Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B 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 25 to 45 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke45 mm
- Adjustable range25–45 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B
The AirTAC SDAJ80X45-20B is a double-acting compact cylinder featuring an external M20x1.5 adjuster screw that dials the extend stop directly on your machine. You can set the outward stroke anywhere between 25 and 45 mm without swapping shims or parts, making it ideal for trial positioning and frequent changeovers. The short riveted body minimizes axial mounting depth where a larger profile cylinder cannot fit.
Turning the external stop limits the outward travel, but it does not alter the piston area; therefore, output force equals a standard SDA of this bore, delivering about 2513.3 N push at 0.5 MPa. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. This specific SKU includes a male M22x1.5 piston rod thread and lacks a piston magnet, so it cannot host reed or electronic switches.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 45 mm |
| Adjustable range | 25 – 45 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 SDAJ80X45-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SDAJ80X45-20B Is Used
Press Fit Dialing
Fine-tune the 25 to 45 mm extend stop during press-fit setups to find the exact seating depth for 80 mm bore pressing force without machining new spacers.
Product Diversion
Adjust the pusher stroke on the fly when package sizes change on the line, using the full 2513.3 N at 0.5 MPa to redirect heavy cartons reliably.
Heavy Lift Lowering
Set precise downward travel limits for vertical lifts handling up to 128.1 kg with a 2:1 margin, preventing hard mechanical crashes via the fixed NBR bumper.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20B the Right Cylinder?
When sizing this unit, evaluate the force margins 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 80 mm bore sits comfortably in the middle, offering a safe working load of roughly 1508 N (about 60 percent of its 0.5 MPa rating) and a vertical lift capacity near 128.1 kg with a 2:1 safety margin.
Choose this male-rod (M22x1.5) configuration when your tooling requires a threaded attachment point, and confirm your setup accommodates the PT3/8 air port. Because the adjuster acts solely as a mechanical stop and the NBR bumper only decelerates near the end of travel, the piston will drift if air is lost or the valve is centered. For load holding without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 25–45 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 SDAJ80X45-20B FAQ
This 80 mm bore cylinder features a PT3/8 air port and 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.
The M20x1.5 adjuster screw mechanically shortens the extend stroke from the 45 mm maximum down to 25 mm without changing the output force. This SKU uses a male M22x1.5 piston rod thread and lacks the -S magnet, meaning it cannot support reed or electronic switches.
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