The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X600-100S 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, 600mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X600-100S is a double-acting, single-rod tie-rod cylinder with a 100 mm rear-cap adjusting screw, giving you field-adjustable stroke control without swapping the unit. With a 63 mm bore, it delivers 1559 N of push force at 0.5 MPa and up to 2805 N at 0.9 MPa, making it a strong candidate for medium-duty automation tasks where the end position needs fine-tuning.
The built-in magnet (S suffix) lets you clamp CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the barrel for reliable, non-contact position sensing. The 20 mm rod, PT1/4 ports, and 28 mm air cushion provide a balanced mix of strength, flow, and end-of-stroke deceleration for a 600 mm nominal stroke.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X600-100S |
|---|---|
| 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.
The 100 mm adjustment range allows engineers to fine-tune the end-stop position on a new machine without fabricating custom shims or hard stops, drastically reducing setup time.
Quickly adapt the stroke for different product sizes on a packaging or sorting line. The rear screw makes mechanical adjustments fast and repeatable between batches.
In clamping or pressing applications, the adjustable stroke can be extended over time to compensate for tooling or pad wear, maintaining consistent process force and position.
Choose the SCJ63X600-100S when you need to dial in a precise stroke end during commissioning or changeovers. If 1559 N of push force at 0.5 MPa is slightly low, stepping up to the 80 mm bore (2513 N push) adds power; if it's more than needed, the 50 mm bore (982 N push) offers a more compact and economical alternative. For a fixed, non-adjustable stroke, the standard SC63X600 is a simpler choice.
For a direct replacement, match the 63 mm bore, 600 mm nominal stroke, 100 mm adjust range, PT port thread, and the built-in magnet. At this 600 mm stroke, be mindful of side loads on the rod. If your application imposes significant lateral force, use an external guide rail or consider 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. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 2805 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
No, the SCJ63X600-100S is a standard double-acting cylinder and will not hold its position if air pressure is lost or the valve is centered. The air cushion only decelerates the piston, and the adjusting screw only sets the stroke end. To hold a load safely without air, you must add a pilot-operated check valve or an external mechanical rod lock.
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