The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X60-30 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, 60mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X60-30 is a double-acting, single-rod pneumatic cylinder with a 30 mm field-adjustable stroke end, letting you fine-tune the stopping position 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 the maximum operating pressure of 0.9 MPa.
This tie-rod cylinder uses PT1/4 ports and features an adjustable air cushion (28 mm length) for smooth deceleration. The body length A is 197 mm, making it a compact choice for commissioning trials and format changeovers where the stroke needs to be dialed in precisely on the machine.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X60-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 60 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. |
| ×60 | 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.
The 30 mm rear adjustment screw lets technicians dial in the exact retract position during initial machine setup, compensating for small assembly tolerances without needing to modify tooling.
On packaging lines, quickly adjust the cylinder stroke to handle different box heights or product sizes. The 1559 N push force at 0.5 MPa handles medium-duty pusher and diverter tasks reliably.
In clamping or pressing fixtures, the adjustable stroke can be extended slightly over time to take up pad wear, maintaining consistent contact pressure without replacing the cylinder.
Step up to an 80 mm bore (2513 N push at 0.5 MPa) if you need more force, or down to 50 mm (982 N) for a lighter, faster actuator. Choose this SCJ when you need to adjust the stroke end during setup or after wear; if the stroke is fixed and never changes, the standard SC series is a simpler, cost-effective alternative. For direct replacement, match an SCJ63 with a 60 mm nominal stroke, 30 mm adjust range, PT thread, and the same basic mounting.
At a 60 mm stroke, rod bending is not a primary concern, but for strokes over 300 mm in this bore, always consider an external guide or a guided cylinder to protect the rod from side loads.
Adjustable-stroke checklist
A screw in the rear cap limits how far the piston can retract. You can shorten the nominal 60 mm stroke by up to 30 mm. It only adjusts the stroke end position, not the cylinder's force or speed.
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N (due to the 20 mm rod area). At the maximum operating pressure of 0.9 MPa, push force reaches 2805 N.
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