The SMC MXQ12-20P is a compact air slide table designed for applications that require accurate linear travel, repeatable positioning, and a rigid guided structure in a small installation footprint. As part of the well-known SMC MXQ Series, this model combines the cylinder body and guide mechanism into one integrated unit, allowing equipment designers to achieve smooth motion, improved load support, and reliable accuracy without using a separate external guide. SMC specifies the MXQ Series as an air slide table with an integrated guide rail and table, and it highlights the use of a recirculating linear guide for high rigidity and high precision.
For the specific model MXQ12-20P, the main identifying characteristics are a 12 mm bore, 20 mm stroke, standard body style, and axial piping option. In the official SMC catalog, the MXQ12 standard configuration is listed with a 20 mm stroke, while the option table identifies P as the axial piping type. This makes the model especially useful in compact automation layouts where tubing direction and machine space management are important design considerations.
Key Product Data
| Item | Description |
|---|---|
| Brand | SMC |
| Model | MXQ12-20P |
| Product Type | Air Slide Table |
| Series | MXQ Series |
| Bore Size | 12 mm |
| Stroke | 20 mm |
| Body Style | Standard type |
| Function Option | Axial piping type |
| Working Medium | Compressed air |
| Action | Double acting |
| Operating Pressure | 0.15 to 0.7 MPa |
| Proof Pressure | 1.05 MPa |
| Ambient / Fluid Temperature | -10 to 60°C |
| Operating Speed Range | 50 to 500 mm/s |
| Lubrication | Non-lube |
| Port Size | M5 × 0.8 |
| Stroke Tolerance | +1 mm |
| Product Net Weight | 387 g (0.387 kg) |
The specification above is based on SMC’s official MXQ web catalog and series catalog. The weight value is derived from the official mass table: 340 g for the MXQ12 20 mm standard stroke, plus the catalog’s axial piping option increase of 43 + 0.2S, which equals 47 g at S = 20 mm, giving a total of 387 g.
Product Structure and Design Advantages
One of the main strengths of the SMC MXQ12-20P is its integrated mechanical concept. Instead of combining a standard pneumatic cylinder with a separate guide assembly, this product merges the actuator and guide into one compact body. That arrangement reduces alignment work during design and assembly, saves mounting space, and helps control deflection during operation. Because SMC uses a recirculating linear guide system, the MXQ Series is suitable for applications where stability and repeatability matter more than simple thrust alone.
The 12 mm bore and 20 mm stroke position this model in the compact precision category. It is not intended to replace a large heavy-duty slide, but it is very effective where a short, controlled stroke is required for transfer, stopping, pressing, clamping support, indexing, or small-part positioning. In compact automation, this kind of short-stroke guided actuator is often chosen to reduce overall cycle path, shorten machine width, and improve repeatability at the point of interaction. These are practical engineering benefits inferred from the MXQ Series design and official performance range.
The axial piping configuration is an important detail in the MXQ12-20P designation. Compared with more conventional side piping layouts, axial piping can simplify tube routing in narrow machine frames and can help designers reduce interference around fixtures, sensors, and adjacent moving parts. In dense automation platforms, this is often a useful option because pneumatic connections can be kept closer to the motion axis, improving cable and tube management. SMC explicitly lists P as the axial piping function option for the MXQ Series.
Why the Weight Matters
The product weight of approximately 0.387 kg is not just a catalog detail. In real machine design, component weight affects bracket sizing, moving mass calculations, installation orientation, shipping cost, and total equipment inertia. For compact handling modules, a lighter guided table can help reduce the burden on support structures and simplify overall mechanical layout. At the same time, the MXQ12-20P remains heavy enough to reflect its guided, rigid construction rather than being a simple lightweight cylinder body.
For OEM designers and maintenance buyers, knowing the actual weight also improves planning accuracy. It helps when estimating the total load of a tooling plate, comparing alternatives during redesign, or checking whether a small frame or cantilever mount will remain stable during repeated cycling. Because the SMC catalog gives both the base mass and the option increment formula, the weight figure for MXQ12-20P can be determined with much more confidence than a rough distributor estimate.
Performance Characteristics in Practical Use
From the official series specification, the MXQ operates with compressed air, uses a double-acting mechanism, and supports an operating pressure range of 0.15 to 0.7 MPa. SMC also lists a proof pressure of 1.05 MPa, a temperature range of -10 to 60°C, and a speed range of 50 to 500 mm/s for the standard configuration. These values show that the MXQ12-20P is intended for mainstream industrial pneumatic automation rather than for extreme high-temperature or ultra-high-speed specialty motion.
For motion output, the series data shows that an MXQ unit with 12 mm bore delivers increasing theoretical force as supply pressure rises. That makes the MXQ12 platform suitable for light to medium compact handling duties where guided accuracy is required. In practice, the actual application result depends on mounting orientation, external load position, friction, speed setting, and workpiece mass, so designers should still verify the full load and moment conditions during equipment design.
The MXQ Series also uses a non-lube design, which simplifies maintenance in normal service conditions. For many factories, that is an advantage because it reduces routine lubrication work and helps keep pneumatic systems cleaner and easier to manage. When combined with the compact body and guided motion structure, this makes the MXQ12-20P a practical choice for machines that need stable daily operation with limited maintenance intervention.
Typical Application Scenarios
The SMC MXQ12-20P is well suited to small assembly automation, component transfer, precision positioning, light pick-and-place support mechanisms, sensor-actuated shuttle movement, and fixture-side sliding tasks where straight-line motion must remain stable under an offset load. Because it is a guided air slide rather than a plain cylinder, it is especially valuable in applications where tooling or workpieces create moments that would quickly reduce accuracy in an unguided actuator. This application guidance is an engineering inference based on the MXQ Series structure and catalog positioning as a high-rigidity, high-precision slide table.
It is also a sensible option in equipment where machine space is limited. The short 20 mm stroke is enough for many clamp-clear, feed-step, stop-position, and transfer tasks. The axial piping version is particularly helpful when lateral tube space is restricted or when designers want a cleaner pneumatic layout near guide surfaces, sensors, or end tooling.
Selection and Installation Considerations
When selecting the MXQ12-20P, buyers should not look only at bore size and stroke. The more important question is whether the application needs guided rigidity, short precise travel, and compact packaging. If the application includes eccentric loading, frequent cycling, or a need for better positional stability than a simple cylinder can provide, the MXQ structure is a stronger choice. If the application is only straight pushing with no meaningful side load, a simpler actuator may be more economical. That is the real decision point.
Tube routing, mounting accuracy, workpiece mass, and shock conditions should also be considered carefully. Even a well-designed air slide table can lose performance if mounted on an uneven base or used with excessive moment loading. For production equipment, it is good practice to review the complete SMC series data for allowable load and moment conditions before final release.
Conclusion
The SMC MXQ12-20P is a compact and practical precision air slide table for engineers who need stable linear motion in a limited space. Its 12 mm bore, 20 mm stroke, double-acting pneumatic operation, integrated recirculating linear guide, and axial piping layout make it a solid choice for compact automation equipment. The product weight is approximately 387 g, which reflects a balanced combination of compact size and guided mechanical strength. For small transfer, positioning, indexing, and assembly applications, the MXQ12-20P is a dependable option that fits well into modern pneumatic machine design.
