The AirTAC AirTAC SDA63X25SH Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 25mm 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 SDA63X25SH is a double-acting, single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its short, riveted body assembly minimizes axial mounting depth, providing a distinct footprint advantage in tight machinery spaces where conventional round-body units cannot fit. The bore is hard-anodized and utilizes a two-way piston seal for reliable performance.
This specific configuration includes an -S piston magnet for direct mounting of AirTAC reed or electronic switches along the body grooves, and an -H fluororubber (FKM) seal variant for enhanced thermal and oil resistance. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Operating speed ranges from 30-500 mm/s.
| Model | AirTAC SDA63X25SH Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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. |
| ×25 | 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 short-stroke ejection pins in plastic injection molding machines, utilizing the 1558.6 N extend force to reliably strip finished parts from tight mold cavities.
Secures heavy cast iron engine blocks during CNC machining operations, where the compact riveted body saves critical Z-axis clearance without sacrificing holding power.
Actuates routing gates on high-speed packaging conveyors, rapidly pushing diverted pallets with a safe working load of 935 N while fitting within the narrow conveyor frame.
When sizing this actuator, stepping down to the SDA50 yields 981.7 N of push at 0.5 MPa, while stepping up to the SDA80 provides 2513.3 N. For the SDA63X25SH itself, the safe working load is approximately 935 N (about 60% of the 1558.6 N figure at 0.5 MPa), translating to a vertical lift capacity of roughly 79.4 kg with a 2:1 safety margin. Be aware that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a lock. To hold a load securely, an external rod lock or pilot-operated check valve is required. To order, confirm the 63 mm bore, 25 mm stroke, PT1/4 port, built-in magnet, male M18x1.5 rod thread, and FKM seals.
Quick checklist
At 0.5 MPa, the push force is 1558.6 N and the pull force is 1401.5 N. At 0.7 MPa, push is 2182.1 N and pull is 1962.2 N. The theoretical maximum push force is 318 kgf at 1.0 MPa. It features a 63 mm bore, 25 mm stroke, PT1/4 port, and a 20 mm piston rod.
It relies on a fixed NBR bumper at each end to decelerate the piston; it is not an adjustable air cushion, so external shock absorbers are recommended for high-energy cycles. The included -S magnet allows position detection using AirTAC reed or electronic switches mounted in the body grooves.
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