Airtac SEJ Adjustable Cylinder SEJ100X75-10
The AirTAC Airtac SEJ Adjustable Cylinder SEJ100X75-10 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 10mm window, so this Ø100mm unit covers an effective stroke of 65–75mm without changing cylinders. Force is equal in both directions.
- BoreØ100 mm
- Nominal stroke75 mm
- Adjust window10 mm
- Effective stroke65–75 mm
- Port sizePT1/2
- CushionAdjustable, 36 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 SEJ100X75-10
The AirTAC SEJ100X75-10 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 10mm adjustable stroke window. A stop screw on the rear rod lets you dial the retract end from 65mm up to the nominal 75mm, perfect for fine-tuning a precise machine end position without swapping hardware.
Because a rod exits both ends, the annulus area is identical in both directions, yielding an equal 3681N of force each way at 0.5 MPa. The Ø25mm rod uses an M20x1.5 thread, and this SKU lacks a magnet, meaning no CMSE or DMSE position sensing is installed.
Airtac SEJ Adjustable Cylinder SEJ100X75-10 Technical Specifications
| Model | Airtac SEJ Adjustable Cylinder SEJ100X75-10 |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 mm |
| Adjustment window | 10 mm (65–75 mm) |
| Configuration | Double rod, double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
|---|---|
| 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, 36 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 10mm window. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø100mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 3682 N |
| 0.7 MPa | 5154 N |
| Max (@1.0 MPa) | 751 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 SEJ100X75-10
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | Nominal stroke length in mm. |
| -10 | 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 SEJ100X75-10 Is Used
Press Die Positioning
Dial in the exact 65-75mm stroke during stamping press setup to match varying material thicknesses, utilizing the 5153N both-way force for consistent clamping.
Variable-Stop Diverter
Fine-tune the retract position of a conveyor sorting gate to handle different package sizes without changing out the entire cylinder assembly.
Machine Commissioning
Iteratively adjust the end-of-stroke position during equipment trials to find the optimal transfer point, locking the back-rod stop screw once the perfect position is set.
Is the Airtac SEJ Adjustable Cylinder SEJ100X75-10 the Right Cylinder?
This 10mm adjustment window is ideal for dialing in a specific 65-75mm end stop during machine commissioning. If you need less force, the 80mm bore delivers 2268N both ways at 0.5 MPa; if you need more, the 125mm bore provides 5734N. If your end position never varies, a fixed-stroke SED cylinder is sufficient. Remember, the adjustable air cushion and stop screw only set the mechanical end and decelerate near stroke end; 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 with a PT1/2 port.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Adjustment window (10mm) 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 10mm 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 SEJ100X75-10 FAQ
A stop screw on the rear rod mechanically shortens the retract stroke over a 10mm window. You can adjust the effective stroke from 65mm up to the nominal 75mm, then lock the screw in place.
Because the rod exits both ends, force is equal in both directions: 3681N at 0.5 MPa, 5153N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa.
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