The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X200-100SH 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. Ø80mm bore, 200mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X200-100SH is a double-acting, single-rod pneumatic cylinder that puts 2513 N of push force at your disposal at 0.5 MPa, scaling up to 4523 N at the maximum operating pressure of 0.9 MPa. Its defining feature is the rear-cap adjusting screw, which gives you a full 100 mm of field-adjustable stroke reduction, allowing the effective stroke end to be dialed in anywhere between 100 mm and the nominal 200 mm.
Built for demanding environments, this model carries the -H suffix for a Viton (FKM) seal, extending the operating temperature range to 0–150 °C. The -S designates a built-in magnet, enabling direct mounting of CMSG/DMSG/EMSG sensors on the tie-rod barrel for precise, non-contact end-of-stroke detection. The 25 mm rod and PT3/8 port complete the robust 80 mm bore assembly.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X200-100SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 100 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. |
| ×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 Viton seals and 100 mm adjust range are perfect for setting the final pressing depth on heated platen machinery, allowing operators to compensate for thermal expansion of tooling without reprogramming the press.
In foundry or glass handling, use the adjustable screw to precisely set the ejector stroke for different mold thicknesses. The high-temperature seals handle the radiant heat from the process reliably.
On a packaging machine running multiple box sizes, the 100 mm adjustment allows a single cylinder to act as the end stop for various case lengths, changed in seconds by turning the rear screw.
Choose the SCJ80 when your application requires a substantial force output in the half-ton class, specifically 2513 N of push at standard plant air pressure. If your load calculation falls short, the SCJ63 delivers 1559 N, while a step up to the SCJ100 provides 3927 N, both maintaining the adjustable-stroke convenience. This is the ideal cylinder when you need to fine-tune the end position on a heavy tooling slide without re-machining hard stops.
For a direct replacement, match an AirTAC SCJ adjustable-stroke cylinder with an 80 mm bore, a 200 mm maximum stroke, and a -100 adjust range. The PT3/8 port thread and the basic mounting configuration must be confirmed. At this 200 mm stroke length, ensure the rod is guided externally if significant side loads are present, or consider a guided cylinder to prevent bending moments on the 25 mm piston rod.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 2513 N, and the pull force on the single rod is 2268 N. If your system runs at 0.9 MPa, the push force increases to 4523 N. These values are identical to the fixed-stroke SC80 cylinder.
The -100 code means the rear cap has an adjusting screw that can shorten the stroke end by up to 100 mm. The nominal 200 mm stroke is the maximum; you can set the cylinder to stop reliably at any point between 100 mm and 200 mm by turning the screw, without changing the cylinder itself.
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