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Compact (CLSM) Linear Shift Mechanism Series
A compact solution to linear motion along the port axis (Z). The CLSM series provides the shortest available flange-to-flange dimension, without compromising on performance or reliability.
Features
- Compact flange-to-flange dimension
- Smooth kinematic motion
- Reliable, rigid construction
- Manual, pneumatic and motorized actuation
- Demountable bellows assembly
- True UHV performance
- Bakeable to 250°C
The CLSM compact series offers the shortest flange-to-flange dimension in the range. As such, the series is offered with limited flange and stroke options.
Specification Table
| Flange Information | Bolt Holes | |||||
| Model | Flange Code | Flange Size | Travelling Flange | Base Flange | Clear Bore (mm) | Maximum Bakeout |
| CLSM | 38 | DN38CF 70mm (2.75" OD) |
M6 Tapped | M6 Tapped | 38 | 250°C |
Dimensional Drawings
Dimensional Table
| Model | A | B | C | D | E | F | G | H |
| CLSM38-25 | 63 | 38 | 173 | 142 | 75 | 38 | 147.5 | 39 |
| CLSM38-50 | 92 | 42 | 202 | 142 | 75 | 38 | 147.5 | 39 |
| CLSM38-75 | 125 | 50 | 235 | 142 | 75 | 38 | 147.5 | 39 |
| CLSM38-100 | 163 | 63 | 273 | 142 | 75 | 38 | 147.5 | 39 |
Contact us by clicking here or +1 800 245 1656 for the complete range of dimension drawings.
Actuation Options
The series can be actuated via a manual handwheel, pneumatic cylinder, DC motor or Stepper motor.
Each CLSM can be supplied with a digital linear scale, offering visual position indication with 10 micron resolution.
 Manual |
 Pneumatic |
 Motor |
| Code | Actuation Method | Description |
| H | Manual | A manual handwheel provides the most basic method of actuation. |
| P | Pneumatic | Pneumatic actuators provide a simple solution to automated operation. |
| PS | Pneumatic | Pneumatic actuator with reed switches. |
Motorization
| Code | Actuation Method | Description |
| SD | DC Motorized | A 24V DC motor provides the motion and is mounted to the side of the LSM. |
| SS | Stepper Motor Driven | A stepper motor provides the motion and is mounted to the side of the LSM. |
| UP | Wiring Upgrade | When purchasing A LSM for use with one of our controllers, an additional wiring upgrade is available. The upgrade includes a bakeable socket connector, mounted to the frame, to which the limit switches are pre-wired. In the case of stepper motor driven products, an extra home switch is also provided. The motor lead terminates with a connector for plug & play connection to the controller. |
Position Readout/Feedback Options
| Code | Item | Description |
| ES | Engraved Shaft | Linear Shift Mechanisms can be fitted with a scale with 1mm increments for visual positioning. |
| DLA | Digital Linear Scale | Digital scale displays are fitted to Linear Shift Mechanisms via a kinematic mount ensuring precise and repeatable location, which is critical for accurate repositioning after bakeout. The scale features large, easy to read characters that can be switched between metric and imperial units. The readout has a resolution of 10 microns (0.01mm). Users can set the ‘Origin’ at any position of its travel, from which it will provide a plus/minus scale in the units selected. The ‘Origin’ is retained in its memory until re-set by the user, even when switched off. A second temporary ‘Zero’ facility is offered to enable one-off measurements to take place, which resets to the ‘Origin’ setting when turned off. |
| UP | Wiring Upgrade | Wiring upgrade with switches for connectivity to controller options. |
Ordering Table
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| Description | Flange Size | Actuation | Clear Bore | Stroke Length | Scale | Part Number | Price | In Stock | Add To Cart | |
|---|---|---|---|---|---|---|---|---|---|---|
| Description | Flange Size | Actuation | Clear Bore | Stroke Length | Scale | Part Number | Price | In Stock | Add To Cart | |
| COMPACT LINEAR SHIFT MECHANISM MOUNTED ON CF40 (2 3/4” OD CF) FLANGES WITH METRIC TAPPED BOLT-HOLES. 50MM STROKE. 38MM CLEAR BORE. DEMOUNTABLE BELLOWS ASSEMBLY. MANUAL HANDWHEEL ACTUATION WITH LASER MARKED 1MM INCREMENTS ON GUIDE SHAFT. | DN38CF (2.75" OD) | Manual | 38mm | 50mm | Etched Scale | CLSM38-50-H-ES | $3,375.00 |
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