Airtac SCJ100 Standard Cylinder SCJ100X300-30SN
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X300-30SN is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø100mm bore, 300mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke300 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X300-30SN
The SCJ100X300-30SN is a 100 mm bore, double-acting, single-rod pneumatic cylinder with a 300 mm nominal stroke and a 30 mm rear adjusting screw. This allows the stroke end position to be fine-tuned on the machine without replacing the cylinder. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, making it a powerful actuator for heavy industrial tasks.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors and is sealed with NBR (nitrile) for standard temperature ranges of -20 to +70 °C. The 25 mm diameter piston rod and PT1/2 port thread ensure robust air flow, while the 29 mm air cushion at each end provides smooth deceleration for the 300 mm stroke.
Airtac SCJ100 Standard Cylinder SCJ100X300-30SN Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X300-30SN |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 300 mm |
| Stroke adjustment | Up to 30 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 SCJ100X300-30SN
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ100X300-30SN Is Used
Commissioning & Setup
The 30 mm rear adjuster lets technicians precisely dial in the stroke end during initial machine setup, compensating for stack-up tolerances in welded frames or tooling plates without needing shims.
Heavy Part Positioning
Ideal for adjusting the final stop position of a heavy transfer arm or pusher on a conveyor line. The 3927 N push force at 0.5 MPa easily moves large components, and the stroke can be fine-tuned for different product sizes.
Wear Compensation
In high-cycle clamping or pressing fixtures, the adjustable stroke can be periodically shortened to compensate for wear on contact surfaces, maintaining consistent clamping force without replacing the entire actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X300-30SN the Right Cylinder?
Choose the SCJ100X300-30SN when you need a powerful, field-adjustable stroke end within a 30 mm range. If your force requirement is lower, stepping down to an 80 mm bore (2513 N push at 0.5 MPa) can reduce air consumption. For a fixed-stroke application without the need for adjustment, the standard SC100X300 cylinder is a simpler alternative. This model is a direct replacement for any AirTAC SCJ100X300-30SN with PT ports, basic mounting, and a magnet.
With a 300 mm stroke, be mindful of side-loading on the 25 mm rod. For applications with significant lateral forces, use an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ100X300-30SN FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa. The pull force is slightly lower at 3681 N at 0.5 MPa because the 25 mm piston rod reduces the effective piston area on the return stroke.
Yes, the SCJ100X300-30SN shares the same mounting footprint and port size as an SC100X300. The body length is slightly longer to accommodate the adjusting screw. Ensure your machine has clearance for the rear adjuster and that you match the PT port thread and magnet option.
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