Airtac SCJ100 Standard Cylinder SCJ100X80-50TC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-50TC 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, 80mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke80 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-50TC
The SCJ100X80-50TC is a 100 mm bore double-acting cylinder delivering 3927 N of push force at 0.5 MPa, with a rear adjusting screw that provides up to 50 mm of field-adjustable stroke-end reduction. Its 25 mm diameter piston rod and PT1/2 porting make it a robust choice for applications where the end position needs frequent fine-tuning without swapping the cylinder.
This model includes a TC centre trunnion mount, supplied with the TCM1 bracket (order code F-SC100TC), allowing the cylinder to pivot and absorb misalignment in swinging or articulating linkages. The 29 mm air cushion at each end decelerates the piston smoothly, and the standard TPU seals operate reliably from -20 to +70 °C.
Airtac SCJ100 Standard Cylinder SCJ100X80-50TC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-50TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 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 SCJ100X80-50TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SCJ100X80-50TC Is Used
Format Changeover
Quickly adjust the end stop by up to 50 mm when switching between product sizes on packaging or filling lines, eliminating the need for mechanical hard stops.
Commissioning & Setup
Fine-tune the actuator stroke during machine commissioning to dial in the exact clamp, press, or eject position without removing the cylinder from the assembly.
Wear Compensation
Compensate for tooling or gripper jaw wear over time by advancing the stroke end via the rear screw, maintaining consistent contact force without reprogramming the controller.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-50TC the Right Cylinder?
Choose the SCJ100 when you need the 3927 N push force at 0.5 MPa and the ability to dial in the stroke end by up to 50 mm. If your force requirement is lower, the 80 mm bore SCJ80 provides 2513 N push; if higher, the 125 mm bore SCJ125 offers 6136 N. For applications where the stroke is fixed and never needs field adjustment, the standard SC100 fixed-stroke cylinder is a simpler alternative.
To replace an existing unit, match the 100 mm bore, 80 mm nominal stroke, 50 mm adjust range, PT port thread, and TC centre trunnion mounting. For strokes of 300 mm or longer, consider an external guide rail or a guided cylinder to protect the 25 mm rod from side-load bending.
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 SCJ100X80-50TC FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N (reduced by the 25 mm rod area). At the maximum operating pressure of 0.9 MPa, push force reaches 7068 N. The theoretical maximum at 1.0 MPa is 801 kgf.
A screw in the rear cap sets the retracted end position of the piston. Turning the screw shortens the effective stroke by up to 50 mm from the nominal 80 mm maximum. It adjusts only the stroke end stop, not the force or speed, and does not lock the piston when air pressure is removed.
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