The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X170-100 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, 170mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X170-100 is a 63 mm bore double-acting, single-rod pneumatic cylinder with a field-adjustable stroke. A rear-cap adjusting screw lets you shorten the stroke end by up to 100 mm, giving an effective stroke range of 70–170 mm without swapping the cylinder. This model delivers 1559 N of push force and 1402 N of pull force at 0.5 MPa, using a 20 mm diameter piston rod with M16×1.5 male threads.
Body length A for the SCJ63 series is 197 mm, and the integrated air cushion is 28 mm long to decelerate the piston smoothly. The unit operates on 40 µm filtered air from 0.15–1.0 MPa and is rated for -20 to +70 °C with its standard TPU seals. PT1/4 ports and basic mounting are standard on this code, making it a direct drop-in where stroke fine-tuning is needed during commissioning or format changes.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X170-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 170 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. |
| ×170 | 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.
Fine-tune the end position of a clamping or pressing tool during machine setup. The 100 mm adjustment range lets technicians dial in the exact stroke without fabricating mechanical stops.
Adjust the stroke end when a packaging line switches between different box sizes. The rear screw provides quick, repeatable stroke changes without dismounting the cylinder or changing tooling.
Take up mechanical wear in a linkage or gripper mechanism over time. The adjustable stroke end lets operators restore the original end position without replacing the actuator or adding shims.
Choose the SCJ63 when you need roughly 1560 N of push force at standard plant pressure and the ability to dial in the stroke end position on the machine. If your load requires more force, stepping up to an 80 mm bore provides 2513 N push at 0.5 MPa; if you need less, a 50 mm bore delivers 982 N. For applications where the stroke is permanently fixed, a standard SC63 cylinder eliminates the adjusting screw and is slightly shorter overall.
This is a genuine AirTAC SCJ adjustable-stroke cylinder. To replace an existing unit, match the 63 mm bore, 170 mm nominal stroke, 100 mm adjust range, PT ports, and basic mounting. The 170 mm stroke is well within the 1500 mm maximum standard stroke for this bore, so no special side-load concerns apply for short-stroke, axially aligned loads.
Adjustable-stroke checklist
A rear-cap adjusting screw sets the stroke end position. The 170 mm nominal stroke is the maximum; turning the screw shortens the effective stroke by up to 100 mm, giving you a field-adjustable range of 70–170 mm. It adjusts only the stroke end, not the force or speed.
At 0.5 MPa, push force is 1559 N and pull force is 1402 N. At the maximum operating pressure of 1.0 MPa, theoretical push force reaches 2805 N. Because this is a single-rod cylinder, push force is always greater than pull force due to the rod area on the return side.
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