The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X400-100TC 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, 400mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X400-100TC is a double-acting, single-rod pneumatic cylinder from AirTAC, engineered for applications requiring fine-tuning of the stroke end position. Its rear-cap adjusting screw provides a generous 100 mm of adjustment, allowing operators to dial in the exact stroke needed for commissioning, format changes, or wear compensation without swapping the cylinder. With a 63 mm bore, it delivers a substantial 1559 N of push force at 0.5 MPa, making it a powerful and adaptable workhorse.
This model features a centre trunnion (TC) mount, supplied with the TCM1 bracket (order code F-SC63TC), which allows the cylinder to pivot and is ideal for swinging or articulating loads. The 20 mm piston rod and 28 mm air cushion ensure smooth, reliable operation. At its maximum operating pressure of 0.9 MPa, the push force reaches a robust 2805 N, providing a significant power reserve for demanding tasks.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X400-100TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 400 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. |
| ×400 | 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.
Quickly adjust the end stop for different product heights on a pick-and-place or pressing station, minimizing changeover time between batches.
Fine-tune the opening angle of a diverter gate on a conveyor system to smoothly handle packages of varying sizes without jamming.
Set a precise, repeatable clamping depth for workpieces with slight dimensional variations, preventing damage and ensuring a secure hold.
Choose the SCJ63X400-100TC when you need a powerful, mid-bore cylinder with a long nominal stroke and a wide field-adjustable range. If 1559 N of push force at 0.5 MPa is insufficient, stepping up to an 80 mm bore provides 2513 N. For applications where the stroke is fixed and never needs adjustment, a standard SC63X400 cylinder is a more economical choice. This SCJ model is a direct replacement for another AirTAC SCJ63 cylinder with a 400 mm nominal stroke, 100 mm adjust range, PT ports, and TC mounting. For a 400 mm stroke, be mindful of side-loading on the rod; if the load is not perfectly guided, consider adding an external guide rail or switching to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The push force is greater because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 318 kgf.
Yes, if you need the ability to adjust the stroke end. The SCJ63X400-100TC has the same mounting footprint and port size (PT1/4) as a fixed-stroke SC63, but the body length is slightly longer to accommodate the rear adjusting screw. Ensure the 100 mm adjustment range does not interfere with your machine's structure.
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