The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-30TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-30TC is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, delivering 2513 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides up to 30 mm of stroke-end reduction, allowing machine builders to fine-tune the piston stop position without changing the cylinder or adding external hard stops.
This model features a 25 mm diameter piston rod, PT3/8 ports, and an M20x1.5 rod thread for robust connection. It comes equipped with a TC centre trunnion mount (F-SC80TC), supplied with the TCM1 bracket, making it ideal for applications where the cylinder body needs to pivot. The adjustable air cushion decelerates the 80 mm bore piston smoothly at each end, with a cushion length of 28 mm.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-30TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 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. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Quickly adjust the end stop for different box sizes on a case packer without tools, reducing downtime between production runs.
Dial in the precise clamping depth for a gluing or pressing fixture, accommodating variations in workpiece thickness or adhesive squeeze-out.
Fine-tune the open and closed positions of a material diverter gate on a conveyor line to ensure reliable product routing.
Choose the SCJ80X100-30TC when you need a powerful mid-bore actuator with the ability to dial in the exact stroke end on the machine. If 2513 N of push force at 0.5 MPa is insufficient, stepping up to a 100 mm bore provides 3927 N. For lower force requirements, the 63 mm bore delivers 1559 N. This adjustable-stroke model is the right pick over a fixed-stroke SC when commissioning involves trial-and-error positioning or when a machine must handle multiple product formats with slightly different stop points.
For replacement, match an AirTAC SCJ adjustable-stroke cylinder with an 80 mm bore, 100 mm nominal stroke, and a 30 mm adjust range, ensuring PT port threads and the TC centre trunnion mounting. Since the nominal stroke is under 300 mm, rod bending from side loads is typically not a primary concern, but always align the rod with the load path to maximize seal life.
Adjustable-stroke checklist
A screw in the rear cap acts as an internal stop for the piston. Turning it extends the stop, shortening the effective stroke by up to 30 mm from the nominal 100 mm maximum. This sets the stroke end position precisely, but does not change the cylinder's force output.
At the standard 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N. The pull force is lower because the 25 mm piston rod reduces the effective area on the return stroke. The maximum push force at 0.9 MPa is 4523 N.
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