
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-30 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 40 to 70 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X70-30 is a double-acting compact cylinder featuring an external adjustable extend stop. An M27x2.0 adjuster screw lets you dial the forward stroke down from 70 mm to 40 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. The adjuster strictly sets the mechanical stop position and does not alter the pneumatic area, meaning output force remains identical to a standard SDA of this bore.
Delivering 3927 N of push force at 0.5 MPa, this 100 mm bore unit provides massive thrust in a short riveted body that saves axial mounting depth. It uses a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. This specific SKU ships without a piston magnet, so it cannot host reed or electronic switches.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-30 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 70 mm |
| Adjustable range | 40 – 70 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 30 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. |
| ×70 | Maximum stroke length in mm. |
| -30 | 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 in the exact 40-70 mm extend stop on the factory floor to perfect high-force 3927 N press fits without machining custom spacers.
Rapidly reconfigure the mechanical end position for different part heights during changeover, leveraging the 801 kgf max thrust for deep forming tasks.
Lift loads up to 200.2 kg with a 2:1 margin, using the fixed NBR bumper to absorb end-shock while relying on an external check valve for holding.
When sizing this model, evaluate your force requirements against its neighbours. Stepping down, the 80 mm bore provides 2513.3 N of push at 0.5 MPa, whereas this 100 mm bore yields 3927 N at the same pressure. If your application demands even more thrust, this is the largest standard bore in the series, so exceeding 801 kgf at 1.0 MPa requires a different cylinder architecture. For a safe working load, plan around 2356 N, which provides a 2:1 safety margin and allows a vertical lift of roughly 200.2 kg.
Choose this adjustable variant if your assembly line requires frequent trial positioning or exact end-stop tuning without swapping cylinders. Confirm your setup needs a 40-70 mm extend window, a PT3/8 air port, and a female M18x1.5 rod-end thread. Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end of travel. For load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 100 mm bore cylinder features a PT3/8 port and delivers 3927 N push / 3524.9 N pull at 0.5 MPa, and 5497.8 N push / 4934.8 N pull at 0.7 MPa. The theoretical maximum push force is 801 kgf at 1.0 MPa.
The M27x2.0 screw mechanically shortens the forward stroke by up to 30 mm, allowing an extend range of 40-70 mm; retract remains full. This specific SKU lacks a piston magnet, so it cannot accept switches, but the -S variant adds a magnet for reed or electronic sensing.
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