The AirTAC Airtac SCJ160 Standard Cylinder SCJ160X80-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø160mm bore, 80mm nominal stroke, PT3/4 ports and adjustable end cushioning.
The SCJ160X80-30 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, built on a robust tie-rod construction. Its 160 mm bore generates a substantial 10053 N of push force at just 0.5 MPa, making it a powerful actuator for heavy industrial tasks. The rear-cap adjusting screw provides up to 30 mm of stroke-end reduction, allowing you to fine-tune the piston's stopping position without removing the cylinder from the machine.
This model features a 40 mm diameter piston rod, a PT3/4 port, and an M36x2 rod thread for secure tooling attachment. The integrated air cushion is 29 mm long, effectively decelerating high-inertia loads at the end of travel. With a body length A of 332 mm, it is a substantial unit designed for demanding applications where precise, repeatable end-position adjustment is critical.
| Model | Airtac SCJ160 Standard Cylinder SCJ160X80-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 29 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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 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. |
|---|---|
| 160 | Bore size in mm. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Fine-tune the final pressing depth on a large hydraulic-pneumatic forming press during initial setup and commissioning trials, using the 30 mm adjustment range to achieve the exact part dimension without changing hard tooling.
Adjust the retracted stop position for different log diameters on a heavy-duty sawmill infeed conveyor. The 10053 N push force at 0.5 MPa provides ample power to securely hold large timber pieces.
Dial in the precise clamping stroke for varying mold sizes in a foundry sand casting line. The adjustable stroke end compensates for mold wear over time, maintaining consistent clamping pressure and reducing flash.
Choose the SCJ160 when you need the high force of a 160 mm bore combined with the ability to dial in the stroke end position during setup or changeovers. If your application requires even more force, stepping up to the 200 mm bore provides 15708 N of push at 0.5 MPa. For applications that do not require stroke adjustability, the fixed-stroke SC160 is a simpler, more cost-effective alternative. A direct replacement must match the 160 mm bore, 80 mm nominal stroke, 30 mm adjust range, PT port thread, and basic mounting configuration.
Adjustable-stroke checklist
The theoretical push force at the maximum operating pressure of 1.0 MPa is 18095 N. At a typical factory air pressure of 0.7 MPa, the push force is 14074 N. The pull force on the retract stroke is lower due to the area of the 40 mm piston rod, providing 9425 N at 0.5 MPa.
Yes, you can replace an SC160 with an SCJ160 if you need the stroke-end adjustability. The mounting footprints and port sizes are identical. Ensure the SCJ model you select matches your required nominal stroke and that the 30 mm adjustment range is sufficient for your needs. The SCJ body is slightly longer than the SC of the same stroke to accommodate the adjusting mechanism.
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