The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X500-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø80mm bore, 500mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X500-10 is an 80 mm bore double-acting single-rod pneumatic cylinder with a rear-cap adjusting screw that provides 10 mm of field-adjustable stroke-end control. This model delivers 2513 N of push force at 0.5 MPa and 4523 N at the maximum operating pressure of 0.9 MPa, using a 25 mm diameter piston rod and PT3/8 ports.
With a body length A of 239 mm and an effective cushion length of 28 mm, this tie-rod cylinder is built for mid-range force applications where fine-tuning the stroke end position is critical. Its adjustable stroke feature allows operators to dial in the exact stopping point without swapping the cylinder, making it a practical choice for commissioning and format changeovers.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X500-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 10 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. |
| ×500 | Nominal (maximum) stroke length in mm. |
| -10 | 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.
The 10 mm adjustment screw allows technicians to fine-tune the final actuator position during machine setup, eliminating the need for shims or custom mechanical stops on a 500 mm stroke.
In long-stroke pusher or diverter stations, the adjustable stroke end can be periodically reset to compensate for pad or tooling wear, maintaining consistent part placement without replacing the cylinder.
Quickly adapt the stroke end position for different product sizes on packaging or assembly lines, reducing downtime during batch changes with a simple screw adjustment instead of a full cylinder swap.
Choose the SCJ80X500-10 when you need roughly 2500 N of push force at standard plant pressure and the ability to adjust the stroke end by up to 10 mm on the machine. If your force requirement is lower, stepping down to the 63 mm bore reduces push force to 1559 N at 0.5 MPa; for a significant jump in power, the 100 mm bore delivers 3927 N. A fixed-stroke SC cylinder is a simpler, more cost-effective choice if stroke adjustability is not required. For this 500 mm stroke, ensure the load is guided externally or use a guided cylinder to prevent rod bending from side loads. A direct replacement must match the 80 mm bore, 500 mm nominal stroke, 10 mm adjust range, PT port thread, and basic mounting configuration.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The force increases with pressure, reaching 4523 N push at the maximum operating pressure of 0.9 MPa. Because this is a single-rod cylinder, the push force is greater than the pull force due to the area taken up by the 25 mm rod on the return stroke.
A screw mechanism in the rear cap allows you to shorten the stroke end by up to 10 mm from the nominal 500 mm maximum. This sets a new mechanical stop for the piston, letting you fine-tune the extended position. It does not adjust the retracted position, speed, or force. For a fixed-stroke version without this feature, see the standard SC series.
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