0.32" (8 mm) or Less Motorized Actuators: DC Servo & Stepper Motors
Features- Sleek Compact Package
- Smallest of our Stepper Motor Actuators
- Two Mounting Options: Ø3/8" Smooth Barrel or 1/4"-80 Threaded Barrel
- Compatible with a Wide Range of Mirror Mounts and Translation Stages
- Also Available in 13 mm and 25 mm Travel Versions
Our ZST Actuators provide smooth, precise linear motion control in a sleek compact package. Powered by a small diameter, dual-phase stepper motor, these actuators operate at speeds of up to 0.5 mm/s. Mounting options include a high tolerance standard Ø0.375" mounting barrel for fastening into any compatible clamp, and a 1/4"-80 threaded barrel for use with any standard manual mirror mount using 1/4"-80 threads. | Specification | Value |
|---|
| Travel | 0.25" (6 mm) | | Max Load Vertical | 8 lbs (3.6 kg) | | Max Load Horizontal | 12 lbs (5.5 kg) | | Motor Type | 2 Phase Stepper | | Operating Mode | Current Limited | | Phase Inductance (1 kHz) | 5.5 mH | | Nom Supply Current (100% Duty Cycle) | 0.25 A | | Phase Resistance (20 °C) | 12.5 Ω | Holding Torque
(with Nominal Current in Both Phases) | 65 oz/in | | Lead Screw Pitch | 0.5 mm | | Calculated Resolution (microstepping) | 2.14 nm | | Repeatability | <8 µm | | Backlash (with preload) | <8 µm | | Feedback | None | | Full Step Angle (Motor) | 15° | | Micro Steps per Revolution of the Leadscrew | 233472 | | Planetary Gearhead Ratio | 76:1 | | Limit Switches | Mechanical | | Speed Range (3rd Party Controller)* | 1 µm/s to 0.5 mm/s | | Speed Range (TST001 Controller) | 1 µm/s to 0.35 mm/s | | Max Winding Temperature | 266 °F (130 °C) | | Operating Temperature | -31 to 158 °F
(-35 to 70 °C) |
*This speed range is the maxium rating for the device alone. When used with the recommended controller above (TST001), the max speed is 350 µm/s. Electromechanical limit switches prevent the unit from being overdriven and provide homing capability with an accuracy of <10 μm. The rear-mounted high-density push/pull connectors offer a durable, compact connectivity solution. The ZST series actuators come with a ZST-CAB2 cable (which is also available separately) to connect to the TST001 controller. Please note that when using this actuator with the recommended TST001 T-Cube Stepper Motor Controller, the default settings for the phase current limit the maximum speed to 0.35 mm/s.
Connector Pin Out| Pin | Description |
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| 1 | Reserved For Future Use | | 2 | Motor Phase A+ | | 3 | Motor Phase A- | | 4 | Motor Phase B+ | | 5 | Motor Phase B+ | | 6 | Forward Limit Switch | | 7 | Reverse Limit Switch | | 8 | Limit Switch Ground | | 9 | Reserved For Future Use | | 10 | Reserved For Future Use |
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How to calculate the linear displacement per microstep The stepper motor used in the ZST series actuators has 24 full steps per revolution of the motor. Each full step is broken down into 128 microsteps. There are 3072 microsteps per revolution of the motor when using the TST001. The output shaft of the motor goes into a 76:1 planetary gear head. This gear head requires the motor to rotate 76 full revolutions to rotate the 0.5 mm pitch lead screw one revolution. The end result is the leadscrew advances by 0.5 mm. To calculate the linear displacement of the actuator microstep, use the following: 3072 x 76 = 233,472 microsteps per revolution of the lead screw The linear displacement of the lead screw per microstep is: 0.5 mm / 233,472 = 2.14 x 10-6 mm To calculate the linear displacment for a full step, substitute 233,472 with 1,824.
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| Specification | Value |
|---|
| Travel | 8 mm (0.315") | | Max Load Capacity | 48lbs (21.8 kg) | | Motor Type | 2 Phase Stepper | | Lead Screw Pitch | 0.5 mm | | Bidirectional Repeatability | 0.5 µm | | Minimum Incremental Movement | 60 nm | | Feedback | None | | Micro Steps per Revolution of Leadscrew | 409,600 | | Limit Switches | Ceramic Tipped Mechanical | | Speed Range | 40.0 µm/s to 4 mm/s | | Full Step Angle | 1.8° | | Step Angle Accuracy | 5% | | Rated Phase Current | 1 A | | Phase Resistance | 4.6 Ω | | Phase Inductance | 0.6 mH | | Holding Torque | 23.1 N-cm | | Detent Torque | 1.7 N-cm | | Rotor Inertia | 32 g-cm2 | | Insulation Class | B | | Compatible Controllers | BSC201
MST602 |
Features- Ideal for 4 mm Travel Stages
- 8 mm Total Travel
- High Load Capacity
- Non-Rotating Tip
- Manual Adjuster Knob Provided
- 3 m (9.8') Connection Cable Included
- Compatible with Modular Quick-Connect Adapter
The DRV001 Modular Stepper Motor Actuator is ideal for short travel stages equipped with the Modular Quick-Connect adapter such as the MAX300 and MAX600 series flexure stages. This actuator is capable of speeds as high as 4 mm/s with 8 mm of travel with a minimum incremental movement of 60 nm. The powerful stepper motor is capable of handling a load capacity of up to 48 lbs (22 kg). Bidirectional repeatability is 0.5 μm. Using the MCA series quick connect adapters, these actuators can also be fitted to stages with standard (3/8" or 10 mm) mounting clamps. A 3 m (9.8') PAA613 cable is included for connecting the stepper motor to the controller. If a shorter cable is required, a 1 m (3.3') PAA612 cable is also available separately.
