Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40 is a genuine double-acting COMPACT cylinder (Ø40mm bore) whose extend end-position is set by an external M12×1.25 adjustment screw. You can dial the stroke anywhere from 45 to 85 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke85 mm
- Adjustable range45–85 mm
- Adjuster threadM12×1.25
- 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 SDAJ40X85-40
The AirTAC SDAJ40X85-40 is a compact double-acting double-rod cylinder featuring an external adjustable extend stop. An M12x1.25 adjuster screw lets you dial the forward end-position anywhere between 45 and 85 mm directly on the machine, eliminating the need for shims or part swaps during changeovers.
Its short riveted body saves axial mounting depth where round-body or profile cylinders cannot fit. End shock is managed by a fixed NBR bumper that decelerates the stroke end; it is not an adjustable air cushion. Note this specific SKU lacks a piston magnet, so it cannot accept position switches. Operating speed ranges from 30-500 mm/s.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 85 mm |
| Adjustable range | 45 – 85 mm |
| Adjuster thread (R) | M12×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M8×1.25 F / M14×1.5 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. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SDAJ40X85-40
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | 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 SDAJ40X85-40 Is Used
Machining Clamp Tuning
Dial the M12x1.25 screw to set the extend stop between 45 and 85 mm, accommodating varying raw stock thicknesses on a milling line without swapping cylinders.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40 the Right Cylinder?
When sizing this 40 mm bore, evaluate both neighbours.
Choose this model if your fixture setup requires frequent on-site stroke tuning between 45 and 85 mm. It uses a PT1/8 port, a 16 mm rod with a female M8x1.25 thread, and no magnet. Remember that a plain cylinder does not hold its load on air loss or valve centring; the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve.
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 M12×1.25 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 SDAJ40X85-40 FAQ
Turning the R (M12x1.25) screw shortens the extend stroke by up to 40 mm, allowing the rod end to be set anywhere from 45 to 85 mm. It acts purely as a mechanical stop and does not alter the force output.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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