The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X700-100S 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, 700mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X700-100S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, providing up to 100 mm of stroke-end reduction via a rear-cap adjusting screw. With an 80 mm bore and a 700 mm nominal stroke, it delivers a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa. The 25 mm piston rod and 28 mm air cushion ensure robust, decelerated end-of-stroke performance.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for reliable, non-contact position feedback. The standard PT3/8 ports and TPU seals suit filtered air from -20 to +70 °C, making it a versatile workhorse for automated lines where the final stop position needs fine-tuning during commissioning or changeovers.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X700-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 700 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. |
| ×700 | 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.
Quickly dial in new stop positions for different product sizes on packaging or filling lines without swapping the cylinder or adding external hard stops.
Periodically adjust the stroke end to compensate for tooling or gripper pad wear in high-cycle assembly fixtures, maintaining precise engagement.
Fine-tune the opening of a diverter gate or pusher arm on a conveyor system to handle items of varying widths, using the sensor for gate position confirmation.
Choose the SCJ80 when your application requires roughly 2513 N of push force at standard plant pressure. If you need more force, stepping up to the 100 mm bore provides 3927 N at the same 0.5 MPa. For lighter, faster-moving loads, the 63 mm bore offers 1559 N. The 100 mm adjustment range on this model is ideal for processes with significant tooling variation.
For a 700 mm stroke, always assess side-loading on the rod. An external guide rail or a switch to a guided cylinder is recommended if the load is not perfectly axial. As a direct replacement, match the 80 mm bore, 700 mm nominal stroke, -100 adjust range, PT3/8 ports, and the -S magnet. A fixed-stroke SC cylinder is a simpler alternative only if you never need to alter the end position.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The maximum push force at the 1.0 MPa operating limit is 4523 N. The pull force is lower because the rod reduces the piston area on the retract side.
No. The rear adjusting screw only sets the end-of-stroke position; it does not lock the rod or hold a load. If the load must be held without air pressure, you need an external rod lock or a pilot-operated check valve.
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