½" Motorized Actuators: DC Servo (12 mm) & Stepper Motors (13 mm)
| Specification | Value |
|---|
| Travel | 0.51" (13 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 | | Nominal Supply Current (100% Duty Cycle) | 0.25 A | | Phase Resistance (20 °C) | 12.5 Ω | Holding Torque
(w/ 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 Leadscrew | 233472 | | Planetary Gearhead Ratio | 76:1 | | Limit Switches | Mechanical | | Speed Range (3rd Party Controller)* | 1 to 500 µm/s | | Speed Range (TST001 Controller) | 1 to 350 µm/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 TST001 the max speed is 350 µm/s. Features- Sleek Compact Package
- Capability of Moving Loads up to 12 lbs (5.4 kg)
- Two Mounitng Options: Ø3/8" Smooth Barrel or 1/4"-80 Threaded Barrel
- Compatible with a Wide Range of Mirror Mounts and Translation Stages
- One ZST-CAB2 Cable Included with Actuator Purchase
- Also Available in 6 mm and 25 mm Travel Versions
The ZST Series 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 with the capability of moving loads up to 12 lbs (5.4 kg). The ZST13B has a high tolerance standard Ø0.375" mounting barrel that is compatible with many translation and rotation stages including our popular MT1 Translation Stages. The ZST13 has a 1/4"-80 threaded barrel for use as a replacement for the manual 1/4"-80 threaded actuators on many of our standard mirror mounts. 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 seperately) 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 |
|---|
| 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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| Specifications | 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 | | Minimum Achievable Incremental Movement | 0.05 µm | | Minimum Repeatable Incremental Movement | 0.2 µm | | Absolute On-Axis Accuracy | 95 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 | 12.0 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 different travel requirements, please see our 6 mm Z806 and 25 mm Z825 actuators. We also offer the Z812V and Z812BV vacuum-compatible versions, which are rated for use down to 10-6 torr and are shipped with a 6" flat ribbon cable, IDC connector and converter cable for use with our TDC001 controller. Features- Compact 12 VDC Servo Actuator
- Submicron Resolution
- 2.3 mm/s Maximum Velocity
- Drop In Replacement for Most 12 mm or 1/2" Manual Actuators
- Compatible with 1/4"-80 Thread or 3/8" Barrel-Fitted Stages and Mounts
- Limit Switches for Zero Datum and Actuator Protection
- Also Available in 6 mm and 25 mm Travel Versions
Our Z8 Series Motorized Actuators are engineered for use with optical positioning devices. They offer high resolution in a lightweight, compact package, which makes these actuators ideally suited for demanding optical laboratory automation applications. The Z812 delivers 12 mm of travel and has been designed as a replacement for the existing Z712 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/seccompared to 0.4 mm/sec for the Z7. The precision of the encoder is higher (512 counts per rev instead of 48) which compensates for the gearbox reduction, giving a theoretical minimum resolution 29 nm. The Z812 has been designed specifically to replace the manual adjusters in stages and mirror mounts that have 1/4"-80 screw in fittings (e.g., mirror mounts). The Z812B is for use with 3/8" barrel clamps (e.g., the 1/2" manual micrometer in the MT Series Translation Stages). Simply remove the existing manual adjuster from the mount, and screw in our Z8 Actuator. The photo below shows a KS2 mirror mount with one of the thumbscrew actuators replaced by a Z812 motor 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 Z825, 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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| Specifications | 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 | | Minimum Achievable Incremental Movement | 0.05 µm | | Minimum Repeatable Incremental Movement | 0.2 µm | | Absolute On-Axis Accuracy | 95 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 | 12.0 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
- Submicron Resolution
- 2.3 mm/s Maximum Velocity
- Drop In Replacement for Most 12 mm Manual Actuators
- Compatible with 1/4"-80 Thread and 3/8" Barrel-Fitted Stages and Mounts
- Limit Switches for Zero Datum and Actuator Protection
- Rated Down To 10-6 Torr.
- Also Available in 6 mm and 25 mm Travel Versions
The Z812V and Z812BV offer all the features and specifications of the standard Z812 actuators 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 different travel requirements, please see our 6 mm Z806V and 25 mm 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 | No Connection |
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How to Calculate the Linear Displacement per Encoder CountFor the Z812, 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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1/2" (12 mm) Travel
