
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-40S 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 SDAJ100X65-40S is a 100 mm bore double-acting compact cylinder with an external adjustable extend stop. Turning the R (M27x2.0) screw lets you dial the outward stroke anywhere between 25 and 65 mm directly on your machine, eliminating the need for shims or part swaps. Because the adjuster only sets the mechanical stop position, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
This riveted-body design saves valuable axial mounting depth where larger profile cylinders cannot fit. The unit includes a built-in piston magnet for AirTAC reed or electronic switches and relies on a fixed NBR bumper at each end to decelerate the stroke. It is not a mid-stroke lock, so maintaining vertical loads requires an external rod lock or pilot-operated check valve.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-40S |
|---|---|
| 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 to set precise contact depth for inserting heavy bearings without over-stressing the 3927 N force output.
Quickly adjust the outward stroke on the production floor when switching between thick and thin product variants, avoiding teardown time.
Set exact lifting heights for 200.2 kg loads, relying on an external check valve to hold the payload safely when air pressure drops.
When sizing this actuator, evaluate your force requirements both ways. Stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, which may be insufficient for heavy pressing tasks, whereas this 100 mm bore provides a safe working load of roughly 2356 N (about 60% of its 3927 N capacity) and a vertical lift capacity of approximately 200.2 kg with a 2:1 safety margin. Choose this specific model if your fixture requires on-site stroke tuning during frequent changeovers.
Confirm your parameters before ordering: 100 mm bore, 65 mm maximum stroke with a 40 mm adjust window, PT3/8 air port, and a female M18x1.5 rod-end thread. The -S suffix indicates the magnet is present for position sensing. Remember that the fixed NBR bumper absorbs end-shock but does not hold position upon air loss.
Quick checklist
This 100 mm bore double-acting cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, with a theoretical maximum push of 801 kgf at 1.0 MPa.
The M27x2.0 adjuster screw mechanically shortens the extend stroke from the 65 mm maximum down to 25 mm without altering force. The built-in -S magnet allows tracking of the piston position using AirTAC reed or electronic solid-state switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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