Airtac SCJ100 Standard Cylinder SCJ100X80-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-30S 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, 80mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke80 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-30S
The AirTAC SCJ100X80-30S is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides a 30 mm field-adjustable stroke range. This 100 mm bore model delivers 3927 N of push force at 0.5 MPa, making it a powerful choice for heavy industrial positioning tasks where the end-stop needs fine-tuning without replacing the cylinder.
A built-in magnet (suffix -S) is integrated into the piston, allowing direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors on the tie-rod barrel for reliable end-of-stroke detection. The 25 mm diameter piston rod and PT1/2 port thread ensure robust air flow, while the 29 mm air cushion decelerates the load smoothly at the stroke end.
Airtac SCJ100 Standard Cylinder SCJ100X80-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 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 SCJ100X80-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SCJ100X80-30S Is Used
End-Stop Commissioning
Fine-tune the retract stroke end position by up to 30 mm during initial machine setup, eliminating the need to fabricate custom external hard stops for heavy pressing or clamping stations.
Wear Compensation
On high-cycle material handling pushers, the adjusting screw can be advanced to compensate for wear on contact pads or tooling, maintaining precise placement without immediate part replacement.
Format Changeover
Quickly adjust the stroke end for different product sizes on a packaging line. The 30 mm range allows operators to switch between formats in minutes using only a wrench, maximizing production uptime.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-30S the Right Cylinder?
Choose the SCJ100X80-30S when you need a high-force, field-adjustable stroke for commissioning or format changes. If 3927 N of push force at 0.5 MPa is more than required, stepping down to the 80 mm bore reduces push force to 2513 N. For applications needing a fixed, non-adjustable stroke, the standard SC100X80 model is a simpler, more economical alternative. This SCJ cylinder is a direct replacement for another AirTAC SCJ100X80-30 with PT ports, basic mounting, and a magnet.
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 SCJ100X80-30S FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. The maximum push force at the 0.9 MPa operating limit is 7068 N. Because it is a single-rod cylinder, the push force is greater than the pull force due to the rod area on the retract side.
You can, if the 30 mm stroke adjustment range is beneficial. The SCJ100X80-30S has the same mounting footprint and port size as an SC100, but the body length A is 245 mm, which is slightly longer. Ensure the extra length and the rear adjusting screw are accommodated in your machine envelope.
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