Airtac SCJ100 Standard Cylinder SCJ100X80-30STC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-30STC 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 SCJ100X80-30STC
The SCJ100X80-30STC is a 100 mm bore double-acting single-rod cylinder with a rear adjusting screw that provides up to 30 mm of field-adjustable stroke-end reduction. With a push force of 3927 N at 0.5 MPa and a maximum push of 7068 N at 0.9 MPa, it handles heavy clamping, pressing, and positioning tasks where the final stroke length must be dialled in precisely during commissioning or changeover.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion (TC) pivot mount, supplied with the TCM1 bracket (order code F-SC100TC), allowing the cylinder to swing for articulated linkages. The 25 mm piston rod, PT1/2 ports, and 29 mm air cushion deliver robust, controlled motion in a body length of 245 mm (A dimension).
Airtac SCJ100 Standard Cylinder SCJ100X80-30STC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-30STC |
|---|---|
| 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 SCJ100X80-30STC
| 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 SCJ100X80-30STC Is Used
Commissioning & Fine-Tuning
The 30 mm rear adjuster lets technicians dial in the exact stroke end position during machine setup, eliminating the need to shim or swap cylinders when integrating a 100 mm bore actuator into a new assembly line.
Format Changeovers
On packaging or filling lines, the adjustable stroke allows operators to quickly reset the pusher or stop position for different product sizes, using the 3927 N push force to handle dense cartons or containers.
Wear Compensation
In high-cycle clamping fixtures, the stroke-end screw can be advanced to compensate for pad wear or tooling creep, maintaining consistent clamp force without reprogramming the PLC or replacing the 100 mm cylinder.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-30STC the Right Cylinder?
Choose the SCJ100X80-30STC when you need 3927 N of push force at standard plant pressure and the ability to fine-tune the stroke end by up to 30 mm without swapping the cylinder. If your force requirement drops, the 80 mm bore SCJ80 series provides 2513 N push at 0.5 MPa; for higher force, the 125 mm bore delivers 6136 N. The centre trunnion mounting is ideal for pivoting applications—if a fixed linear mount is preferred, consider the basic or LB foot-mounted SCJ100 variants.
For replacement, match this unit with another AirTAC SCJ100 adjustable-stroke cylinder with an 80 mm nominal stroke, 30 mm adjust range, PT ports, TC mount, and magnet. If your application requires a fixed stroke with no field adjustment, the standard SC100 series is a simpler alternative. For strokes of 300 mm or more, evaluate side-loading on the 25 mm rod and consider an external guide or a guided cylinder to prevent rod bending.
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 SCJ100X80-30STC FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N (reduced due to the 25 mm rod area). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 7854 N, but the rated maximum is 7068 N at 0.9 MPa.
Yes, provided the mounting style, port thread, and magnet option match. The SCJ100X80-30STC has a centre trunnion mount and a body length of 245 mm (A dimension), which is slightly longer than a fixed-stroke SC100. Ensure your machine has clearance for the rear adjusting screw and that the 30 mm adjustment range suits your stroke-end tuning needs.
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