The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X160-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø63mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X160-75 is a double-acting, single-rod pneumatic cylinder with a 63 mm bore and a nominal 160 mm stroke, featuring a rear-cap adjusting screw that provides a 75 mm adjustable range. This allows you to fine-tune the stroke end position on the machine without swapping the cylinder, delivering a push force of 1559 N at 0.5 MPa and up to 2805 N at the maximum operating pressure of 0.9 MPa.
The 20 mm diameter piston rod and 28 mm air cushion work together to manage deceleration, while the PT1/4 ports and M16x1.5 rod thread ensure straightforward integration. The body length A for this SCJ series is 197 mm, making it a compact solution for applications where the stroke must be dialed in during commissioning or changeovers.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X160-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 75 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. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -75 | 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 75 mm adjustment range lets technicians quickly dial in the exact stroke end position during machine commissioning, eliminating the need to fabricate custom external hard stops.
On packaging or sorting lines, the adjustable stroke allows operators to accommodate different product sizes by simply turning the rear screw, reducing downtime between production runs.
In clamping or pressing fixtures, the stroke can be incrementally extended over time to compensate for tooling or pad wear, maintaining consistent contact pressure without replacing the cylinder.
Choose this SCJ63 model when you need a mid-range force output with the flexibility to adjust the stroke end by up to 75 mm. If your force requirement is lower, the 50 mm bore SCJ series provides 982 N of push at 0.5 MPa; for a step up in force, the 80 mm bore delivers 2513 N. For a direct replacement, match the 63 mm bore, 160 mm nominal stroke, 75 mm adjust range, PT port thread, and basic mounting configuration.
At a 160 mm stroke, side-loading is generally manageable, but for applications with significant off-axis loads, consider an external guide rail or a guided cylinder to protect the rod bearing and ensure long seal life. If your application does not require stroke adjustment, the fixed-stroke SC63 series offers a simpler, more economical alternative.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The maximum push force at the 0.9 MPa operating limit is 2805 N. Because it is a single-rod cylinder, the push force is greater than the pull force due to the rod area on the return side.
This is a direct replacement for any AirTAC SCJ63 cylinder with a 160 mm nominal stroke and a 75 mm adjustment range, provided the port thread (PT), mounting (basic), and magnet option (none) match. It is a tie-rod design and is not dimensionally interchangeable with ISO 15552 cylinders.
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