
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-40B 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 0 to 40 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X40-40B is a compact double-acting single-rod cylinder featuring an external mechanical stop for the extend position. An M27x2.0 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 during changeovers. Retract remains full length, and the adjuster strictly dictates the stop without altering pneumatic area.
Output matches a standard 100 mm bore, yielding 3927 N of push force at 0.5 MPa. The short riveted body drastically reduces axial mounting depth compared to conventional round-body units, fitting into tight machinery footprints. This specific SKU uses a male M26x1.5 piston rod thread and relies on a fixed NBR bumper to decelerate the stroke end rather than an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X40-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 40 mm |
| Adjustable range | 0 – 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 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. |
| ×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).
Dial the 0-40 mm extend stop to precisely seat large bearings without overshooting, leveraging the 3927 N push force at 0.5 MPa for heavy press tasks.
Quickly readjust the male M26x1.5 rod endpoint on-site during product family swaps, saving axial space with the compact riveted body while handling 200.2 kg vertical lifts.
Use as a robust mechanical stop for heavy pallets, tuning the 0-40 mm window to accommodate varying pallet thicknesses without changing cylinder hardware.
When sizing this unit, verify if the 100 mm bore provides the optimal thrust. Stepping down to the SDAJ80 drops the 0.5 MPa push force to 2513.3 N, whereas this 100 mm bore delivers 3927 N. If your application requires even greater power, you would need to step outside the standard SDA compact family. This model is ideal for operators needing on-site stroke tuning for trial positioning. Confirm the 40 mm window, PT3/8 port, and the male M26x1.5 rod thread suit your mounting hardware.
A safe working load is roughly 2356 N, representing about 60% of the 0.5 MPa push figure, which allows a vertical lift of approximately 200.2 kg with a 2:1 safety margin. Remember that a plain cylinder does not hold its load on air loss or valve centring; the piston drifts and the fixed bumper only decelerates near the stroke end. For a held load, specify an external rod lock or a pilot-operated check valve. Note this SKU lacks a magnet, so it cannot accept reed or electronic switches.
Quick checklist
This 100 mm bore double-acting cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa. At 0.7 MPa, push increases to 5497.8 N and pull to 4934.8 N. The theoretical maximum push is 801 kgf at 1.0 MPa.
The M27x2.0 screw shortens the extend stop by up to 40 mm, giving a usable extend range of 0 to 40 mm without changing force. This SKU does not include a piston magnet, so it cannot accept reed or electronic switches; you would need the -S option for sensing.
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