The AirTAC AirTAC SDA40X100BH 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 SDA40X100BH is a double-acting compact cylinder engineered to deliver 628.3 N of push force at 0.5 MPa. This specific SKU includes a male M14x1.5 piston rod thread for secure mechanical coupling and an FKM fluororubber seal option for enhanced thermal and oil resistance. The riveted body design significantly reduces axial mounting depth compared to conventional round-body units, saving valuable machine footprint.
It operates at speeds between 30-500 mm/s and relies on a fixed NBR bumper at each end to decelerate the stroke. Because this configuration omits the -S magnet code, it cannot support magnetic sensing; adding the -S variant would enable reed or electronic switches in the body grooves. The 100 mm stroke pairs with a 16 mm rod to handle a safe working load of roughly 377 N, or a 32 kg vertical lift with a 2:1 safety margin.
| Model | AirTAC SDA40X100BH 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 onto auxiliary sorting lanes within tight conveyor frames where a shorter axial body depth prevents interference with adjacent rollers.
Drives a 100 mm stroke heat jaw on a vertical flow-wrap machine, utilizing the FKM seals to withstand sustained elevated ambient temperatures near the sealing bar.
Thrusts molded plastic parts out of an injection mold cavity, using the male M14x1.5 rod end to thread directly into a custom ejection plate.
When sizing this actuator, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N, allowing you to tune the force precisely to your payload. To finalize your order, confirm the 40 mm bore, 100 mm stroke, PT1/8 port, male M14x1.5 rod thread, and FKM seal configuration. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates near the stroke end and does not function as a lock. If your application must hold a load without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 40 mm bore double-acting cylinder provides 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa with a proof pressure of 1.5 MPa, and the speed range is 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to absorb impact, which is not an adjustable air cushion. For high-speed or high-energy cycles, you should slow the approach speed or install an external shock absorber. Additionally, this specific SKU lacks a piston magnet, so it cannot be used with magnetic switches unless you select the -S variant.
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