Connector Pin Out| Pin | Description |
|---|
| 1 | Limit Switch Ground | | 2 | Not Connected | | 3 | CW Limit Switch | | 4 | Motor Phase B- | | 5 | Motor Phase B+ | | 6 | Motor Phase A- | | 7 | Motor Phase A+ | | 8 to 12 | Reserved For Future Use | | 13 | + 5 V | | 14 | Reserved For Future Use | | 15 | Earth GND |
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How to calculate the linear displacement per microstep The stepper motor used in the DRV001 actuator has 200 full steps per revolution of the motor. Each full step is broken down into 128 microsteps. There are 409,600 microsteps per revolution of the motor when using the BSC201 controller. The end result is the leadscrew advances by 0.5 mm. To calculate the linear displacement of the actuator microstep, use the following: 409,600 microsteps per revolution of the lead screw The linear displacement of the lead screw per microstep is: 0.5 mm / 409,600 = 1.2 x 10-6 mm To calculate the linear displacment for a full step, substitute 409,600 with 200.
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| Specification | Value |
|---|
| Bidirectional Repeatability | <1.5 µm | | Backlash | <8 µm | | Maximum Acceleration | 4 mm/sec2 | | Maximum Velocity* | 2.6 mm/sec | | Velocity Stability | ±0.125 mm/sec | | Maximum Vertical Load Capacity | 4.5 kg | | Maximum Horizontal Load Capacity | 9 kg | | Recommended Horizontal Load Capacity | <7.5 kg | | Recommended Vertical Load Capacity | <4.0 kg | | Min Achievable Incremental Movement | 0.05 µm | | Min Repeatable Incremental Movement | 0.2 µm | | Absolute On-Axis Accuracy | 42 µm | | Maximum Percentage Accuracy | 0.75% | | Home Location Accuracy | <2 µm | | Homing Repeatability | ±1.0 µm | | Operating Temperature Range | 41° to 104° F
(5° to 40° C) | | Max Motor Coil Temperature | 85 °C | | Limit Switch Life Time | >100,000 Cycles | | Weight | 0.134 kg | | Travel Range | 6.0 mm |
*At 2.6 mm/sec velocity ripple and distortion of the acceleration/deceleration profile may occur. For improved control, the max velocity should be limited to 2.3 mm/sec.
For applications with longer travel requirements, see our 12 mm travel Z812 and 25 mm travel Z825 actuators. We also offer the Z806V vacuum-compatible version, which is rated for use down to 10-6 torr and is shipped with a 6" flat ribbon cable, IDC connector, and converter cable for use with the TDC001 controller. See below for more details. Features- Compact 12 VDC Servo Actuator
- Sub-micron Resolution
- 2.3 mm/sec Maximum Velocity
- Drop In Replacement for Most 6 mm Manual Actuators
- Compatible with 1/4"-80 Thread-Fitting Stages and Mounts
- Limit Switches for Zero Datum and Actuator Protection
- Also Available in 12 mm and 25 mm Travel Versions
The Z8 Series of Motorized Actuators are engineered for use with optical positioning devices such as mirror mounts and stages. They offer high resolution in a lightweight, compact package, which makes these actuators ideally suited for demanding optical laboratory automation applications. The Z806 has been designed as a replacement for the Z706 motor. Commercial limit switches have been added to provide overdrive protection and accurate home positioning. The motor in the Z8 provides higher torque than the Z7, allowing the gearbox ratio to be reduced and increasing the motion velocity to 2.3 mm/sec compared to 0.4 mm/sec for the Z7. The precision of the encoder is higher (512 counts/rev instead of 48 for the Z7), which compensates for the gearbox reduction, making the minimum resolution about 29 nm. The Z806 has been designed specifically to replace the manual adjusters in stages and mirror mounts that have 1/4"-80 threaded fittings. Simply remove the existing manual adjuster from the mount, and screw in our Z8 Actuator. The photo below shows a KM100 mirror mount, with one of the screw adjusters replaced by a Z806 actuator.  The units are shipped with 1.6' (0.5 m) of cable. A 2.5 m (8 ft) extension cable ( PAA632) is available separately. The TDC001 DC Servo Controller is the ideal driver for the Z8 series actuators. Please note that older TDC001 units will require a firmware upgrade to V1.0.10 or later, before they can be used with the Z8 series motors. An upgrade is included with the latest APTServer software, which can be downloaded here.
