Airtac SCJ32 Standard Cylinder SCJ32X50-30S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X50-30S 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. Ø32mm bore, 50mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke50 mm
- Stroke adjust-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X50-30S
The AirTAC SCJ32X50-30S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, giving you a 30 mm fine-tuning range on the nominal 50 mm stroke. This model includes a built-in magnet, allowing direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection without external brackets. It delivers 402 N of push force at 0.5 MPa and uses a 12 mm diameter piston rod with an M10x1.25 thread.
Because the stroke is set by a rear-cap adjusting screw, you can dial in the exact stopping position during commissioning or format changes without swapping the cylinder. The tie-rod body is 182 mm long (dimension A) and features a 21 mm air cushion to decelerate the piston quietly. The PT1/8 port and standard TPU seals suit filtered air from -20 to +70 °C.
Airtac SCJ32 Standard Cylinder SCJ32X50-30S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X50-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 50 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCJ32 Standard Cylinder SCJ32X50-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SCJ32 Standard Cylinder SCJ32X50-30S Is Used
Commissioning Fine-Tuning
During machine setup, the 30 mm adjustment screw lets technicians precisely set the push stroke for a label applicator pad without iterative shimming or mechanical stop changes.
Small-Part Diverter Gates
Adjust the retract stroke end to perfectly align a diverter gate with different lane widths on a packaging conveyor, using the built-in magnet for gate position confirmation.
Wear Take-Up on Clamps
Compensate for jaw or pad wear on a small pneumatic clamp by incrementally extending the stroke end via the rear screw, maintaining consistent clamping force without replacing the cylinder.
Is the Airtac SCJ32 Standard Cylinder SCJ32X50-30S the Right Cylinder?
Choose this 32 mm bore when your application needs up to 402 N of push force at standard plant pressure. If you require more force, stepping up to the 40 mm bore (SCJ40) provides 628 N push at the same 0.5 MPa. For applications that never need stroke adjustment, the fixed-stroke SC32 is a simpler, lower-cost alternative. This SCJ32X50-30S is a direct replacement for any AirTAC SCJ32 cylinder with a 50 mm nominal stroke, 30 mm adjustment range, PT ports, basic mounting, and a magnet.
For strokes of 300 mm or more, consider the rod's slenderness ratio. A 12 mm rod extending beyond 300 mm can buckle under high side loads; use an external linear guide or switch to a guided cylinder to protect the rod and bearing.
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 SCJ32 Standard Cylinder SCJ32X50-30S FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa operating limit is 724 N. Because it is a single-rod cylinder, the pull force is always lower due to the rod area.
Yes, if you need the 30 mm stroke adjustment feature. The SCJ32X50-30S shares the same bore, port size (PT1/8), and rod thread (M10x1.25) as an SC32. Just ensure the slightly longer body length (182 mm) fits your mounting space.
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