Airtac SCJ32 Standard Cylinder SCJ32X85-40S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X85-40S 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, 85mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke85 mm
- Stroke adjust-40 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X85-40S
The SCJ32X85-40S is a compact 32 mm bore double-acting, single-rod cylinder with a rear adjusting screw that lets you fine-tune the stroke end position by up to 40 mm. This model delivers 402 N of push force at 0.5 MPa and 724 N at the maximum operating pressure of 0.9 MPa, making it a precise actuator for light clamping, sorting, and feeding tasks where the final stop point must be dialled in on the machine.
A built-in magnet (-S suffix) is integrated into the piston, so standard CMSG, DMSG, or EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for non-contact position feedback. The cylinder uses a 12 mm diameter piston rod, an M10x1.25 rod thread, and PT1/8 ports, with a 21 mm air cushion at each end to decelerate the load smoothly.
Airtac SCJ32 Standard Cylinder SCJ32X85-40S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X85-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 85 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 SCJ32X85-40S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 SCJ32X85-40S Is Used
Commissioning & Setup
Dial in the exact end-stop for a pick-and-place gripper jaw during machine commissioning without swapping cylinders or machining external hard stops.
Small-Part Diverting
Fine-tune the stroke of a diverter gate on a conveyor line to handle different product widths, using the 40 mm adjustment range to set the precise push-off position.
Wear Take-Up
Compensate for pad or tooling wear in a light press or staking fixture by advancing the stroke end with the rear screw, maintaining consistent part contact.
Is the Airtac SCJ32 Standard Cylinder SCJ32X85-40S the Right Cylinder?
Choose the SCJ32 when your application needs an adjustable end-stop within a compact envelope—the 40 mm adjustment range covers most commissioning and format-change needs on small automation cells. If you need more push force, step up to the SCJ40, which provides 628 N at 0.5 MPa. For applications where the stroke is fixed and never needs field adjustment, the standard SC32 fixed-stroke cylinder is a simpler, lower-cost alternative. This SCJ32X85-40S replaces any AirTAC SCJ32 adjustable-stroke cylinder with an 85 mm nominal stroke, a 40 mm adjust range, PT ports, a basic mount, and a magnet; match the bore, stroke, adjust range, and port thread to guarantee dimensional interchangeability.
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 SCJ32X85-40S FAQ
The push force is 402 N at 0.5 MPa, 563 N at 0.7 MPa, and 724 N at the maximum operating pressure of 0.9 MPa. The pull force on the return stroke is lower (345 N at 0.5 MPa) because the 12 mm rod reduces the effective piston area on the rod side.
Only if you no longer need the adjustable stroke feature. The SCJ32X85-40S has a rear adjusting screw that shortens the stroke end by up to 40 mm; a fixed-stroke SC32 does not offer this field adjustment. For a direct replacement, you must use another SCJ32 with an 85 mm nominal stroke, a 40 mm adjust range, and a magnet.
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