The AirTAC AirTAC SDA40X30SBH 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 SDA40X30SBH is a double-acting, single-rod compact cylinder engineered with a hard-anodized bore and a two-way piston seal. It generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. This specific configuration includes a built-in piston magnet for position sensing, a male M14x1.5 piston rod thread, and high-temperature fluororubber (FKM) seals. Its riveted body design drastically reduces axial mounting depth compared to traditional round-body cylinders, saving valuable machine footprint.
End-of-travel deceleration is handled by a fixed NBR bumper at each end, which is not an adjustable air cushion. Operating speeds range from 30-500 mm/s. Because the piston rod is relatively short to maintain the compact footprint, avoiding side loads is critical to prevent premature seal wear and rod binding.
| Model | AirTAC SDA40X30SBH 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 machining operations, utilizing the 628.3 N push force to maintain rigid clamping without consuming excessive vertical bay space.
Drives mechanical arms to tuck corrugated box flaps prior to tape sealing, where the 30 mm stroke and integrated magnet confirm fold completion via reed or electronic switches.
Actuates a routing flap on a beverage filling line to sort glass bottles into parallel lanes, benefiting from the FKM seals in environments with occasional lubricant overspray.
When sizing this 40 mm bore actuator, consider stepping down to the SDA32, which yields 402.1 N of push force at 0.5 MPa, or moving up to the SDA50, which provides 981.7 N at the same pressure. The 628.3 N output at 0.5 MPa translates to a safe working load of roughly 377 N (about 60% capacity) or a vertical lift capability of approximately 32 kg with a 2:1 safety margin. To confirm your ordering essentials for this model: specify the 40 mm bore, 30 mm stroke, PT1/8 port, male M14x1.5 rod thread (B), magnetic piston (S), and FKM seals (H).
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 the stroke near the end points rather than locking the load. If your application requires strict position holding 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 provides 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. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
The -B option equips this model with a male M14x1.5 piston rod thread for direct load coupling. End-of-stroke deceleration relies on a fixed NBR bumper, which is not a field-adjustable air cushion. For high kinetic energy loads, you should slow the approach speed or install an external shock absorber to prevent internal damage.
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.