The AirTAC AirTAC SDA40X35SH Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 35mm 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 SDA40X35SH is a double-acting, single-rod compact cylinder engineered with a 40 mm bore and 35 mm stroke. Its riveted assembly significantly reduces axial mounting depth compared to conventional round-body units, yielding a space-efficient footprint for tight machine layouts. Equipped with a fluororubber (FKM) seal, this variant sustains higher temperature and oil resistance. 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 direct compatibility with AirTAC reed or electronic switches via the body grooves, plus a male M14x1.5 threaded rod end for secure load coupling. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. Operating speeds span 30-500 mm/s through its PT1/8 port.
| Model | AirTAC SDA40X35SH Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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. |
| ×35 | 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 workpieces inside machining centers, utilizing the 628.3 N extend force to hold parts rigidly against cutting forces without excessive bulk.
Drives mechanical arms to tuck corrugated box flaps prior to sealing, where the 35 mm stroke and compact depth fit neatly within narrow conveyor side frames.
Moves fluid nozzle assemblies over reagent bottles, benefiting from the FKM seals to resist chemical vapors and the precise magnetic switching for repeatable fills.
When sizing this 40 mm bore unit, verify your force requirements against its neighbours. Stepping down, the SDA32 provides 402.1 N of push at 0.5 MPa; stepping up, the SDA50 yields 981.7 N at the same pressure. With a safe working load around 377 N (roughly 60% of the 628.3 N output), this model can vertically lift approximately 32 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder drifts when air pressure drops or the valve centers—the fixed bumper only decelerates the piston near stroke end and does not function as a locking brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve. To order, confirm the 40 mm bore, 35 mm stroke, PT1/8 port, male M14x1.5 rod thread, the S magnet, and the H FKM seal option.
Quick checklist
This 40 mm bore double-acting cylinder outputs 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, with a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-energy cycles you should add an external shock absorber. Additionally, it will not hold a load if air is lost—you must add a pilot-operated check valve or rod lock for fail-safe suspension.
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