Airtac SCJ100 Standard Cylinder SCJ100X750-100
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X750-100 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, 750mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke750 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X750-100
The SCJ100X750-100 is a double-acting, single-rod pneumatic cylinder with a 100 mm bore and a nominal 750 mm stroke, featuring a rear-cap adjusting screw that provides up to 100 mm of field-adjustable stroke-end reduction. This lets you fine-tune the piston stop position for commissioning or format changes without swapping the cylinder. At 0.5 MPa, it delivers 3927 N of push force and 3681 N on the pull stroke, driven through a 25 mm diameter piston rod.
With a PT1/2 port, an M20x1.5 rod thread, and a 29 mm air cushion, this tie-rod cylinder handles operating pressures from 0.15 to 1.0 MPa. Its body length A(SCJ) is 245 mm, and the standard speed range for this bore is 30-800 mm/s. The adjustable screw sets only the stroke end position; it does not alter force output or act as a speed controller.
Airtac SCJ100 Standard Cylinder SCJ100X750-100 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X750-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 750 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 SCJ100X750-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×750 | 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 SCJ100X750-100 Is Used
Multi-Product Packaging Stops
In packaging lines handling different box heights, the 100 mm adjustment screw lets operators quickly change the final push position of a 750 mm stroke cylinder to match each product size, eliminating the need for mechanical stop changes.
Press-Fit Depth Calibration
During the setup of a 100 mm bore press-fit station, the adjustable stroke allows engineers to incrementally dial in the exact insertion depth over the 750 mm travel, compensating for part tolerances without reprogramming the PLC.
Wear Compensation on Clamping Jigs
For a long-stroke clamping fixture, the rear screw can be adjusted to take up slack as gripper pads wear down over time, maintaining consistent clamping force and position without disassembling the 100 mm bore actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X750-100 the Right Cylinder?
Choose the SCJ100X750-100 when you need to dial in a precise end-of-stroke position on a 100 mm bore platform without adding external hard stops. If your force requirement is lower, stepping down to an 80 mm bore reduces push force to 2513 N at 0.5 MPa; for higher force, the 125 mm bore provides 6136 N. This adjustable-stroke model is ideal during commissioning and for processes with multiple product heights, but if your application has a fixed, unchanging stroke, the standard SC100X750 fixed-stroke cylinder is a simpler, more economical choice.
For this 750 mm stroke length, be mindful of side-loading that can cause rod bending. If the load is not guided externally, consider pairing the cylinder with a guide unit or switching to a guided cylinder. A direct replacement must match the 100 mm bore, 750 mm nominal stroke, the 100 mm adjustment range, PT port thread, and basic mounting. For a pivoting mount, the TC centre trunnion (F-SC100TC) is available; for surface mounting, use the LB foot bracket (F-SC100LB).
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 SCJ100X750-100 FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 7854 N. The pull force is always lower because the 25 mm piston rod reduces the effective area on the return stroke.
Yes, the SCJ100X750-100 is a direct dimensional replacement for an SC100X750, provided your mounting and porting (PT1/2) match. The SCJ body is slightly longer to accommodate the adjusting screw, so ensure you have clearance at the rear cap. The adjustment range of 100 mm allows you to shorten the stroke end from the nominal 750 mm without any other modifications.
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