The AirTAC AirTAC SDA80X70 Compact Cylinder | 80mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 70mm 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 SDA80X70 is a double-acting, single-rod compact cylinder engineered to deliver a substantial 2513.3 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly shortened unit, drastically reducing the axial mounting footprint required by conventional round-body actuators in heavy-duty jigs. The hard-anodized 80 mm bore operates efficiently between 30 and 500 mm/s.
This model relies on a fixed NBR bumper at each stroke end to absorb impact energy rather than an adjustable air cushion. Because this SKU lacks the -S piston magnet, it cannot host reed or electronic switches; position sensing requires the -S variant. The 25 mm piston rod terminates in a female M14x1.5 thread, and the PT3/8 air ports provide the pneumatic flow necessary for rapid high-thrust cycles.
| Model | AirTAC SDA80X70 Compact Cylinder | 80mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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. |
| ×70 | 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 in plastic injection molding machines, utilizing the 2513.3 N extend force to reliably break large molded parts free from deep cavities.
Pushes heavy steel billets into a forming press, where the shortened 80 mm riveted body conserves valuable axial space along the heavy-duty feed line.
Raises and lowers heavy machining pallets, lifting loads up to 128.1 kg vertically with a 2:1 safety factor while maintaining precise 70 mm stroke displacement.
When sizing this actuator, evaluate your force requirements against adjacent bores: the SDA63 provides 1558.6 N of push at 0.5 MPa, while the SDA100 steps up to 3927 N at the same pressure. For this 80 mm bore, the safe working load is approximately 1508 N (about 60% of the 2513.3 N capacity), translating to a vertical lift capability of roughly 128.1 kg with a 2:1 safety margin. Ensure your ordering essentials specify the 70 mm stroke, PT3/8 port, female M14x1.5 rod thread, and no magnet.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the control valve is centered. The fixed NBR bumper only decelerates the piston near the stroke limits and does not function as a locking brake. If your machinery must hold a vertical load during an emergency stop, integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
At 0.5 MPa this 80 mm bore cylinder outputs 2513.3 N of push and 2267.8 N of pull. At 0.7 MPa, push increases to 3518.6 N and pull to 3175 N. The theoretical maximum push force is 513 kgf at the 1.0 MPa operating pressure limit, with a proof pressure of 1.5 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not a field-adjustable air cushion. Additionally, this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches; you must select the -S option for position sensing.
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