Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20 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 65 to 85 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke85 mm
- Adjustable range65–85 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 SDAJ32X85-20
The AirTAC SDAJ32X85-20 is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. An M10x1.25 adjuster screw lets you dial the forward stroke down from the 85 mm maximum to 65 mm directly on the machine, eliminating the need for shims or part swaps during setup. Because the adjuster only sets the mechanical stop position, the output force remains identical to a standard SDA of this bore, delivering 402.1 N of push at 0.5 MPa.
The short riveted body saves valuable axial mounting depth where a larger profile cylinder will not fit. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be considered for high-energy cycles. This specific SKU lacks a piston magnet and cannot accept position switches; adding the -S option enables reed or electronic sensing.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 65 – 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 20 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 SDAJ32X85-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | Maximum stroke length in mm. |
| -20 | 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 SDAJ32X85-20 Is Used
Machining Clamp Tuning
Dial the extend stop from 65 to 85 mm to perfectly seat clamps on raw castings of varying widths without machining custom spacers.
Carton Flap Folding
Adjust the mechanical stop on the line to fold different box heights rapidly, relying on the 402.1 N push force to crease heavy corrugated board.
Press Fit Positioning
Set precise lower dead center for inserting bearings, using the fixed NBR bumper to absorb the end shock while hitting an exact 65 mm depth.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20 the Right Cylinder?
When sizing this 32 mm bore actuator, evaluate your force requirements against its neighbors. Dropping down to an SDAJ25 provides 245.4 N of push at 0.5 MPa, while stepping up to an SDAJ40 yields 628.3 N at the same pressure. This SDAJ32X85-20 sits comfortably in the middle, offering a safe working load of roughly 241 N (about 60% of its 402.1 N capacity) and a vertical lift capability of approximately 20.5 kg with a 2:1 safety margin.
Choose this model if your fixture requires frequent on-site stroke tuning across the 65 to 85 mm range. Confirm your setup needs a PT1/8 port, a female M6x1.0 rod-end thread, and a 12 mm piston rod. Note that a plain cylinder does not hold its load if air pressure drops or the valve centers—the piston will drift. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 65–85 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 SDAJ32X85-20 FAQ
At 0.5 MPa this 32 mm bore cylinder provides 402.1 N of push and 345.6 N of pull. At 0.7 MPa, push increases to 563 N and pull to 483.8 N. The theoretical maximum push force is 82 kgf at 1.0 MPa.
Turning the M10x1.25 R screw mechanically shortens the extend end position by up to 20 mm, allowing usable strokes between 65 and 85 mm. It sets the stop position without altering force, and it is not a mid-stroke lock.
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Standard models are processed and dispatched in 3-5 business days.
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