Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20 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 70 to 90 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke90 mm
- Adjustable range70–90 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 SDAJ32X90-20
The AirTAC SDAJ32X90-20 is a compact double-acting double-rod cylinder built for applications requiring exact extend positioning. An external M10x1.25 adjuster screw lets you dial the forward stop from 70 to 90 mm directly on the machine, eliminating the need for shims or part swaps during changeovers.
This thin riveted-body design saves valuable axial mounting depth where larger profile cylinders cannot fit. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic sensing without upgrading to the -S variant.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 90 mm |
| Adjustable range | 70 – 90 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. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
SDAJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod SDA push of the same bore. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SDAJ32X90-20 Is Used
Tooling Changeover
Dial the extend stop between 70 and 90 mm via the M10x1.25 screw to accommodate different part heights during production line changeovers without swapping cylinders.
Bending Stop Blocks
Use the compact riveted body to fit into tight press enclosures, setting a precise metal bending depth with the mechanical stop rather than relying on complex shims.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-20 the Right Cylinder?
Choosing this 32 mm bore provides a robust middle ground for mid-force tasks. Sizing upward to the SDAJ40 yields 628.3 N at 0.5 MPa, offering substantially more power but requiring a larger mounting footprint. The SDAJ32X90-20 is ideal for operators needing on-machine stroke tuning within a 70-90 mm window, utilizing a PT1/8 port and a female M6x1.0 rod-end thread.
Keep in mind that a plain SDAJ does not hold position or load when air is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke near its end, and the R screw acts as a mechanical stop, not a lock. For secure load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 70–90 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 SDAJ32X90-20 FAQ
At 0.7 MPa, push increases to 563 N and pull to 483.8 N. The theoretical maximum push is 82 kgf at 1.0 MPa.
Turning the external R (M10x1.25) screw mechanically shortens the extend stroke by up to 20 mm, giving a usable range of 70 to 90 mm. The screw only sets the stop position and does not function as a mid-stroke lock, so the cylinder cannot hold a load without live air pressure.
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Related AirTAC SDAJ Cylinders
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