The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X175-100 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, 175mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X175-100 is a double-acting, single-rod pneumatic cylinder from AirTAC, engineered with a rear-cap adjusting screw that provides up to 100 mm of stroke-end adjustability. Operating at 0.5 MPa, it delivers a push force of 2513 N and a pull force of 2268 N, making it a robust choice for applications requiring fine mechanical end-stop tuning without replacing the cylinder. The 80 mm bore unit features a 25 mm diameter piston rod, PT3/8 ports, and a 28 mm air cushion for smooth deceleration.
With a nominal stroke of 175 mm and a body length A of 239 mm, this tie-rod cylinder allows machine builders to dial in the exact stroke position during commissioning or changeovers. The adjustable range lets you shorten the stroke end by up to 100 mm, offering significant flexibility for format changes or wear take-up on production lines. This model comes in a basic mounting configuration with a TPU seal and standard PT threads.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X175-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 175 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. |
| ×175 | 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.
The 100 mm adjustment range allows technicians to precisely dial in the stroke end during initial machine setup, compensating for minor assembly tolerances without needing to order a new cylinder.
On packaging or sorting lines, quickly adjust the cylinder's end position to accommodate different product sizes or box dimensions, minimizing downtime between production runs.
In clamping or pressing applications, the stroke-end screw can be periodically advanced to take up mechanical wear on tooling or contact surfaces, maintaining consistent process force and position over time.
Select the SCJ80X175-100 when you need to fine-tune the stroke end position on the machine without swapping hardware. If your force requirement is lower, consider stepping down to the 63 mm bore, which provides 1559 N of push force at 0.5 MPa; for higher force, the 100 mm bore offers 3927 N. Choose this adjustable-stroke model over a fixed-stroke SC when your process requires frequent mechanical end-stop adjustments. For a direct replacement, match the 80 mm bore, 175 mm nominal stroke, 100 mm adjust range, PT port thread, and basic mounting. If this 175 mm stroke creates a risk of rod bending under side loads, implement an external guide rail or consider a guided cylinder assembly.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this 80 mm bore cylinder provides a push force of 2513 N and a pull force of 2268 N. The push force is higher because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 5026 N.
Yes, the SCJ80X175-100 is dimensionally compatible with a fixed-stroke SC of the same bore and nominal stroke, but the SCJ body is slightly longer to house the adjusting screw. Ensure your mounting arrangement has clearance for the rear adjustment mechanism. The port size (PT3/8), rod diameter (25 mm), and mounting accessories are identical.
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