The AirTAC AirTAC SDA40X75BH Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 75mm 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 SDA40X75BH 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. This specific SKU is configured with a male M14x1.5 piston rod end for robust mechanical coupling, alongside high-temperature fluororubber (FKM) seals that resist thermal degradation better than standard NBR. Its short riveted body drastically reduces axial mounting depth compared to round-body alternatives, saving valuable machine footprint.
The bore inner wall is hard-anodized for longevity, and end-of-travel deceleration is handled strictly by fixed NBR bumpers rather than adjustable air cushions. Because this configuration lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches. Operating efficiently between 30-500 mm/s, the 16 mm rod and PT1/8 port provide reliable airflow for consistent cycling.
| Model | AirTAC SDA40X75BH Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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. |
| ×75 | 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, using the male M14x1.5 rod to thread directly into heavy-duty custom fixture jaws.
Actuates a 75 mm stroke applicator head near heat zones where the FKM seals prevent premature degradation, pushing carton flaps at 628.3 N.
Ejects formed sheet metal brackets from shallow dies, utilizing the compact riveted body to fit within tight press side-window clearances.
When sizing this actuator, evaluate your force margins carefully: stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. At 628.3 N, this 40 mm bore achieves a safe working load of roughly 377 N (about 60 percent capacity) and can vertically lift approximately 32 kg with a 2:1 safety margin. If your mechanism must maintain vertical position during air loss or valve centering, note that a plain cylinder will drift; the fixed bumpers only decelerate near stroke end and do not act as a lock, so an external rod lock or pilot-operated check valve is required for holding.
Confirm your ordering essentials: 40 mm bore, 75 mm stroke, PT1/8 port, male M14x1.5 rod thread (B), FKM seals (H), and no sensor magnet. For high-speed cycling approaching 500 mm/s, the fixed bumpers cannot be field-tuned, so adding an external shock absorber or slowing the approach speed is strongly advised to prevent end-cap damage.
Quick checklist
At 0.5 MPa, this double-acting 40 mm bore cylinder provides 628.3 N of push force and 527.8 N of pull force. At 0.7 MPa, push increases to 879.6 N and pull to 738.9 N. The theoretical maximum push is 128 kgf at 1.0 MPa, which is the maximum operating pressure.
No. This model uses fixed NBR bumpers at each end to decelerate the stroke, not an adjustable air cushion, so high-speed applications may need external shock absorbers. Additionally, this SKU lacks the -S magnet, meaning it cannot support reed or electronic switches without changing to an S-designated variant.
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.