Standard Motorized Linear Stage EPSA-G Series (Stepper with Grating)
Special machining process and anodized surface finish unify precision, wear resistance and appearance.; Precision ball-screw transmission: high efficiency, low starting torque, high positioning and repeat positioning accuracy.; Self-aligning ball linear guide support with a light preload assembly process for high load capacity and good straightness and parallelism.; Driven by a standard two-phase stepper motor for high torque and stability.; Equipped with a grating scale and high-precision read head for closed-loop control and higher positioning accuracy.; Two mechanical limit switches provide over-travel speed reduction and limit protection.; One photoelectric zero switch provides precise zero positioning and error correction.; Standard DB9 interface for strong versatility and compatibility with the company’s two-phase stepper motor controllers.
Product Introduction
The EPSA-G series is based on the EPSA standard motorized linear stage and adds a grating scale for closed-loop feedback, providing higher positioning accuracy and repeatability. It uses precision ball screws, self-aligning ball linear guides and high-quality couplings for transmission, a high-torque, low-heat, high-stability two-phase stepper motor as the power source, and lightweight, high-strength aluminum alloy as the main body material. Suitable for precision optical experiments, precision positioning and precision machining across research and industrial applications.
Product Features
Special machining process and anodized surface finish unify precision, wear resistance and appearance.; Precision ball-screw transmission: high efficiency, low starting torque, high positioning and repeat positioning accuracy.; Self-aligning ball linear guide support with a light preload assembly process for high load capacity and good straightness and parallelism.; Driven by a standard two-phase stepper motor for high torque and stability.; Equipped with a grating scale and high-precision read head for closed-loop control and higher positioning accuracy.; Two mechanical limit switches provide over-travel speed reduction and limit protection.; One photoelectric zero switch provides precise zero positioning and error correction.; Standard DB9 interface for strong versatility and compatibility with the company’s two-phase stepper motor controllers.
Technical Specifications
| Model | EPSA50G | EPSA100G | EPSA150G | EPSA200G | EPSA300G | EPSA400G | ||||
| Mechanical Specifications | Tabletop Size (mm) | 125X124 | 160X160 | |||||||
| Travel (mm) | 50 | 100 | 150 | 200 | 300 | 400 | ||||
| Transmission Mechanism | Precision Ball Screw Ø12×4 | Precision Ball Screw Ø16×4 | ||||||||
| Guide (Guiding Mechanism) | Linear Slider Guide | |||||||||
| Body Material & Surface Finish | Aluminum alloy, black anodized | |||||||||
| Overall Height (mm) | 55mm | 66mm | ||||||||
| Weight | 4.0 | 4.4 | 4.9 | 5.3 | 10.6 | 12.3 | ||||
| Coupling (OD-Bore1-Bore2) (mm) | 25-6-5 | 25-10-6.35 | ||||||||
| Accuracy Specifications | Closed-Loop Resolution (μm) | 1μm | 0.1μm | |||||||
| Open-Loop Resolution at 1/20 Micro-stepping | 1μm | |||||||||
| Max Speed (mm/s) | 20 | |||||||||
| Repeat Positioning Accuracy (μm) | ≤±10 | |||||||||
| Backlash (μm) | ≤10 | |||||||||
| Static Parallelism (μm) | ≤50 | |||||||||
| Yaw (“) | ≤50 | ≤60 | ||||||||
| Pitch (“) | ≤50 | ≤60 | ||||||||
| Electrical Specifications | Motor & Step Angle (°) | 2-phase 42 stepper motor, step angle 1.8° | 2-phase 57 stepper motor, step angle 1.8° | |||||||
| Motor Brand & Model | Leadshine | |||||||||
| Operating Current (A) | 2.5 | 4.2 | ||||||||
| Motor Torque (N·m) | 0.6 | 1.3 | ||||||||
| Grating Scale Brand | Guiyang Xintian | |||||||||
| Driver Brand & Model | Leadshine | |||||||||
| Slide Connector & Grating Scale Connector | Two DB9 (pin) | |||||||||
| Slide Connector Cable Type | High-Flex Cable | |||||||||
| Slide Connector Cable Length (m) | 0.4 | |||||||||
| Limit Sensor (built-in) | OMRON | |||||||||
| Home Sensor (built-in) | OMRON | |||||||||
| Sensor Supply Voltage (V) | DC24V ±10% | |||||||||
| Current Consumption (mV) | Total below 30 mA | |||||||||
| Control Output | Output: NPN open collector; load supply: DC24V; OFF current: below 0.5 mA; residual voltage: below 0.7 V (at 50 mA load), below 0.4 V (at 5 mA load); | |||||||||
| Output Logic | Output transistor OFF (cut off) at limit; | |||||||||
| Load | Horizontal Load | 20kg | 30kg | |||||||
| Inverted Load | 10kg | 15kg | ||||||||
| Vertical Load | 10kg | 15kg | ||||||||
| Matching Z-Axis Adapter Plate Model | OMLB01B | OMLB01B | OMLB02B | OMLB02B | OMLB03B | OMLB03B | ||||
| Max speed at no load, calculated theoretically and measured at 300 rpm stepper speed. | ||||||||||
