Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40B 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 SDAJ80X55-40B
The AirTAC SDAJ80X55-40B is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, you can dial the forward stroke down from its 55 mm maximum to as low as 15 mm directly on the machine. Because the adjuster only sets the mechanical stop and not the piston area, force remains identical to a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
This 80 mm bore variant features a male-threaded piston rod (M22x1.5) for secure tool mounting and a PT3/8 air port. Its short riveted body saves axial mounting depth where a round-body or profile cylinder will not fit. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion or a locking device.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40B |
|---|---|
| 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 SDAJ80X55-40B
| 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 SDAJ80X55-40B Is Used
Press Fit Depth Tuning
Dial in the exact 15 to 55 mm insertion depth for bearings on a machining line without swapping shims, leveraging the 2513.3 N push force at 0.5 MPa.
Variable Flap Folding
Adjust the mechanical stop on-site to accommodate different carton heights, using the male M22x1.5 rod to securely mount custom folding blades.
Vertical Lift Stops
Set precise upper travel limits for a 128.1 kg vertical lift payload with a 2:1 safety margin, knowing the fixed NBR bumper will absorb the end shock.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40B the Right Cylinder?
When sizing this model, evaluate your force requirements both ways. Dropping down to the SDAJ63 bore yields 1558.6 N of push at 0.5 MPa, whereas stepping up to the SDAJ100 provides 3927 N. This SDAJ80X55-40B sits comfortably in the middle at 2513.3 N, offering a safe working load of roughly 1508 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity of approximately 128.1 kg with a 2:1 margin.
Choose this specific configuration if your assembly line requires frequent changeovers or trial positioning within the 15 to 55 mm extend window. Confirm the 80 mm bore, 55 mm max stroke, 40 mm adjust window, PT3/8 port, and male M22x1.5 rod thread meet your footprint constraints. Note that this SKU lacks a piston magnet, so position sensing is not possible without the -S variant. Finally, a plain cylinder does not hold its load on air loss or valve centering—the piston drifts and the bumper only decelerates near the stroke end. For a held load, 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 SDAJ80X55-40B FAQ
This 80 mm bore double-acting cylinder provides 2513.3 N push and 2267.8 N pull at 0.5 MPa, or 3518.6 N push and 3175 N pull at 0.7 MPa. The theoretical maximum push is 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, proof pressure is 1.5 MPa, temperature range is -20 to +70 C, and speed is 30-500 mm/s.
Turning the R (M20x1.5) adjuster screw mechanically shortens the extend stop from the 55 mm maximum down to 15 mm. This sets the end position only; it does not change the force and is not a mid-stroke lock. The cylinder cannot hold a load if air pressure is lost or the valve is centered—for load holding, use an external rod lock or pilot-operated check valve.
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