Airtac SCJ100 Standard Cylinder SCJ100X25-10
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X25-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø100mm bore, 25mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke25 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X25-10
The SCJ100X25-10 is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, giving you up to 10 mm of field-adjustable stroke-end reduction without removing the cylinder from the machine. With a 100 mm bore and a 25 mm rod, it generates a substantial 3927 N of push force at 0.5 MPa (pull force is 3681 N), making it a powerful actuator for compact-stroke applications requiring fine positional tuning.
This model's PT1/2 port and M20x1.5 rod thread provide robust air flow and mechanical connection. The body length A for the SCJ100 series is 245 mm, and the adjustable air cushion helps decelerate the piston smoothly. The 10 mm adjustment range is ideal for commissioning tweaks or taking up mechanical wear in short-throw clamping and pressing fixtures.
Airtac SCJ100 Standard Cylinder SCJ100X25-10 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X25-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 25 mm |
| Stroke adjustment | Up to 10 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 SCJ100X25-10
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×25 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ100X25-10 Is Used
Precision Clamping
The 10 mm screw adjustment lets operators dial in exact clamping pressure points on assembly jigs, compensating for variations in part thickness without reprogramming the machine.
Short-Throw Stops
Used as a pneumatic stop on conveyor lines, the adjustable stroke end allows quick fine-tuning of the stopping position for different product sizes during batch changeovers.
Press-Fit Verification
In press-fit applications, the stroke can be precisely limited to verify insertion depth, ensuring consistent assembly quality and preventing over-travel damage to components.
Is the Airtac SCJ100 Standard Cylinder SCJ100X25-10 the Right Cylinder?
For applications needing more force, stepping up to the 125 mm bore provides 6136 N of push force at the same 0.5 MPa pressure. If a fixed, non-adjustable stroke is sufficient, the standard SC100 series offers the same force output in a simpler package. When replacing an existing unit, ensure the match includes the 100 mm bore, 25 mm nominal stroke, 10 mm adjust range, and PT port thread. This basic-mount model accepts SCJ-series foot (LB) or front flange (FA) accessories if mounting needs change later.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ100X25-10 FAQ
At the standard 0.5 MPa operating pressure, this 100 mm bore cylinder delivers 3927 N of push force and 3681 N of pull force. The maximum push force at 0.9 MPa is 7068 N.
No, the rear adjusting screw only sets the physical stroke end position; it does not lock the piston rod. If the load must be held without air pressure, you need an external rod brake or a pilot-operated check valve in the circuit.
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