Airtac SCJ100 Standard Cylinder SCJ100X75-50TC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-50TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø100mm bore, 75mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke75 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X75-50TC
The SCJ100X75-50TC is a tie-rod, double-acting, single-rod cylinder with a 100 mm bore and a nominal 75 mm stroke, featuring a rear-cap adjusting screw that provides a 50 mm field-adjustable range. At 0.5 MPa, it delivers 3927 N of push force and 3681 N of pull force, making it a powerful solution for heavy-duty applications where the stroke end position must be tuned precisely during commissioning or changeovers.
This model is configured with a centre trunnion (TC) mount, which includes the TCM1 bracket and allows the cylinder to pivot, absorbing misalignment in swinging or articulating loads. The 25 mm piston rod is equipped with an M20x1.5 male thread, and the cylinder body length A(SCJ) is 245 mm. It operates on 40 µm filtered air within a standard pressure range of 0.15–1.0 MPa.
Airtac SCJ100 Standard Cylinder SCJ100X75-50TC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-50TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 50 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 SCJ100X75-50TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ100X75-50TC Is Used
Format Changeovers
Quickly re-set a mechanical stop position for different product sizes on a packaging line without changing the cylinder or adding external hard stops.
Wear Compensation
Fine-tune the stroke end to account for tooling wear in a pressing or clamping station, maintaining consistent force application over the machine's life.
Pivoting Diverters
The centre trunnion mount is perfect for a swinging diverter arm on a conveyor, and the adjustable stroke lets you dial in the exact angle of the gate.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-50TC the Right Cylinder?
With a push force of 3927 N at 0.5 MPa, this 100 mm bore SCJ is a step up from the 80 mm bore, which provides 2513 N of push force. If your application requires less force, downsizing to the 80 mm bore can reduce air consumption and footprint. The adjustable stroke is ideal when the exact end position is unknown at design time or needs to be re-set for different batches. If the stroke is fixed and never needs adjustment, the standard SC100X75 fixed-stroke cylinder is a simpler, more cost-effective alternative.
For replacement, match the bore (100 mm), nominal stroke (75 mm), and the 50 mm adjust range. This model uses a PT port thread and the TC centre trunnion mount (F-SC100TC). Always verify the mounting style, as an SCJ with a basic or foot mount will not be a direct dimensional swap for this trunnion-mounted unit.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ100X75-50TC FAQ
The theoretical push force at 0.5 MPa is 3927 N, and the pull force is 3681 N. At the maximum operating pressure of 1.0 MPa, the push force reaches 7068 N. Actual force depends on your specific operating pressure.
No. The adjusting screw only sets the mechanical end-of-stroke position; it does not lock the piston. If air pressure is lost or the valve is centered, the piston will drift. For mid-stroke holding, you need an external rod brake or a pilot-operated check valve.
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