The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X110-50S 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, 110mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X110-50 is a double-acting, single-rod pneumatic cylinder that puts fine stroke adjustment at your fingertips. With a 50 mm rear-end screw range, you can dial in the exact stroke end position for commissioning or changeovers without swapping the cylinder—backed by a solid 1559 N of push force at 0.5 MPa from its 63 mm bore.
This model includes a built-in magnet, so CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke sensing. The 20 mm rod, PT1/4 ports, and 28 mm air cushion handle deceleration smoothly, while the 197 mm body length keeps the footprint compact for its force class.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X110-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 110 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. |
| ×110 | 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.
The 50 mm adjustment screw lets technicians precisely set the retract end position during machine setup, eliminating the need for shims or custom hard stops.
Quickly adapt the stroke for different product sizes on packaging or sorting lines. The magnetic piston enables sensor-based confirmation of the new end position.
In clamping or pressing fixtures, the adjustable stroke can be extended slightly over time to compensate for pad or tooling wear, maintaining consistent contact force.
Step up to an 80 mm bore if your load exceeds the SCJ63's 1559 N push at 0.5 MPa—the SCJ80 delivers 2513 N at the same pressure. For fixed-stroke applications where the end position never changes, a standard SC63 cylinder is a simpler, lower-cost alternative. When replacing this unit, match the 63 mm bore, 110 mm nominal stroke, 50 mm adjust range, PT ports, and the -S magnet option; the basic mount requires no additional bracket. At 110 mm stroke, rod bending is minimal, but if the load has a significant side component, pair the cylinder with an external guide rail.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder provides 1559 N pushing force and 1402 N pulling force. The maximum operating force at 0.9 MPa is 2805 N push. The adjustable screw does not change the force output.
No, as a standard double-acting cylinder, the piston will drift or drop if pressure is exhausted or the valve centers. The air cushion only decelerates the piston, and the stroke screw only sets the end position. For load holding without pressure, you need an external rod lock or pilot-operated check valve.
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