Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20 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 20 to 40 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke40 mm
- Adjustable range20–40 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20
The AirTAC SDAJ80X40-20 is a double-acting, single-rod compact cylinder featuring an external M20x1.5 adjuster screw that dials the extend stop directly on your machine between 20 and 40 mm. Because the mechanism sets the mechanical end position 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.
Its short riveted body drastically reduces axial mounting depth where larger profile or round-body units cannot fit, while a fixed NBR bumper at each end decelerates the stroke. This specific SKU lacks a piston magnet, so it cannot host reed or electronic switches; for position feedback, select the -S variant instead.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 40 mm |
| Adjustable range | 20 – 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 20 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 SDAJ80X40-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | Maximum stroke length in mm. |
| -20 | 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 SDAJ80X40-20 Is Used
Heavy Press Fitment
Dialing the extend stop from 40 mm down to 20 mm allows precise control over heavy press operations without changing tooling, leveraging 2513.3 N of thrust.
High-Force Changeovers
Ideal for production lines running mixed product batches, letting operators quickly reposition the mechanical stop to accommodate varying workpiece thicknesses on the fly.
Vertical Lift Dampening
Provides robust lifting power for loads up to 128.1 kg with a 2:1 margin, while the fixed NBR bumper absorbs the end-of-stroke shock in downward travel.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-20 the Right Cylinder?
When sizing this 80 mm bore, stepping down to the SDAJ63 yields 1558.6 N of push at 0.5 MPa, whereas moving up to the SDAJ100 provides 3927 N, making the SDAJ80 a strong middle ground for heavy-duty clamping. This model excels in setups requiring frequent on-site stroke tuning to dial in exact contact points without swapping shims or components. Based on the 0.5 MPa push rating, a safe working load is approximately 1508 N (about 60 percent of capacity), or a vertical lift of roughly 128.1 kg with a 2:1 safety margin.
Remember that a plain SDAJ does not hold position if air pressure drops or the valve centers—the piston will drift and the fixed bumper only decelerates near the end of travel. For suspended or gravity-loaded applications, integrate an external rod lock or a pilot-operated check valve. Confirm your requirements for the PT3/8 port, the female M14x1.5 rod-end thread, and the 20 mm adjustment window before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 20–40 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 SDAJ80X40-20 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513.3 N of push and 2267.8 N of pull. At 0.7 MPa, push increases to 3518.6 N. The theoretical maximum push force is 513 kgf at 1.0 MPa.
Turning the external M20x1.5 screw shortens the extend stroke by up to 20 mm, allowing the rod to stop anywhere between 20 mm and 40 mm. This mechanical stop sets the end position without affecting force, and it is not a mid-stroke lock.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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