Airtac SEJ Adjustable Cylinder SEJ100BX160-100S
The AirTAC SEJ Adjustable Cylinder SEJ100BX160-100S 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 100mm window, so this Ø100mm unit covers an effective stroke of 60–160mm without changing cylinders. Force is equal in both directions.
- BoreØ100 mm
- Nominal stroke160 mm
- Adjust window100 mm
- Effective stroke60–160 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 SEJ100BX160-100S
The AirTAC SEJ100BX160-100S is a double-acting, double-rod ISO 15552 profile cylinder featuring a SUS304 stainless steel rod on both ends for corrosion and washdown resistance. A stop screw on the back rod provides a 100 mm adjustable stroke window, allowing you to dial in the exact retract position. The effective stroke range is 60 to 160 mm, perfect for fine-tuning end positions during machine commissioning without swapping hardware.
Because a rod exits both ends, the annulus area is identical in both directions. This yields an equal force of 3681 N each way at 0.5 MPa and 5153 N at 0.7 MPa. The barrel extrusion omits external tie rods, and an integrated magnet enables position sensing with CMSE reed or DMSE electronic sensors.
Airtac SEJ Adjustable Cylinder SEJ100BX160-100S Technical Specifications
| Model | Airtac SEJ Adjustable Cylinder SEJ100BX160-100S |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 160 mm |
| Adjustment window | 100 mm (60–160 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 100mm 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 SEJ100BX160-100S
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×160 | Nominal stroke length in mm. |
| -100 | 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 SEJ100BX160-100S Is Used
Washdown Cartoner Stops
Dial the retract stroke 60-160 mm to match carton width changeovers on stainless food packaging lines, utilizing the 5153 N both-way force to positively pull the carton flap.
Palletizer Trial Positioning
Fine-tune the end stop during palletizer commissioning without disassembling hardware, using the 100 mm window to test multiple pick-and-place heights before locking the back rod.
Bottle Sorter Gate Adjustment
Adjust the retract distance on the fly to accommodate different bottle diameters, using the SUS304 rod and 3681 N at 0.5 MPa to reliably shift diverter gates in wet bottling environments.
Is the Airtac SEJ Adjustable Cylinder SEJ100BX160-100S the Right Cylinder?
Verify that the 100 mm adjustment window covers your required retract distance. If your application needs less than 60 mm effective stroke, step down to the 80 mm bore, which provides 2268 N both ways at 0.5 MPa. If you require higher force, the 125 mm bore offers 5734 N at 0.5 MPa but caps speed at 30-500 mm/s versus this 100 mm bore's 30-800 mm/s. If the exact end position never changes after setup, a fixed-stroke SED cylinder is a simpler choice.
This actuator uses a PT1/2 port and a field-adjustable air cushion at both ends to decelerate the load near the stroke limits. The cushion and stop screw set the mechanical end and deceleration; they do not hold position on air loss. For fail-safe holding, use an external rod lock or a BSED cylinder. With a 160 mm stroke, support side loads with external guides to prevent rod binding.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Adjustment window (100mm) 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 100mm 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 SEJ100BX160-100S FAQ
A stop screw on the rear rod mechanically shortens the retract stroke over a 100 mm window. The effective stroke range is 60 to 160 mm. You set the exact end position on the machine, then lock the screw. This allows one cylinder to cover a range of strokes without changing hardware.
Because it is a double-rod cylinder, force is equal both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and a maximum of 751 kgf at 1.0 MPa. It is dimensionally interchangeable per ISO 15552, uses a PT1/2 port, and includes a magnet for CMSE or DMSE sensors.
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