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Can-stack
Haydon Kerk Motion Solutions offers a full range of can-stack linear actuators from 15 to 46 mm in size with a wide range of force outputs. Actuators are available in Captive, Non-Captive and External configurations. All stepper motor linear actuators can be customized for application specific needs.
Features:
- Captive, non-captive and external linear configurations.
- Linear Step Accuracy ranging from 3 – 400 microns.
- Dual ball bearings for greater precision and durability.
- Black Ice coated lead screws available.
- Custom nuts and configurations available.
| Series | Travel / Step (Micron) | Max Force (Range) (N) | Stroke (mm) | Diameter (mm) | |
| Captive | Non-Captive | ||||
| External | |||||
| 15000 | 20 | 7 | 12.7 | - | 15 mm |
| 20000 | 25 - 100 | 3 - 17 | 12.7 | < 150 | 20 mm |
| Z20000 | 25 - 100 | 3 - 35 | 12.7 | < 150 | 20 mm |
| 19000 | 25 - 100 | 3 - 50 | 14 | < 150 | 20 mm |
| Z26000 | 6 - 100 | 10 - 80 | 12.7 - 31 | < 150 | 26 mm |
| 25000 | 6 - 100 | 10 - 90 | 12.7 - 31 | < 150 | 25 mm |
| 36000 | 3 - 100 | 15 - 160 | 15.5 | < 150 | 36 mm |
| 37000 | 13 - 100 | 70 - 260 | 17 - 43 | < 150 | 36 mm |
| 46000 | 12.7 - 400 | 20 - 260 | 23.1 | < 200 | 46 mm |
The captive actuators is designed for shorter strokes up to about 8cm. It has a threaded drive screw held mostly inside the motor body connected to a spline. It has a built-in anti-rotation through the use of a spline shaft that allows it to extend and retract as a unit with no requirements for additional anti-rotation. The basic design is least tolerant of system misalignment and is the most protective actuator style because it is self-contained. The captive has the longest basic body style.
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It has a lead screw going through the motor and has no reasonable stroke limits but must be attached to an assembly that will not rotate. This will then allow the lead screw to extend and retract without rotating. The screw can travel freely in and out of the motor body. In certain setups the motor may serve as the drive and the nut in the assembly. The anti-rotation is by the attachment point and is commonly a cut or machined thread on the end of the screw. The non-captive is potentially the shortest overall length assembly.
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It has a rotating screw with an external drive nut that can be mounted to a carriage assembly. The screw is part of the rotor, so it rotates with respect to the motor body. Linear motion is created by the nut traversing back and forth on the lead screw as the lead screw turns. A common end feature of the screw is a bearing journal. External linear motors are most akin to motorized rails where the nut is replaced by a driven carriage assembly.
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