
The AirTAC SEJ Adjustable Cylinder SEJ63BX200-100S 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 Ø63mm unit covers an effective stroke of 100–200mm without changing cylinders. Force is equal in both directions.
The AirTAC SEJ63BX200-100S is a double-acting, double-rod ISO 15552 profile cylinder engineered for exacting positioning. A stainless steel SUS304 rod exits both ends, yielding identical extend and retract forces of 1402 N at 0.5 MPa. The integrated stop screw on the back rod lets you dial the retract end over a 100 mm window, creating an effective stroke range of 100 to 200 mm without changing hardware.
Because the annulus area is symmetrical, you get equal thrust and speed in both directions. The extruded aluminum barrel contains field-adjustable air cushions at both ends to manage deceleration, and the built-in magnet supports CMSE reed or DMSE electronic sensors for position feedback.
| Model | Airtac SEJ Adjustable Cylinder SEJ63BX200-100S |
|---|---|
| Series | SEJ ISO 15552 adjustable-stroke cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 200 mm |
| Adjustment window | 100 mm (100–200 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 100mm window. Port options: PT (standard) / G (BSPP).
| 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.
| SEJ | ISO 15552 double-rod double-acting cylinder with adjustable stroke. |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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).
Dial the retract stroke from 100 to 200 mm to precisely set package indexing stops, utilizing the 1402 N both-way force to shift cartons reliably.
The SUS304 double rods resist corrosion in food washdown lines while providing equal thrust for smooth product diversion at variable heights.
Quickly reposition the mechanical end within the 100 mm window to accommodate new part sizes without swapping cylinder hardware.
This 63 mm bore delivers 1402 N both ways at 0.5 MPa. If your load is lighter, the 50 mm bore provides 825 N; for heavier demands, stepping up to the 80 mm bore yields 2268 N. Use this model when commissioning requires fine-tuning the end position within that 100 mm window. If a fixed stop is sufficient, the standard SED double-rod cylinder saves space.
For a direct ISO 15552 replacement, match the 200 mm stroke, 100 mm adjustment window, PT3/8 port, and your preferred mounting from the SEJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the air cushion decelerates the load near stroke end but does not hold position on air loss; use an external rod lock for fail-safe holding.
Quick checklist
The retract stroke is adjustable over a 100 mm window. This means your effective stroke can be dialed anywhere from 100 mm up to the nominal 200 mm, which is ideal for fine-tuning end positions on the machine.
Because the rod exits both ends, force is equal in both directions. It provides 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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