Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40SB 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 SDAJ80X40-40SB
The AirTAC SDAJ80X40-40SB is a double-acting compact cylinder featuring an external adjustable extend stop. An M20x1.5 adjuster screw lets you dial the outward stroke from 0 to 40 mm directly on the machine, eliminating the need for shims or part swaps. Retract remains full length, while the force stays identical to a standard 80 mm bore SDA, delivering 2513.3 N of push at 0.5 MPa.
This unit includes a built-in piston magnet for AirTAC reed or electronic switches and a male M22x1.5 piston rod thread. The short riveted body minimizes axial mounting depth where round-body or profile cylinders cannot fit. End shock is managed by a fixed NBR bumper that decelerates the piston, which is not an adjustable air cushion or a mid-stroke lock.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40SB |
|---|---|
| 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 SDAJ80X40-40SB
| 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 SDAJ80X40-40SB Is Used
Press Fit Dialing
Fine-tune the 0-40 mm extend stop during press-fit changeovers to accommodate varying component heights without swapping out the entire actuator assembly.
Heavy Vertical Lift
Lift loads up to 128.1 kg with a 2:1 safety margin, using the M20x1.5 adjuster to set precise downward travel limits for stacking or placement tasks.
Compact Clamp Station
Utilize the short riveted body to save axial depth in tight machining cells, dialing the clamp position exactly where needed via the male M22x1.5 rod.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X40-40SB the Right Cylinder?
When sizing this 80 mm bore actuator, evaluate your force needs both ways. Stepping down to the SDAJ63 yields 1558.6 N of push at 0.5 MPa, whereas moving up to the SDAJ100 provides 3927 N. This SDAJ80X40-40SB generates 2513.3 N at 0.5 MPa, translating to a safe working load of roughly 1508 N or a vertical lift capacity of about 128.1 kg with a 2:1 margin. Choose this specific model if your fixture requires on-site extend tuning between 0 and 40 mm.
Confirm your parameters: an 80 mm bore, 40 mm maximum stroke, 40 mm adjust window, and a PT3/8 air port. This variant includes the -S magnet for position sensing and the -B male M22x1.5 rod end. Note that a plain cylinder drifts when air is lost or the valve is centered; for load holding without live pressure, install an external rod lock or pilot-operated check valve.
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 SDAJ80X40-40SB 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 is 513 kgf at 1.0 MPa.
The M20x1.5 adjuster screw mechanically shortens the extend stop from 0 to 40 mm; it does not alter the force. The built-in -S magnet enables position detection using either AirTAC reed or electronic solid-state switches.
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Standard models usually ship in 3-4 days.
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