The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X180-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø63mm bore, 180mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X180-10 puts a 10 mm field-adjustable stroke end into a 63 mm bore double-acting package, giving you 1559 N of push force at 0.5 MPa (2805 N at 0.9 MPa). Its rear-cap screw lets you dial in the exact end position without swapping the cylinder or adding hard stops—ideal for commissioning trials and format changeovers where a few millimetres make the difference.
This model ships with a built-in magnet (-S suffix), so CMSG/DMSG/EMSG sensors clamp directly onto the 197 mm tie-rod body for clean end-of-stroke or mid-stroke sensing. The 20 mm rod runs on PT1/4 ports, and the 28 mm air cushion decelerates the piston quietly at both ends. Pull force is 1402 N at 0.5 MPa, matching the standard SC single-rod thrust profile.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X180-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 180 mm |
| Stroke adjustment | Up to 10 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. |
| ×180 | Nominal (maximum) stroke length in mm. |
| -10 | 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.
During machine bring-up, the 10 mm rear screw lets technicians dial in the exact stroke end position without removing the cylinder or machining hard stops, cutting setup time.
On pneumatic clamping fixtures, the adjustable stroke compensates for jaw or pad wear over thousands of cycles, maintaining consistent clamping pressure without shims.
When a packaging line switches between product sizes, the SCJ63X180-10 adjusts the pusher stroke end in seconds, avoiding the need for multiple fixed-stroke cylinders.
Step up to an 80 mm bore if you need more than 1559 N push at 0.5 MPa (the SCJ80 delivers 2513 N at the same pressure). For purely fixed-stroke tasks where no field adjustment is needed, the standard SC63 is a simpler choice. The SCJ63X180-10 replaces any AirTAC SCJ63 with a 180 mm nominal stroke and 10 mm adjust range, PT ports, and magnet—match the bore, stroke, adjust range, port thread, and magnet option exactly. At 180 mm stroke, rod bending is rarely a concern in guided applications, but if the load applies a side force, pair the cylinder with an external guide rail or switch to a guided cylinder.
Adjustable-stroke checklist
At 0.5 MPa the push force is 1559 N and the pull force is 1402 N (the difference is due to the 20 mm single rod). At the maximum operating pressure of 1.0 MPa, theoretical push reaches 3118 N. Always size your cylinder using the pull force if the rod is under tension.
Only if the application benefits from the rear stroke-end adjuster. The SCJ body length A is 197 mm, slightly longer than the fixed-stroke SC. The mounting footprint, rod thread (M16x1.5), and port size (PT1/4) are identical, but you must ensure the extra length and the adjusting screw clearance fit your machine.
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