Airtac SEJ Adjustable Cylinder SEJ32BX75-30S
The AirTAC SEJ Adjustable Cylinder SEJ32BX75-30S is a genuine double-acting ISO 15552 double-rod cylinder with a mechanically ADJUSTABLE stroke: a back-rod stop screw lets you fine-tune the retract end over a 30mm window, so this Ø32mm unit covers an effective stroke of 45–75mm without changing cylinders. Force is equal in both directions.
- BoreØ32 mm
- Nominal stroke75 mm
- Adjust window30 mm
- Effective stroke45–75 mm
- Port sizePT1/8
- CushionAdjustable, 27 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SEJ Adjustable Cylinder SEJ32BX75-30S
The AirTAC SEJ32BX75-30S is a double-acting, double-rod ISO 15552 profile cylinder engineered for precise end-position tuning. A rod exits both ends, meaning the annulus area is identical in both directions. This guarantees equal force and speed, delivering 345 N each way at 0.5 MPa. The integrated magnet supports position sensing.
You can dial the retract stroke up to 30 mm via a back-rod stop screw, yielding an effective stroke range of 45-75 mm. The SUS304 stainless steel rods suit washdown environments. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SEJ Adjustable Cylinder SEJ32BX75-30S Technical Specifications
| Model | Airtac SEJ Adjustable Cylinder SEJ32BX75-30S |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Adjustment window | 30 mm (45–75 mm) |
| Configuration | Double rod, double acting |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C (0–150 °C with FKM seals) |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
Specifications follow the official AirTAC SEJ datasheet and ISO 15552 / VDMA 24562 dimensions. The adjustment screw shortens the retract end only; do not exceed the 30mm window. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø32mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 346 N |
| 0.7 MPa | 484 N |
| Max (@1.0 MPa) | 70 kgf |
A rod exits both ends, so extend and retract force are identical. Actual usable force is lower than theoretical; size with a safety margin.
Model Code: Airtac SEJ Adjustable Cylinder SEJ32BX75-30S
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | Nominal stroke length in mm. |
| -30 | Adjustment stroke window in mm (options: 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting (SEJ): Basic, LB, FA, TC, FTC, TCM1, TCM2. Related: SED (double rod, fixed stroke), SE (single rod).
Where the Airtac SEJ Adjustable Cylinder SEJ32BX75-30S Is Used
Packaging Changeover
Adjust the retract stop to match varying carton heights during format changeovers without swapping hardware.
Press Fit Commissioning
Fine-tune the end position during light-duty press fit operations, locking the back-rod stop screw once the exact depth is set.
Is the Airtac SEJ Adjustable Cylinder SEJ32BX75-30S the Right Cylinder?
If your application requires less force, step down to a 25 mm bore. If you need more clamping power, step up to a 40 mm bore, which yields 528 N at 0.5 MPa. The 30 mm adjustment window lets you fine-tune the 75 mm nominal stroke during machine commissioning. If your stroke length never changes, a fixed-stroke SED cylinder is sufficient. Remember, the adjustable air cushion decelerates the load near stroke end but does not hold position on air loss; for fail-safe holding, use an external rod lock.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Adjustment window (30mm) covers your range
- ✓ Equal force both directions OK
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the stop screw within the 30mm window; lock it after adjusting.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SEJ Adjustable Cylinder SEJ32BX75-30S FAQ
The retract end is mechanically adjustable via a back-rod stop screw over a 30 mm window. This means your effective stroke range is 45 to 75 mm.
Because the rod exits both ends, force is equal in both directions. It provides 345 N at 0.5 MPa, 483 N at 0.7 MPa, and a maximum of 70 kgf at 1.0 MPa.
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