Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B is a genuine double-acting COMPACT cylinder (Ø32mm bore) whose extend end-position is set by an external M10×1.25 adjustment screw. You can dial the stroke anywhere from 45 to 85 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke85 mm
- Adjustable range45–85 mm
- Adjuster threadM10×1.25
- Port sizePT1/8
- 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 SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B
The AirTAC SDAJ32X85-40B is a compact double-acting single-rod cylinder featuring an external extend stop. By turning the R (M10x1.25) adjuster screw, you can shorten the outward stroke on-site across a 45 to 85 mm window without swapping shims or parts. Because the screw dictates the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 402.1 N of push at 0.5 MPa.
This configuration includes a male M10x1.25 piston rod thread and lacks a piston magnet, meaning it cannot host reed or electronic switches. The short riveted body minimizes axial mounting depth where space is tight. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 45 – 85 mm |
| Adjuster thread (R) | M10×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M6×1.0 F / M10×1.25 male (B) |
| 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) |
The adjustment screw shortens the extend stroke by up to 40 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | Maximum stroke length in mm. |
| -40 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B Is Used
Tooling Changeover
Dial the extend stop from 45 to 85 mm via the R screw to accommodate varying jig heights without machining new spacers.
Carton Flap Folding
Fine-tune the male M10x1.25 rod extension on the line to gently fold different box profiles using the fixed 402.1 N push force.
Trial Positioning
Safely test engagement depths on new assemblies, relying on the NBR bumper to absorb end-shock during iterative setup.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B the Right Cylinder?
When sizing this unit, verify if the 32 mm bore provides the correct thrust. Stepping down to an SDAJ25 yields 245.4 N of push at 0.5 MPa, while moving up to an SDAJ40 provides 628.3 N. Based on the 402.1 N output here, a safe working load is roughly 241 N (about 60 percent capacity), translating to a vertical lift capability of approximately 20.5 kg with a 2:1 safety margin.
This model suits operators needing frequent on-site stroke tuning during machine commissioning or product changeovers. Confirm your parameters: 32 mm bore, 85 mm maximum stroke, 40 mm adjust window, PT1/8 port, male M10x1.25 rod thread, and no magnet. Note that a plain cylinder drifts when air is lost or a valve centers; the bumper and adjuster only decelerate and set the stop, so add an external rod lock or pilot-operated check valve for load holding.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–85 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M10×1.25 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40B FAQ
At 0.5 MPa it provides 402.1 N push and 345.6 N pull. At 0.7 MPa it provides 563 N push and 483.8 N pull. The theoretical maximum push is 82 kgf at 1.0 MPa.
Turning the external M10x1.25 screw shortens the extend stroke anywhere between 45 and 85 mm. The screw acts only as a mechanical stop and does not lock the piston; you need an external rod lock or pilot-operated check valve to hold a load without live air pressure.
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