Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20S 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 SDAJ100X40-20S
The SDAJ100X40-20S is a double-acting compact cylinder featuring an external adjustable extend stop. Turning the R (M27x2.0) screw lets you dial the outward stroke down from the 40 mm maximum to as little as 20 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. Because the adjuster only sets the mechanical stop position rather than altering the piston area, output force remains identical to a standard SDA of this bore, yielding 3927 N of push at 0.5 MPa.
Its short riveted body drastically reduces axial mounting depth compared to conventional round-body or profile cylinders, fitting heavy-duty actuators into tight machinery footprints. The unit relies on a fixed NBR bumper at each end to absorb end-of-stroke shock rather than an adjustable air cushion. Equipped with a built-in piston magnet (-S), this model supports AirTAC reed or electronic solid-state switches for precise position sensing.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20S |
|---|---|
| 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 SDAJ100X40-20S
| 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 SDAJ100X40-20S Is Used
Press Fit Commissioning
Dial the extend stop from 40 mm down to 20 mm via the M27x2.0 screw during initial setup to find the exact seating depth for heavy bearings without swapping physical spacers.
Multi-Format Material Clamping
Adjust the outward stroke on the fly to accommodate varying workpiece thicknesses on a single fixture, using the full 3927 N push force to secure heavy steel plates securely.
Heavy Vertical Lifting
Lift loads up to 200.2 kg with a 2:1 safety margin, relying on the compact riveted body to save overhead space in tight lifting stations while tuning the stop to prevent over-travel.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-20S the Right Cylinder?
When sizing this actuator, compare its 3927 N push at 0.5 MPa against adjacent bores. Stepping down to the SDAJ80 yields 2513.3 N, which may be insufficient for heavy loads, whereas this 100 mm bore provides a robust safe working load of roughly 2356 N (about 60 percent of the 0.5 MPa figure) and can vertically lift approximately 200.2 kg with a 2:1 safety margin. Choose this specific model if your assembly line requires frequent on-site stroke tuning to test part positioning or accommodate varied material thicknesses.
Confirm your parameters before ordering: a 100 mm bore, 40 mm maximum stroke, 20 mm adjustment window, and PT3/8 air port. This configuration includes the -S magnet for switch sensing and a female M18x1.5 rod-end thread. Remember that a plain cylinder does not hold its load if air pressure drops or the valve centers; the piston will drift. For suspended or gravity-loaded applications requiring fail-safe holding, integrate an external rod lock or pilot-operated check valve.
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 SDAJ100X40-20S FAQ
At 0.5 MPa it provides 3927 N push and 3524.9 N pull. At 0.7 MPa the push increases to 5497.8 N and pull to 4934.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa.
The external R (M27x2.0) screw mechanically shortens the extend end position by up to 20 mm, giving a usable range of 20-40 mm; it does not alter the force. The built-in magnet (-S) allows you to mount AirTAC reed or electronic solid-state switches directly into the body sensor grooves.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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