Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40B 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 SDAJ40X85-40B
The AirTAC SDAJ40X85-40B is a compact double-acting double-rod cylinder featuring an external extend stop. An M12x1.25 adjuster screw lets you dial the outward stroke anywhere between 45 and 85 mm directly at the machine, avoiding part swaps or shims during changeovers. The short riveted body saves valuable axial mounting depth where a longer conventional unit would fail to fit.
This specific SKU uses a male M14x1.5 rod thread and lacks a piston magnet, meaning it cannot host reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40B |
|---|---|
| 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 SDAJ40X85-40B
| 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 SDAJ40X85-40B Is Used
Machining Clamp Depth
Dial the extend stop from 45 to 85 mm to accommodate varying raw casting widths on a milling fixture without machining custom spacers.
Tiered Palletising
Fine-tune the lower pressing position for distinct pallet layer heights, using the male M14x1.5 thread to secure a custom positioning tool.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-40B the Right Cylinder?
When sizing this 40 mm bore, look at both adjacent options.
Choose this configuration if your fixture requires frequent on-site stroke tuning across a 40 mm window. Confirm your setup needs the male M14x1.5 rod end and the PT1/8 port. Remember that a plain cylinder drifts when air is lost or the valve is centred; the fixed NBR bumper only decelerates the end of travel and does not function as a lock. For secure 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 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 SDAJ40X85-40B FAQ
The theoretical maximum push force is 128 kgf at 1.0 MPa.
Turning the M12x1.25 adjuster screw shortens the extend end-position by up to 40 mm, giving a usable outward range of 45 to 85 mm. The screw is strictly a mechanical stop and not a mid-stroke lock; the cylinder will drift on air loss, so use an external rod lock for load holding.
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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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