The AirTAC AirTAC SDA40X10BH Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 10mm 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 SDA40X10BH is a double-acting, single-rod compact cylinder engineered for tight axial spaces. A riveted unibody integrates the barrel, rear cover, and piston to minimize mounting depth, yielding a hard-anodized bore that produces 628.3 N of push force at 0.5 MPa. This specific SKU includes an FKM fluororubber seal for heightened thermal and oil resistance, operating reliably across temperatures from -20 to +70 C.
Equipped with a male M14x1.5 piston rod thread, it provides a robust mechanical coupling to your payload. The 10 mm stroke is managed by a fixed NBR bumper at each end that decelerates the piston near travel limits. Because this configuration lacks the -S magnet option, it cannot host reed or electronic switches. Operating at speeds of 30-500 mm/s via PT1/8 ports, it handles a safe working load of roughly 377 N or a 32 kg vertical lift with a 2:1 margin.
| Model | AirTAC SDA40X10BH Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 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. |
| ×10 | 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 workpieces inside CNC machining centers where the 628.3 N extend force easily overcomes cutting vibration and the 10 mm stroke rapidly engages the fixture.
Pivots corrugated box flaps on high-speed packaging lines, leveraging the short 10 mm stroke and FKM seals to withstand dusty, lubricated environments.
Pushes molded plastic parts out of injection molds, using the male M14x1.5 rod end to thread directly into a custom ejector plate for secure load coupling.
When sizing this actuator, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while moving up to the SDA50 increases that output to 981.7 N. The 40 mm bore here offers a balanced middle ground for moderate automation tasks. Confirm your ordering essentials: 40 mm bore, 10 mm stroke, PT1/8 port, male M14x1.5 rod thread, and FKM seals. Remember that a standard compact cylinder drifts if air pressure drops or the valve centers; the fixed bumper only slows the end of travel and acts as neither a lock nor a brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa this 40 mm bore cylinder outputs 628.3 N of push and 527.8 N of pull. At 0.7 MPa, push increases to 879.6 N. The theoretical maximum push is 128 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
It relies on a fixed NBR bumper to decelerate the piston at each end, which is not an adjustable air cushion. If your cycle runs at high speeds, add an external shock absorber. Furthermore, it cannot hold position unpowered; you must use a pilot-operated check valve or external rod lock to prevent drift.
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