The AirTAC AirTAC SDA40X50B Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 50mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X50B is a double-acting single-rod compact cylinder engineered to deliver 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and 16 mm rod into an exceptionally short axial footprint, conserving machine space where a conventional round-body unit would protrude. This specific SKU features a male M14x1.5 threaded piston rod end for robust mechanical load coupling.
Deceleration at the stroke extremes relies on a fixed NBR bumper rather than an adjustable air cushion, meaning high-speed approaches may require external shock absorption. Because this configuration omits the -S magnet, it cannot host position sensing switches. The hard-anodized 40 mm bore operates at speeds between 30 and 500 mm/s, fed by PT1/8 ports, yielding a theoretical maximum thrust of 128 kgf at 1.0 MPa.
| Model | AirTAC SDA40X50B Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | 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).
Secures aluminum engine blocks onto machining centers using the male M14x1.5 rod end, providing 628.3 N of extend force to hold parts firmly against cutting vibrations.
Drives mechanical arms to fold corrugated box flaps at rates up to 500 mm/s, where the compact riveted body minimizes interference in tight packaging line clearances.
Pushes heavy wooden pallets sideways onto secondary roller lanes, utilizing the 16 mm piston rod to absorb side-loading impacts during high-speed sortation.
When sizing this 40 mm bore, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. For this specific model, the 628.3 N output translates to a safe working load of roughly 377 N (about 60% capacity) or a vertical lift of approximately 32 kg with a 2:1 safety margin. To finalize your order, confirm the 40 mm bore, 50 mm stroke, PT1/8 porting, and the male M14x1.5 rod thread designated by the B option. Note that a plain SDA cylinder will drift and cannot hold a load if air pressure drops or the valve is centered; maintaining vertical loads safely demands an external rod lock or a pilot-operated check valve, as the fixed bumper only decelerates near the end of travel and acts as neither a brake nor a lock.
Quick checklist
This double-acting cylinder generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum thrust is 128 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, withstands 1.5 MPa proof pressure, and functions in temperatures from -20 to +70 C.
No, it uses a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion; high-energy cycles may need external shock absorbers. Additionally, this SKU lacks the -S magnet, so it cannot support reed or electronic switches, and the rod end features the male M14x1.5 thread instead of the default female M8x1.25.
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