Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40 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 10 to 50 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke50 mm
- Adjustable range10–50 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40
The AirTAC SDAJ80X50-40 is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. An M20x1.5 adjuster screw lets you dial the extend position anywhere between 10 and 50 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. Retract travel remains full length. This unit delivers a push force of 2513.3 N at 0.5 MPa, exactly matching a standard SDA of this bore because the adjuster sets the mechanical stop, not the piston area.
Its short riveted body drastically saves axial mounting depth where a larger profile cylinder will not fit. End-of-stroke 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 support reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 50 mm |
| Adjustable range | 10 – 50 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 SDAJ80X50-40
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SDAJ80X50-40 Is Used
Machining Clamp Depth
Dial the extend stop from 10 to 50 mm via the M20x1.5 screw to set exact clamping depth on raw castings of varying widths without swapping hardware.
Carton Flap Folding
Fine-tune the 2513.3 N push stroke on the fly to fold different box profiles accurately during rapid production changeovers.
Pallet Positioning
Adjust the extend stop mechanically to set precise vertical pressing heights for varied pallet loads, relying on the fixed NBR bumper for end deceleration.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40 the Right Cylinder?
When sizing this 80 mm bore, compare it both ways: stepping down to an SDAJ63 yields 1558.6 N push at 0.5 MPa, while stepping up to an SDAJ100 provides 3927 N. The SDAJ80X50-40 provides a robust 2513.3 N at 0.5 MPa, offering a safe working load of roughly 1508 N (about 60 percent of capacity) and a vertical lift capability of approximately 128.1 kg with a 2:1 safety margin.
Choose this model if your fixture requires frequent on-site stroke tuning across a 10 to 50 mm window. Confirm your porting matches the bore-fixed PT3/8 thread and that you have a female M14x1.5 rod-end thread. Because this SKU has no magnet, sensing is unavailable unless you specify the -S option. A plain cylinder does not hold a load if air pressure drops or the valve centers; the bumper only decelerates the stroke 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 10–50 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 SDAJ80X50-40 FAQ
At 0.5 MPa this 80 mm bore cylinder 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 force is 513 kgf at 1.0 MPa.
Turning the external M20x1.5 screw shortens the extend end position by up to 40 mm, giving a usable extend range of 10 to 50 mm. The screw acts strictly as a mechanical stop and does not alter the output force or lock the piston mid-stroke.
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