Airtac SCJ32 Standard Cylinder SCJ32X80-40S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X80-40S 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, 80mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke80 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X80-40S
The AirTAC SCJ32X80-40S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap screw provides up to 40 mm of stroke-length reduction, letting you fine-tune the end position from the nominal 80 mm down to 40 mm without replacing the unit. The 12 mm rod and M10x1.25 rod thread suit light automation tasks, and the 21 mm air cushion at each end decelerates the piston quietly.
This model includes a built-in magnet (suffix -S), so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for non-contact position sensing. Operating on 40 µm filtered air from 0.15 to 1.0 MPa, it delivers 402 N of push force at 0.5 MPa and up to 724 N at 0.9 MPa. The PT1/8 ports and standard TPU seals cover a -20 to +70 °C working range, making it a genuine AirTAC workhorse for compact, adjustable-stroke applications.
Airtac SCJ32 Standard Cylinder SCJ32X80-40S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X80-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 80 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 SCJ32X80-40S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SCJ32X80-40S Is Used
Commissioning & Setup
Fine-tune the end stop of a pick-and-place arm during initial machine setup. The 40 mm adjustment range allows engineers to dial in the exact stroke length without fabricating custom mechanical stops.
Product Diverting
Adjust the stroke of a diverter gate on a small conveyor line to handle different package widths. The screw adjustment makes changeovers between product runs fast and tool-free.
Wear Compensation
Take up mechanical wear in a clamping fixture over time. As gripper pads or linkage pins wear, the stroke end can be easily extended to maintain consistent clamping force and position.
Is the Airtac SCJ32 Standard Cylinder SCJ32X80-40S the Right Cylinder?
Choose the SCJ32 when your application requires a compact adjustable stroke in the 32 mm bore class. With 402 N of push force at 0.5 MPa, it is ideal for light pressing, sorting, or diverting. If you need more force, step up to the SCJ40, which provides 628 N of push at the same pressure. For applications where the stroke is fixed and never needs field adjustment, the standard SC32 fixed-stroke cylinder is a simpler, more cost-effective alternative.
To replace an existing SCJ32X80-40S, match the 32 mm bore, 80 mm nominal stroke, 40 mm adjust range, PT1/8 port thread, and the built-in magnet. This basic-mount model uses the cylinder body for installation; if you need a pivoting motion, the TC centre trunnion with TCM1 bracket is available as a mounting accessory.
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 SCJ32X80-40S FAQ
A screw in the rear cap acts as an internal stop for the piston. Turning the screw changes the stroke end position within a 40 mm range. The nominal 80 mm stroke is the maximum; you can shorten it down to 40 mm. This adjusts only the end position, not the cylinder's force or speed.
At the standard 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N. The pull force is lower because the 12 mm rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 804 N.
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