Airtac SCJ100 Standard Cylinder SCJ100X60-20
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X60-20 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø100mm bore, 60mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke60 mm
- Stroke adjust-20 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X60-20
The SCJ100X60-20 is a double-acting, single-rod pneumatic cylinder from the AirTAC SCJ tie-rod series, featuring a rear-cap adjusting screw that provides up to 20 mm of field-adjustable stroke-end reduction. This lets you fine-tune the piston stop position without removing the cylinder or adding external hard stops, which is invaluable during commissioning and format changeovers. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa, making it a powerful actuator for pressing, clamping, and material handling tasks.
This model has a nominal 60 mm stroke, a 25 mm diameter piston rod with M20x1.5 threads, and PT 1/2 ports. The cylinder body has a length A of 245 mm and includes an adjustable air cushion for smooth deceleration. The operating pressure range is 0.15 to 1.0 MPa, and the standard speed range for this bore is 30 to 800 mm/s. This basic configuration comes without a magnet, mounting accessories, or special seals, using the default TPU seal material and PT threads.
Airtac SCJ100 Standard Cylinder SCJ100X60-20 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X60-20 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 60 mm |
| Stroke adjustment | Up to 20 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 SCJ100X60-20
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×60 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ100X60-20 Is Used
End-Stop Tuning for Press Fits
The 20 mm adjustment screw allows operators to fine-tune the final pressing depth for bearing or bushing insertion, compensating for part tolerances without reprogramming the machine.
Product Stopper on Conveyors
Deploy the SCJ100X60-20 as a heavy-duty line stop. The adjustable stroke lets you quickly change the stopping position for different box or pallet sizes on the same conveyor line.
Clamping with Variable Thickness
In a clamping fixture for welding or assembly, the adjustable stroke end accommodates varying workpiece thicknesses, ensuring consistent clamping force without crushing the part.
Is the Airtac SCJ100 Standard Cylinder SCJ100X60-20 the Right Cylinder?
Choose the SCJ100 bore when your application requires a push force around 3927 N at a standard 0.5 MPa supply. If your force requirement is lower, stepping down to an 80 mm bore provides 2513 N of push force at the same pressure, which can reduce air consumption and overall size. For higher force needs, the 125 mm bore offers 6136 N. This adjustable-stroke model is the right choice when you need to precisely dial in the stroke end position on the machine; if a fixed, non-adjustable stroke is sufficient, the standard SC series is a more economical alternative.
For a direct replacement, match this model's 100 mm bore, 60 mm nominal stroke, and 20 mm adjustment range. The replacement must also have PT ports and a basic mounting configuration. If you need to add position sensing, select the -S magnet option to use CMSG/DMSG sensors. For strokes of 300 mm or more, consider the rod's support; at long extensions, side loading can cause bending. Use an external guide rail or switch to a guided cylinder if significant transverse forces are present.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ100X60-20 FAQ
At the standard 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. The pull force is lower because the 25 mm piston rod reduces the effective piston area on the return stroke. The maximum push force at 0.9 MPa is 7068 N.
The SCJ is slightly longer in body length than a comparable SC to house the adjusting screw mechanism, so it is not a direct dimensional drop-in replacement. It is a functional upgrade when you need field-adjustable stroke. To replace an existing SCJ, ensure the replacement has the same 100 mm bore, 60 mm nominal stroke, 20 mm adjustment range, and PT port threads.
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