The AirTAC AirTAC SDA50X50S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 50mm 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 SDA50X50S is a double-acting single-rod compact cylinder engineered to deliver a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly shortened axial footprint, saving valuable machine mounting depth where longer profile or round-body units cannot fit. The 50 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable operation.
This specific configuration includes the S option, meaning it has a built-in piston magnet compatible with AirTAC reed or electronic switches fitted into the body grooves. It operates at speeds between 30 and 500 mm/s, utilizing a PT1/4 port. End-stopping is handled by a fixed NBR bumper rather than an adjustable air cushion, which safely decelerates the piston near stroke limits without acting as a physical lock.
| Model | AirTAC SDA50X50S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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. |
| ×50 | 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).
Pushes medium-weight cartons off a sorting line using the 981.7 N extend force, with the short riveted body fitting neatly within tight conveyor side-frame clearances.
Acts as a precise stroke-end stop for 50 kg pallet layers during vertical transfer, relying on the 20 mm rod to resist deflection under dynamic loads.
Provides consistent downward pressure for sealing medical blister packs, utilizing the built-in S magnet to trigger an electronic switch at the exact 50 mm seal depth.
When sizing this unit, compare its 981.7 N push force at 0.5 MPa against adjacent bores: stepping down to the SDA40 yields 628.3 N, while stepping up to the SDA63 provides 1558.6 N. For practical application, the safe working load is approximately 589 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capability of roughly 50 kg with a 2:1 safety margin. To finalize your order, confirm the 50 mm bore, 50 mm stroke, PT1/4 port, female M10x1.5 rod-end thread, and the required S magnet option.
Keep in mind that a standard compact cylinder will not hold a load if air pressure drops or the directional valve is centered; the piston will drift, and the fixed NBR bumper only decelerates it near the end of travel. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
At 0.5 MPa, the push force is 981.7 N and the pull force is 824.7 N. At 0.7 MPa, the push force is 1374.4 N and the pull force is 1154.5 N. The theoretical maximum push force is 200 kgf at the 1.0 MPa operating pressure limit.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not a field-adjustable air cushion. Additionally, it does not hold its load if air is lost; the piston drifts, so an external rod lock or pilot-operated check valve is required for position holding.
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