The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X175-100S 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, 175mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X175-100 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the stopping position by up to 100 mm without swapping the unit. Its 63 mm bore delivers 1559 N of push force at 0.5 MPa, making it a solid mid-range actuator for tasks that need repeatable end-point adjustment.
A rear-cap adjusting screw shortens the nominal 175 mm stroke, and the built-in magnet (suffix -S) allows direct mounting of CMSG/DMSG/EMSG sensors along the tie-rod barrel for end-of-stroke detection. The 20 mm rod, PT1/4 ports, and 28 mm air cushion handle deceleration, while the body length A(SCJ) is 197 mm.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X175-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 175 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. |
| ×175 | 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.
Dial in the exact end-of-stroke position during machine commissioning using the 100 mm adjustment range, eliminating the need to fabricate custom hard stops.
Quickly adapt a diverter gate or pusher to different product widths on a packaging line by turning the rear adjusting screw, without dismounting the cylinder.
Take up mechanical play in a clamping or pressing fixture over time by advancing the stroke end, maintaining consistent contact force as tooling wears.
Choose this 63 mm bore when your application needs roughly 1560 N of push force at standard plant pressure. If you can work with less force, stepping down to the 40 mm bore (628 N push at 0.5 MPa) saves space and air consumption; for heavier loads, the 80 mm bore provides 2513 N. The 100 mm adjustment range is ideal for commissioning trials or format changeovers where the end position varies significantly.
For replacement, match an AirTAC SCJ63 cylinder with a 175 mm nominal stroke, 100 mm adjust range, PT ports, and the -S magnet option. Because the 175 mm stroke is moderate, rod bending is not a primary concern, but if the load has a long offset, add an external guide rail to protect the rod and bearing.
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 single rod's area). At the maximum operating pressure of 0.9 MPa, push force reaches 2805 N.
Yes, if you need the ability to adjust the stroke end. The SCJ63X175-100 mounts with the same accessories as the SC series (Basic, FA, LB, or TC) and has identical port and rod threads. Ensure the 100 mm adjustment range suits your process.
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