Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB 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 5 to 55 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke55 mm
- Adjustable range5–55 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB
The AirTAC SDAJ80X55-50SB is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, you can dial the extend position anywhere between 5 and 55 mm directly on your machine, avoiding shims or part swaps. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, yielding about 2513.3 N of push at 0.5 MPa.
This variant includes a built-in piston magnet (-S) for AirTAC reed or electronic switches and a male-thread piston rod (-B, M22x1.5). Its short riveted body saves valuable axial mounting depth where larger profile cylinders cannot fit. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Operating speed ranges from 30-500 mm/s across a 0.15-1.0 MPa pressure range.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 55 mm |
| Adjustable range | 5 – 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 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 SDAJ80X55-50SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 SDAJ80X55-50SB Is Used
Heavy Press Fitments
Dial the 5-55 mm extend stop to trial-fit heavy bearings, using the 2513.3 N push force at 0.5 MPa to seat components precisely without over-travel.
Variable Length Diverters
Adjust the male M22x1.5 rod extension on the fly to accommodate different package sizes on a sorting line, ensuring positive contact during changeovers.
Lifting Platform Stops
Set precise mechanical lift limits for a 128.1 kg vertical load, relying on the fixed NBR bumper to absorb the end shock at each cycle.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-50SB the Right Cylinder?
When sizing this unit, evaluate both neighboring bores: stepping down to the SDAJ63 provides 1558.6 N of push at 0.5 MPa, while stepping up to the SDAJ100 delivers 3927 N. This 80 mm bore generates 2513.3 N at 0.5 MPa, translating to a safe working load of roughly 1508 N (about 60 percent of capacity) or a vertical lift of approximately 128.1 kg with a 2:1 safety margin. Choose this specific model if your fixture requires frequent on-site stroke tuning during changeovers.
Confirm the 80 mm bore, 55 mm maximum stroke, 50 mm adjustment window, and PT3/8 air port match your pneumatic supply. The -S code enables position sensing via reed or solid-state switches, while the -B code specifies the male M22x1.5 rod end. Remember that a plain cylinder does not hold position on air loss or valve centering; the fixed bumper only decelerates near the end. 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 5–55 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 SDAJ80X55-50SB FAQ
This 80 mm bore cylinder features a PT3/8 air port and delivers 2513.3 N push / 2267.8 N pull at 0.5 MPa, 3518.6 N push / 3175 N pull at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
Turning the M20x1.5 adjuster screw shortens the extend stroke by up to 50 mm, allowing on-machine positioning between 5 and 55 mm. The -S option adds a piston magnet for AirTAC reed or electronic switches.
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