The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-10S 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. Ø50mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X100-10S is a double-acting, single-rod pneumatic cylinder that delivers 982 N of push force at 0.5 MPa, making it a strong mid-range actuator for industrial tasks. Its rear-cap adjusting screw provides a 10 mm field-adjustable stroke range, letting you fine-tune the end position without swapping the cylinder or adding external hard stops.
This model features a built-in magnet, so CMSG/DMSG/EMSG reed or solid-state sensors can be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection. With a 20 mm rod diameter, M16x1.5 rod thread, and PT1/4 ports, it fits standard pneumatic circuits and offers a 21 mm air cushion for smooth deceleration.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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.
The 10 mm screw adjustment lets technicians quickly dial in the exact stop position during machine commissioning, eliminating the need to fabricate shims or reposition external stops.
When switching product sizes on a packaging line, operators can fine-tune the pusher stroke end in seconds, minimizing downtime between production runs.
As gripper pads or tooling wear over time, the adjustable stroke end can be slightly extended to maintain consistent part contact without replacing the entire end-effector.
Choose the SCJ50X100-10S when you need to dial in a precise end-stop during commissioning or format changes. If your force requirement is lower, the SCJ40X100-10S provides 628 N of push force; for heavier loads, step up to the SCJ63X100-10S which delivers 1559 N. The adjustable stroke is ideal for fine-tuning, but if you need a fixed, repeatable stroke with no risk of the screw drifting, a standard SC cylinder is a better choice.
For direct replacement, match the 50 mm bore, 100 mm nominal stroke, 10 mm adjust range, PT port thread, and the built-in magnet. This basic-mount version accepts FA front flange or LB foot mounts if a fixed mounting style is needed later. For strokes of 300 mm or more, consider an external guide to protect the 20 mm rod from side-load bending.
Adjustable-stroke checklist
A screw in the rear cap limits how far the piston can retract, effectively shortening the stroke end by up to 10 mm. The 100 mm nominal stroke is the maximum; you can reduce it anywhere within that 10 mm range. It adjusts the end position only, not the force or speed.
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 1.0 MPa, the push force reaches 1963 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
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