The SMC MXS6-20 is a compact air slide table engineered for applications that require precise short-stroke linear movement, stable load guidance, and efficient use of installation space. It is part of SMC’s MXS Series, a product family built around an integrated slide-table concept that combines the actuator and guide mechanism into one compact unit. In the model designation, “6” identifies the 6 mm bore size, and “20” identifies the 20 mm stroke length. The current SMC-linked product datasheet also classifies this model as a double-acting pneumatic unit intended for standard industrial automation duty.
Unlike a conventional rod cylinder that often requires a separate external guide for accurate movement, the MXS series is designed as a self-contained guided actuator. SMC’s series documentation describes it as an air slide table, and the RS-hosted SMC datasheet for MXS6-20 identifies it specifically as an “Air Slide Table, Cross Roller Guide.” That architecture is significant because the cross roller guide structure is intended to improve rigidity, smooth movement, and repeatability during linear travel, especially in compact tooling and precision assembly systems.
For OEM equipment, bench-top automation devices, compact transfer mechanisms, and small-part handling assemblies, the MXS6-20 fills an important niche: it offers guided motion in a small footprint without the mechanical complexity of pairing a miniature cylinder with a separate slide rail. This combination makes it well suited to machines where space is constrained but alignment and motion quality still matter.
Core Technical Specifications
| Item | Specification |
|---|---|
| Product Model | SMC MXS6-20 |
| Product Type | Air Slide Table |
| Series | MXS Series |
| Guide Type | Cross Roller Guide |
| Bore Size | 6 mm |
| Stroke Length | 20 mm |
| Operation | Double acting |
| Pressure Medium | Air |
| Port / Pneumatic Input Connection | M3 |
| Minimum Operating Pressure | 0.15 MPa |
| Maximum Operating Pressure | 0.7 MPa |
| Proof Pressure | 1.05 MPa |
| Maximum Piston Speed | 500 mm/s |
| Minimum Piston Speed | 50 mm/s |
| Cushioning | Rubber bumper |
| Lubrication | Non-lube |
| Product Net Weight | 0.100 kg |
| Maximum Temperature (with magnet) | 60 °C |
| Minimum Temperature (with magnet) | -10 °C |
The table above is based on the product datasheet for MXS6-20. That datasheet lists the bore, stroke, operating pressure range, speed range, cushioning type, lubrication type, and weight of 0.100 kg. It also identifies the model as a standard MXS-series unit without an auto switch in the referenced base configuration.
Product Weight
A key detail for sourcing and engineering purposes is the product weight. The SMC-linked datasheet for MXS6-20 lists the unit weight as 0.100 kg, which is equivalent to 100 grams. This is the most defensible figure to use for technical descriptions, quotation sheets, and catalog-style product content because it comes from a current product datasheet tied directly to this exact part number rather than a generic series estimate.
Weight matters in real machine design. On compact automation equipment, the moving mass of the actuator affects bracket selection, dynamic response, and the total inertia applied to supporting structures. A 100 g guided actuator is relatively light, which helps when the part is installed on moving fixtures, precision stations, compact indexing mechanisms, or other assemblies where designers want to limit mass while still maintaining guided movement.
Functional Design Advantages
One of the main reasons engineers choose the MXS6-20 is its integrated guidance system. In many automation systems, accurate short linear travel is difficult to achieve with a basic single-rod cylinder alone because side load, offset mounting, or workpiece eccentricity can create wobble or uneven movement. The MXS design addresses that by incorporating the slide table and guide into one body, which improves motion control and reduces the need for additional external guiding hardware.
The use of a cross roller guide is especially important. Compared with simpler low-rigidity guidance methods, a cross roller guide is selected where smooth travel, good rigidity, and accurate linear positioning are priorities. In practical terms, this means the MXS6-20 is suitable for tasks such as small-part transfer, precision alignment, feeding, pressing assistance, and repeatable stop positioning in compact machinery. The product is positioned less as a general pushing cylinder and more as a guided linear motion component for controlled movement.
Another practical benefit is reduced design complexity. Because the actuator body and guiding function are integrated, fewer additional parts are required in the machine. That can simplify assembly, reduce component count, shorten installation time, and improve consistency from one machine build to another. For maintenance teams, this also makes replacement simpler because the guide and actuation section are handled as one matched unit.
Performance Characteristics in Industrial Use
The 0.15 to 0.7 MPa operating pressure range gives the MXS6-20 compatibility with standard compressed-air systems used across general factory automation. Its proof pressure of 1.05 MPa provides the expected margin for pneumatic equipment in this class. The 50 to 500 mm/s piston speed range means the actuator can be configured for either controlled moderate-speed movement or faster short-stroke cycling, depending on the load condition and pneumatic speed control setup.
The datasheet also lists theoretical cylinder force values of 29 N on the advance stroke and 21 N on the return stroke at 0.5 MPa. These values indicate that the MXS6-20 is intended for compact, light-duty guided motion rather than high-thrust heavy-load actuation. In application terms, that makes it appropriate for moving light workpieces, performing guided positioning, or supporting precision assembly operations where motion quality is more important than raw thrust output.
Its rubber bumper cushioning and non-lube specification also reflect its role as a clean, compact, low-maintenance actuator for standard industrial use. The non-lube feature is beneficial in equipment where users want to minimize maintenance complexity and avoid additional lubrication requirements in routine operation.
Typical Application Scenarios
| Application Area | Typical Use of MXS6-20 |
|---|---|
| Precision Assembly Equipment | Small-part positioning, guided insertion support |
| Electronics Manufacturing | Compact transfer and repeatable short-stroke motion |
| Packaging Machinery | Stopper movement, light product separation, lane control |
| Inspection Fixtures | Controlled approach and retract motion |
| Automation Jigs | Guided movement for tooling alignment |
| Light Industrial Handling | Small component transfer in compact spaces |
Because of its compact dimensions, guided structure, and short 20 mm stroke, the MXS6-20 is especially appropriate where the required movement is limited but must remain stable and repeatable. That includes applications such as sensor-triggered product stops, miniature pick-and-place assist axes, component indexing, and compact clamping or positioning modules. Its air slide table format makes it a stronger choice than a plain mini-cylinder when the workpiece must move along a defined linear path without noticeable play.
Why Buyers Choose SMC MXS6-20
From a purchasing perspective, the MXS6-20 offers several clear advantages:
| Buying Factor | Practical Benefit |
|---|---|
| Recognized SMC platform | Easier sourcing and replacement confidence |
| Integrated guided actuator design | Fewer external guide parts required |
| Compact 6 mm bore format | Suitable for small machines and tight layouts |
| 20 mm standard stroke | Useful for short, repeatable transfer motion |
| Verified 0.100 kg weight | Reliable for technical documents and quotations |
For spare-parts buyers, machine builders, and industrial distributors, the model is attractive because it sits in a well-established SMC series and addresses a common automation requirement: compact guided movement with predictable performance. Its specification profile is straightforward, and the exact part-level datasheet makes commercial documentation easier and more credible.
Conclusion
The SMC MXS6-20 is a compact cross-roller-guide air slide table designed for precise short-stroke pneumatic motion. With a 6 mm bore, 20 mm stroke, double-acting operation, M3 pneumatic connection, and a verified weight of 0.100 kg, it is well suited for precision assembly, compact transfer, and guided positioning tasks in modern automation equipment.
