Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B 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 SDAJ32X85-20B
The AirTAC SDAJ32X85-20B is a double-acting compact cylinder featuring an external extend stop. An M10x1.25 adjuster screw lets you dial the outward stroke down by up to 20 mm directly on the machine, yielding a usable forward range of 65 to 85 mm without swapping shims or parts. Retract remains full, and the adjuster strictly sets the mechanical stop without altering pneumatic area.
Output matches a standard 32 mm bore SDA, generating 402.1 N of push at 0.5 MPa. The short riveted body minimizes axial mounting depth where space is tight, while the male M10x1.25 piston rod (specified by the -B option) handles direct tooling attachment. End shock is managed solely by a fixed NBR bumper, which decelerates the stroke end but is not an adjustable air cushion.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B |
|---|---|
| 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. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B
| 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 SDAJ32X85-20B Is Used
Tooling Depth Calibration
Dial the M10x1.25 screw to set the extend stop between 65 and 85 mm, allowing precise depth calibration for pressing operations without machining new spacers.
Quick Format Changeover
Adjust the outward reach on-site during packaging line format changes, utilizing the 402.1 N push force to push varied carton sizes accurately.
Trial Positioning Stops
Fine-tune the end position during prototype assembly stations, relying on the fixed NBR bumper to absorb the impact of each test cycle.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-20B the Right Cylinder?
When sizing this unit, verify your thrust requirements both ways: stepping down to a 25 mm bore yields 245.4 N of push at 0.5 MPa, whereas moving up to a 40 mm bore provides 628.3 N. This 32 mm model strikes a middle ground, delivering a safe working load of roughly 241 N (about 60% of its 402.1 N capacity) and a vertical lift capability near 20.5 kg with a 2:1 safety margin.
Choose this configuration if your fixture requires frequent on-site stroke tuning during changeovers. Confirm the 32 mm bore, 85 mm maximum stroke, 20 mm adjust window, PT1/8 port, and the male M10x1.25 rod end. Note that a plain cylinder drifts when air is lost or a valve centers; the bumper and mechanical stop do not lock the load, so integrate an external rod lock or pilot-operated check valve for holding requirements.
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 SDAJ32X85-20B FAQ
At 0.5 MPa it provides 402.1 N push and 345.6 N pull. At 0.7 MPa it provides 563 N push and 483.8 N pull. The theoretical maximum push is 82 kgf at 1.0 MPa.
The R (M10x1.25) screw shortens the extend stop from the 85 mm maximum down to 65 mm. The -B option denotes a male M10x1.25 piston rod end. This SKU lacks a piston magnet, so it cannot accept reed or electronic switches without the -S option.
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