The AirTAC AirTAC SDA40X5BH Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 5mm 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 SDA40X5BH is a double-acting single-rod compact cylinder engineered for minimal axial mounting depth. Its riveted body assembly significantly reduces overall length compared to round-body alternatives, saving valuable machine footprint. It delivers a robust 628.3 N push force at 0.5 MPa, operating within a 30-500 mm/s speed range.
This specific configuration includes a male M14x1.5 piston rod thread for secure load coupling and an FKM fluororubber seal for enhanced thermal and oil resistance. The unit relies on a fixed NBR bumper at each end to decelerate the stroke, meaning it is not an adjustable air cushion. Because this SKU lacks the -S magnet option, it cannot support magnetic reed or electronic switches.
| Model | AirTAC SDA40X5BH Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 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. |
| ×5 | 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).
Provides high grip force for securing aluminum housings during machining, utilizing the short 5 mm stroke and FKM seals to resist cutting fluid splash.
Executes rapid, precise tucking of corrugated box flaps on high-speed packaging lines where the compact riveted body conserves axial frame space.
Ejects small metal brackets from progressive stamping dies, relying on the 628.3 N extend force to overcome residual friction in tight tooling.
When sizing this actuator, evaluate your neighbours: stepping down to the SDA32 yields 402.1 N push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. For the SDA40X5BH, the 628.3 N output at 0.5 MPa translates to a safe working load of roughly 377 N (about 60 percent of capacity) and a vertical lift capability near 32 kg with a 2:1 safety margin. Confirm your ordering essentials: 40 mm bore, 5 mm stroke, PT1/8 port, male M14x1.5 rod, FKM seals, and no sensor magnet. Note that a plain compact cylinder drifts when air is lost or the valve is centred; the fixed bumper only decelerates near stroke end and acts as neither a lock nor a brake. To hold a load securely without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
This 40 mm bore double-acting cylinder generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 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.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion; for high energy cycles you should add an external shock absorber. The -B option specifies a male M14x1.5 piston rod thread for direct load mounting, and the -H denotes FKM seals for improved fluid resistance.
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