Airtac SCJ50 Standard Cylinder SCJ50X160-100S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X160-100S 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. Ø50mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke160 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X160-100S
The SCJ50X160-100S is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a nominal 160 mm stroke, delivering 982 N of push force at 0.5 MPa. Its defining feature is the rear-cap adjusting screw, which provides up to 100 mm of field-adjustable stroke-end reduction, allowing machine builders to fine-tune the piston stop position without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the tie-rod barrel for reliable end-of-stroke detection. The 20 mm diameter piston rod and PT1/4 port ensure robust, repeatable performance in compact automation cells, with an adjustable air cushion that decelerates the 1767 N peak thrust at 0.9 MPa for smooth cycle rates.
Airtac SCJ50 Standard Cylinder SCJ50X160-100S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X160-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 160 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.
Theoretical Output Force (Ø50mm)
| 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.
Model Code: Airtac SCJ50 Standard Cylinder SCJ50X160-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×160 | 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.
Where the Airtac SCJ50 Standard Cylinder SCJ50X160-100S Is Used
Commissioning & Process Tuning
Engineers can precisely dial in the stroke end position during initial machine setup, compensating for assembly tolerances and optimizing the actuator's throw without needing to machine custom stops.
Adjustable Part Stops
Used as a pneumatic stop gate on a conveyor, the 100 mm adjustment range allows operators to quickly reposition the stop for different product sizes, reducing changeover time between batches.
Wear Compensation in Clamping
In a clamping or pressing fixture, the adjustable stroke can be periodically shortened to take up mechanical wear on tooling or the workpiece contact surface, maintaining consistent clamping force over time.
Is the Airtac SCJ50 Standard Cylinder SCJ50X160-100S the Right Cylinder?
Choose the SCJ50X160-100S when you need a mid-range 50 mm bore cylinder with the flexibility to adjust the stroke end by up to 100 mm during commissioning or format changes. If your application requires more push force, stepping up to the SCJ63 bore provides 1559 N at 0.5 MPa. For applications where the stroke is fixed and never needs field adjustment, the standard SC50X160 fixed-stroke cylinder is a simpler, cost-effective alternative.
For a direct replacement, match the 50 mm bore, 160 mm nominal stroke, 100 mm adjust range, PT port thread, and the built-in magnet. The basic mounting style accepts the SCJ mounting subset, including FA front flange (F-SC50FA), LB foot (F-SC50LB), or TC centre trunnion (F-SC50TC). At this 160 mm stroke, rod bending from side loads is a concern; use an external guide rail or switch to a guided cylinder if the load is not purely axial.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ50 Standard Cylinder SCJ50X160-100S FAQ
The push force is 982 N at 0.5 MPa, 1374 N at 0.7 MPa, and reaches a maximum of 1767 N at the 0.9 MPa operating limit. The pull force is lower due to the single 20 mm rod, providing 825 N at 0.5 MPa.
The rear adjusting screw mechanically limits the piston's stroke end by up to 100 mm, setting a precise, repeatable stop position. It is not a locking device; if air pressure is lost, the piston will not hold its position. You must add an external rod lock or pilot-operated check valve for load holding.
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