Airtac SCJ100 Standard Cylinder SCJ100X250-20TC
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X250-20TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø100mm bore, 250mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke250 mm
- Stroke adjust-20 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X250-20TC
The SCJ100X250-20TC delivers a robust 3927 N of push force at 0.5 MPa, making it a powerful solution for heavy-duty industrial automation. Its rear adjusting screw provides a 20 mm field-adjustable stroke range, allowing precise end-position tuning without cylinder replacement.
Equipped with a centre trunnion (TC) mount and TCM1 bracket, this model is ideal for pivoting applications. The 25 mm piston rod and PT1/2 port ensure high flow and structural rigidity, with a body length (A) of 245 mm.
Airtac SCJ100 Standard Cylinder SCJ100X250-20TC Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X250-20TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 20 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 SCJ100X250-20TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ100X250-20TC Is Used
Format Changeovers
Quickly adjust the end stop for different product sizes on packaging or assembly lines, minimizing downtime between batches.
Material Handling
Fine-tune the push stroke for diverters or stops on conveyor systems, accommodating wear or slight variations in product positioning.
Clamping & Pressing
Dial in the exact clamping depth or pressing distance for consistent results on parts with varying tolerances.
Is the Airtac SCJ100 Standard Cylinder SCJ100X250-20TC the Right Cylinder?
For higher force requirements, the SCJ125 series offers 6136 N of push force at 0.5 MPa. If a fixed stroke is sufficient, the standard SC100 series provides a simpler, non-adjustable alternative. This SCJ100X250-20TC is a direct replacement for any AirTAC SCJ100 cylinder with a 250 mm nominal stroke, 20 mm adjust range, PT ports, and TC mount.
At a 250 mm stroke, consider external guides if significant side loads are present to prevent rod bending and ensure long seal life.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ100X250-20TC FAQ
At the standard 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. The maximum theoretical force at 1.0 MPa is 801 kgf.
A screw in the rear cap allows you to shorten the stroke end by up to 20 mm. This sets the piston's stopping point without affecting the cylinder's force or speed, unlike a flow control.
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Standard models usually ship in 3-4 days.
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Related AirTAC SCJ Adjustable-Stroke Cylinders
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