
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-40B is a genuine double-acting COMPACT cylinder (Ø80mm bore) whose extend end-position is set by an external M20×1.5 adjustment screw. You can dial the stroke anywhere from 0 to 35 mm on the machine — no shims, no part change.
The AirTAC SDAJ80X35-40B is a double-acting compact cylinder featuring a male-thread piston rod (M22x1.5) and an external adjustable extend stop. Turning the M20x1.5 R screw lets you dial the extend position from 0 to 35 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. Retract travel remains full length.
This 80 mm bore unit delivers 2513.3 N of push force at 0.5 MPa, identical to a standard SDA because the adjuster sets the mechanical stop, not the piston area. The short riveted body saves axial mounting depth where round-body or profile cylinders will not fit. End shock is handled by a fixed NBR bumper, which decelerates the stroke end but is not an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X35-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 35 mm |
| Adjustable range | 0 – 35 mm |
| Adjuster thread (R) | M20×1.5 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M14×1.5 F / M22×1.5 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×35 | 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 extend stop from 0 to 35 mm on the factory floor to set precise pressing depths for 80 mm bore assemblies without machining new spacers.
Quickly reposition the male M22x1.5 rod end for varying product lengths on a packaging line, relying on the 2513.3 N push force to shift heavy loads.
Lift payloads up to 128.1 kg with a 2:1 safety margin, using the M20x1.5 adjuster screw to set the exact raise height and prevent overtravel.
When sizing this model, evaluate both neighbouring bores: the SDAJ63 provides 1558.6 N push at 0.5 MPa, while the SDAJ100 offers 3927 N. This SDAJ80X35-40B sits in the middle with 2513.3 N, yielding a safe working load of roughly 1508 N (about 60 percent of the 0.5 MPa figure) and a vertical lift capacity near 128.1 kg with a 2:1 margin.
Choose this specific configuration if your fixture requires on-site stroke tuning for trial positioning. Confirm the 80 mm bore, 35 mm stroke, 40 mm window, PT3/8 port, and male M22x1.5 rod thread suit your tooling. Note that a plain cylinder does not hold a load on air loss or valve centring; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
This 80 mm bore double-acting cylinder uses a PT3/8 air port. It generates 2513.3 N push and 2267.8 N pull at 0.5 MPa, 3518.6 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa.
No, this specific SKU lacks the -S option and has no piston magnet, so it cannot accept reed or electronic switches. You must select the -S variant to enable sensing capabilities alongside the mechanical stop adjustment.
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