Airtac SCJ100 Standard Cylinder SCJ100X350-20S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-20S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 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-20 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-20S
The SCJ100X350-20S delivers 3927 N of push force at 0.5 MPa, placing it in a robust force class for pressing, clamping, and material handling tasks. Its 20 mm rear adjusting screw allows operators to fine-tune the stroke end position on the fly, making it invaluable for commissioning new machinery or accommodating slight variations in workpiece dimensions without swapping the cylinder.
This model features a 25 mm diameter piston rod and a 29 mm air cushion for smooth, controlled deceleration. The built-in magnet enables direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel, simplifying position feedback integration. The body length is 245 mm.
Airtac SCJ100 Standard Cylinder SCJ100X350-20S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 mm |
| Stroke adjustment | Up to 20 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 SCJ100X350-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ100X350-20S Is Used
Product Diverting Gates
The adjustable stroke lets technicians dial in the exact gate opening for different package sizes on a conveyor line, preventing jams without needing to reprogram a servo drive.
Clamp Stroke Take-Up
In high-cycle clamping fixtures, the 20 mm screw compensates for pad wear over time, maintaining consistent clamping pressure without manual shimming or replacing the cylinder.
Press-Fit Depth Control
Fine-tune the final press depth during assembly trials. The 3927 N push force at 0.5 MPa is ideal for seating bearings or bushings, with the screw acting as a positive end stop.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-20S the Right Cylinder?
Choose this 100 mm bore when your application needs a push force around 3927 N at 0.5 MPa. If you require less force, the 80 mm bore SCJ offers 2513 N of push, providing a more compact and energy-efficient alternative. For higher demands, stepping up to the 125 mm bore provides 6136 N. The 350 mm stroke is well within the 1500 mm maximum for this bore. For strokes this long, be mindful of side-loading on the 25 mm rod; if the load is not perfectly guided, consider adding an external guide rail or switching to a guided cylinder to prevent rod bending and seal wear. This unit directly replaces any AirTAC SCJ100X350-20S with a PT port and basic mounting.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ100X350-20S FAQ
At the standard 0.5 MPa operating pressure, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 7068 N.
Yes, provided the bore (100 mm), port thread (PT), and mounting style match. The SCJ body is slightly longer to house the adjusting screw. You will gain the ability to shorten the stroke end by up to 20 mm in the field.
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