The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X20-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø80mm bore, 20mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X20-10S is an 80 mm bore double-acting single-rod cylinder from the AirTAC SCJ series, engineered for applications requiring precise, field-adjustable stroke end positioning. Its rear-cap adjusting screw provides a 10 mm range to fine-tune the stroke end without removing the cylinder, delivering a robust 2513 N push force at 0.5 MPa. The 25 mm rod diameter and 28 mm air cushion length ensure stable performance and effective end-of-stroke deceleration.
This model features a built-in magnet (suffix -S), enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for reliable piston position feedback. Operating on 40 µm filtered air from 0.15 to 1.0 MPa, the SCJ80X20-10S uses PT3/8 ports and an M20x1.5 rod thread, making it a genuine AirTAC solution for commissioning and format changeover tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X20-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 20 mm |
| Stroke adjustment | Up to 10 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. |
| ×20 | Nominal (maximum) stroke length in mm. |
| -10 | 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.
During machine commissioning, the 10 mm adjusting screw allows engineers to dial in the exact end-stop position for grippers or stops without fabricating shims, speeding up the setup of new assembly lines.
In high-cycle clamping fixtures, the adjustable stroke can be tweaked over time to compensate for wear on contact surfaces or tooling, maintaining consistent clamp force without replacing the cylinder.
For packaging lines handling different box sizes, the stroke end can be quickly adjusted by 10 mm to match a new product width, eliminating the need for mechanical stop changes on a diverter gate.
When selecting this 80 mm bore, consider the adjacent sizes for force requirements. The smaller 63 mm bore provides 1559 N of push force at 0.5 MPa, while the larger 100 mm bore offers a substantial step up to 3927 N. If your application does not need stroke-end adjustability, the fixed-stroke SC80 series is a simpler alternative. For a direct replacement, match to an SCJ80X20-10S with PT ports, basic mounting, and a built-in magnet; no additional brackets are required for this basic configuration.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. The maximum push force at the 0.9 MPa upper limit is 4523 N. The pull force is lower due to the 25 mm piston rod area.
The SCJ80X20-10S can replace an SC80 if you need the 10 mm adjustable stroke feature and the 20 mm nominal stroke is suitable. Ensure the port type (PT), magnet option (S), and mounting style match your current setup. The SCJ body is slightly longer than a comparable fixed-stroke SC to accommodate the adjusting mechanism.
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