The AirTAC AirTAC SDA50X25BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 25mm 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 SDA50X25BH is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod to drastically reduce overall axial length, saving valuable machine footprint where a conventional round-body unit would be too deep. This specific SKU features a male M18x1.5 piston rod thread for robust load coupling and an FKM fluororubber seal option for enhanced thermal and oil resistance.
This 50 mm bore model incorporates a fixed NBR bumper at each end to decelerate the stroke, but it is not an adjustable air cushion. Because this unit lacks the -S magnet code, it cannot accept AirTAC reed or electronic switches. Operating at speeds between 30-500 mm/s, it provides a theoretical maximum push of 200 kgf at 1.0 MPa.
| Model | AirTAC SDA50X25BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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. |
| ×25 | 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 short 25 mm folding strokes on corrugated packaging lines, utilizing the 981.7 N extend force to cleanly tuck heavy cardboard flaps prior to sealing.
Applies precise downward pressure in PCB assembly machinery, where the male M18x1.5 rod end securely mounts the tooling and FKM seals resist factory heat.
Actuates a routing flap on a conveyor system to redirect heavy pallets, benefiting from the space-saving riveted body that fits within tight conveyor frame clearances.
When sizing this actuator, step down to the SDA40 which provides 628.3 N of push at 0.5 MPa, or step up to the SDA63 which yields 1558.6 N at the same pressure. For the SDA50X25BH, a safe working load is approximately 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Confirm your ordering essentials: 50 mm bore, 25 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seals.
Note that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift. The fixed rubber bumper only slows travel near the stroke end and acts as neither a lock nor a brake. If your application must maintain a load without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder provides a push of 981.7 N and a pull of 824.7 N at 0.5 MPa. At 0.7 MPa, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
No, this specific SKU lacks the -S option, meaning it has no piston magnet and cannot trigger AirTAC reed or electronic switches. You would need the -S variant for sensing. Additionally, the end caps use a fixed NBR bumper rather than an adjustable air cushion, so external shock absorbers are recommended for high-energy impacts.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.