Airtac SCJ32 Standard Cylinder SCJ32X50-30
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X50-30 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. 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 SCJ32X50-30
The SCJ32X50-30 is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly on the machine. Its rear-cap adjusting screw lets you shorten the nominal 50 mm stroke by up to 30 mm without removing the cylinder, making commissioning and format changes far quicker. With a 12 mm piston rod and PT1/8 ports, it delivers 402 N of push force at 0.5 MPa, rising to 724 N at the 0.9 MPa maximum operating pressure.
This 32 mm bore tie-rod cylinder uses an adjustable air cushion (21 mm long) to decelerate the piston smoothly. The body length A(SCJ) is 182 mm, and the standard stroke range for this bore extends to 1000 mm. It is a practical choice when you need to dial in a precise end position on compact automation, pick-and-place units, or small clamping fixtures.
Airtac SCJ32 Standard Cylinder SCJ32X50-30 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X50-30 |
|---|---|
| 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 SCJ32X50-30
| 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 SCJ32X50-30 Is Used
Commissioning & Setup
Fine-tune the end position of a small actuator during machine build or trial runs. The 30 mm adjustment range lets technicians dial in the exact stroke without swapping cylinders or machining external stops.
Wear Take-Up
Compensate for pad or tooling wear on a small clamping or pressing station. The rear screw can be advanced periodically to maintain consistent contact pressure without reprogramming the machine.
Format Changeover
Quickly adapt a compact packaging or labelling machine for different product sizes. Operators can adjust the stroke end stop in seconds, reducing downtime between batches.
Is the Airtac SCJ32 Standard Cylinder SCJ32X50-30 the Right Cylinder?
Choose the SCJ32X50-30 when your application requires a stroke that can be trimmed on-site. If you need more push force, stepping up to the 40 mm bore provides 628 N at 0.5 MPa. For applications where the stroke is fixed and never needs adjustment, the standard SC32X50 is a simpler, cost-effective alternative. This model is a direct replacement for another AirTAC SCJ32 adjustable-stroke cylinder with a 50 mm nominal stroke, 30 mm adjust range, PT ports, and basic mounting.
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 SCJ32X50-30 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 push force is always greater than the pull force due to the rod area.
A screw in the rear cap sets the retracted end position. Turning the screw shortens the stroke by up to 30 mm from the nominal 50 mm maximum. It adjusts only the stroke end point, not the cylinder's force or speed, and it does not lock the piston in place when air pressure is removed.
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