Airtac SCJ100 Standard Cylinder SCJ100X500-100S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X500-100S 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. Ø100mm bore, 500mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke500 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X500-100S
The SCJ100X500-100S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, offering a powerful 3927 N of push force at 0.5 MPa. Its defining feature is the rear-cap adjusting screw, which provides a generous 100 mm of stroke-end reduction, allowing machine builders to fine-tune the piston's stopping position without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for precise, non-contact position feedback. With a 25 mm diameter rod and a 29 mm air cushion, it decelerates loads smoothly. The body length (A dimension) is 245 mm, and the PT1/2 port supplies the necessary flow for its 30-800 mm/s speed range.
Airtac SCJ100 Standard Cylinder SCJ100X500-100S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X500-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 100 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 SCJ100X500-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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.
Where the Airtac SCJ100 Standard Cylinder SCJ100X500-100S Is Used
Commissioning & Setup
The 100 mm adjustment range allows engineers to dial in the exact stroke end position during machine commissioning, eliminating the need to order multiple fixed-stroke cylinders for trial-and-error setup on a new packaging line.
Format Changeovers
On a palletizing cell handling different box sizes, the SCJ100X500-100S can be quickly re-adjusted to change the push-off stroke length, dramatically reducing downtime between product runs without any mechanical disassembly.
Wear Compensation
In high-cycle clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or workpieces over time, maintaining consistent clamp force and part contact without reprogramming the machine's controller.
Is the Airtac SCJ100 Standard Cylinder SCJ100X500-100S the Right Cylinder?
Choose the SCJ100X500-100S when you need a high-force actuator with a long, tunable stroke for commissioning or format changes. If your application requires even more force, stepping up to the 125 mm bore provides 6136 N of push at the same 0.5 MPa pressure. For applications where the stroke is fixed and will never need adjustment, the standard SC100X500 fixed-stroke cylinder is a simpler, more cost-effective alternative. This adjustable model is a direct replacement for another AirTAC SCJ100 cylinder with the same 500 mm nominal stroke, 100 mm adjust range, PT ports, and a magnet. For strokes of this length, always assess the side-load on the 25 mm rod; if the load is not guided and perfectly axial, an external guide rail or a switch to a guided cylinder is strongly recommended to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ100X500-100S FAQ
Being a single-rod cylinder, push and pull forces differ. At the standard 0.5 MPa operating pressure, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 7068 N. The theoretical maximum force at 1.0 MPa is 801 kgf.
A screw in the rear cap limits how far the piston can retract, shortening the stroke end by up to 100 mm. It is a mechanical stop for stroke adjustment only. It does not lock or hold the piston in place; if air pressure is lost, the piston can drift. For load holding without pressure, you must add an external rod brake or a pilot-operated check valve.
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