The Primatics PLR350 rotary stage is designed for applications that require greater load capacity, larger working diameters, and highly controlled rotary motion. Its direct-drive brushless motor architecture delivers smooth angular movement without the backlash and wear associated with geared rotary systems.
Built around a large open-center platform, the PLR350 allows for direct pass-through of cables, air lines, and optical paths, making it especially effective for integrated automation systems where internal routing improves reliability and simplifies installation.
Its rigid mechanical construction and high-resolution encoder system support demanding positioning tasks where repeatability and rotational stability are critical. The PLR350 is particularly valuable in applications involving large fixtures, precision inspection, and multi-axis automation assemblies.
Common Applications:
- Semiconductor wafer inspection
- Large-format optical alignment
- Precision laser positioning
- Automated assembly platforms
- Rotary metrology systems
- Research instrumentation
Features
PLR350 Rotary Positioning Stage Features
Direct-Drive Motor Technology
The PLR350 uses a brushless direct-drive motor to eliminate gear backlash, improving motion smoothness and reducing maintenance over the system's lifetime.
Large Through-Hole Design
Its oversized center aperture allows engineers to route utilities directly through the axis of rotation, improving cable management and system cleanliness.
High Load Support
Designed for heavier payloads than smaller rotary stages, the PLR350 is ideal for larger fixtures, tooling, and workpieces that demand stable rotational support.
Excellent Rotational Repeatability
Tight repeatability specifications help maintain alignment and process consistency in automated manufacturing and inspection environments.
Rigid Platform Construction
The structural stiffness of the stage minimizes deflection under load, improving positioning confidence in high-precision applications.
Specifications
Primatics PLR350 Rotary Stage Specifications
- Travel Range: ±60°
- Resolution: 0.43 arc-sec nominal
- Accuracy: ±30 arc-sec
- Repeatability: ±2 arc-sec
- Axial Runout: ±5 μm
- Radial Runout: ±7 μm
- Continuous Torque: 2.0 N-m
- Peak Torque: 7.0 N-m
- Rated Speed: 30°/sec
- Axial Load Capacity: 15 kg
- Radial Load Capacity: 8 kg
- Stage Height: 52 mm
- Table Diameter: 350 mm
- Encoder Type: High-resolution steel tape encoder
- Cleanroom Rating: Class 10,000
The PLR350 combines large-format rotary positioning with high-resolution control, making it an effective solution where heavier payloads and precision motion must coexist.
Integration
PLR350 Rotary Positioning Stage Integration
The PLR350 is often integrated into larger motion systems where rotary positioning is one axis within a broader automation process. Its larger platform size supports tooling, fixtures, and inspection devices that smaller rotary stages cannot accommodate.
Its hollow-core design helps simplify:
- Internal cable routing
- Vacuum and pneumatic line management
- Optical beam alignment
- Rotary fixture integration
- Sensor and encoder cable organization
Industries That Benefit:
- Semiconductor manufacturing
- Photonics and optics
- Medical automation
- Aerospace component inspection
- Industrial metrology
- Precision machining
For OEM builders and automation engineers, the PLR350 offers a scalable rotary motion platform that supports larger assemblies while maintaining the precision expected in high-performance systems.
Q & A
PLR350 Rotary Positioning Stage Q & A
Downloads
Download Primatics PLR350 Rotary Positioning Stages Datasheet
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