The AirTAC AirTAC SDA50X90H Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 90mm 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 SDA50X90H is a double-acting single-rod compact cylinder engineered with a 50 mm bore and 90 mm stroke. It generates 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. This unit features an FKM (fluororubber) seal variant, providing enhanced resistance to higher temperatures and oily environments compared to the standard NBR configuration.
Its riveted body design integrates the barrel, rear cover, and piston to drastically reduce axial mounting depth. The hard-anodized bore houses a two-way piston seal, while end-stops rely on a fixed NBR bumper rather than an adjustable air cushion. Without a piston magnet (-S option absent), this specific SKU cannot host magnetic switches, serving purely as a mechanical actuator.
| Model | AirTAC SDA50X90H Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 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. |
| ×90 | 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 heavy film roll carriages into position on automated stretch wrappers, utilizing the 90 mm stroke and FKM seals to endure warm packaging environments.
Actuates sorting flaps on high-speed beverage lines, where the compact 50 mm bore body saves axial space along crowded conveyor frames.
Drives secondary ejector pins for plastic parts, providing 981.7 N of extend force to clear molds safely before robotic extraction.
For sizing context, stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. Based on the 981.7 N output at 0.5 MPa, the safe working load is approximately 589 N (60% capacity), translating to a vertical lift capability of about 50 kg with a 2:1 safety margin. When ordering, confirm the 50 mm bore, 90 mm stroke, PT1/4 port, female M10x1.5 rod thread, and FKM seal. Note that a plain SDA cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. To hold a load securely without live pressure, an external rod lock or pilot-operated check valve is required.
Quick checklist
This 50 mm bore double-acting cylinder outputs 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 is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a speed of 30-500 mm/s.
No. This model uses a fixed NBR bumper at each end to decelerate the stroke end, which is not a field-adjustable air cushion. Additionally, this SKU lacks the -S magnet option, so it cannot support reed or electronic switches; you must select the -S variant for position sensing.
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