Airtac SCJ32 Standard Cylinder SCJ32X75-30
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X75-30 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, 75mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke75 mm
- Stroke adjust-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X75-30
The SCJ32X75-30 is a double-acting, single-rod pneumatic cylinder that puts precise stroke-end adjustment at your fingertips. With a 30 mm rear-screw range, you can dial in the exact stop position for a 75 mm nominal stroke without swapping the cylinder or adding external hard stops. It delivers 402 N of push force at 0.5 MPa, making it a compact workhorse for light automation tasks.
At the heart of this model is a 32 mm bore with a 12 mm rod and PT1/8 pneumatic ports. The tie-rod construction keeps it serviceable, while the 21 mm air cushion at each end decelerates the piston quietly. The body length is 182 mm, and it handles strokes up to 1000 mm as standard, so this 75 mm unit has plenty of headroom in its design envelope.
Airtac SCJ32 Standard Cylinder SCJ32X75-30 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X75-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 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 SCJ32X75-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SCJ32X75-30 Is Used
Commissioning & Setup
During machine bring-up, the 30 mm adjustment screw lets technicians quickly fine-tune the end-stop position for grippers, pushers, or ejectors without iterative disassembly, slashing setup time.
Wear Compensation
On a packaging line, a diverter gate's stop position can drift as parts wear. The SCJ32X75-30 allows operators to easily re-establish the precise gate position in seconds, extending service intervals.
Format Changeovers
For a small product labeler handling different bottle heights, the adjustable stroke lets a single cylinder stroke be quickly reset to match the new format, eliminating the need for multiple fixed-stroke cylinders.
Is the Airtac SCJ32 Standard Cylinder SCJ32X75-30 the Right Cylinder?
Choose the SCJ32 when your application needs a compact, field-tunable cylinder with up to 724 N of push force at the maximum 0.9 MPa operating pressure. If you need more power, stepping up to the SCJ40 provides 628 N of push at the same 0.5 MPa. For applications where the stroke length is fixed and will never change, the standard SC32 fixed-stroke cylinder is a simpler, more cost-effective alternative. This SCJ32X75-30 is a direct replacement for any AirTAC SCJ32 with a 75 mm nominal stroke, a 30 mm adjustment range, PT1/8 ports, and basic mounting.
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 SCJ32X75-30 FAQ
A screw in the rear cap lets you shorten the stroke end by up to 30 mm. The 75 mm is the maximum nominal stroke. Turning the screw changes where the piston stops on the return, providing field-adjustable positioning without affecting the 402 N push force at 0.5 MPa.
The SCJ32 includes a rear adjusting screw for variable stroke-end positioning, making it ideal for applications needing fine-tuning. The SC32 is a fixed-stroke cylinder. Both share the same 32 mm bore, 12 mm rod, and force characteristics, but the SCJ's body is slightly longer to house the adjustment mechanism.
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