Airtac SCJ100 Standard Cylinder SCJ100X300-30
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X300-30 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 SCJ100X300-30
The SCJ100X300-30 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, offering a 30 mm tuning range via the rear-cap adjusting screw. With a 100 mm bore, it generates 3927 N of push force at 0.5 MPa and up to 7068 N at the maximum operating pressure of 0.9 MPa, making it a powerful actuator for heavy industrial tasks.
The 25 mm piston rod and PT1/2 ports deliver robust, repeatable motion, while the adjustable air cushion decelerates the 300 mm nominal stroke smoothly. The tie-rod construction and 245 mm base body length provide a durable, serviceable platform where the stroke can be fine-tuned on the machine without swapping the cylinder.
Airtac SCJ100 Standard Cylinder SCJ100X300-30 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X300-30 |
|---|---|
| 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 SCJ100X300-30
| 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 SCJ100X300-30 Is Used
Commissioning & Setup
The 30 mm rear adjustment screw lets technicians dial in the exact end-stop position during initial machine setup without removing the cylinder or fabricating shims, saving hours of mechanical work.
Format Changeovers
On packaging or sorting lines, the adjustable stroke allows operators to quickly adapt the cylinder's stopping point for different box sizes or pallet types, minimizing downtime between production runs.
Wear Compensation
In high-cycle clamping or pressing fixtures, the stroke can be incrementally adjusted to compensate for tooling wear or material thickness variations, maintaining consistent clamping force over the tool's life.
Is the Airtac SCJ100 Standard Cylinder SCJ100X300-30 the Right Cylinder?
This 100 mm bore cylinder is a high-force workhorse; if your application requires less force, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa, while a 125 mm bore increases it to 6136 N. The SCJ is the right choice when you need to fine-tune the stroke end position during commissioning or for different product formats—a fixed-stroke SC cylinder cannot offer this field adjustment. For applications needing a rigid, guided motion to handle the 300 mm stroke's potential side-load, consider pairing this with an external guide rail or selecting a guided cylinder.
As a direct replacement, match the 100 mm bore, 300 mm nominal stroke, and 30 mm adjustment range. Ensure the port thread is PT, and verify your mounting style; this basic version uses no mounting bracket, but FA, LB, or TC mounts can be added. A magnet-equipped model (SCJ100X300-30S) is required if you need to use CMSG/DMSG sensors for end-of-stroke detection.
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 SCJ100X300-30 FAQ
At 0.5 MPa, the push force is 3927 N. Because it's a single-rod cylinder, the pull force is slightly lower at 3681 N due to the rod area. The maximum push force at 0.9 MPa is 7068 N.
Yes, if you need the 30 mm stroke-end adjustability. It is a direct dimensional replacement for an SC100X300, but the body length is slightly longer to house the adjusting screw. Ensure the bore, nominal stroke, and port size (PT1/2) match your current setup.
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