Airtac SDA Ultra Thin Cylinder SDA100X85SB
The AirTAC Airtac SDA Ultra Thin Cylinder SDA100X85SB 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 SDA100X85SB
The AirTAC SDA100X85SB is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial envelope. Utilizing a riveted body assembly, it conserves valuable machine footprint depth where conventional round-body units cannot fit. At 100 mm bore, this specific configuration yields 3927 N of push force and 3524.9 N of pull force at 0.5 MPa, extending to a maximum theoretical output of 801 kgf at 1.0 MPa.
This model includes the -S option for a built-in piston magnet, enabling position detection via an AirTAC reed or electronic switch mounted in the body grooves. The -B option specifies a male M26x1.5 threaded piston rod end (Ø32 mm) for secure mechanical load coupling. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should incorporate external shock absorbers for high-energy 85 mm strokes.
Airtac SDA Ultra Thin Cylinder SDA100X85SB Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA100X85SB |
|---|---|
| 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 SDA100X85SB
| 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 SDA100X85SB Is Used
Automotive Press Ejection
Ejects heavy stamped metal panels from a 400-ton press bed, utilizing the 3927 N push force to break the part free within a tight 85 mm stroke distance.
Palletizer Flap Folding
Folds corrugated box flaps on a high-speed end-of-line palletizer, where the male M26x1.5 rod end secures a custom folding arm and the compact body saves conveyor clearance.
Heavy Steel Plate Alignment
Squares thick steel plates on a roller conveyor prior to welding, using the 200.2 kg vertical lift margin to shift heavy stock into precise alignment.
Is the Airtac SDA Ultra Thin Cylinder SDA100X85SB the Right Cylinder?
Selecting this 100 mm bore unit implies a substantial load requirement, delivering a safe working load of roughly 2356 N (about 60% of its 3927 N push force at 0.5 MPa) or a vertical lift capacity of approximately 200.2 kg with a 2:1 safety margin. If your application requires less force, stepping down to the SDA80 provides 2513.3 N at 0.5 MPa; as the largest standard SDA size, there is no larger bore available in this series. Ensure your ordering essentials match the SDA100X85SB code: 100 mm bore, 85 mm stroke, PT3/8 port, male M26x1.5 rod thread, and a magnetic piston.
Because this is a double-acting pneumatic actuator, it will not hold a load if air pressure is lost or the control valve is centered—the piston will drift. The fixed NBR bumper only decelerates the rod near the stroke endpoints and does not function as a locking brake. For vertical or suspended loads that must be held without live pressure, integrate an external rod lock or a pilot-operated check valve into your 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 SDA100X85SB FAQ
This 100 mm bore double-acting cylinder generates 3927 N push and 3524.9 N pull at 0.5 MPa, and 5497.8 N push at 0.7 MPa. The theoretical maximum output is 801 kgf at 1.0 MPa. It operates on filtered air between 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
It includes a built-in piston magnet (-S) for use with AirTAC reed or electronic switches, but it does not have adjustable air cushions. End-stop deceleration relies solely on a fixed NBR bumper. For an 85 mm stroke at high speeds, you should add external shock absorbers to prevent impact damage.
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