Airtac SCJ32 Standard Cylinder SCJ32X300-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X300-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø32mm bore, 300mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke300 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X300-50
The SCJ32X300-50 is a double-acting, single-rod pneumatic cylinder that puts a 50 mm field-adjustable stroke range at your fingertips. With a 12 mm piston rod and a push force of 402 N at 0.5 MPa (724 N at 0.9 MPa), it delivers precise end-position tuning for compact automation tasks without swapping the cylinder.
The rear-cap adjusting screw lets you shorten the stroke end by up to 50 mm from the 300 mm nominal maximum, making commissioning and format changeovers far quicker. Its tie-rod construction keeps the 182 mm body length consistent, and the 21 mm air cushion decelerates the piston smoothly at both ends.
Airtac SCJ32 Standard Cylinder SCJ32X300-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X300-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 300 mm |
| Stroke adjustment | Up to 50 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 SCJ32X300-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×300 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ32X300-50 Is Used
Commissioning & Setup
Dial in the exact stroke end position during machine build without cutting brackets or adding hard stops. The 50 mm adjustment range covers most trial-and-error positioning needs.
Small-Part Diverter Gates
Fine-tune the gate opening on a packaging line to handle different product widths. Adjust the stroke end in seconds when changing between box sizes.
Wear Take-Up on Clamps
Compensate for jaw or pad wear in a clamping fixture over thousands of cycles. The screw lets you restore the original clamp position without replacing the cylinder.
Is the Airtac SCJ32 Standard Cylinder SCJ32X300-50 the Right Cylinder?
Step up to the 40 mm bore SCJ if your load exceeds the 32 mm bore's 402 N push at 0.5 MPa—the 40 mm bore provides 628 N. If your application never needs stroke adjustment, the fixed-stroke SC32X300 is a simpler, cost-effective alternative. For a direct replacement, match an SCJ32X300-50 with PT1/8 ports, basic mounting, and no magnet. At this 300 mm stroke, ensure the rod is guided externally or consider a guided cylinder if the load applies any side force, to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ32X300-50 FAQ
At 0.5 MPa, push force is 402 N and pull force is 345 N. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. The pull force is lower because the rod occupies part of the piston area on the return stroke.
Yes, if you need the ability to shorten the stroke end by up to 50 mm. The SCJ32X300-50 shares the same bore, rod diameter, and port size as the SC32X300, but the body is slightly longer to house the adjusting screw. Ensure your mounting arrangement has clearance for the rear adjustment mechanism.
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