Airtac SCJ100 Standard Cylinder SCJ100X800-100
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X800-100 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, 800mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke800 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X800-100
The SCJ100X800-100 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, built on a robust tie-rod design. Its rear-cap adjusting screw provides up to 100 mm of stroke-end reduction, letting you fine-tune the 800 mm nominal stroke for commissioning or format changes without swapping the cylinder. At 0.5 MPa, it delivers a push force of 3927 N and a pull force of 3681 N, driven by a 25 mm diameter piston rod.
This 100 mm bore cylinder uses PT1/2 ports and an M20x1.5 rod thread, with a 29 mm air cushion for smooth deceleration. The body length (A dimension) is 245 mm, making it a direct dimensional match for replacing another SCJ100 of the same configuration. The standard TPU seal operates reliably from -20 to +70 °C, and the maximum operating pressure is 1.0 MPa, yielding a theoretical push force of 7068 N.
Airtac SCJ100 Standard Cylinder SCJ100X800-100 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X800-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 800 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 SCJ100X800-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SCJ100X800-100 Is Used
Long-Stroke Material Handling
Adjust the stroke end to precisely align a pusher or stop gate on an 800 mm conveyor section, accommodating different product sizes during changeovers without mechanical stops.
Industrial Press Feed
Fine-tune the insertion depth of a part into a press or stamping die. The 100 mm adjustment range allows operators to compensate for tooling wear or different part geometries on the fly.
Automated Gluing Station
Control the exact travel of a glue applicator head across a wide panel. The adjustable stroke lets you set the bead length perfectly during initial setup and readjust as needed for new product runs.
Is the Airtac SCJ100 Standard Cylinder SCJ100X800-100 the Right Cylinder?
Choose the SCJ100X800-100 when you need substantial force for a long stroke and the ability to dial in the exact end position on the machine. If your load requires less force, stepping down to an SCJ80 bore reduces push force to 2513 N at 0.5 MPa. For higher force needs, the SCJ125 bore offers 6136 N at the same pressure. This cylinder is ideal when the application demands a stroke length that is available as standard, avoiding the lead time of a fully custom cylinder.
For strokes of 800 mm, carefully evaluate side-loading on the 25 mm rod. If the load is not guided externally, rod deflection can cause premature seal wear and binding. In such cases, use an external guide rail or consider a guided cylinder assembly. As a direct replacement, this unit matches any AirTAC SCJ100X800-100 with PT ports, basic mounting, and no magnet. If position sensing is needed, select the -S magnet option for use with CMSG/DMSG sensors.
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 SCJ100X800-100 FAQ
At the standard 0.5 MPa operating pressure, the push force is 3927 N and the pull force is 3681 N. The maximum push force at 0.9 MPa is 7068 N. The pull force is lower because the 25 mm rod reduces the effective piston area on the return stroke.
A screw in the rear end cap limits how far the piston can retract. By turning the screw, you can shorten the stroke end by up to 100 mm from the nominal 800 mm. This is a mechanical stroke-end adjustment for setup and fine-tuning, not a force or speed control.
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