Airtac SCJ100 Standard Cylinder SCJ100X80-50
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 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-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-50
The SCJ100X80-50 is a double-acting, single-rod pneumatic cylinder that lets you fine-tune the stroke end position by up to 50 mm without changing the cylinder. Its rear-cap adjusting screw is ideal for commissioning trials, format changeovers, or taking up mechanical wear on the fly. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa.
This model uses a 25 mm diameter piston rod and PT1/2 ports. The adjustable air cushion decelerates the piston smoothly over the last 29 mm of travel, protecting your tooling. As a genuine AirTAC SCJ, it provides a reliable, field-configurable solution for applications where the exact stroke length needs to be dialed in on the machine.
Airtac SCJ100 Standard Cylinder SCJ100X80-50 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 50 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 SCJ100X80-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ100X80-50 Is Used
End-Stop Fine-Tuning
The 50 mm adjustment screw allows operators to precisely dial in the final stop position of a material stop gate or pusher arm without loosening mounting bolts, speeding up line changeovers.
Wear Compensation
In high-cycle clamping fixtures, the adjustable stroke can be periodically extended to compensate for wear on contact pads or tooling, maintaining consistent clamp force without replacing parts.
Product Format Changes
Quickly adapt a diverter or sorting mechanism to handle different product widths. The rear screw adjusts the cylinder's reach in seconds, eliminating the need for external hard stops.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-50 the Right Cylinder?
Choose this 100 mm bore when your application needs the 3927 N push force at 0.5 MPa. If your force requirement is lower, stepping down to the 80 mm bore provides 2513 N of push force. For applications that do not require a field-adjustable stroke, the fixed-stroke SC100 series is a more economical alternative. This SCJ100X80-50 is a direct replacement for another AirTAC SCJ adjustable-stroke cylinder with a 100 mm bore, 80 mm nominal stroke, 50 mm adjustment range, and PT ports.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ100X80-50 FAQ
The cylinder provides a push force of 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is slightly lower at 3681 N at 0.5 MPa due to the 25 mm piston rod reducing the effective piston area on the retract stroke.
A screw mechanism in the rear cap acts as an internal, adjustable end-stop for the piston. By turning the screw, you can shorten the stroke end position by up to 50 mm from the nominal 80 mm maximum. It adjusts the stopping point, not the cylinder's force or speed.
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