The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X275-100S 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, 275mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X275-100S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, giving you a full 100 mm of end-position tuning on a 275 mm nominal stroke. Its 63 mm bore generates 1559 N of push force at 0.5 MPa, and the 20 mm piston rod provides robust guidance for mid-range automation tasks.
A rear-cap adjusting screw lets you dial in the exact stroke end without swapping the cylinder or adding external hard stops—ideal for commissioning, format changes, and wear take-up. The built-in magnet (-S) accepts CMSG/DMSG/EMSG sensors directly on the tie-rod barrel, and the standard PT1/4 ports and 28 mm air cushion ensure smooth, reliable cycling.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X275-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 275 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. |
| ×275 | 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.
The 100 mm adjustment range allows engineers to precisely set the stroke end during machine setup, eliminating the need to stock multiple fixed-stroke cylinders for trial-and-error fitting.
On packaging or assembly lines, the stroke can be quickly re-adjusted for different product sizes or formats without mechanical disassembly, minimizing downtime between batches.
The rear adjusting screw can be used to take up mechanical play or compensate for tooling wear over time, maintaining precise end-stop positioning without replacing the actuator.
Choose the SCJ63 bore when 1559 N of push at 0.5 MPa fits your load; if you need more force, step up to the 80 mm bore which delivers 2513 N. For a simpler, fixed-stroke application where no field adjustment is required, the standard SC63 cylinder is a direct alternative. This SCJ63X275-100S replaces any AirTAC SCJ63 adjustable-stroke cylinder with a 275 mm nominal stroke, 100 mm adjust range, PT ports, basic mounting, and a magnet sensor. At a 275 mm stroke, ensure the rod is not subjected to high side loads; if lateral forces are present, add an external guide rail or consider a guided cylinder.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder provides 1559 N of push force and 1402 N of pull force. The maximum operating pressure is 1.0 MPa, yielding a theoretical push force of 2805 N. The adjustable stroke screw does not alter the cylinder's force output.
Yes, provided the mounting and porting are compatible. The SCJ63X275-100S has a slightly longer body length (A=197 mm) than a fixed-stroke SC63 to house the adjustment mechanism. It is a direct replacement for another AirTAC SCJ63 with a 275 mm nominal stroke, 100 mm adjustment range, PT ports, and a magnet sensor.
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