Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S is a genuine double-acting COMPACT cylinder (Ø80mm bore) whose extend end-position is set by an external M20×1.5 adjustment screw. You can dial the stroke anywhere from 15 to 55 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke55 mm
- Adjustable range15–55 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S
The AirTAC SDAJ80X55-40S is a double-acting compact cylinder featuring an external M20x1.5 adjustment screw that dials the extend stop directly on your machine. You can tune the outward stroke anywhere between 15 and 55 mm without swapping shims or parts, while the retract movement remains full length. Because the adjuster sets the mechanical stop rather than altering the piston area, output force equals a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
Its short riveted body drastically reduces axial mounting depth, fitting where larger profile cylinders cannot. The unit relies on a fixed NBR bumper to decelerate the stroke end, meaning it is not an adjustable air cushion. Equipped with a built-in piston magnet (-S), this model supports AirTAC reed or electronic solid-state switches for precise end-position sensing.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 55 mm |
| Adjustable range | 15 – 55 mm |
| Adjuster thread (R) | M20×1.5 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M14×1.5 F / M22×1.5 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. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S Is Used
Press Fit Depth Tuning
Dial the extend stop from 15 to 55 mm on the fly to set precise bearing press depths during short-run changeovers, utilizing the 2513.3 N push force.
Variable Length Diverter
Adjust the diverter arm reach on the packaging line without changing hardware, accommodating different carton widths quickly and safely.
Z-Axis Trial Positioning
Fine-tune the vertical lowering stop during prototype assembly to test clamping heights before locking in the final mechanical position.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S the Right Cylinder?
When sizing this 80 mm bore, stepping down to an SDAJ63 yields 1558.6 N of push at 0.5 MPa, whereas stepping up to an SDAJ100 provides 3927 N. This SDAJ80X55-40S strikes a middle ground, offering a safe working load of roughly 1508 N (about 60 percent of its 0.5 MPa push figure) and a vertical lift capacity of approximately 128.1 kg with a 2:1 safety margin. It is ideal for setups requiring frequent on-machine stroke tuning during changeovers.
Confirm the 80 mm bore, 55 mm maximum stroke, 40 mm adjust window, and PT3/8 port. The -S magnet and female M14x1.5 rod-end thread are standard here. Remember that a plain cylinder does not hold its load on air loss or when a valve is centred; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 15–55 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 M20×1.5 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40S FAQ
At 0.5 MPa it provides 2513.3 N push and 2267.8 N pull. At 0.7 MPa it provides 3518.6 N push and 3175 N pull. The theoretical maximum push is 513 kgf at 1.0 MPa.
The M20x1.5 screw shortens the extend stop by up to 40 mm, giving a usable range of 15-55 mm without changing force. The included -S magnet works with AirTAC reed or electronic switches for position sensing.
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Standard models usually ship in 3-4 days.
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