Airtac SCJ100 Standard Cylinder SCJ100X280-100S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X280-100S 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, 280mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke280 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X280-100S
The SCJ100X280-100S is a double-acting, single-rod pneumatic cylinder that puts fine stroke-end tuning directly in your hands. With a 100 mm bore generating 3927 N of push force at 0.5 MPa, its rear adjusting screw lets you shorten the effective stroke by up to 100 mm in the field, making it ideal for commissioning trials or format changes on heavy tooling.
This model includes a built-in magnet, so you can clamp CMSG/DMSG/EMSG reed or solid-state sensors directly onto the tie-rod barrel for reliable end-of-stroke detection. The 25 mm rod, PT1/2 ports, and 29 mm air cushion handle demanding deceleration tasks, while the tie-rod construction keeps service straightforward.
Airtac SCJ100 Standard Cylinder SCJ100X280-100S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X280-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 280 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 SCJ100X280-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×280 | 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 SCJ100X280-100S Is Used
Format Changeovers
Quickly dial in a new end position for packaging or labeling machinery when switching between product sizes, without swapping the cylinder or adding hard stops.
Clamping with Wear Compensation
Use the 100 mm adjust range to take up slack as gripper pads or tooling wear down, maintaining consistent clamping force without reprogramming.
Commissioning & Prototyping
Fine-tune the stroke end on a new assembly line or test rig in real time. The 3927 N push force at 0.5 MPa handles heavy prototype tooling with ease.
Is the Airtac SCJ100 Standard Cylinder SCJ100X280-100S the Right Cylinder?
Step up to a 125 mm bore if your application demands more than the 3927 N push force this 100 mm bore delivers at 0.5 MPa; the SCJ125 provides 6136 N. For applications that don't require field-adjustable stroke, a fixed-stroke SC100 cylinder offers a simpler, more compact solution. If you are replacing an existing unit, match the bore, 280 mm nominal stroke, 100 mm adjust range, PT port thread, and the built-in magnet (S suffix). At this 280 mm stroke, ensure the rod is guided externally if significant side loads are present, or consider a guided cylinder to prevent rod bending.
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 SCJ100X280-100S FAQ
At the standard 0.5 MPa operating pressure, it generates 3927 N of push force and 3681 N of pull force. The maximum push force at 0.9 MPa is 7068 N. The pull force is lower because the 25 mm piston rod reduces the effective piston area on the return stroke.
You can replace an existing AirTAC SCJ100 adjustable-stroke cylinder with this model if the bore, nominal stroke, and adjust range match. It is not a direct drop-in replacement for a fixed-stroke SC100, as the SCJ body is longer to house the rear adjusting screw. Always verify the overall length against your machine's envelope.
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