The AirTAC AirTAC SDA40X30N 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 SDA40X30N is a double-acting, single-rod compact cylinder engineered to deliver a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. Its riveted assembly joins the barrel, rear cover, piston, and rod into a very short axial package, saving valuable mounting depth where a conventional round-body unit would not fit. The 40 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable service.
This specific SKU lacks a piston magnet, meaning it cannot host reed or electronic switches for position sensing. End-of-stroke energy is managed strictly by a fixed NBR bumper rather than an adjustable air cushion. With a 16 mm piston rod and a female M8x1.25 rod-end thread, buyers can compute a safe working load of roughly 377 N (about 60% of the 0.5 MPa push figure) or a vertical lift capacity near 32 kg with a 2:1 safety margin.
| Model | AirTAC SDA40X30N 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 onto machining centers. The 628.3 N extend force at 0.5 MPa provides rigid holding against cutting vibration without consuming excessive Z-axis height.
Drives mechanical arms to tuck corrugated box flaps prior to tape sealing. The 30 mm stroke moves quickly within tight conveyor frames, while the fixed NBR bumper absorbs the end stop.
Pushes molded plastic parts out of injection molds. Operating at 30-500 mm/s, the 16 mm rod withstands repetitive impact, though high-speed ejection may require external shock absorption.
When sizing this 40 mm bore unit, consider stepping down to the SDA32 if your application requires less thrust, as it provides 402.1 N of push force at 0.5 MPa. Conversely, if your load demands more power, the SDA50 offers 981.7 N at the same pressure. This SDA40X30N configuration specifies a 30 mm stroke, PT1/8 air port, female M8x1.25 rod thread, and no sensor magnet.
Note that a standard double-acting 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 without acting as a brake. If your machinery must maintain vertical load positioning without live pressure, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
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. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa, and the functional speed range is 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. If your application requires position sensing, you must select the -S option code variant. Additionally, end-of-stroke deceleration relies solely on a fixed NBR bumper, not an adjustable air cushion, so high-energy cycles may need 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.