Airtac SCJ32 Standard Cylinder SCJ32X400-10
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X400-10 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø32mm bore, 400mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke400 mm
- Stroke adjust-10 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X400-10
The SCJ32X400-10 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the stop position by up to 10 mm without replacing the unit. Its 12 mm diameter piston rod delivers 402 N of push force at 0.5 MPa (724 N at 0.9 MPa), making it a precise actuator for light-to-medium automation tasks.
This tie-rod cylinder uses a PT1/8 port and an M10x1.25 rod thread, with a 21 mm air cushion at each end to decelerate the piston smoothly. The body length A(SCJ) is 182 mm plus stroke, and the standard stroke range for the 32 mm bore extends to 1000 mm, so this 400 mm model is well within standard limits.
Airtac SCJ32 Standard Cylinder SCJ32X400-10 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X400-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 400 mm |
| Stroke adjustment | Up to 10 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 SCJ32X400-10
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ32X400-10 Is Used
Commissioning Fine-Tuning
During machine setup, the 10 mm rear screw lets technicians precisely match the cylinder's end-of-stroke to a fixture or stop, eliminating the need for shims or custom spacers.
Wear Take-Up on Stops
In repetitive stopping applications, the adjustable stroke compensates for gradual wear on external bumpers or tooling, maintaining consistent positioning over time without cylinder swaps.
Format Changeover
For small-batch production lines, the stroke can be quickly re-adjusted when switching between product sizes, reducing downtime compared to changing fixed-stroke cylinders.
Is the Airtac SCJ32 Standard Cylinder SCJ32X400-10 the Right Cylinder?
Choose the SCJ32X400-10 when you need to dial in the stroke end during commissioning or after tooling wear. If 402 N of push force is marginal, stepping up to the 40 mm bore provides 628 N at the same 0.5 MPa. For applications that do not require stroke adjustment, the fixed-stroke SC32X400 is a simpler alternative. A direct replacement must match the 32 mm bore, 400 mm nominal stroke, 10 mm adjust range, PT port thread, and basic mounting style.
At a 400 mm stroke, the extended rod is susceptible to side loading. If the load is not guided externally, consider adding a linear guide or switching to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ32X400-10 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. The theoretical maximum at 1.0 MPa is 82 kgf.
Physically, the SCJ body is slightly longer to house the adjusting screw. You can replace an SC with an SCJ if you need the adjustable stroke feature and have space for the extra length, but ensure the bore, port size, and mounting match.
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