The AirTAC AirTAC SDA50X15SH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 15mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA50X15SH is a double-acting single-rod compact cylinder engineered for tight axial spaces. It delivers a robust 981.7 N push and 824.7 N pull at 0.5 MPa. The riveted body assembly drastically reduces overall length compared to conventional round-body units, saving valuable mounting depth. This specific configuration includes a built-in piston magnet for position sensing alongside fluororubber (FKM) seals for enhanced thermal and oil resistance.
This 50 mm bore model features a 20 mm piston rod and PT1/4 ports. Rather than an adjustable air cushion, it relies on a fixed NBR bumper at each end to decelerate the stroke. Because the 15 mm stroke is very short, end-stop energy is minimal, but operators should still avoid excessive side loading on the rod. The external body grooves readily accept AirTAC reed or electronic switches when tracking the piston position.
| Model | AirTAC SDA50X15SH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Drives the high-speed knife and clamp assembly in a packaging splicing station, where the 981.7 N push force cleanly seals polymer webs and the short 15 mm stroke fits within the narrow machine frame.
Positions and aligns delicate printed circuit boards entering a wave soldering machine, utilizing the FKM seals to withstand ambient flux fumes and heat up to 70 C.
Ejects small stamped metal parts from a progressive die set, relying on the 824.7 N retract force to pull the 20 mm rod back rapidly within a 30-500 mm/s speed range.
When sizing this actuator, evaluate your force margins carefully. If you require less thrust, stepping down to the SDA40 yields 628.3 N at 0.5 MPa; conversely, scaling up to the SDA63 provides 1558.6 N at 0.5 MPa. For this SDA50X15SH, the safe working load is approximately 589 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin.
Remember that a standard compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near the stroke end rather than locking the load. To hold a vertical position securely without live pressure, you must integrate an external rod lock or a pilot-operated check valve. When ordering, confirm the 50 mm bore, 15 mm stroke, PT1/4 port, male M18x1.5 or female M10x1.5 rod thread, the S magnet option, and the H FKM seal variant.
Quick checklist
This 50 mm bore double-acting cylinder provides 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper at each end to absorb impact, which is not an adjustable air cushion or a braking lock. For high-speed applications, you should add an external shock absorber. The built-in S magnet works with AirTAC reed or electronic switches mounted in the body grooves for position feedback.
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