
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-40B 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 25 to 65 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X65-40B is a double-acting compact cylinder featuring an external R (M27x2.0) adjustment screw that dials the extend stop from 25 to 65 mm without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa. The short riveted body minimizes axial mounting depth, fitting easily where larger profile or round-body units cannot.
This specific SKU includes a male-thread piston rod (M26x1.5) for secure external mounting and operates at 30-500 mm/s. End-of-stroke deceleration relies on a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Note that this variant lacks a piston magnet, so it cannot support reed or electronic switches without the -S option.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 65 mm |
| Adjustable range | 25 – 65 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 40 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
| 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.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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).
Dial the 25-65 mm extend stop precisely during stamping setup to accommodate different material thicknesses without swapping cylinders.
Quickly reposition the male M26x1.5 rod end for varying product dimensions on high-thrust assembly stations requiring up to 3927 N push.
Set exact downward travel for lifting 200.2 kg loads with a 2:1 margin, relying on the mechanical stop to define the resting depth.
When sizing this unit, compare its 3927 N push at 0.5 MPa against the smaller SDAJ80, which yields 2513.3 N at the same pressure. If your application requires less force, the 80 mm bore saves space; if you need maximum thrust, the 100 mm bore provides a theoretical maximum of 801 kgf at 1.0 MPa. The computed safe working load is approximately 2356 N (about 60% of the 0.5 MPa figure), allowing a vertical lift of roughly 200.2 kg with a 2:1 safety margin.
This model is ideal for operators needing on-site stroke tuning during heavy setup changeovers. Confirm your requirements for the 100 mm bore, 65 mm maximum stroke, 40 mm adjustment window, PT3/8 port, and male M26x1.5 rod thread. 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, install an external rod lock or pilot-operated check valve.
Quick checklist
At 0.5 MPa it provides 3927 N push and 3524.9 N pull. At 0.7 MPa it provides 5497.8 N push and 4934.8 N pull. The theoretical maximum push is 801 kgf at 1.0 MPa.
The M27x2.0 R screw shortens the extend stroke on-site from the 65 mm maximum down to 25 mm. This specific SKU lacks a piston magnet, so it cannot take reed or electronic switches; you must select the -S variant for sensing capabilities.
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