Airtac SCJ100 Standard Cylinder SCJ100X350-75S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-75S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø100mm bore, 350mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke350 mm
- Stroke adjust-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-75S
The SCJ100X350-75S delivers up to 3927 N of push force at 0.5 MPa, giving you a powerful yet tuneable linear drive for heavy industrial tasks. Its 25 mm piston rod and 29 mm air cushion provide robust guidance and smooth end-of-stroke deceleration, while the rear adjusting screw lets you shorten the effective stroke end by up to 75 mm without dismounting the cylinder.
This is a genuine AirTAC double-acting, single-rod, tie-rod cylinder with a built-in magnet. The magnet allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for reliable, non-contact position sensing—ideal for commissioning and format changeovers where the stroke must be dialled in precisely on the machine.
Airtac SCJ100 Standard Cylinder SCJ100X350-75S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 mm |
| Stroke adjustment | Up to 75 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 SCJ100X350-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ100X350-75S Is Used
Commissioning & Process Tuning
The 75 mm adjustment screw allows engineers to fine-tune the end-stop position during initial machine setup or process optimization without swapping cylinders or machining external stops.
Variable-Format Packaging
Adjust the push stroke on a packaging plow or diverter to handle different box or pallet sizes. The 3927 N force at 0.5 MPa handles heavy product collation reliably.
Wear Compensation in Presses
In clamping or pressing fixtures, the stroke can be incrementally extended over the 75 mm range to compensate for pad or tooling wear, maintaining consistent clamp force without mechanical shims.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-75S the Right Cylinder?
Choose this 100 mm bore when the 80 mm bore's 2513 N push at 0.5 MPa is marginal. If you need more force, stepping up to the 125 mm bore provides 6136 N push. The 75 mm adjustment range makes this SCJ the right pick when you need to fine-tune the stroke end position over a long range, such as compensating for tooling wear or adapting to different product sizes. For a fixed, non-adjustable stroke, the standard SC100X350 is a simpler alternative. At a 350 mm stroke, be mindful of side loads; if the rod experiences lateral force, use an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear. A direct replacement must match the 100 mm bore, 350 mm nominal stroke, 75 mm adjust range, PT port thread, basic mounting, and built-in magnet.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ 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 SCJ100X350-75S FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is lower due to the single 25 mm rod, giving 3681 N at 0.5 MPa and 6621 N at 0.9 MPa. These values are identical to the fixed-stroke SC100 series.
Only if you need the adjustable stroke feature. The SCJ100X350-75S is a direct dimensional match for an SC100X350 in terms of bore, rod, and port size, but the body length is slightly longer to house the adjusting screw. Ensure your mounting space can accommodate the A(SCJ) body length of 245 mm.
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