brands including Panasonic, Delta, Mitsubishi, Schneider, and more.
Technical Specifications
|
Parameter |
Standard Specification |
Notes / Customization Available |
|
Hollow Shaft Inside Diameter |
4 mm / 6 mm / 8 mm |
Accommodates lasers, wires, or pneumatic lines |
|
Stroke Length |
10 mm to 150 mm |
Can be tailor-made for specific stroke needs |
|
Max Payload - Horizontal |
Up to 15 kg |
Dependent on speed and screw pitch |
|
Max Payload - Vertical |
Up to 8 kg |
Self-locking options available |
|
Repeatability |
+/-0.01 mm to +/-0.02 mm |
High-precision grinding grade |
|
Max Speed |
100 mm/s |
Adjustable based on motor and voltage |
|
Compatible Motor Type |
Servo Motor / Stepper Motor |
Can supply with or without motor drivers |
|
Rated Voltage |
24V DC / 48V DC |
Safe low-voltage operation |
|
Noise Level |
Under 50 dB |
Ultra-quiet operation for lab environments |
|
Protection Class |
IP50 / IP65 |
Optional IP rating for harsh environments |
Target Applications
Our miniature hollow shaft electric cylinders are widely adopted by global system integrators and OEMs in the following fields:
Semiconductor & Electronics Assembly
Precision pick-and-place mechanisms, wafer handling, and advanced testing equipment.
Medical & Laboratory Automation
Precision liquid handling, multi-channel pipetting systems, and medical imaging adjustments.
Optics & Laser Systems
Passing laser beams or fiber optics through the hollow center for advanced alignment without complex external routing.
Robotic End-Effectors
Lightweight and compact Z-axis actuation for multi-axis robotic arms and adaptive grippers.
Quality Control: 0% Defect Tolerance Before Export
To ensure zero failure rates at our clients' overseas factories, every single batch undergoes rigorous quality assurance protocols:
Laser Interferometer Calibration
Every cylinder is verified by laser systems to guarantee pitch accuracy and axial repeatability.
24-Hour Continuous Run-In Test
Simulated dynamic load testing for 24 hours to ensure stable grease distribution and stable temperature running profiles.
Hollow Shaft Concentricity Test
Ensuring the inner bore has zero friction or alignment bias during high-speed rotation.
Live Factory Video Inspection
We welcome WhatsApp or Zoom live video inspections before your order leaves our facility.
Industrial-Grade Packaging: Zero Damage During Transit
Precision actuators require maximum protection. We implement standard export-compliant packaging for every international shipment:
VCI Anti-Rust Vacuum Bag: Every electric cylinder is sealed in a Volatile Corrosion Inhibitor (VCI) bag to prevent moisture and rust during long ocean voyages.
Custom EPE Foam Slots: High-density pearl cotton molded slots fix the cylinder and motor flange firmly in place, absorbing 99% of transit vibrations.
Reinforced Plywood Case: Heavy orders are packed in rugged, ISPM-15 compliant, fumigation-free plywood boxes, eliminating any customs clearance delays.
Long-Term Warranty & Rapid Spare Parts Support
18-Month Global Warranty: We provide an extended 18-month warranty against manufacturing defects starting from the date of shipment.
5-Year Guaranteed Spare Parts Availability: Critical components like customized couplings, linear guides, and internal seal kits are kept in stock for at least 5 years, ensuring your production lines never experience unexpected prolonged downtime.
Digital Traceability: Every unit is laser-engraved with a unique serial number, allowing our technical support team to immediately track its original manufacturing blueprint.
FAQ
Q: Can the hollow shaft diameter be customized if my cable bundle is too thick?
A: Yes. While our standard inner diameters are 4 mm, 6 mm, and 8 mm, our R&D team can widen the hollow bore or modify the shaft configuration based on your specific structural constraints.
Q: Does this miniature cylinder require regular lubrication?
A: Our cylinders are pre-lubricated with high-grade synthetic grease before leaving the factory. For standard continuous operations, we recommend a simple grease replenishment every 3 to 6 months (or every 5,000 km of travel) via the integrated grease port.
Q: Is it compatible with third-party servo/stepper motors?
A: Absolutely. We provide customized motor adapter plates and flexible couplings based on your specific motor's blueprint (shaft diameter, pilot diameter, and bolt circle).
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