Airtac SDA Ultra Thin Cylinder SDA100X85B
The AirTAC Airtac SDA Ultra Thin Cylinder SDA100X85B is a genuine double-acting COMPACT (thin) air cylinder with a Ø100mm bore and 85mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ100 mm
- Stroke85 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM18×1.5 (F) / M26×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDA Ultra Thin Cylinder SDA100X85B
The AirTAC SDA100X85B is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial footprint. Utilizing a short riveted body assembly, it saves valuable mounting depth where a conventional round-body unit would be too long. At 100 mm bore, it generates a substantial 3927 N push force at 0.5 MPa, making it suitable for high-thrust operations.
This specific configuration includes a male M26x1.5 threaded piston rod (32 mm diameter) for secure mechanical load coupling. The unit relies on a fixed NBR bumper at each end to absorb end-stop impact rather than an adjustable air cushion. Because this SKU lacks the -S magnet option, it cannot support magnetic position sensing.
Airtac SDA Ultra Thin Cylinder SDA100X85B Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA100X85B |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M18×1.5 female / M26×1.5 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SDA100X85B
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SDA100X85B Is Used
Injection Mold Ejection
Provides the high 3927 N extend force needed to eject dense plastic parts from heavy injection molding machinery, utilizing the male M26x1.5 thread for rigid mold mounting.
Metal Stamping Press
Executes short 85 mm clamping strokes in automated metal stamping lines, where the fixed NBR bumper absorbs the rapid end-stop impact without requiring adjustable cushions.
Heavy Pallet Lifting
Lifts localized loads of up to 200.2 kg vertically in end-of-line packaging stations, taking advantage of the compact riveted body to minimize vertical machinery height.
Is the Airtac SDA Ultra Thin Cylinder SDA100X85B the Right Cylinder?
When sizing this actuator, evaluate your thrust requirements in both directions. If the 3927 N push at 0.5 MPa exceeds your needs, stepping down to the SDA80 provides 2513.3 N, which may offer a more compact and efficient solution. As the 100 mm bore is the largest in the SDA series, no larger standard option exists within this family; for forces beyond 801 kgf at 1.0 MPa, a different cylinder architecture would be required. The computed safe working load is approximately 2356 N (about 60% of the 0.5 MPa figure), allowing a vertical lift of roughly 200.2 kg with a 2:1 safety margin.
Ensure you specify the 100 mm bore, 85 mm stroke, PT3/8 port, and the male M26x1.5 rod thread when ordering. Note that a standard SDA does not hold its position if air pressure is lost or the valve is centered; the piston will drift. For applications requiring load holding on air loss, an external rod lock or pilot-operated check valve must be integrated into your pneumatic circuit.
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 SDA100X85B FAQ
The SDA100X85B delivers a push force of 3927 N and a pull force of 3524.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 5497.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa. It operates on filtered air between 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
No, this specific SKU does not include the -S magnet option, so it cannot trigger AirTAC reed or electronic switches. If position sensing is required, you must order the -S variant. Additionally, this model uses the -B male M26x1.5 rod end rather than the default female thread.
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