Airtac SCJ100 Standard Cylinder SCJ100X80-75
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 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-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-75
The SCJ100X80-75 is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, giving you up to 75 mm of field-adjustable stroke-end reduction without removing the cylinder from the machine. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa, making it a powerful solution for heavy-duty positioning tasks.
This model features a 25 mm piston rod, PT1/2 ports, and a 29 mm air cushion for smooth end-of-stroke deceleration. The tie-rod construction and standard PT threads ensure straightforward integration into existing pneumatic circuits. The 75 mm adjustment range is ideal for applications requiring frequent fine-tuning, such as adapting to different product sizes or compensating for tooling wear over time.
Airtac SCJ100 Standard Cylinder SCJ100X80-75 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 75 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 SCJ100X80-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ100X80-75 Is Used
Commissioning & Setup
During machine commissioning, the 75 mm adjustment screw allows engineers to precisely dial in the optimal end-stop position for a new process without needing to fabricate custom hard stops or swap out cylinders with different strokes.
Product Format Changeover
In packaging or assembly lines, the adjustable stroke enables a rapid changeover between different product sizes. An operator can quickly reset the pusher or stopper cylinder's end position to match a new box height or pallet dimension, minimizing downtime.
Wear Compensation
In high-cycle clamping or pressing operations, the tooling or workpiece contact surfaces can wear down. The SCJ's screw adjuster provides a simple way to periodically advance the stroke end, maintaining consistent clamp force and part quality without replacing the entire actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-75 the Right Cylinder?
For applications needing more force, stepping up to the 125 mm bore provides 6136 N of push at 0.5 MPa. If a fixed, non-adjustable stroke is sufficient, the standard SC100 series offers a simpler, more cost-effective alternative. This SCJ cylinder is a direct dimensional replacement only for another AirTAC SCJ100 cylinder with the same 80 mm nominal stroke, 75 mm adjustment range, and PT port threads. The basic mounting configuration allows you to add the specific mounting accessory your application requires, such as an FA front flange (F-SC100FA) or an LB foot mount (F-SC100LB).
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ 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 SCJ100X80-75 FAQ
At the standard operating pressure of 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N. Because it is a single-rod cylinder, the push force is always greater than the pull force due to the area of the 25 mm rod.
The rear adjusting screw physically limits the piston's travel at the retracted end, allowing you to shorten the effective stroke by up to 75 mm from the 80 mm nominal maximum. This is a mechanical stroke-end stop, not a position-holding or locking device. If air pressure is lost, the piston will not hold its position and can be moved by an external load; a separate mechanical lock or pilot-operated check valve is required for load holding.
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