The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X160-75 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, 160mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X160-75 brings a 75 mm rear-end adjustment range to an 80 mm bore double-acting cylinder, letting you dial in the exact stroke end on the machine without swapping hardware. With a 25 mm piston rod and PT3/8 ports, it delivers 2513 N of push force at 0.5 MPa and up to 4523 N at the maximum 0.9 MPa operating pressure.
A 28 mm air cushion decelerates the piston smoothly, while the tie-rod construction keeps service straightforward. The body length A(SCJ) is 239 mm, and the cylinder accepts the SCJ mounting subset—FA front flange, LB foot, or TC centre trunnion with TCM1 bracket—so it drops into existing layouts when you need a genuine AirTAC adjustable-stroke unit.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X160-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 160 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. |
| ×160 | 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 screw adjustment lets technicians fine-tune the end position during machine bring-up, dialing in the exact 160 mm (or shorter) stroke without ordering multiple fixed-stroke cylinders.
On packaging or sorting lines that switch between product sizes, the rear screw quickly resets the pusher stroke end. The 2513 N push force at 0.5 MPa handles medium-weight carton or tote positioning.
In fixturing or pressing stations where tooling wears or compresses over time, the adjustable stroke compensates for the dimensional change, maintaining consistent clamp force without reprogramming a stop.
Step up to the 100 mm bore SCJ if your application demands more than the 2513 N push force this 80 mm unit provides at 0.5 MPa (the 100 mm bore delivers 3927 N). For a fixed, non-adjustable stroke, the standard SC80 series offers the same force ratings in a slightly shorter body. When replacing an existing adjustable cylinder, match the 80 mm bore, 160 mm nominal stroke, the -75 adjust range, PT3/8 port thread, and any mounting accessory from the FA/LB/TC subset. At a 160 mm stroke, rod bending is rarely a concern, but if the load applies a side force, add an external guide rail to protect the rod bearing.
Adjustable-stroke checklist
At 0.5 MPa the push force is 2513 N and the pull force is 2268 N (the pull force is lower because the 25 mm rod reduces the piston area on the return side). At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N.
The -75 designates a rear-cap adjusting screw that shortens the stroke end by up to 75 mm. The 160 mm in the model code is the nominal maximum stroke. This screw sets the mechanical end position only—it is not a speed or force adjuster. For speed control, use a separate flow control valve in the port.
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