Airtac SCJ100 Standard Cylinder SCJ100X400-10
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X400-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø100mm bore, 400mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke400 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X400-10
The SCJ100X400-10 is a double-acting, single-rod pneumatic cylinder with a 100 mm bore and a 400 mm nominal stroke, featuring a rear-cap adjusting screw that provides 10 mm of field-adjustable stroke-end reduction. This allows fine-tuning of the piston stop position without removing the cylinder from the machine, making it ideal for commissioning and format changeovers. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, with a 25 mm piston rod and PT1/2 ports.
The SCJ100 uses a durable tie-rod construction with an adjustable air cushion to decelerate the piston smoothly. The body length (A dimension) is 245 mm, and the cylinder operates within a standard temperature range of -20 to +70 °C with TPU seals. For position sensing, a magnet can be added by ordering the -S suffix variant, enabling the use of CMSG or DMSG sensors.
Airtac SCJ100 Standard Cylinder SCJ100X400-10 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X400-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 400 mm |
| Stroke adjustment | Up to 10 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 SCJ100X400-10
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ100X400-10 Is Used
End-Stop Commissioning
Fine-tune the retract end position by up to 10 mm during initial machine setup, allowing operators to dial in the exact stopping point for part placement without mechanical rework.
Wear Compensation
On high-cycle packaging lines, the adjusting screw can be turned to take up mechanical slack or compensate for gripper pad wear, maintaining consistent pick-and-place accuracy over time.
Format Changeover
Quickly adapt the stroke end for different product sizes on a single production line, reducing downtime between batches by eliminating the need to swap out the cylinder for a different stroke length.
Is the Airtac SCJ100 Standard Cylinder SCJ100X400-10 the Right Cylinder?
Select the SCJ100X400-10 when you need a robust 100 mm bore actuator with a 400 mm working stroke that can be precisely shortened by up to 10 mm during setup. If your application requires a higher force output, stepping up to the 125 mm bore provides 6136 N of push force at 0.5 MPa. For purely fixed-stroke applications where no adjustment is needed, the standard SC100X400 is a more economical choice. At this 400 mm stroke length, be mindful of side-loading on the 25 mm rod; an external guide rail or a guided cylinder should be used if the load is not perfectly axial.
This model is a direct replacement for any existing AirTAC SCJ100X400-10 cylinder with PT ports and basic mounting. When replacing, ensure the bore, nominal stroke, and 10 mm adjustment range match exactly. For mounting, this basic version requires a separate bracket from the SCJ subset, such as the FA front flange (F-SC100FA) or LB foot mount (F-SC100LB).
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ100X400-10 FAQ
The theoretical push force is 3927 N at 0.5 MPa and 5497 N at 0.7 MPa. The pull force on the return stroke is slightly lower due to the rod area, producing 3681 N at 0.5 MPa. For dynamic applications, use a load factor of 50-70% of these values.
Yes, but only if you need the adjustable stroke feature. The SCJ100X400-10 has the same mounting footprint and port size as a fixed-stroke SC100 but includes a rear adjusting screw that adds slightly to the overall length. Ensure your machine has clearance for the longer SCJ body and that the 10 mm adjustment range suits your process.
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