Airtac SDA Ultra Thin Cylinder SDA63X25
The AirTAC Airtac SDA Ultra Thin Cylinder SDA63X25 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.
- BoreØ63 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDA Ultra Thin Cylinder SDA63X25
The AirTAC SDA63X25 is a double-acting single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly shortened unit, drastically reducing axial mounting depth where a traditional round-body actuator would be too intrusive. The 63 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable pneumatic performance.
This specific configuration moves a 25 mm stroke via a 20 mm piston rod and PT1/4 air port. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent impact wear. This SKU is supplied without a piston magnet, so it cannot host magnetic position switches.
Airtac SDA Ultra Thin Cylinder SDA63X25 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA63X25 |
|---|---|
| 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).
Theoretical Output Force (Ø63mm)
| 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.
Model Code: Airtac SDA Ultra Thin Cylinder SDA63X25
| 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).
Where the Airtac SDA Ultra Thin Cylinder SDA63X25 Is Used
Injection Mold Ejection
Drives short-stroke ejector pins on plastic injection molding machines, utilizing the 1558.6 N extend force to break parts free from tight tooling cavities.
Heavy Package Diversion
Powers a pop-up sorting arm on a logistics conveyor belt, pushing dense cartons onto adjacent chutes where a deeper profile cylinder would congest the frame.
CNC Fixture Clamping
Secures heavy cast iron engine blocks during CNC machining operations, providing the necessary 1401.5 N retract force to maintain rigid workholding against cutting vibrations.
Is the Airtac SDA Ultra Thin Cylinder SDA63X25 the Right Cylinder?
When sizing this actuator, evaluate your force requirements bidirectionally: 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 at the same pressure. Based on the 1558.6 N output, the computed safe working load is approximately 935 N (60% capacity), translating to a vertical lift capability of about 79.4 kg with a 2:1 safety margin. To finalize your order, confirm the 63 mm bore, 25 mm stroke, PT1/4 port, female M10x1.5 rod-end thread, and the absence of the magnet option.
Keep in mind that a standard double-acting cylinder cannot hold a load if air pressure drops or the directional valve centers. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a mechanical lock. If your application demands strict position holding on loss of pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA63X25 FAQ
At 0.5 MPa, the push force is 1558.6 N and the pull force is 1401.5 N. At 0.7 MPa, the push force is 2182.1 N. The theoretical maximum push force is 318 kgf at 1.0 MPa, which is the maximum operating pressure.
No, this specific SKU lacks a piston magnet, so it cannot host reed or electronic switches. You would need the SDA63X25S variant for position detection. Additionally, end-stop deceleration is handled by a fixed NBR bumper, not an adjustable air cushion.
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