Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B 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 55 to 85 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke85 mm
- Adjustable range55–85 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 SDAJ40X85-30B
The AirTAC SDAJ40X85-30B is a compact double-acting double-rod cylinder featuring an on-site adjustable extend stop. Turning the external M12x1.25 adjuster screw lets you dial the outward stroke anywhere between 55 and 85 mm, eliminating the need for shims or part swaps during machine commissioning.
This thin riveted-body design saves valuable axial mounting depth where larger profile cylinders cannot fit. The unit features a male M14x1.5 piston rod thread and a PT1/8 port. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 85 mm |
| Adjustable range | 55 – 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 30 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 SDAJ40X85-30B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×85 | Maximum stroke length in mm. |
| -30 | 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 SDAJ40X85-30B Is Used
Variable-Length Diverter
Tune the extend stop on-site to deflect different package sizes on a packaging line, relying on the fixed NBR bumper to absorb the end shock.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B the Right Cylinder?
Stepping down to an SDAJ32 yields 402.1 N, which may be insufficient for heavier tooling, while stepping up to an SDAJ50 provides 981.7 N for high-mass payloads.
This model is ideal for setups requiring frequent changeovers or trial positioning. Confirm your requirements for a 40 mm bore, 85 mm maximum stroke, 30 mm adjustment window, PT1/8 port, male M14x1.5 rod, and no magnet. Remember that a plain double-acting cylinder drifts when air is lost or the valve is centered; the fixed bumper only decelerates near the end of travel and does not lock the load. For secure 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 55–85 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 SDAJ40X85-30B FAQ
This 40 mm bore cylinder has a PT1/8 port.
The external M12x1.25 screw mechanically shortens the extend stroke from the 85 mm maximum down to 55 mm. It sets the stop position without changing the force, but it is not a mid-stroke lock; the cylinder will drift if air pressure is lost.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
Request a Quote for Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X85-30B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.