The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X750-100S 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, 750mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X750-100S is a double-acting, single-rod pneumatic cylinder with a 63 mm bore and a nominal 750 mm stroke, featuring a rear-cap adjusting screw that provides up to 100 mm of field-adjustable stroke reduction. This model delivers a push force of 1559 N at 0.5 MPa and up to 2805 N at the 0.9 MPa maximum operating pressure, using a 20 mm diameter piston rod with an M16x1.5 thread. The built-in magnet (S suffix) allows direct mounting of CMSG/DMSG/EMSG sensors along the tie-rod barrel for reliable end-of-stroke detection.
The 100 mm adjustment range is ideal for commissioning and format changeovers on long-stroke machinery, letting technicians fine-tune the end position without dismounting the cylinder. With a 28 mm air cushion and a body length A of 197 mm plus stroke, this genuine AirTAC SCJ cylinder is built for repeatable performance in demanding industrial sequences.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X750-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 750 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. |
| ×750 | 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.
The 100 mm adjustment screw lets commissioning engineers dial in the exact stroke end position on a 750 mm stroke actuator without swapping hard stops, speeding up line start-up.
On packaging or sorting conveyors, operators can quickly re-set the cylinder's end stop to handle different product sizes, reducing changeover time between batches.
In long-running clamping or pressing fixtures, the adjustable stroke can be tweaked to take up mechanical wear in tooling, maintaining consistent contact pressure without replacing parts.
Choose this 63 mm bore for applications needing between 1400 N and 2800 N of force. If your load requires less force, the SCJ50 series offers 982 N of push at 0.5 MPa in a lighter package; for heavier loads, the SCJ80 steps up to 2513 N. A fixed-stroke SC cylinder is a simpler, more cost-effective choice when the stroke length never needs field adjustment. For a direct replacement, match the 63 mm bore, 750 mm nominal stroke, 100 mm adjust range, PT port thread, and the built-in magnet. With a 750 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 during extension.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, it generates 1559 N of push force and 1402 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 2805 N. The pull force is lower because the 20 mm rod reduces the effective piston area on the return stroke.
Yes, provided the bore (63 mm), nominal stroke (750 mm), and port thread (PT) match. The SCJ adds a rear adjusting screw for field-adjustable stroke end, making it a direct upgrade when you need to fine-tune the position. Ensure the slightly longer body length A (197 mm + stroke) fits your mounting space.
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