The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X110-100TC 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. Ø50mm bore, 110mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X110-100TC is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a 110 mm nominal stroke, distinguished by its rear-cap adjusting screw that provides a full 100 mm of field-adjustable stroke reduction. This model is built on a tie-rod platform and delivers 982 N of push force at 0.5 MPa, with a 20 mm diameter piston rod. The TC suffix indicates it is supplied with a centre trunnion pivot and the matching TCM1 bracket (F-SC50TC), allowing the cylinder to swing for pivoting load applications.
The adjustable-stroke mechanism lets commissioning engineers fine-tune the end position without swapping the cylinder or adding external hard stops, which is especially useful during format changeovers or when taking up mechanical wear. The body length A(SCJ) is 194 mm, and the cylinder operates on filtered air from 0.15 to 1.0 MPa. With PT1/4 ports and a standard TPU seal, it is suited for ambient temperatures from -20 to +70 °C.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X110-100TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 110 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, 21 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×110 | 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.
A packaging machine uses the 100 mm adjust range to quickly reposition its end stop for different box sizes, eliminating manual stop adjustments and reducing downtime between production runs.
During a new machine build-out, the rear screw is used to precisely dial in the actuator's final stroke end after all components are assembled, accounting for real-world stack-up tolerances.
On a conveyor diverter gate, the adjustable stroke compensates for gradual wear on the gate's rubber edge, maintaining a tight seal without reprogramming the machine controller or replacing the cylinder.
Choose the SCJ50X110-100TC when you need to dial in a precise stroke end position within a 100 mm window on a pivoting assembly. The 50 mm bore provides 982 N of push force at 0.5 MPa; if you need more force, stepping up to a 63 mm bore delivers 1559 N. For less force in a lighter package, the 40 mm bore offers 628 N. This adjustable-stroke unit is the right choice when the application's exact travel is not yet finalised. If your stroke is already fixed and validated, a standard SC fixed-stroke cylinder is a simpler, more cost-effective alternative.
To replace an existing unit, match the 50 mm bore, 110 mm nominal stroke, 100 mm adjust range, PT port thread, and centre trunnion (TC) mounting. This model does not include a magnet; for sensor-based position feedback, select a version with the -S suffix. The centre trunnion mount is ideal for applications where the cylinder body must pivot, but it does not support the rod against side loads. For strokes over 300 mm or significant radial forces, consider adding an external guide rail to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 982 N and the pull force is 825 N. The pull force is lower due to the area of the 20 mm piston rod. The maximum push force at the 1.0 MPa limit is 1767 N.
The rear-cap adjusting screw limits the piston's forward travel, effectively shortening the stroke end by up to 100 mm. It is a mechanical stop, not a locking device. If air pressure is lost or the valve is centred, the cylinder will not hold its position; an external rod lock or pilot-operated check valve is required for load holding.
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