The AirTAC SDA63X40SH Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 40mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA63X40SH is a double-acting single-rod compact cylinder engineered for tight axial footprints. A riveted unibody design integrates the barrel, rear cover, piston, and rod to minimize mounting depth where standard round-body units fail to fit. At 63 mm bore, it generates 1558.6 N of push force and 1401.5 N of pull force at 0.5 MPa. This specific configuration includes an H designation, meaning it utilizes fluororubber (FKM) seals for enhanced thermal and oil resistance.
The unit features a hard-anodized bore and a two-way piston seal operating at speeds from 30 to 500 mm/s. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, preventing harsh impacts. Because this model carries the S option, a built-in piston magnet allows position detection via an AirTAC reed or electronic switch mounted in the body grooves. The 20 mm rod terminates in a female M10x1.5 thread, and air connections use a PT1/4 port.
| Model | AirTAC SDA63X40SH Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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).
Deploys a 79.4 kg mold ejection plate within a confined press cavity, leveraging the FKM seals to withstand ambient radiant heat from the tooling.
Drives a 40 mm stroke to tuck corrugated box flaps on a high-speed packaging line, absorbing end-stop impact via the fixed NBR bumper.
Secures aluminum housing samples under a 935 N clamping load, using the magnetic piston to trigger an electronic switch for cycle confirmation.
When sizing this 63 mm bore actuator, evaluate your force requirements carefully. Stepping down, the SDA50 provides 981.7 N of push at 0.5 MPa; stepping up, the SDA80 yields 2513.3 N. If your mechanism must maintain vertical position during air loss or valve centering, note that this cylinder will drift; the fixed bumper only decelerates the end of travel and acts as neither a lock nor a brake. You must integrate an external rod lock or pilot-operated check valve for secure load holding. To order, confirm the 63 mm bore, 40 mm stroke, PT1/4 port, S magnet, female M10x1.5 rod thread, and FKM seal option.
Quick checklist
This double-acting cylinder delivers 1558.6 N push and 1401.5 N pull at 0.5 MPa, and 2182.1 N push at 0.7 MPa. The theoretical maximum push force is 318 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 operational speed spans 30 to 500 mm/s.
It uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits; this is not an adjustable air cushion. Furthermore, it does not hold a load if air pressure drops or the valve centers, as the bumper is not a locking brake. For load holding, an external rod lock or pilot-operated check valve is required.
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