The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X110-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø63mm bore, 110mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X110-30 is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, giving you up to 30 mm of field-adjustable stroke-end control without removing the cylinder from the machine. Its 63 mm bore generates 1559 N of push force at 0.5 MPa, while the 20 mm piston rod and 28 mm air cushion deliver smooth, controlled deceleration for mid-range automation tasks.
Built on a proven tie-rod platform, this adjustable-stroke actuator uses a PT1/4 port and an M16x1.5 rod thread. The body length A for the SCJ series is 197 mm, providing a compact envelope for applications where you need to dial in the exact stop position during commissioning, format changeovers, or after mechanical wear.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X110-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 110 mm |
| Stroke adjustment | Up to 30 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. |
| ×110 | Nominal (maximum) stroke length in mm. |
| -30 | 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 30 mm rear screw lets technicians fine-tune the actuator's stop point in seconds. No need to shim brackets or swap cylinders to hit the exact stroke—just turn the screw and lock it.
On packaging or assembly lines that run multiple SKUs, operators can quickly adjust the stroke end to match a new product length. The SCJ63X110-30 eliminates the downtime of replacing fixed-stroke cylinders between batches.
In clamping or pressing fixtures, tooling surfaces wear over time. The adjustable stroke lets you extend the rod's end position slightly to maintain consistent contact force, extending the life of both the tooling and the cylinder.
Choose the SCJ63 when you need the 1559 N push force at 0.5 MPa that a 63 mm bore provides. If your load requires less force, stepping down to a 40 mm bore (628 N push) saves air consumption; for heavier work, the 80 mm bore delivers 2513 N push. This adjustable-stroke model is ideal when the end position must be tuned on-site—if your stroke is fixed and never changes, a standard SC63 fixed-stroke cylinder is a simpler, lower-cost alternative. For a direct replacement, match the 63 mm bore, 110 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting style. At a 110 mm stroke, rod deflection is minimal, but for strokes over 300 mm, consider an external guide rail or a guided cylinder to protect the rod from side loads.
Adjustable-stroke checklist
At 0.5 MPa, the 63 mm bore produces 1559 N of push force and 1402 N of pull force (the pull force is lower because the 20 mm rod reduces the effective piston area on the return stroke). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 318 kgf.
Yes, provided the mounting footprint and port size match. The SCJ body is slightly longer to house the adjusting screw, but the bore, rod thread (M16x1.5), and port (PT1/4) are identical. Ensure your application can use the 30 mm adjustable range and that you order the same mounting style and magnet option.
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