The AirTAC AirTAC SDA40X30H Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 30mm 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 SDA40X30H is a double-acting single-rod compact cylinder engineered with a 40 mm bore and 30 mm stroke. It generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The -H designation indicates a fluororubber (FKM) seal variant, providing enhanced resistance to higher temperatures and oils compared to standard NBR. Its riveted assembly merges the barrel, rear cover, piston, and rod into an exceptionally short axial footprint, saving valuable machine space.
This model features a 16 mm piston rod and PT1/8 air ports. Instead of an adjustable air cushion, it relies on a fixed NBR bumper at each end to decelerate the stroke. Because this SKU lacks the -S option, it has no piston magnet and cannot support magnetic switches. Operating speed ranges from 30-500 mm/s, and the hard-anodized bore ensures long service life.
| Model | AirTAC SDA40X30H Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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. |
| ×30 | 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 engine blocks during CNC machining. The 628.3 N extend force at 0.5 MPa provides rigid holding, while the FKM seals withstand spray coolant and elevated ambient heat.
Presses cardboard carton flaps in a packaging line near heat tunnels. The compact riveted body minimizes axial footprint, and the fluororubber seals resist degraded performance from hot glue vapors.
Actuates a routing flap on a conveyor sorting metal hardware. With a safe working load around 377 N, it reliably pushes heavy steel bins laterally without requiring a large profile cylinder.
When sizing this actuator, evaluate your force margins carefully. If you need less output, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa; if your application requires more power, the SDA50 provides 981.7 N at the same pressure. For the SDA40X30H, the safe working load is approximately 377 N (about 60% of the 628.3 N figure at 0.5 MPa), which translates to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. Confirm your ordering essentials: 40 mm bore, 30 mm stroke, PT1/8 port, female rod thread (M8x1.25), and FKM seals.
Keep in mind that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the load near the stroke end rather than locking it. If your setup must maintain a vertical load without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 40 mm bore double-acting cylinder delivers 628.3 N push and 527.8 N pull at 0.5 MPa, and 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 speed range of 30-500 mm/s.
No, this specific SKU lacks the -S piston magnet, meaning it cannot trigger AirTAC reed or electronic switches. You would need the -S variant for position sensing. Additionally, it uses a fixed NBR bumper for end-stop deceleration rather than an adjustable air cushion.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.