Airtac SCJ50 Standard Cylinder SCJ50X100-30
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø50mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke100 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X100-30
The SCJ50X100-30 is a 50 mm bore double-acting single-rod cylinder with a rear adjusting screw that lets you fine-tune the stroke end by up to 30 mm. With a 20 mm diameter piston rod and PT1/4 ports, it delivers a push force of 982 N at 0.5 MPa, making it a versatile workhorse for applications where the stop position needs to be dialled in during commissioning or after a format change.
The body length A is 194 mm, and the adjustable cushion helps decelerate the piston smoothly. This model operates on filtered air from 0.15 to 1.0 MPa and handles speeds from 30 to 800 mm/s, with a standard TPU seal for temperatures between -20 and +70 °C.
Airtac SCJ50 Standard Cylinder SCJ50X100-30 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCJ50 Standard Cylinder SCJ50X100-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ50 Standard Cylinder SCJ50X100-30 Is Used
Commissioning & Setup
Ideal for machine builders who need to dial in the exact end-stop position on a new assembly line without changing the cylinder.
Format Changeover
Quickly adjust the stroke for different product sizes on a packaging machine by turning the rear screw instead of replacing the actuator.
Wear Compensation
Take up mechanical play or tooling wear over time by advancing the stroke end, maintaining consistent clamping or pressing force.
Is the Airtac SCJ50 Standard Cylinder SCJ50X100-30 the Right Cylinder?
Choose the SCJ50X100-30 when you need to set the exact stroke end on the machine without swapping cylinders. If you require more force, stepping up to the 63 mm bore provides 1559 N of push at 0.5 MPa. For a fixed stroke without the rear screw, the standard SC50X100 is the direct alternative. To replace this unit, match the 50 mm bore, 100 mm nominal stroke, 30 mm adjust range, PT threads, and basic mounting. For strokes of 300 mm or more, consider an external guide to protect the 20 mm rod from side loads.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ50 Standard Cylinder SCJ50X100-30 FAQ
At 0.5 MPa, it generates 982 N pushing and 825 N pulling. The maximum theoretical force at 1.0 MPa is 200 kgf.
Yes, if the 50 mm bore, 100 mm nominal stroke, and PT1/4 ports match. The SCJ adds a rear screw for up to 30 mm of stroke-end adjustment.
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Related AirTAC SCJ Adjustable-Stroke Cylinders
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