Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20S
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20S 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 65 to 85 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke85 mm
- Adjustable range65–85 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 SDAJ32X85-20S
The AirTAC SDAJ32X85-20S is a compact double-acting double-rod cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you shorten the forward stroke on-site across a 65 to 85 mm window without swapping shims or parts.
Its short riveted body drastically cuts axial mounting depth where larger profile or round-body units cannot fit. The unit includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. End-of-travel shock is handled by a fixed NBR bumper which decelerates the piston, though it is not an adjustable air cushion or a locking brake.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20S Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 65 – 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 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 SDAJ32X85-20S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 SDAJ32X85-20S Is Used
Tooling Changeover
Dial the extend stop from 65 to 85 mm during machine changeovers to accommodate varying part heights without machining new spacers.
Trial Positioning
Ideal for prototype rigs where the exact extend target is unknown, letting the M10x1.25 screw fine-tune the stop during testing.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20S the Right Cylinder?
Choose this specific unit if your machine commissioning requires precise on-site stroke tuning between 65 and 85 mm.
Confirm the 32 mm bore, 85 mm maximum stroke, 20 mm adjust window, and PT1/8 port. The -S code ensures you have the magnet for position sensing, and the female M6x1.0 rod-end thread is standard (male M10x1.25 optional with a B code). Remember that a plain cylinder does not hold a load if air pressure drops or the valve centres; the piston drifts and the fixed bumper only decelerates near the end. 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 65–85 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 SDAJ32X85-20S FAQ
The theoretical maximum push is 82 kgf at 1.0 MPa.
The M10x1.25 screw shortens the forward stroke by up to 20 mm, yielding an adjustable extend range of 65 to 85 mm; retract remains full. The -S code denotes a built-in piston magnet compatible with AirTAC reed or electronic solid-state switches.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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