The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X300-100TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø80mm bore, 300mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X300-100TC is an 80 mm bore double-acting single-rod pneumatic cylinder with a field-adjustable stroke end, giving you up to 100 mm of rear-screw adjustment to fine-tune the stopping position without swapping the cylinder. At 0.5 MPa it delivers 2513 N push and 2268 N pull, and its 25 mm rod with M20x1.5 threads handles substantial side loads when externally guided.
This model ships with the TC centre trunnion mount and TCM1 bracket (part code F-SC80TC), letting the cylinder pivot freely for swinging or articulating machine sections. The 28 mm air cushion decelerates the piston smoothly, and the 239 mm body length A(SCJ) fits compactly into designs where stroke-end tuning is critical during commissioning or format changes.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X300-100TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 300 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| 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, 28 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | Nominal (maximum) stroke length in mm. |
| -100 | 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.
Dial in the exact stroke end position during machine commissioning with the 100 mm rear adjusting screw, eliminating the need to machine custom end stops or swap cylinders for small positional tweaks.
Quickly adapt the cylinder stroke for different product sizes on packaging or sorting lines. The trunnion mount allows the cylinder to pivot as it adjusts, maintaining alignment in swinging transfer arms.
Take up mechanical wear in gripper jaws or clamping fixtures over time by advancing the stroke end slightly, restoring full clamping force without replacing the actuator or adding shims.
Choose the SCJ80X300-100TC when you need a nominal 300 mm stroke that can be shortened by up to 100 mm on the machine. If your force requirement is lower, the 63 mm bore delivers 1559 N push at 0.5 MPa; for more power, the 100 mm bore provides 3927 N. For a fixed 300 mm stroke without the adjustment feature, the standard SC80X300 cylinder is a simpler alternative.
At 300 mm stroke, rod deflection under side load becomes a real concern—use an external guide rail or switch to a guided cylinder if the load is not perfectly axial. This SCJ replaces any AirTAC SCJ80X300-100 with PT ports and TC mount; verify that the -100 adjustment range, M20x1.5 rod thread, and trunnion pivot position match your existing setup.
Adjustable-stroke checklist
At 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N (the difference is due to the single rod reducing the piston area on the return side). At the maximum operating pressure of 1.0 MPa, theoretical push force reaches 5026 N.
Yes, provided the bore (80 mm), nominal stroke (300 mm), port thread (PT), and mounting style (TC trunnion) match. The SCJ body is slightly longer to accommodate the adjusting screw mechanism, so verify the extended retracted length against your machine envelope before swapping.
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