Airtac SCJ100 Standard Cylinder SCJ100X80-30SH
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-30SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø100mm bore, 80mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke80 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-30SH
The SCJ100X80-30SH is a double-acting, single-rod pneumatic cylinder engineered for applications requiring precise, field-adjustable stroke-end positioning. With a 100mm bore delivering 3927 N of push force at 0.5 MPa, this model features a rear-cap adjusting screw that provides up to 30 mm of fine-tuning, allowing operators to dial in the exact stop position without swapping the cylinder. The built-in magnet (-S suffix) enables direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection.
Built for demanding environments, the -H suffix specifies a Viton (FKM) piston seal, extending the operating temperature range to 0–150 °C and providing excellent resistance to aggressive media. The 25 mm piston rod with M20x1.5 threads ensures robust load coupling, while the PT3/8 ports and 29 mm air cushion deliver smooth, controlled deceleration at the end of travel. The body length A(SCJ) for this bore is 245 mm, making it a compact solution for heavy-duty adjustable-stop tasks.
Airtac SCJ100 Standard Cylinder SCJ100X80-30SH Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-30SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| 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, 29 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.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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.
Model Code: Airtac SCJ100 Standard Cylinder SCJ100X80-30SH
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Where the Airtac SCJ100 Standard Cylinder SCJ100X80-30SH Is Used
Commissioning & Fine-Tuning
Perfect for machine builders who need to precisely dial in a mechanical stop during initial setup. The 30mm adjustment range eliminates the need for shimming or fabricating custom hard stops, accelerating the commissioning process.
High-Temperature Automation
The Viton seals and high-force output make this cylinder ideal for foundry equipment, autoclaves, or pressing stations where ambient temperatures reach up to 150°C and a robust, adjustable actuator is required.
Wear Compensation
In long-running production lines, tooling and contact surfaces wear down over time. The rear adjusting screw allows operators to quickly compensate for this wear by extending the effective stroke, maintaining consistent process quality without downtime for cylinder replacement.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-30SH the Right Cylinder?
This 100mm bore SCJ unit is a workhorse for mid-to-high force applications; if your load requires less force, stepping down to the 80mm bore (2513 N push at 0.5 MPa) can reduce air consumption and physical size. For fixed-stroke applications where the end position never changes, a standard SC100X80 cylinder is a more economical choice, while a guided cylinder should be considered if the rod is subjected to significant side loads. This SCJ100X80-30SH is a direct replacement for any AirTAC SCJ100 with an 80mm nominal stroke, 30mm adjust range, PT ports, a magnet, and a Viton seal.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ100 Standard Cylinder SCJ100X80-30SH FAQ
The rear cap houses a fine-thread adjusting screw that acts as an internal, variable end-stop for the piston's retraction stroke. By turning this screw, you can shorten the nominal 80mm stroke by up to 30mm in a controlled manner. It adjusts the stroke end position only and does not alter the cylinder's bore, force output, or forward stroke length.
At the standard operating pressure of 0.5 MPa, the SCJ100X80-30SH generates 3927 N of pushing force and 3681 N of pulling force. The maximum theoretical force at 1.0 MPa is 801 kgf. The pull force is lower than the push force because the 25mm piston rod reduces the effective piston area on the retract side.
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