Airtac SDA Ultra Thin Cylinder SDA100X85
The AirTAC Airtac SDA Ultra Thin Cylinder SDA100X85 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 SDA100X85
The AirTAC SDA100X85 is a double-acting single-rod compact cylinder engineered to deliver a substantial 3927 N push force at 0.5 MPa. By utilizing a short riveted body that permanently joins the barrel, rear cover, piston, and rod, this unit drastically reduces axial mounting depth compared to conventional round-body actuators. This space-saving footprint is critical when integrating high-force automation into tight machine envelopes.
This specific configuration features a 100 mm bore, an 85 mm stroke, and a robust 32 mm piston rod. End-stopping is handled by a fixed NBR bumper which decelerates the load near stroke completion; it is not an adjustable air cushion, so high-energy cycles may require an external shock absorber. Because this SKU lacks the -S option, it has no piston magnet and cannot host magnetic reed or electronic switches.
Airtac SDA Ultra Thin Cylinder SDA100X85 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA100X85 |
|---|---|
| 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 SDA100X85
| 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 SDA100X85 Is Used
Stamping Press Ejection
Provides the heavy push force needed to eject thick metal blanks from progressive stamping dies where short axial mounting depth is required.
Palletizer Lift Station
Lifts heavy layer-forming platens in end-of-line palletizing machinery, safely handling loads near the 200 kg vertical lift threshold.
Heavy Carton Sealing
Drives the high-pressure sealing heads on industrial carton sealing lines, ensuring tight folds on large, heavy-gauge corrugated boxes.
Is the Airtac SDA Ultra Thin Cylinder SDA100X85 the Right Cylinder?
Selecting this 100 mm bore actuator provides a theoretical maximum push of 801 kgf at 1.0 MPa. If your application requires less force, stepping down to the SDA80 yields 2513.3 N at 0.5 MPa, whereas this SDA100X85 provides 3927 N at the same pressure. When ordering, confirm the 85 mm stroke, PT3/8 port size, female M18x1.5 rod-end thread, and the absence of a sensor magnet. A 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.
Keep in mind that a standard double-acting cylinder does not hold its position if air pressure drops or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates near the stroke end without acting as a mechanical lock. If your machine requires strict position holding under load loss, you must integrate an external rod lock or a pilot-operated check valve into the 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 SDA100X85 FAQ
This double-acting cylinder generates a push of 3927 N and a pull of 3524.9 N at 0.5 MPa. At 0.7 MPa, push increases to 5497.8 N. The theoretical maximum push is 801 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds of 30-500 mm/s.
No, this specific SKU does not include the -S option, meaning it lacks a piston magnet and cannot trigger reed or electronic switches. Additionally, end stopping relies on a fixed NBR bumper rather than an adjustable air cushion, so external shock absorbers should be added for high-speed impacts.
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