The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X600-100 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, 600mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X600-100 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, delivering 1559 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides up to 100 mm of retraction from the 600 mm nominal maximum, letting you fine-tune the end position during commissioning or format changes without swapping the cylinder. The 20 mm diameter piston rod and 28 mm air cushion length suit mid-range automation tasks requiring repeatable deceleration.
This 63 mm bore tie-rod cylinder operates on filtered air from 0.15 to 1.0 MPa and uses PT1/4 ports. The standard TPU seals work from -20 to +70 °C. With a body length A of 197 mm, it is a compact solution for stroke-end adjustment. For position sensing, order the -S magnet version to clamp CMSG or DMSG sensors directly onto the barrel.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X600-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 600 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. |
| ×600 | 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.
Use the 100 mm rear adjust screw to precisely dial in the retract end position on assembly fixtures, eliminating the need for shims or external hard stops during setup.
Quickly adapt the stroke length for different product sizes on packaging or sorting lines. The adjustable stroke allows operators to reset the push-off position without mechanical disassembly.
In long-running clamping or pressing operations, the screw can be advanced to take up mechanical wear in tooling, maintaining consistent contact force and cycle precision over time.
Choose this 63 mm bore when your application needs around 1559 N of push force at standard plant pressure. If you need more force, step up to the 80 mm bore (2513 N push at 0.5 MPa); for a lighter, more compact design, the 50 mm bore provides 982 N. The 100 mm adjust range is ideal for machines that undergo frequent changeovers. For applications requiring a fixed, non-adjustable stroke, the standard SC63X600 cylinder is a simpler alternative. This model is a direct replacement for any AirTAC SCJ63X600-100 cylinder with PT ports and basic mounting. At a 600 mm stroke, ensure the rod is supported against side loads; use an external guide rail or switch to a guided cylinder if lateral forces are present.
Adjustable-stroke checklist
At 0.5 MPa, it delivers 1559 N pushing and 1402 N pulling. The maximum push force at the 0.9 MPa operating limit is 2805 N. The force is identical to a fixed-stroke SC63 cylinder.
No, the SCJ63X600-100 is not designed for position holding. If air pressure is lost or the valve is centered, the piston will drift. The rear screw only sets the stroke end limit and the air cushion only decelerates the piston. You need an external rod lock or pilot-operated check valve for static load holding.
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