The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X150-75FA 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. Ø80mm bore, 150mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCJ80X150-75FA is an 80 mm bore, double-acting, single-rod pneumatic cylinder that delivers 2513 N of push force at 0.5 MPa, making it a robust choice for medium-to-heavy linear positioning tasks. Its defining feature is the rear-cap adjusting screw, which provides a 75 mm field-adjustable stroke range, allowing you to fine-tune the stroke end position without replacing the cylinder or adding external hard stops.
This model comes configured with an FA front rectangular flange (F-SC80FA) for secure panel or end-face mounting, and uses a 25 mm diameter piston rod with PT3/8 ports. With a body length of 239 mm and a 28 mm air cushion, it is designed for reliable deceleration at speeds of 30-800 mm/s. The standard TPU seals and PT threads suit general industrial environments from -20 to +70 °C.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X150-75FA |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 75 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. |
| ×150 | 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.
The 75 mm adjustable stroke lets technicians dial in the exact stop position during initial machine setup, compensating for tolerance stack-ups without machining custom spacers.
Quickly adapt a pusher or diverter station to handle different product widths on a packaging line. The front flange mount keeps the cylinder rigidly aligned against the machine frame.
In high-cycle clamping fixtures, the stroke can be incrementally adjusted to take up for pad wear, maintaining consistent clamping force without immediate replacement of consumables.
Choose the SCJ80X150-75FA when your application requires a 150 mm nominal stroke that can be precisely shortened by up to 75 mm on the machine, ideal for commissioning or format changeovers. If you need more force, stepping up to the 100 mm bore SCJ series provides 3927 N of push force at the same 0.5 MPa pressure; for a lighter, more compact solution, the 63 mm bore offers 1559 N. The FA front flange is the correct choice for mounting the cylinder rigidly against a bulkhead, but if your load needs to pivot, consider the TC centre trunnion version instead.
This adjustable-stroke unit is the direct replacement for another AirTAC SCJ80 cylinder with the same 150 mm nominal stroke and 75 mm adjustment range, provided the port thread (PT) and FA mounting match. For strokes of this length, ensure the rod is well-guided; if the load applies significant side force, pair this cylinder with an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. The maximum push force at 0.9 MPa is 4523 N. The adjustable stroke screw does not alter the cylinder's force output.
It can only replace another AirTAC SCJ80 adjustable-stroke cylinder with the same nominal stroke and adjustment range. The SCJ body is longer to house the adjusting screw, and the mounting accessories differ. It is not a drop-in replacement for a fixed-stroke SC80 cylinder.
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