Airtac SCJ100 Standard Cylinder SCJ100X350-50S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø100mm bore, 350mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke350 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-50S
The SCJ100X350-50S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the piston stop position by up to 50 mm without swapping the unit. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, driven by a 25 mm diameter piston rod through PT1/2 ports. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors along the tie-rod barrel for reliable end-of-stroke detection.
This 100 mm bore cylinder uses an adjustable rear-cap screw to set the stroke end within the 50 mm range, making it ideal for commissioning trials, format changeovers, and wear take-up on conveyors, presses, and packaging lines. The body length A(SCJ) is 245 mm, and the air cushion length is 29 mm. Operating pressure spans 0.15–1.0 MPa, with a proof pressure of 1.5 MPa, and the standard speed range is 30–800 mm/s.
Airtac SCJ100 Standard Cylinder SCJ100X350-50S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X350-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ100 Standard Cylinder SCJ100X350-50S Is Used
Commissioning & Fine-Tuning
The 50 mm rear-screw adjustment lets technicians dial in the exact stroke end position during machine setup without removing the cylinder, speeding up production line commissioning.
Format Changeovers
Quickly adapt the stop position for different product sizes on packaging or sorting conveyors. The magnetic piston enables sensor-based confirmation of the new stroke end.
Wear Compensation
In high-cycle clamping or pressing fixtures, the adjustable stroke can be tweaked over time to compensate for tooling or pad wear, maintaining consistent force application.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-50S the Right Cylinder?
Choose the SCJ100X350-50S when you need a 3927 N push force at 0.5 MPa and the ability to adjust the stroke end by up to 50 mm in the field. If your force requirement is lower, step down to the 80 mm bore, which provides 2513 N of push force at the same pressure. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. This model is a direct replacement for another AirTAC SCJ100X350-50S with PT ports, a basic mount, and a magnet.
At a 350 mm nominal stroke, be mindful of side loads that can cause rod bending. If the application involves off-axis forces, pair the cylinder with an external guide rail or consider a guided cylinder to protect the rod and seals.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ100 Standard Cylinder SCJ100X350-50S FAQ
At 0.5 MPa, it generates 3927 N of push force and 3681 N of pull force. The push force is higher 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 7854 N.
Yes, if you need the adjustable stroke feature. The SCJ100X350-50S has the same bore, nominal stroke, and port size as an SC100X350 but adds a rear adjusting screw. Ensure your mounting and sensor setup accommodates the slightly longer SCJ body length A of 245 mm.
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