Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20B is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 20 to 40 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke40 mm
- Adjustable range20–40 mm
- Adjuster threadM27×2.0
- 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 SDAJ100X40-20B
The AirTAC SDAJ100X40-20B is a double-acting compact cylinder featuring an external R (M27x2.0) adjuster screw that lets you dial the extend stop directly on the machine between 20 and 40 mm. Because the mechanism sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N push at 0.5 MPa. The male-thread M26x1.5 piston rod provides a robust mounting interface for heavy tooling.
Its short riveted body drastically reduces axial mounting depth compared to round-body alternatives, fitting into tight machine frames without sacrificing power. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to manage impact.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 40 mm |
| Adjustable range | 20 – 40 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SDAJ100X40-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | 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 SDAJ100X40-20B Is Used
Heavy Press Fit Tuning
Dial in the exact 20 to 40 mm extend stop during press fixture commissioning to prevent over-travel on high-thrust bearing seating operations.
Vertical Lift Dampening
Lift 200 kg loads vertically using the 3927 N push force, relying on external check valves for holding while the NBR bumper manages end deceleration.
Short-Depth Assembly Station
Install the compact riveted body in tight machinery frames where axial length is restricted, utilizing the male M26x1.5 rod for heavy tooling attachment.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20B the Right Cylinder?
When sizing this 100 mm bore actuator, evaluate both neighbors: dropping down to the SDAJ80 yields 2513.3 N push at 0.5 MPa, whereas this 100 mm unit provides 3927 N. This makes the 100 mm ideal when the 80 mm runs out of thrust, offering a safe working load of roughly 2356 N (about 60 percent of the 0.5 MPa figure) or a vertical lift capacity near 200.2 kg with a 2:1 safety margin. Choose this specific SKU when your setup requires on-site stroke tuning within the 20 to 40 mm window and a male M26x1.5 rod end.
Verify your system parameters against the bore-fixed PT3/8 air port and operating pressure range of 0.15 to 1.0 MPa. Note that this SKU lacks the -S magnet, so it cannot accept reed or electronic switches; if sensing is required, select the -S variant. Furthermore, a plain cylinder does not hold position on air loss or valve centering—implement an external rod lock or pilot-operated check valve for suspended loads.
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 M27×2.0 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 SDAJ100X40-20B FAQ
This 100 mm bore double-acting cylinder generates 3927 N push and 3524.9 N pull at 0.5 MPa, increasing to 5497.8 N push and 4934.8 N pull at 0.7 MPa. The theoretical maximum push is 801 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa at speeds of 30 to 500 mm/s.
The external M27x2.0 adjuster screw mechanically shortens the extend stroke from the 40 mm maximum down to 20 mm without changing the force output. It is strictly a mechanical stop, not a mid-stroke lock; the cylinder will drift if air pressure is lost. Additionally, this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches.
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1-Year Warranty
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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Related AirTAC SDAJ Cylinders
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