The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X200-100H is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø50mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X200-100H is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, delivering 982 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides a 100 mm range to fine-tune the stroke end position, making it ideal for commissioning and format changeovers without swapping the cylinder. The 50 mm bore features a 20 mm diameter rod, PT1/4 ports, and an M16x1.5 rod thread.
This variant is built with Viton (FKM) seals, extending the operating temperature range from 0 to +150°C for reliable performance in hot or aggressive environments. The tie-rod construction includes an adjustable air cushion for smooth deceleration. With a body length of 194 mm, it shares the same mounting accessories as the SC family, using the basic mount configuration.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X200-100H |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 100 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. |
| -100 | 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 100 mm adjustment range allows engineers to precisely dial in the stroke end position during initial machine setup, eliminating the need for custom-length cylinders or external hard stops.
With Viton seals rated for 150°C, this cylinder is suited for actuating gates or diverters near ovens, autoclaves, or other heat-intensive processes where standard seals would fail.
In high-cycle applications, the adjustable stroke can be periodically tweaked to compensate for mechanical wear in tooling or grippers, maintaining precise part contact without immediate replacement.
Choose this 50 mm bore for applications needing up to 982 N of push force. If your load is lighter, consider stepping down to the 40 mm bore (628 N push) for a smaller footprint; for heavier demands, the 63 mm bore offers 1559 N. The 100 mm adjustment range is ideal for processes with significant stroke variation. For a fixed stroke, the standard SC series is a more economical choice. This model is a direct replacement for another AirTAC SCJ50X200-100H with PT ports and Viton seals. For the 200 mm stroke, ensure the rod is guided externally if significant side loads are present to prevent bending.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The maximum push force at the 0.9 MPa operating limit is 1767 N. The theoretical force at 1.0 MPa is 200 kgf.
A screw in the rear cap sets the retracted stroke end position. You can shorten the nominal 200 mm stroke by up to 100 mm. It does not change the cylinder's force or speed, only the mechanical stop point for the piston rod.
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