• Compact Modular Design
• High-Load Linear Guide Rails
• Built-In Limit Switches on the Stage
• Hall Effect Encoded DC Servo Motors

The compact, motorized MTS50/M-Z8 stage features a dual set of linear rails with continuously recirculating ball bearings on a moveable carriage. This mechanism provides smooth, low friction movement and ensures high load carrying capacity (4.5 kg vertical and 12 kg horizontal). The drive power is provided by a DC servo motor with a 67:1 gear head and a 1.0 mm pitch lead screw. A built-in Hall Effect encoder provides 512 counts per revolution of the motor.

The linear displacement of the actuator per encoder count is given by: 512 x 67 = 34,304 encoder counts per revolution of the lead screw, whereas the linear displacement of the lead screw per encoder count is given by: 1.0 mm / 34,304 counts = 2.9 x 10-5 mm (29 nm).

The addition of limit switches on the stage itself ensures controlled motion within the parameters of the unit and prevents overdriving in both directions. The stage is shipped with 0.5 m of cable.

• Stage
• Bidirectional Repeatability: 1.6 µm
• Backlash: <6 µm
• Maximum Acceleration: 4.5 mm/sec²
• Maximum Velocity: 3.0 mm/sec
• Velocity Stability: ±0.25 mm/sec
• Max Vertical On-Axis Load Capacity: 4.5 kg
• Max Horizontal On-Axis Load Capacity: 12 kg
• Recommended Vertical Load Capacity: <4.0 kg
• Recommended Horizontal Load Capacity: <10 kg
• Min Achievable Incremental Movement: 0.05 µm
• Min Repeatable Incremental Movement: 0.8 µm
• Absolute On-Axis Accuracy: 290 µm
• Maximum Percentage Accuracy: 0.7%
• Home Location Accuracy: ±4.0 µm
• Pitch: 0.05°
• Yaw: 0.06°
• Weight: 0.34 kg
• Travel Range: 50 mm
• Motor
• Motor Type: DC Servo
• Motor Drive Voltage: 12 V
• Feedback: Hall Effect Encoder
• Encoder Counts per Revolution of the Leadscrew: 34,304
• Terminal Resistance: 95 W
• Output Power: 0.36 W
• Efficiency: 687%
• No Load Speed: 16,500 rpm
• No Load Current: 0.004 A
• Stall Torque: 0.82 mNm
• Friction Torque: 0.03 mNm
• Speed Constant: 1419 rpm/V
• Back EMF Constant: 0.705 mV/rpm
• Torque Constant: 6073 mNm/A
• Current Constant: 0.149 A/mNm
• Rotor Inductance: 310 µH