Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40S
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40S 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 45 to 85 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke85 mm
- Adjustable range45–85 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 SDAJ32X85-40S
The AirTAC SDAJ32X85-40S is a compact double-acting double-rod cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you can dial the extend position anywhere between 45 and 85 mm directly on your machine, eliminating the need for shims or part swaps. Retract travel remains full length.
Its short riveted body saves valuable axial mounting depth where larger profile or round-body cylinders will not fit. The unit relies on a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Because this configuration includes the -S option, a built-in piston magnet is present, allowing you to mount AirTAC reed or electronic switches directly into the body sensor grooves for position feedback.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40S Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 45 – 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 40 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 SDAJ32X85-40S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | 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 SDAJ32X85-40S Is Used
Tooling Changeover Stations
Dial the extend stop from 85 mm down to 45 mm via the R screw to accommodate different fixture heights during quick tooling changeovers without machining new spacers.
Trial Positioning for Forming
Use the 40 mm adjustment window to fine-tune the extend endpoint during prototype metal forming runs, finding the exact 45 to 85 mm stroke before locking the final position.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-40S the Right Cylinder?
When sizing this 32 mm bore, evaluate your force requirements both ways.
Choose this specific model if your application requires frequent on-machine stroke tuning between 45 and 85 mm during setup or changeovers. Confirm your porting matches the bore-fixed PT1/8 thread, and note the female M6x1.0 rod-end thread. The -S magnet enables switch sensing, but remember 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, integrate 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 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 SDAJ32X85-40S 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. The external adjuster does not change these force values.
Turning the M10x1.25 adjuster screw shortens the extend stroke by up to 40 mm, allowing you to set the endpoint anywhere between 45 and 85 mm. The -S option includes a built-in piston magnet for use with AirTAC reed or electronic switches for end-position sensing.
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