Airtac SCJ50 Standard Cylinder SCJ50X150-30
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X150-30 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, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke150 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X150-30
The AirTAC SCJ50X150-30 is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a nominal 150 mm stroke, featuring a rear-cap adjusting screw that provides up to 30 mm of field-adjustable stroke-end reduction. This allows machine builders to fine-tune the piston stop position during commissioning or format changes without swapping the cylinder or adding external hard stops. At 0.5 MPa, it delivers 982 N of push force and 825 N on the pull stroke, making it a capable mid-range actuator for clamping, pressing, and positioning tasks.
Built on the proven SC tie-rod platform, this model uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The adjustable air cushion at each end is 21 mm long, providing smooth deceleration for speeds up to 800 mm/s. The body length A(SCJ) is 194 mm plus the nominal stroke, slightly longer than a fixed-stroke SC to accommodate the adjusting mechanism. This genuine AirTAC cylinder is ready to ship from AirtacDistr with full manufacturer warranty support.
Airtac SCJ50 Standard Cylinder SCJ50X150-30 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X150-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 150 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 SCJ50X150-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SCJ50X150-30 Is Used
Commissioning & Process Tuning
The 30 mm adjustment screw lets technicians fine-tune the end-of-stroke position during initial machine setup and process optimization trials without disassembling the actuator or machining custom stops.
Product Changeover Stations
On packaging or assembly lines running multiple product sizes, operators can quickly adjust the cylinder stroke to match different box heights or part dimensions, reducing changeover downtime.
Wear Compensation in Clamping
In high-cycle clamping fixtures, the adjustable stroke can be periodically extended to compensate for jaw or pad wear, maintaining consistent clamping force without replacing the cylinder.
Is the Airtac SCJ50 Standard Cylinder SCJ50X150-30 the Right Cylinder?
Choose the SCJ50X150-30 when you need a 50 mm bore actuator with the ability to dial in the exact stroke end position on the machine. If your application requires more force, stepping up to the 63 mm bore provides 1559 N of push at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore delivers 628 N. The adjustable stroke is ideal for prototype builds and multi-product lines, but if the stroke length is permanently fixed, the standard SC50X150 offers a shorter overall body length and a simpler bill of materials.
For replacement, match this cylinder with another AirTAC SCJ50X150-30 to guarantee identical port threads (PT1/4), mounting footprint, and the 30 mm adjustment range. If you are adding sensors, specify the -S magnet option. For strokes of 300 mm or more, always evaluate side-loading on the 20 mm rod; an external guide rail or a guided cylinder assembly is recommended to prevent rod bending and premature seal wear.
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 SCJ50X150-30 FAQ
At the standard operating pressure of 0.5 MPa, this cylinder produces 982 N of push force and 825 N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 1963 N. The pull force is lower because the 20 mm piston rod reduces the effective piston area on the return stroke.
Yes, you can replace an SC50X150 with the SCJ50X150-30, but you must account for the slightly longer overall body length of the SCJ series. The mounting footprint, rod thread (M16x1.5), and port size (PT1/4) are identical. Ensure the 30 mm adjustment screw has clearance at the rear cap and does not interfere with adjacent machine structures.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ50 Standard Cylinder SCJ50X150-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.