| Pin | Description | Pin | Description |
|---|
| 1 | Ground (Limit and Vcc) | 8 | Reserved For Future Use | | 2 | Forward Limit | 9 | Ident Resistor | | 3 | Reverse Limit | 10 | Vcc (5 V DC) | | 4 | Reserved For Future Use | 11 | Encoder Channel A | | 5 | Motor (-) | 12 | Reserved For Future Use | | 6 | Reserved For Future Use | 13 | Encoder Channel B | | 7 | Motor (+) | 14, 15 | Reserved For Future Use |
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How to Calculate the Linear Displacement per Encoder CountFor the Z806, there are 512 encoder counts per revolution of the motor. The output shaft of the motor goes into a 67:1 planetary gear head. This requires the motor to rotate 67 times to rotate the 1.0 mm pitch lead screw one revolution. The end result is the lead screw advances by 1.0 mm. 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).
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| Specification | Value |
|---|
| Vacuum Rating | 10-6 Torr | | Bidirectional Repeatability | <1.5 µm | | Backlash | <8 µm | | Maximum Acceleration | 4 mm/sec2 | | Maximum Velocity* | 2.6 mm/sec | | Velocity Stability | ±0.125 mm/sec | | Maximum Vertical Load Capacity | 4.5 kg | | Maximum Horizontal Load Capacity | 9 kg | | Recommended Horizontal Load Capacity | <7.5 kg | | Recommended Vertical Load Capacity | <4.0 kg | | Min Achievable Incremental Movement | 0.05 µm | | Min Repeatable Incremental Movement | 0.2 µm | | Absolute On-Axis Accuracy | 42 µm | | Maximum Percentage Accuracy | 0.82% | | Home Location Accuracy | <2 µm | | Homing Repeatability | ±1.0 µm | | Operating Temperature Range | 41° to 104° F
(5° to 40° C) | | Max Motor Coil Temperature | 85 °C | | Limit Switch Life Time | >100,000 Cycles | | Weight | 0.134 kg | | Travel Range | 25.0 mm |
*At 2.6 mm/sec velocity ripple and distortion of the acceleration/deceleration profile may occur. For improved control, the max velocity should be limited to 2.3 mm/sec. Features- Compact 12 VDC Servo Actuator
- Sub-micron Resolution
- 2.3 mm/sec Maximum Velocity
- Drop In Replacement for Most 6 mm Manual Actuators
- Compatible with 1/4"-80 Thread-Fitting Stages and Mounts
- Limit Switches for Zero Datum and Actuator Protection
- Rated Down To 10-6 Torr
- Also Available in 12 mm and 25 mm Travel Versions
The Z806V offers all the features and specifications of the Z806 described above, together with vacuum compatibility. These motors feature vacuum rated servo motors, phosphorus bronze internal coupling mechanism and mounting bush, and high vacuum grease. They are rated for use down to 10-6 torr and are shipped with a 1.6' (0.5 m) vacuum compatible flat ribbon cable with IDC connector. This cable has a 0.05" (1.27 mm) pitch, 28 AWG stranded conductors and Fluorinated Ethylene Propylene (FEP) insulation. A converter cable for use with the TDC001 controller is also supplied but this is not vacuum compatible and should only be used outside the chamber. For applications with longer travel requirements, see our 12 mm travel Z812V and 25 mm travel Z825BV actuators. For vacuum compatible versions of our stages and mirror mounts, please contact tech support. The TDC001 DC Servo Controller is the ideal driver for the Z8 series actuators. Please note that older TDC001 units will require a firmware upgrade to V1.0.10 or later, before they can be used with the Z8 series motors. An upgrade is included with the latest APTServer software, which can be downloaded here.
| Pin | Description | Pin | Description |
|---|
| 1 | Motor (+ ve) (12 V) | 6 | Motor (-ve) (12 V) | | 2 | Vcc (5 V) | 7 | Limit Ground | | 3 | Encoder Channel A | 8 | Reverse Limit | | 4 | Encoder Channel B | 9 | Forward Limit | | 5 | Ground | 10 | Reserved for Future Use |
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How to Calculate the Linear Displacement per Encoder CountFor the Z806, there are 512 encoder counts per revolution of the motor. The output shaft of the motor goes into a 67:1 planetary gear head. This requires the motor to rotate 67 times to rotate the 1.0 mm pitch lead screw one revolution. The end result is the lead screw advances by 1.0 mm. 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).
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Features- 1.5 cc Syringe of Apiezon 100 Grease
- Convenient, Inexpensive Package, No Waste
- Prolongs Lifetime of Actuator
- Ready to Dispense
- Vacuum Compatible to 10-9 Torr
This Apiezon grease has excellent anti-sieze properties. It contains PTFE for maximum lubricity and is ideal for re-lubricating the lead screw threads of our ZST and Z8 series actuators described above. It is supplied in a syringe for easy application and is recommended both for general use and for vacuum applications down to 10-9 Torr. It has an optimal working range of 10 to 30°C (50 to 86°F). Note. It is recommended that the lead screws of the Z8 and ZST motors are lubricated every 50,000 cycles or 6 months.
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0.32" (8 mm) or Less Travel
