Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40 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 SDAJ80X55-40
The AirTAC SDAJ80X55-40 is a compact double-acting single-rod cylinder built for applications requiring a tuned extend endpoint. An external M20x1.5 adjuster screw lets you dial the forward stop down by up to 40 mm, yielding a usable extension range of 15 to 55 mm directly on the machine without swapping shims or parts. Retract remains a full stroke, and the output equals a standard SDA of this bore, delivering about 2513.3 N push at 0.5 MPa.
This 80 mm bore unit features a short riveted body that saves valuable axial mounting depth where a larger profile cylinder will not fit. 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 host reed or electronic switches; choose an -S variant if position sensing is required.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40 |
|---|---|
| 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 SDAJ80X55-40
| 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 SDAJ80X55-40 Is Used
Press Fit Depth Tuning
Dial the M20x1.5 screw to set a precise 25 mm press depth for inserting bearings, leveraging the 2513.3 N push force without changing mounting hardware.
Vertical Lift Stops
Lift payloads up to 128.1 kg safely with a 2:1 margin, adjusting the extend endpoint between 15 and 55 mm to accommodate varying package heights on the fly.
Compact Assembly Forming
Fit the short riveted body into tight machine cells to provide 2513.3 N of forming pressure, tweaking the stop position during product changeovers directly at the fixture.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40 the Right Cylinder?
When sizing this model, compare its 2513.3 N push at 0.5 MPa against adjacent bores: an SDAJ63 provides 1558.6 N, while an SDAJ100 delivers 3927 N. Based on the 0.5 MPa figure, a safe working load is roughly 1508 N (about 60 percent capacity), translating to a vertical lift capability of approximately 128.1 kg with a 2:1 safety margin. Choose the 80 mm bore if your payload sits in that sweet spot.
This cylinder is ideal for setups needing frequent on-machine stroke tuning or changeovers. Confirm your parameters: 80 mm bore, 55 mm maximum stroke, 40 mm adjust window, PT3/8 port, female rod-end thread, and no magnet. A plain SDAJ does not hold position or load when air is lost or the valve is centred; the bumper only decelerates near the end. For load 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 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 SDAJ80X55-40 FAQ
This 80 mm bore double-acting cylinder delivers 2513.3 N push and 2267.8 N pull at 0.5 MPa, 3518.6 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, proof pressure is 1.5 MPa, and speed ranges from 30-500 mm/s.
Turning the external M20x1.5 screw mechanically shortens the extend stop, giving a usable forward range of 15 to 55 mm without altering the 2513.3 N force. This specific SKU has no piston magnet and cannot take a switch; you must select an -S option to use AirTAC reed or electronic sensors.
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