Airtac SCJ32 Standard Cylinder SCJ32X185-30S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X185-30S 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, 185mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke185 mm
- Stroke adjust-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X185-30S
The SCJ32X185-30S is a 32mm bore double-acting single-rod cylinder with a rear adjusting screw that provides up to 30mm of field-adjustable stroke reduction. This lets you fine-tune the stroke end position precisely for commissioning or format changes without swapping the cylinder. At 0.5 MPa, it delivers 402 N of push force and 345 N on the pull stroke, with a 12mm piston rod and PT1/8 ports.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for reliable end-of-stroke detection. The cylinder body length A(SCJ) is 182 mm, and the adjustable air cushion decelerates the piston smoothly over the final 21 mm of travel. It operates on 40 µm filtered air from 0.15 to 1.0 MPa, with a standard speed range of 30-800 mm/s.
Airtac SCJ32 Standard Cylinder SCJ32X185-30S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X185-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 185 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 SCJ32X185-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×185 | 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 SCJ32X185-30S Is Used
Commissioning & Setup
The 30mm adjusting screw allows technicians to dial in the exact stroke end position during machine commissioning, eliminating the need for external hard stops and reducing setup time.
Small-Part Ejector
Used on assembly fixtures to eject small components, the adjustable stroke lets you fine-tune the ejector's travel to prevent part damage when switching between delicate or varied workpiece heights.
Wear Compensation
In clamping or pressing operations, the rear screw can be easily adjusted to take up mechanical wear on tooling or contact surfaces, maintaining consistent clamping force and cycle timing without replacing the cylinder.
Is the Airtac SCJ32 Standard Cylinder SCJ32X185-30S the Right Cylinder?
Choose this 32mm bore when your application needs a compact, adjustable-stroke actuator with up to 402 N of push force at 0.5 MPa. If you require more force, step up to the 40mm bore, which provides 628 N of push at the same pressure. For applications needing a fixed, non-adjustable stroke, the standard SC32 series offers a simpler, slightly shorter body. This SCJ32X185-30S is a direct replacement for any AirTAC SCJ32 cylinder with a 185mm nominal stroke, a 30mm adjust range, PT ports, basic mounting, and a built-in magnet.
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 SCJ32X185-30S FAQ
A screw in the rear cap mechanically limits the piston's retraction stroke end. Turning the screw lets you shorten the effective stroke by up to 30mm from the nominal 185mm maximum. It adjusts the end position only and does not change the cylinder's force or speed.
Yes. The -S suffix in SCJ32X185-30S indicates a built-in magnet on the piston. This allows you to clamp compatible AirTAC reed (CMSG) or solid-state (DMSG/EMSG) sensors directly onto the cylinder's tie-rod barrel for contactless position sensing.
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