The AirTAC AirTAC SDA40X30B 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 SDA40X30B 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 design integrates the barrel, rear cover, piston, and rod into a highly shortened assembly, saving valuable axial mounting depth in tight machinery footprints where standard round-body units fail to fit.
This specific SKU features a male M14x1.5 piston rod thread (denoted by the B option) for secure mechanical coupling to your tooling, alongside a 16 mm rod diameter and PT1/8 porting. The bore is hard-anodized for longevity, while end-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA40X30B 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).
Drives ejection pins on a 40-ton injection molding press, utilizing the 30 mm stroke and male M14x1.5 rod to push finished plastic parts out of the cavity safely.
Actuates a diverting blade on a logistics sorting line, using the 628.3 N extend force to push cartons weighing up to 32 kg onto secondary chutes.
Secures printed circuit board panels inside a CNC routing fixture, where the compact riveted body minimizes Z-axis height and avoids interfering with the spindle.
When sizing this actuator, 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 SDA40X30B, the computed safe working load is approximately 377 N (about 60% of the 628.3 N figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. To finalize your order, confirm the 40 mm bore, 30 mm stroke, PT1/8 port, male M14x1.5 rod thread, and note this unit lacks a piston magnet. If your application must hold a load without live pressure, be aware the piston will drift on air loss; the fixed bumper only decelerates near stroke end and acts as neither a lock nor a brake, requiring an external rod lock or pilot-operated check valve for secure positioning.
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. It operates between 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. The -S variant is required for sensing. Additionally, end-stop deceleration relies on a fixed NBR bumper, which is not an adjustable air cushion; for high-speed cycling, add 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.