The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-30S 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. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X100-30S is an 80 mm bore, single-rod, double-acting pneumatic cylinder with a field-adjustable stroke end. A rear-cap adjusting screw allows you to fine-tune the stroke termination by up to 30 mm without removing the cylinder, delivering a push force of 2513 N at 0.5 MPa and a maximum push of 4523 N at 0.9 MPa. Its 25 mm diameter piston rod and 28 mm air cushion provide robust deceleration for mid-to-heavy linear tasks.
This model includes a built-in magnet, enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The body length A is 239 mm, with PT3/8 ports and an M20x1.5 rod thread, making it a direct replacement for any AirTAC SCJ of the same bore, stroke, and adjust range.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 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. |
| ×100 | 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 end-stop position during machine commissioning by up to 30 mm to dial in the exact stroke length without swapping cylinders or machining external hard stops.
Quickly adjust the stroke end for different product sizes on a packaging or sorting line. The built-in magnet provides sensor feedback to confirm the new position is reached every cycle.
Take up mechanical play or tooling wear over time by advancing the stroke end screw. This keeps a pressing or clamping operation consistent without reprogramming the machine controller.
Choose this 80 mm bore when your application needs around 2513 N of push force at standard shop air. If you can step down to a 63 mm bore, you save space and still get 1559 N of push; if you need more force, the 100 mm bore delivers 3927 N at the same 0.5 MPa. This SCJ adjustable-stroke unit is ideal for commissioning and format changes, but if your stroke is fixed and never needs field tuning, the standard SC series offers a simpler, more cost-effective solution.
For a drop-in replacement, match an AirTAC SCJ with an 80 mm bore, 100 mm nominal stroke, a -30 adjustable range, PT3/8 ports, and the -S magnet option. For strokes of 300 mm or more, consider an external guide rail or a guided cylinder to protect the 25 mm rod from side loads and bending.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N. The push force is always higher than the pull force because it is a single-rod cylinder.
A rear-cap screw sets the physical stroke end, shortening the 100 mm nominal stroke by up to 30 mm. It is a mechanical stop for the piston, not a locking device. The cylinder will not hold its position if air pressure is lost; an external rod lock or pilot-operated check valve is required for load holding.
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