Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50 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 45 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke45 mm
- Adjustable range0–45 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50
The AirTAC SDAJ80X45-50 is a compact double-acting single-rod cylinder featuring an external M20x1.5 adjuster screw that dials the extend stop from 0 to 45 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 80 mm bore SDA, delivering 2513.3 N of push at 0.5 MPa. Retract travel stays at the full 45 mm regardless of the extend setting.
This riveted-body design saves crucial axial mounting depth where round-body or profile alternatives will not fit, all while handling a theoretical maximum of 513 kgf at 1.0 MPa. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, meaning the screw dictates the endpoint but does not function as a mid-stroke lock.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 45 mm |
| Adjustable range | 0 – 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 50 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 SDAJ80X45-50
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | Maximum stroke length in mm. |
| -50 | 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 SDAJ80X45-50 Is Used
Heavy Press Fitments
Dial in the exact 0-45 mm extend contact point for heavy pressing tasks without swapping shims, leveraging the 2513.3 N push force for secure seating.
Vertical Lift Stops
Set precise mechanical endpoints for vertical lifts handling up to 128.1 kg with a 2:1 safety margin, ensuring repeatable positioning at upper limits.
Shallow-Footprint Clamping
Utilize the short riveted body to deliver high clamping force in machinery with limited axial depth, adjusting the stroke window on-site for varied part heights.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-50 the Right Cylinder?
When sizing this unit, compare its 2513.3 N push at 0.5 MPa against neighbouring bores: stepping down to SDAJ63 yields 1558.6 N, while stepping up to SDAJ100 provides 3927 N. This 80 mm bore is optimal when you need substantial force in a shallow footprint, and its 0-45 mm extend window is perfect for machines requiring frequent trial positioning during changeovers. The piston rod is 25 mm with a female M14x1.5 thread, and the air port is PT3/8.
Note that this specific SKU lacks a piston magnet, so it cannot accept reed or electronic switches; select the -S option if sensing is required. Furthermore, a plain SDAJ does not hold position or load when air is lost or the valve is centred. To secure a vertical load without live pressure, install an external rod lock or a pilot-operated check valve, as the fixed bumper only decelerates near the end of travel.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–45 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 SDAJ80X45-50 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513.3 N of push force and 2267.8 N of pull force. At 0.7 MPa, push increases to 3518.6 N and pull to 3175 N. The theoretical maximum push force is 513 kgf at 1.0 MPa.
The external M20x1.5 screw shortens the extend stroke by up to 50 mm, allowing you to set the extend stop anywhere between 0 and 45 mm. This SKU has no piston magnet, so it cannot use magnetic switches; choose the -S variant for reed or electronic sensing.
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