The AirTAC AirTAC SDA40X40SB Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 40mm 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 SDA40X40SB 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 assembly significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where space footprint is critical. The unit includes a built-in piston magnet for position detection.
This specific configuration features a 16 mm piston rod with a male M14x1.5 thread end for secure mechanical coupling to your load. The hard-anodized 40 mm bore operates on a PT1/8 port at speeds between 30 and 500 mm/s. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach or add external shock absorbers for high-energy cycles.
| Model | AirTAC SDA40X40SB Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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. |
| ×40 | 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 housings onto machining centers. The 628.3 N extend force provides rigid holding against spindle vibration, while the short 40 mm stroke keeps the fixture profile low.
Drives mechanical arms to tuck cardboard flaps on automated case sealing lines. The male M14x1.5 rod thread allows rigid attachment of folding blades, operating efficiently at mid-range speeds.
Actuates routing gates to sort heavy pallets on packaging conveyors. The space-saving riveted body fits within tight conveyor frame gaps, handling the 377 N safe working load effortlessly.
When sizing this unit, evaluate your neighbors: 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 SDA40X40SB, the safe working load is approximately 377 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. Confirm your ordering essentials: 40 mm bore, 40 mm stroke, PT1/8 port, male M14x1.5 rod thread, and the integrated magnet for sensors.
Remember that a standard compact cylinder will not hold a load if air pressure drops or the directional valve is centered; the piston will drift and the fixed bumper only decelerates near the stroke end. If your application requires static holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting 40 mm bore 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. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and supports speeds of 30-500 mm/s.
Yes, the built-in magnet (-S) is fully compatible with AirTAC reed or electronic switches mounted in the body grooves. Regarding end-of-stroke damping, it uses a fixed NBR bumper rather than an adjustable air cushion; for high kinetic energy loads, you should reduce the approach speed or install an external shock absorber.
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.