The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X150-50SH 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, 150mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X150-50SH is an 80 mm bore double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, giving you up to 50 mm of fine-tuning range via the rear-cap screw. It delivers 2513 N of push force at 0.5 MPa, scaling to 4523 N at 0.9 MPa, making it a robust choice for applications needing a mid-range force class with on-machine adjustability.
This model is built with a 25 mm diameter piston rod, PT3/8 ports, and a 28 mm air cushion for smooth deceleration. The -SH suffix specifies a built-in magnet for direct mounting of CMSG/DMSG sensors and high-temperature Viton (FKM) seals, extending the operating range to 0–150 °C. The body length A is 239 mm, slightly longer than a fixed-stroke SC to house the adjusting mechanism.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X150-50SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 150 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. |
| ×150 | 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.
Dial in the exact stroke end position during machine commissioning without machining custom stops. The 50 mm adjustment range allows engineers to compensate for stack-up tolerances in real-time.
With Viton seals rated for 150 °C, this cylinder is suited for hot stamping or drying lines where the stroke must be quickly re-set for different product sizes without cooling the actuator.
In clamping or pressing fixtures, use the rear adjusting screw to take up mechanical wear on tooling or workpieces over time, maintaining consistent contact force without reprogramming a servo.
Choose this 80 mm bore when the 63 mm bore's 1559 N push force at 0.5 MPa is marginal and the 100 mm bore's 3927 N is excessive for your load. The 50 mm adjustment range is ideal for commissioning trials or format changes where the stroke end must be dialed in precisely without swapping the cylinder. If your application does not require stroke adjustability, a standard SC80X150 fixed-stroke cylinder is a simpler, more cost-effective alternative.
For a direct replacement, match an AirTAC SCJ cylinder with an 80 mm bore, 150 mm nominal stroke, and a -50 adjust range. This model uses PT ports, a basic mount, a magnet, and Viton seals. At 150 mm stroke, side-loading is less of a concern than on longer strokes, but always ensure the load is guided to prevent rod bending. The SCJ mounting subset includes FA front flange (F-SC80FA), LB foot (F-SC80LB), and TC centre trunnion (F-SC80TC) with a TCM1 bracket.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, 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 increases to 4523 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
Only if you no longer need the stroke-end adjustment feature. The SCJ80X150-50SH has a rear adjusting screw that allows you to shorten the stroke by up to 50 mm. A standard SC80X150 is fixed at 150 mm and cannot be adjusted. For a direct replacement, you must use another SCJ with the same bore, stroke, and adjust range.
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