The AirTAC AirTAC SDA80X55H Compact Cylinder | 80mm Bore FKM is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 55mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA80X55H is a double-acting single-rod compact cylinder engineered for high-force actuation within a minimal axial footprint. Utilizing a short riveted body assembly, it significantly reduces mounting depth compared to conventional round-body units, making it ideal for machinery where longitudinal space is restricted. At 80 mm bore, it generates 2513.3 N of push force and 2267.8 N of pull force at 0.5 MPa, operating efficiently between 30-500 mm/s. This specific H-series configuration incorporates fluororubber (FKM) seals for enhanced thermal and oil resistance.
The unit features a hard-anodized aluminum bore and a fixed NBR bumper at each end to absorb end-stop impact. Note that this bumper decelerates the piston near stroke completion but is not an adjustable air cushion. The piston rod measures 25 mm in diameter with a female M14x1.5 thread (male M22x1.5 optional), and air connections utilize PT3/8 ports. This SKU omits a piston magnet, so position sensing is not supported without the -S option.
| Model | AirTAC SDA80X55H Compact Cylinder | 80mm Bore FKM |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 heavy ejector pins on plastic injection molding platens, utilizing the 2513.3 N push force to break parts free while fitting within the machine's tight axial mold cavity.
Positions heavy gauge metal sheets on an automotive press brake, where the FKM seals withstand elevated ambient heat and the 25 mm rod resists deflection during high-tonnage indexing.
Actuates a heavy mechanical lift carriage in an end-of-line palletizer, moving loads up to 128.1 kg vertically with a 2:1 safety margin before the fixed NBR bumper decelerates the stroke end.
When sizing this 80 mm bore model, consider stepping down to the SDA63, which yields 1558.6 N of push force at 0.5 MPa, or moving up to the SDA100, which provides 3927 N at the same pressure. For this SDA80X55H configuration, the computed safe working load is approximately 1508 N (about 60% of the 2513.3 N capacity), allowing a vertical lift of roughly 128.1 kg with a 2:1 safety margin. Ensure your ordering essentials specify the 80 mm bore, 55 mm stroke, PT3/8 port thread, FKM seal option, female rod thread, and no magnet.
Be aware that a standard double-acting cylinder does not inherently hold its position upon loss of air supply or when the control valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end without acting as a brake. If your application requires strict load holding without live pressure, you must integrate an external rod lock mechanism or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
The SDA80X55H delivers a push force of 2513.3 N and a pull force of 2267.8 N at 0.5 MPa. At 0.7 MPa, the push force is 3518.6 N and the pull force is 3175 N. The theoretical maximum push force is 513 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and the operating speed spans 30-500 mm/s.
No, a plain double-acting cylinder drifts when air is lost or a valve is centered; the fixed NBR bumper only decelerates the piston near the stroke end and does not function as a locking brake. To maintain position without live pressure, an external rod lock or pilot-operated check valve is required. Additionally, the bumper is a fixed rubber stop, not a field-adjustable air cushion, so high-speed applications may need external shock absorbers.
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