The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X160-40S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 mm range without swapping the cylinder. Ø80mm bore, 160mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X160-40S is an 80 mm bore, double-acting single-rod cylinder offering a nominal 160 mm stroke with a 40 mm rear-end adjustment range. This allows operators to fine-tune the stroke end position on the machine, making it ideal for commissioning trials or processes that require periodic recalibration. The built-in magnet (suffix -S) enables direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection.
At 0.5 MPa, this cylinder delivers 2513 N of push force and 2268 N on the pull stroke, reflecting the single-rod design. The 25 mm diameter piston rod and PT3/8 ports handle robust flow, while the 28 mm air cushion at each end decelerates the piston for smooth, quiet operation. The body length A is 239 mm, providing a compact yet powerful package for industrial automation tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X160-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 40 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. |
| -40 | 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 dial in a new stroke end position for different product sizes on packaging or labeling machines without swapping the cylinder or adding hard stops.
Fine-tune the final clamp or press depth with the 40 mm adjustment screw to accommodate variations in workpiece thickness or tooling wear.
Easily adjust the actuator's end point during machine setup and debugging to find the optimal stroke for a new process, saving significant engineering time.
Choose the SCJ80X160-40S when you need a field-adjustable stroke end within a 40 mm window on an 80 mm bore platform. If your force requirement is lower, stepping down to a 63 mm bore (1559 N push at 0.5 MPa) saves space and air consumption. For higher thrust, the 100 mm bore model provides 3927 N push at the same pressure. This cylinder is a direct replacement for another AirTAC SCJ80X160-40S with PT ports, basic mounting, and a magnet.
For a 160 mm stroke, rod deflection under side load is a key consideration. If the application involves any lateral force, an external guide rail or a switch to a guided cylinder is strongly recommended to prevent rod bending and premature seal wear. If a fixed, non-adjustable stroke is sufficient, the standard SC series is a simpler alternative.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, it generates 2513 N of push force and 2268 N of pull force. The maximum push force at 0.9 MPa is 4523 N. The pull force is lower due to the area of the 25 mm piston rod.
Yes, provided the bore (80 mm), port thread (PT3/8), and mounting are compatible. The SCJ80X160-40S has a body that is slightly longer than a fixed-stroke SC80X160 to house the adjusting screw, so ensure you have clearance at the rear cap. The -S magnet option must also match if you need sensor feedback.
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