The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X130-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø63mm bore, 130mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X130-50S is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly in your hands. Its rear-cap adjusting screw provides a 50 mm adjustable range, letting you dial in the exact 130 mm nominal stroke end position without swapping the cylinder or adding external hard stops. At 0.5 MPa, this 63 mm bore unit delivers 1559 N of push force and 1402 N on the pull stroke, backed by a 28 mm air cushion to decelerate the piston smoothly.
This model includes a built-in magnet, so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke sensing. The 20 mm piston rod features an M16x1.5 male thread for knuckle mounting, and PT1/4 ports handle the air supply. With a body length A(SCJ) of 197 mm, it fits into layouts where a compact adjustable solution is needed, operating from 0.15 to 1.0 MPa.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X130-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 130 mm |
| Stroke adjustment | Up to 50 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. |
| ×130 | Nominal (maximum) stroke length in mm. |
| -50 | 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 commissioning, the 50 mm screw adjustment lets technicians quickly fine-tune the push stroke end position for precise part engagement without iterative cylinder swaps, saving hours of setup time.
On packaging lines handling multiple box sizes, the adjustable stroke allows operators to reset the pusher stroke end for a new format in seconds, minimizing changeover downtime between production runs.
In clamping or pressing fixtures, the stroke can be incrementally extended over time to compensate for pad or tooling wear, maintaining consistent clamping force without replacing the actuator.
Step up to an 80 mm bore if your application demands more than the 2805 N push force this 63 mm unit provides at 0.9 MPa; the SCJ80 delivers 4523 N. For a simpler, fixed-stroke solution where adjustment is never required, the standard SC63 series is the direct alternative. This SCJ63X130-50S is a direct dimensional and functional replacement for any AirTAC SCJ63 cylinder with a 130 mm nominal stroke, 50 mm adjust range, PT ports, basic mounting, and the -S magnet option. Because the stroke exceeds 100 mm, ensure the rod is not subjected to high side loads; if lateral force is present, pair the cylinder with an external guide rail or consider a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this cylinder produces 1559 N of push force and 1402 N of pull force. The maximum theoretical push force at 1.0 MPa is 318 kgf. Because it is a single-rod cylinder, the push force is always greater than the pull force due to the rod area differential.
Yes, this is a direct replacement for any AirTAC SCJ63 adjustable-stroke cylinder that matches the 130 mm nominal stroke, 50 mm adjust range, PT port thread, basic mounting style, and built-in magnet. Verify that your existing unit also uses the M16x1.5 rod thread and PT1/4 supply ports.
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