The AirTAC AirTAC SDA40X100S Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 100mm 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 SDA40X100S 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 body design integrates the barrel, rear cover, piston, and rod into a highly unified assembly, drastically reducing axial mounting depth compared to conventional round-body units. This space-saving footprint is ideal for machinery where tight clearances dictate the layout. The 16 mm piston rod utilizes a female M8x1.25 thread, and the bore features a hard-anodized surface for extended operational life.
Equipped with a built-in piston magnet (-S option), this model supports position detection via an AirTAC reed or electronic switch housed in the grooves around the body. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, absorbing impact without requiring manual tuning. Operating at speeds from 30-500 mm/s, this unit safely handles a working load of approximately 377 N, which translates to a vertical lift capacity of about 32 kg with a 2:1 safety margin.
| Model | AirTAC SDA40X100S Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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. |
| ×100 | 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).
Pushes cartons off a main packaging line onto auxiliary routing belts using the 100 mm stroke and 628.3 N thrust.
Advances cutting tools into a machining center spindle, utilizing the compact riveted body to fit within tight tool changer magazines.
Actuates a lifting mechanism for pallet conveyor gates, safely managing a 32 kg vertical lift with a 2:1 safety margin.
When sizing this actuator, compare its 628.3 N push at 0.5 MPa against adjacent bores: stepping down to the SDA32 yields 402.1 N, while stepping up to the SDA50 provides 981.7 N. To order correctly, confirm the 40 mm bore, 100 mm stroke, PT1/8 port, female M8x1.25 rod thread, and the required -S magnet for switch sensing. Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the directional valve is centered; the piston will drift, and the fixed bumper only decelerates it near the stroke end. If your application must maintain a load without live pressure, integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This 40 mm bore double-acting cylinder provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum push of 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke extremes, which is not field-adjustable. For high-speed or high-energy cycles, you should add an external shock absorber or slow the approach speed.
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