
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X75-40 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 35 to 75 mm on the machine — no shims, no part change.
The SDAJ100X75-40 is a compact double-acting single-rod cylinder engineered for substantial thrust within a minimal axial footprint. A short riveted body saves mounting depth where larger profile cylinders cannot fit. The external M27x2.0 adjuster screw lets you dial the extend stop directly on the machine, shortening the stroke by up to 40 mm for a usable 35 to 75 mm range without swapping parts.
Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, providing 3927 N push at 0.5 MPa. End-of-travel energy is managed by a fixed NBR bumper that decelerates the piston, which is not an adjustable air cushion. This specific SKU lacks a piston magnet and cannot accept magnetic switches.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X75-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 75 mm |
| Adjustable range | 35 – 75 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. |
| ×75 | 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 M27x2.0 screw to set precise 35-75 mm extend stops during press changeovers, delivering 3927 N of thrust for seating heavy components without part swaps.
Secure oversized welded assemblies by adjusting the extend position on the fly, utilizing the 100 mm bore's massive 801 kgf maximum output to hold rigid parts.
Lift loads up to 200.2 kg with a 2:1 safety factor and fine-tune the downstroke endpoint to prevent crashes, keeping the 32 mm rod clear of side loads.
When sizing this 100 mm bore actuator, evaluate your force requirements bidirectionally. Stepping down, the SDAJ80 delivers 2513.3 N push at 0.5 MPa, making the 100 mm bore necessary if your application demands the 3927 N available here. Operating at 0.5 MPa yields a safe working load of roughly 2356 N, or about 60 percent of the rated push, while vertical lift capacity calculates to 200.2 kg with a 2:1 safety margin.
Choose this model when frequent line changeovers require on-site stroke tuning between 35 and 75 mm. Confirm the PT3/8 port, the female M18x1.5 rod-end thread, and the 32 mm rod diameter suit your mounting interface. Remember that a plain cylinder cannot hold a load if air pressure drops or the valve centers; the fixed bumper only decelerates near the end of travel and the R screw is a mechanical stop, not a lock. For suspended loads, integrate an external rod lock or pilot-operated check valve.
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.
Turning the external R (M27x2.0) screw mechanically shortens the extend endpoint down to 35 mm from the 75 mm maximum. This adjustment sets the stop position and does not alter force. The cylinder cannot hold a load on air loss; you need an external rod lock for suspended loads.
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