The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X130-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø80mm bore, 130mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X130-50S is an 80 mm bore double-acting, single-rod pneumatic cylinder featuring a rear-cap adjusting screw that provides a 50 mm field-adjustable stroke range. This allows fine-tuning of the stroke end position without removing the cylinder, ideal for commissioning and format changeovers. It delivers a substantial 2513 N of push force at 0.5 MPa and up to 4523 N at 0.9 MPa, using a 25 mm diameter piston rod for robust linear actuation.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke detection. The cylinder body length A(SCJ) is 239 mm, and it features a PT3/8 port with an adjustable air cushion of 28 mm for smooth deceleration. It operates on filtered air from 0.15 to 1.0 MPa and is a genuine AirTAC product, ensuring reliable performance in industrial automation tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X130-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 130 mm |
| Stroke adjustment | Up to 50 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. |
| ×130 | Nominal (maximum) stroke length in mm. |
| -50 | 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 stroke end position by up to 50 mm during initial machine commissioning to perfectly align the actuator with mating parts, eliminating the need for shims or custom mechanical stops.
Quickly adjust the push stroke for different box or product sizes on a packaging line. The rear screw allows operators to change the stroke setting in seconds without disassembling the machine.
In high-cycle clamping or pressing fixtures, use the 50 mm adjustment range to take up mechanical wear on tooling or contact surfaces over time, maintaining consistent clamping force and position.
Select the SCJ80X130-50S when you need a powerful 80 mm bore actuator with the flexibility to adjust the stroke end by up to 50 mm on the machine. If your force requirement is lower, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa, saving space and air consumption. For applications needing a higher force, the 100 mm bore provides 3927 N at the same pressure. This adjustable-stroke model is the right choice over a fixed-stroke SC when the exact stroke length must be dialed in during setup or changed for different product runs.
For direct replacement, match an AirTAC SCJ cylinder with an 80 mm bore, 130 mm nominal stroke, a 50 mm adjust range, PT ports, and a built-in magnet. If the load creates significant side forces, consider adding an external guide rail or switching to a guided cylinder, as the tie-rod design is intended for primarily axial loads.
Adjustable-stroke checklist
As a single-rod cylinder, push and pull forces differ. At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The maximum push force at the 0.9 MPa operating limit is 4523 N.
A rear-cap screw sets the stroke end position within a 50 mm range, shortening the nominal 130 mm stroke. It is not a speed or force control. It can replace a fixed-stroke SC of the same bore if you need field adjustability, but you must match the 80 mm bore, PT3/8 ports, and add a magnet if sensor detection is required.
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