The AirTAC AirTAC SDA32X70SB Compact Cylinder | 32mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø32mm bore and 70mm 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 SDA32X70SB is a double-acting, single-rod compact cylinder engineered to deliver 402.1 N of push force and 345.6 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, and piston into an ultra-short unit, significantly reducing axial mounting depth where a conventional round-body actuator would be too bulky. The bore is hard-anodized for longevity, and the 70 mm stroke operates at speeds between 30 and 500 mm/s.
This specific configuration includes a built-in piston magnet (-S) for position sensing via AirTAC reed or electronic switches fitted into the body grooves, and a male M10x1.25 thread (-B) on the 12 mm rod for direct load coupling. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach or add external shock absorbers for high-energy loads.
| Model | AirTAC SDA32X70SB Compact Cylinder | 32mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M6×1.0 female / M10×1.25 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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. |
|---|---|
| 32 | 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).
Secures aluminum workpieces in a CNC machining center, utilizing the 402.1 N extend force to lock the part against a stop while the short body minimizes interference with the spindle.
Drives a mechanical arm to fold corrugated box flaps at 70 mm stroke, where the male M10x1.25 rod end firmly threads into the folding bracket to prevent loosening during rapid cycling.
Actuates a routing paddle on a logistics conveyor belt, using the integrated magnet and an electronic switch to confirm gate position before parcels arrive at the junction.
When sizing this 32 mm bore actuator, stepping down to an SDA25 yields 245.4 N of push at 0.5 MPa, while stepping up to an SDA40 provides 628.3 N, allowing you to fine-tune the force footprint. For the SDA32X70SB, the safe working load is approximately 241 N (about 60% of the 402.1 N figure), translating to a vertical lift capacity of roughly 20.5 kg with a 2:1 safety margin. To finalize your order, confirm the 32 mm bore, 70 mm stroke, PT1/8 port, the required -S magnet, and the -B male rod thread.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure is lost or the control valve is centered; the piston will drift, and the fixed NBR bumper only decelerates the stroke near its end. If your application requires static position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 32 mm bore double-acting cylinder generates a push force of 402.1 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, the push increases to 563 N. The theoretical maximum push is 82 kgf at the maximum operating pressure of 1.0 MPa.
No, the SDA32X70SB uses a fixed NBR bumper at each end to absorb impact, which is not field-adjustable like an air cushion. For high-speed or high-mass loads, you should reduce the approach speed or install an external shock absorber to prevent damage.
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