Airtac SCJ32 Standard Cylinder SCJ32X50-40
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X50-40 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 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-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X50-40
The SCJ32X50-40 is a 32 mm bore double-acting single-rod cylinder with a 50 mm nominal stroke and a 40 mm rear adjusting screw range. This compact tie-rod design delivers 402 N of push force at 0.5 MPa, making it a precise actuator for light-duty positioning tasks where the stroke end must be dialled in during commissioning or changeover.
With a 12 mm rod, M10x1.25 rod thread, and PT1/8 ports, the SCJ32 body length A is 182 mm. The adjustable screw physically limits the piston's end position, letting you shorten the effective stroke by up to 40 mm without swapping the cylinder or adding external hard stops.
Airtac SCJ32 Standard Cylinder SCJ32X50-40 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X50-40 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 50 mm |
| Stroke adjustment | Up to 40 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 SCJ32X50-40
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×50 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ32X50-40 Is Used
End-Stop Fine Tuning
Dial in the exact stop position for a small pick-and-place gripper jaw or ejector pin. The 40 mm adjustment range allows operators to compensate for part tolerance variations without reprogramming.
Dispensing & Dosing
Adjust the plunger stroke of a low-volume adhesive or lubricant dispenser. The screw lets you quickly change the shot size by limiting the piston travel, ideal for pilot production runs.
Sensor & Gate Actuation
Set the precise opening angle of a small diverter gate or the trigger point of a mechanical sensor. The adjustable stroke end eliminates the need for shims or custom-length actuators.
Is the Airtac SCJ32 Standard Cylinder SCJ32X50-40 the Right Cylinder?
Choose the SCJ32X50-40 when you need to fine-tune a 50 mm stroke by up to 40 mm in a confined space. If the 402 N push force at 0.5 MPa is marginal, stepping up to the 40 mm bore SCJ40 delivers 628 N. For applications where the stroke is fixed and never needs field adjustment, the standard SC32 fixed-stroke cylinder is a simpler, cost-effective alternative. This model is a direct dimensional replacement only for another AirTAC SCJ32 with a 50 mm nominal stroke, 40 mm adjust range, PT ports, and basic mounting.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ32X50-40 FAQ
A rear-cap adjusting screw limits how far the piston extends. With a 50 mm nominal stroke, the screw can shorten the stroke end by up to 40 mm, giving an effective stroke adjustable from 10 mm to 50 mm. It does not change the cylinder's force or speed.
At 0.5 MPa, push force is 402 N and pull force is 345 N. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
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