Airtac SEJ Adjustable Cylinder SEJ63X100-10SFA
The AirTAC Airtac SEJ Adjustable Cylinder SEJ63X100-10SFA 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 Ø63mm unit covers an effective stroke of 90–100mm without changing cylinders. Force is equal in both directions.
- BoreØ63 mm
- Nominal stroke100 mm
- Adjust window10 mm
- Effective stroke90–100 mm
- Port sizePT3/8
- 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 SEJ63X100-10SFA
The AirTAC SEJ63X100-10SFA is a double-acting, double-rod ISO 15552 profile cylinder with an FA foot mount. A rod exits both ends, yielding identical annulus areas so output force is equal in both directions at 1402 N each way at 0.5 MPa. A rear stop screw lets you dial the retract stroke over a 10 mm window, giving an effective 90-100 mm range for exact positioning.
It includes a magnet for CMSE reed or DMSE electronic sensors. The extruded aluminum barrel has no external tie rods, and field-adjustable air cushions at both ends decelerate the load near stroke end. Note that the stop screw sets the mechanical end; it does not hold position on air loss.
Airtac SEJ Adjustable Cylinder SEJ63X100-10SFA Technical Specifications
| Model | Airtac SEJ Adjustable Cylinder SEJ63X100-10SFA |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 mm |
| Adjustment window | 10 mm (90–100 mm) |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M16×1.5 |
|---|---|
| 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 (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 SEJ63X100-10SFA
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SEJ63X100-10SFA Is Used
Press Fit Depth Tuning
Dial the 10 mm retract window to set exact press depths for bearing insertion, leveraging the 1962 N both-way force at 0.7 MPa.
Part Height Changeover
Adjust the end stop on the fly when switching machining fixtures to different part heights without swapping hardware.
Gripper Trial Positioning
Fine-tune the gripper travel range during robotic end-effector commissioning to find the optimal pick point.
Is the Airtac SEJ Adjustable Cylinder SEJ63X100-10SFA the Right Cylinder?
Verify the 10 mm adjustment window covers your positioning tolerance. If you need less force, the 50 mm bore delivers 825 N both ways at 0.5 MPa; if you need more, step up to the 80 mm bore for 2268 N both ways. If your end position never changes, a fixed-stroke SED saves complexity. For fail-safe holding on air loss, use an external rod lock or BSED. This cylinder replaces any ISO 15552 unit matching 63 mm bore, 100 mm stroke, PT3/8 ports, FA mount, and a magnet.
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 SEJ63X100-10SFA FAQ
The rear stop screw provides a 10 mm adjustment window, allowing the effective stroke to be set anywhere from 90 mm to the full 100 mm nominal stroke.
Because the rod exits both ends, force is identical in both directions: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and a maximum of 286 kgf at 1.0 MPa.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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