The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X350-100S 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, 350mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X350-100S delivers 1559 N of push force at 0.5 MPa, making it a robust choice for mid-range pneumatic tasks requiring field-adjustable stroke end positioning. Its rear-cap screw provides a generous 100 mm adjustment range, allowing operators to fine-tune the stroke end without dismounting the cylinder—ideal for commissioning or format changes.
This double-acting, single-rod cylinder features a 20 mm diameter rod and PT1/4 ports. The adjustable air cushion, with a 28 mm cushion length, ensures smooth deceleration. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod body for precise position feedback.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X350-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 350 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. |
| ×350 | 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 technicians quickly set the exact retract or extend stop during machine setup, eliminating the need for shims or external hard stops.
On a packaging line, the adjustable stroke allows operators to rapidly reset the cylinder's end position to accommodate different box sizes without swapping the actuator.
In clamping or pressing operations, the stroke can be easily adjusted to take up mechanical wear on tooling or workpieces, maintaining consistent clamping force over time.
Select the SCJ63X350-100S when you need to dial in a specific stroke end position within a 100 mm window. If your force requirements are lower, the 50 mm bore SCJ series offers 982 N of push force at the same pressure. For applications needing a fixed, non-adjustable stroke, the standard SC63X350 is a direct alternative. This model is a drop-in replacement for another AirTAC SCJ63 cylinder with a 350 mm nominal stroke, 100 mm adjust range, PT ports, and a magnet. For this 350 mm stroke length, be mindful of side loading; if the load is not guided, consider adding an external guide rail to prevent rod bending.
Adjustable-stroke checklist
At 0.5 MPa, this cylinder provides 1559 N of push force and 1402 N of pull force. The push force is higher because the single rod reduces the effective piston area on the return stroke.
The rear cap has an integrated adjusting screw that limits the piston's travel at the stroke end. You can shorten the effective stroke by up to 100 mm from the nominal 350 mm maximum, allowing for precise, tool-free adjustment on the machine.
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