Airtac SEJ Adjustable Cylinder SEJ32X75-75S
The AirTAC Airtac SEJ Adjustable Cylinder SEJ32X75-75S 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 75mm window, so this Ø32mm unit covers an effective stroke of 0–75mm without changing cylinders. Force is equal in both directions.
- BoreØ32 mm
- Nominal stroke75 mm
- Adjust window75 mm
- Effective stroke0–75 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 SEJ32X75-75S
The AirTAC SEJ32X75-75S is a double-acting, double-rod ISO 15552 profile cylinder. A rod exits both ends, yielding identical annulus areas so output force is equal in both directions—about 345 N each way at 0.5 MPa. The integrated -S magnet supports CMSE reed and DMSE electronic sensors for position feedback.
This unit features a 75 mm adjustable stroke window, letting you dial the retract end from 0 to 75 mm via a back-rod stop screw. Once the exact machine end-position is set, you lock the screw. It runs at 30-800 mm/s, uses PT1/8 ports, and includes field-adjustable air cushions at both ends to decelerate the load near stroke limits.
Airtac SEJ Adjustable Cylinder SEJ32X75-75S Technical Specifications
| Model | Airtac SEJ Adjustable Cylinder SEJ32X75-75S |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Adjustment window | 75 mm (0–75 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 75mm 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 SEJ32X75-75S
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | Nominal stroke length in mm. |
| -75 | 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 SEJ32X75-75S Is Used
Press Fit Depth Tuning
Dial the 0-75 mm retract stop to precisely set contact force on small bearing presses, leveraging the 345 N both-way output.
Multi-Height Changeover
Quickly reposition the stroke end for packaging lines handling varying carton sizes without swapping out the entire cylinder.
Prototype Positioning
Use the 75 mm window during R&D trial assemblies to find the exact clamping distance, then lock the back-rod stop screw in place.
Is the Airtac SEJ Adjustable Cylinder SEJ32X75-75S the Right Cylinder?
The 75 mm adjustment window is ideal for prototyping jigs or machines requiring frequent changeovers to different part heights. If you need less fine-tuning range, a fixed-stroke SED32 is simpler. For sizing both ways: stepping down is not possible as 32 mm is the smallest bore, but stepping up to the 40 mm bore gives 528 N both-way force at 0.5 MPa. Remember, the adjustable cushion and stop screw only set the mechanical end and decelerate the load; they do not hold position on air loss. For fail-safe holding, use an external rod lock. This cylinder is dimensionally interchangeable per ISO 15552.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Adjustment window (75mm) 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 75mm 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 SEJ32X75-75S FAQ
A stop screw on the back rod lets you mechanically shorten the retract stroke within a 75 mm window, giving an effective stroke range of 0 to 75 mm. You dial in the exact end position and lock it, which is ideal for fine-tuning during machine commissioning.
Because the rod exits both ends, the force is identical 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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