
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-50 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. Ø50mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X200-50 is a double-acting, single-rod pneumatic cylinder with a 50 mm rear-end stroke adjuster, letting you dial in the exact stop position during commissioning or changeovers. Its 50 mm bore delivers 982 N of push force at 0.5 MPa and up to 1767 N at 0.9 MPa, with a 20 mm piston rod and M16x1.5 rod thread for robust linear actuation.
This tie-rod cylinder uses a PT1/4 port and includes an adjustable air cushion (21 mm length) to decelerate the 200 mm stroke smoothly. The body length A is 194 mm, and the rear screw shortens the stroke end by up to 50 mm without affecting the bore's force output or the nominal 200 mm rating.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 50 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. |
| ×200 | 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 precise end-stop during machine bring-up without fabricating custom spacers. The 50 mm adjustment range lets technicians fine-tune the 200 mm stroke on the fly.
Quickly adapt to different product sizes on packaging or sorting lines. Operators can shorten the stroke end by up to 50 mm to handle varying box or pallet dimensions.
Take up mechanical play in linkages or tooling over time. The rear screw adjusts the stroke end to maintain precise positioning as grippers or stops wear, extending system life.
Choose the SCJ50X200-50 when you need to fine-tune the stroke end position by up to 50 mm on a machine, avoiding external hard stops. If 982 N push at 0.5 MPa is insufficient, stepping up to a 63 mm bore provides 1559 N push; if space is tight, the 40 mm bore offers 628 N. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative.
At 200 mm stroke, side-loading is moderate, but if the rod experiences significant radial force, add an external guide rail or switch to a guided cylinder. This model replaces any AirTAC SCJ50X200-50 with PT ports and basic mounting; for a magnet-equipped version, order SCJ50X200-50S.
Adjustable-stroke checklist
At 0.5 MPa, it delivers 982 N pushing and 825 N pulling (the difference is due to the single 20 mm rod). At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N.
Yes, if you need field-adjustable stroke. The SCJ50X200-50 matches the mounting footprint of an SC50X200 but adds a rear adjusting screw. Ensure your machine has clearance for the slightly longer body (194 mm) and the 50 mm adjustment range.
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