Airtac SCJ100 Standard Cylinder SCJ100X75-75TC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X75-75TC 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, 75mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke75 mm
- Stroke adjust-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X75-75TC
The SCJ100X75-75TC is a double-acting, single-rod pneumatic cylinder with a 100 mm bore and a nominal 75 mm stroke, featuring a rear-cap adjusting screw that provides up to 75 mm of field-adjustable stroke reduction. This allows fine-tuning of the piston end position without replacing the cylinder. It delivers a substantial push force of 3927 N at 0.5 MPa, making it suitable for heavy-duty clamping and positioning tasks.
This model is configured with a centre trunnion (TC) mount, supplied with the TCM1 bracket (order code F-SC100TC), which allows the cylinder to pivot and is ideal for swinging loads. The 25 mm diameter piston rod and PT1/2 ports handle high flow rates, while the 29 mm adjustable air cushion at each end decelerates the piston smoothly. The body length (A dimension) is 245 mm.
Airtac SCJ100 Standard Cylinder SCJ100X75-75TC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X75-75TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 75 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 SCJ100X75-75TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SCJ100X75-75TC Is Used
Format Changeovers
Quickly adjust the end stop for different product sizes on packaging or filling machines without mechanical modifications, reducing downtime between batches.
Part Diverter Gates
Fine-tune the gate opening angle on a conveyor sorting system. The trunnion mount allows the cylinder body to pivot as the rod extends and retracts.
Clamp Stroke Setting
Dial in the exact clamping position for a welding or assembly fixture to accommodate part tolerances, preventing over-travel and part damage.
Is the Airtac SCJ100 Standard Cylinder SCJ100X75-75TC the Right Cylinder?
Choose the SCJ100X75-75TC when your application requires a powerful, pivot-mounted actuator with a stroke that can be precisely dialed in on the machine. If you need more force, stepping up to the 125 mm bore provides 6136 N of push force at the same pressure. For applications where the stroke is fixed and will never need adjustment, the standard SC100X75 fixed-stroke cylinder is a more economical choice. This SCJ model is a direct replacement for another AirTAC SCJ100 cylinder with a 75 mm nominal stroke, a 75 mm adjust range, PT ports, and a TC centre trunnion mount.
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 SCJ100X75-75TC FAQ
At the maximum operating pressure of 1.0 MPa, the theoretical push force is 3927 N. At the standard factory pressure of 0.7 MPa, it provides 2749 N of push force. The pull force is lower at 3681 N at 1.0 MPa due to the rod area.
A screw in the rear end cap acts as an internal, adjustable end stop for the piston. Turning the screw changes the retracted end position by up to 75 mm, allowing you to shorten the stroke without affecting the cylinder's force or speed. It is not a locking device and will not hold a load if air pressure is lost.
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