Pneumatic Guided Actuators
Guided cylinders utilize guide rods mounted parallel to the piston rod to provide stable, non-rotating, high side load performance. SMC offers dual rod, heavy duty and precision actuator models. Like rodless cylinders, SMC guide rod cylinders reduce rod bending, piston bending and uneven seal wear. Low profile guided actuator series are available for restrictive space limitations.
Pneumatic Slide Tables
Pneumatic slide tables are a specialized subset of guided actuators that are widely used where precision is needed in electronics and semiconductor manufacturing, lab automation, robotics, and small parts assembly. They integrate the driving force and the mechanical linear guide into a single, compact block and feature cross-roller guides that deliver stable movement without looseness or backlash during operation. Their dual rod piston design allows them to generate twice the force of a standard air cylinder of the same size. Buyers can select symmetric designs, extension and/or retraction stroke adjusters, and cleanroom-ready units without having to request a custom build.
Heavy Duty w/Shaft Guide Rods
Heavy duty guide rods (with shaft) are built for heavy-duty brute force automation. They are a perfect solution in lifting, side load and stopping applications. They're engineered to withstand substantial lateral forces and high impact shocks without deflecting or damaging the cylinder seals. There are four types of guide rods in this product line: internal guide shafts, external guide shafts, low profile, and cleanroom. The oversized internal rods deliver +140% impact resistance and +25% eccentric load capacity over standard units, while a central sleeve ensures uniform deflection resistance regardless of load orientation.
Dual Piston Rods
Dual rods are non-rotating linear actuators designed around two parallel piston rods connected to a single front tooling plate. They deliver twice the thrust of a conventional single-rod cylinder of equivalent height, and they provide side load resistance without requiring external guide rails and prevent tooling fixtures, vacuum heads, or grippers from twisting during stroke motion. By using two bores side-by-side instead of increasing bore diameter, engineers achieve the pushing power of a larger cylinder without increasing the vertical profile of the machine.
Precision Non-Rotating Actuator
Precision non-rotating actuators integrate a linear ball spline into the rod bearing assembly. The grooved spline shaft acts as the piston rod, engaging with recirculating balls inside the front bushing, providing the anti-rotational stiffness and positional repeatability of a guided actuator while maintaining the slim profile of a standard round cylinder. This eliminates bulky external guide rods, wide mounting plates, and separate slide rails, cutting the required mounting footprint by 30%. to 50%.
Guided Cylinder FAQ
What are guided cylinders?
Pneumatic guided cylinders are specialized automation components that combine standard pneumatic linear cylinders with built-in, integrated mechanical guides.
When are they used?
Standard pneumatic cylinders are excellent at generating push/pull forces, but they can be vulnerable to bending moments, side loads, and unwanted rotation. Guided cylinders solve this problem by absorbing off-center forces through their guide blocks and bearings instead of transferring that stress to the cylinder rod and internal seals.
What types of guided cylinders are available?
There are two: rod guided cylinders and slide tables. Rod-guided are designed with integrated dual rods to prevent rotation and provide rigidity during push, pull, stopping or lifting operations. Tables have a flat built-in worktable and linear guide for precise linear positioning.
- Because they rely on compressed air instead of electric motors, they don't overheat during rapid, high-cycle operations and are safe to use in hazardous or washdown environments.
- By combining actuation and guidance into a single, compact unit, these actuators shrink the footprint of a machine.
- Guided actuators eliminate the need for external guide mechanisms which can result in time and cost savings.