The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø63mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X100-100S is a double-acting single-rod cylinder that gives you a full 100 mm of field-adjustable stroke-end control through a rear-cap screw, so you can dial in the exact stop position from 0 to 100 mm without swapping the unit. With a 63 mm bore and 20 mm rod, it delivers 1559 N of push force at 0.5 MPa and up to 2805 N at 0.9 MPa, backed by a 28 mm air cushion for smooth deceleration.
This model includes a built-in magnet (-S suffix), letting you clamp CMSG, DMSG, or EMSG reed and solid-state sensors directly on the tie-rod barrel for reliable end-of-stroke or mid-position sensing. The standard PT1/4 port, M16x1.5 rod thread, and TPU seals suit general industrial air service from -20 to +70 °C, with a body length of 197 mm.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -100 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Fine-tune the retract stop on a new assembly line without cutting brackets or adding shims—simply turn the rear screw to set the exact 0–100 mm stroke end.
Adjust the push stroke of a diverter gate on a packaging conveyor when switching between box sizes, reducing mechanical changeover time to seconds.
Take up gradual wear on a clamping jaw or press tool by advancing the stroke end slightly, maintaining consistent grip force without replacing the cylinder.
Choose this 63 mm bore when a 50 mm cylinder’s 982 N push at 0.5 MPa is marginal and you need the 1559 N class for confident movement of medium fixtures or clamps. If your stroke is fixed and you never need in-situ adjustment, the simpler SC63X100 saves cost and length. For replacement, match an AirTAC SCJ63X100-100S with the same 100 mm nominal stroke, 100 mm adjust range, PT thread, and built-in magnet; the basic mounting uses the tie-rod nuts for direct attachment. At this 100 mm stroke, rod bending is not a primary concern, but for offset loads add an external guide or switch to a guided cylinder.
Adjustable-stroke checklist
At 0.5 MPa, it produces 1559 N of push force and 1402 N of pull force because the single rod reduces the piston area on the return side. At the maximum operating pressure of 0.9 MPa, push force reaches 2805 N.
Yes, if you need field-adjustable stroke-end control. The SCJ63X100-100S matches the 100 mm nominal stroke and adds a 0–100 mm adjustment screw. Ensure your mounting clears the slightly longer rear cap, and note that the built-in magnet requires sensor-compatible tie-rod bands.
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