Airtac SCJ100 Standard Cylinder SCJ100X500-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X500-30S 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, 500mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke500 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X500-30S
The SCJ100X500-30S is a double-acting, single-rod pneumatic cylinder from AirTAC, featuring a rear-cap adjusting screw that provides a 30 mm field-adjustable stroke end. This allows fine-tuning of the piston's stop position without replacing the cylinder or adding external hard stops. With a 100 mm bore and 500 mm nominal stroke, it delivers a substantial 3927 N of push force at 0.5 MPa, making it a powerful actuator for heavy-duty industrial tasks.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The cylinder uses a 25 mm piston rod, PT1/2 port threads, and a standard TPU seal. Its 29 mm air cushion decelerates the piston smoothly at the end of travel, protecting the end cap and reducing noise in high-cycle applications.
Airtac SCJ100 Standard Cylinder SCJ100X500-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X500-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 500 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 SCJ100X500-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SCJ100X500-30S Is Used
Commissioning & Process Tuning
During new machine setup or process optimization, the 30 mm adjustment screw allows engineers to precisely dial in the actuator's end-stop position for tasks like pressing, clamping, or material positioning, eliminating guesswork and mechanical shimming.
Product Format Changeover
On packaging or assembly lines that handle multiple product sizes, the adjustable stroke enables a quick mechanical changeover. An operator can reset the cylinder's stop for a new box height or pallet size in seconds without tools, minimizing downtime.
Wear Compensation in Clamping
In high-cycle clamping fixtures, the adjustable stroke end can be periodically advanced to compensate for wear on gripper pads or the clamped part itself. This maintains consistent clamping force and position accuracy over the tooling's lifespan.
Is the Airtac SCJ100 Standard Cylinder SCJ100X500-30S the Right Cylinder?
Choose the SCJ100X500-30S when your application requires a powerful push force of nearly 4000 N at standard shop air pressure, combined with the ability to dial in the exact stroke end position. If your force requirement is lower, stepping down to an SCJ80 bore reduces push force to 2513 N at 0.5 MPa, offering a more compact and economical solution. For even greater force, the SCJ125 bore provides 6136 N. If your application does not require stroke adjustability, a fixed-stroke SC100X500 cylinder is a simpler, cost-effective alternative. For a direct replacement, match the 100 mm bore, 500 mm nominal stroke, 30 mm adjust range (-30), PT port thread, basic mounting, and the -S magnet option.
Given the 500 mm stroke length, be mindful of side-loading forces that can cause rod deflection and premature seal wear. For applications with significant lateral loads, use an external guide rail system or consider a guided cylinder assembly to ensure the rod moves in a pure linear path and to protect the rod bearings.
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 SCJ100X500-30S FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa. The pull force is slightly lower due to the 25 mm piston rod area, delivering 3681 N at 0.5 MPa. These forces are identical to a fixed-stroke SC100 cylinder.
No, the SCJ100X500-30S is not designed for position holding. The rear adjusting screw only sets the physical stroke end, and the air cushion only decelerates the piston. If air pressure is lost or the control valve is centered, the piston will drift. An external rod lock or pilot-operated check valve is required to safely hold a load without live pressure.
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