Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B 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 0 to 40 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke40 mm
- Adjustable range0–40 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B
The AirTAC SDAJ80X40-40B is a compact double-acting single-rod cylinder featuring an external M20x1.5 adjustment screw that dials the extend stop from 0 to 40 mm directly on your machine. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa. The short riveted body drastically reduces axial mounting depth where larger profile or round-body units cannot fit. This specific SKU includes a male M22x1.5 piston rod and lacks a piston magnet, meaning it cannot host reed or electronic switches.
End-of-travel deceleration relies on a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Operating pressure spans 0.15 to 1.0 MPa, with a broad speed range of 30-500 mm/s. For high kinetic energy approaches, consider adding external shock absorbers. The PT3/8 air port is fixed by the 80 mm bore, and the theoretical maximum push capacity reaches 513 kgf at 1.0 MPa.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 40 mm |
| Adjustable range | 0 – 40 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 SDAJ80X40-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SDAJ80X40-40B Is Used
Heavy Press Fitments
Dial the 0-40 mm extend stop to set precise pressing depth for 80 mm bore assemblies, leveraging 2513.3 N of push without swapping mechanical shims.
Vertical Lift Stations
Lift loads up to 128.1 kg with a 2:1 margin, adjusting the male M22x1.5 rod extension on-site to accommodate varying payload thicknesses during changeovers.
Compact Clamp Towers
Utilize the short riveted body to save axial depth in dense machining cells while using the fixed NBR bumper to absorb the 3518.6 N extend shock at 0.7 MPa.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40B the Right Cylinder?
When sizing this unit, evaluate both neighboring bores: stepping down to the SDAJ63 yields 1558.6 N of push at 0.5 MPa, while upgrading to the SDAJ100 provides 3927 N. This SDAJ80X40-40B is ideal for heavy fixtures requiring on-site stroke tuning, offering a safe working load of roughly 1508 N (about 60% of its 0.5 MPa rating) and a vertical lift capacity of approximately 128.1 kg with a 2:1 safety margin. Note that a plain cylinder does not hold position upon air loss or valve centering; the piston drifts and the bumper only decelerates near the end. For suspended loads, install an external rod lock or pilot-operated check valve. Confirm your bore, 40 mm stroke, 40 mm window, PT3/8 port, male M22x1.5 rod thread, and lack of magnet before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–40 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 SDAJ80X40-40B 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 delivers 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 extend range of 0-40 mm. It acts as a mechanical stop, not a mid-stroke lock. The cylinder cannot hold a load if air is lost; use an external rod lock for suspended loads.
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