Airtac SCJ32 Standard Cylinder SCJ32X170-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X170-50 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, 170mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke170 mm
- Stroke adjust-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X170-50
The SCJ32X170-50 is a double-acting, single-rod pneumatic cylinder with a 32 mm bore and a nominal stroke of 170 mm. Its defining feature is a rear-cap adjusting screw that provides a 50 mm field-adjustable range, letting you fine-tune the stroke end position without removing the cylinder. This model delivers 402 N of push force and 345 N of pull force at 0.5 MPa, using a 12 mm diameter piston rod.
This tie-rod cylinder uses PT1/8 ports and an M10x1.25 rod thread, with a 21 mm air cushion for smooth deceleration. The SCJ body is slightly longer than a fixed-stroke SC of the same bore to accommodate the adjusting mechanism, with a base body length A of 182 mm. It operates on filtered air from 0.15 to 1.0 MPa and is a practical choice for commissioning and format changeovers on compact machinery.
Airtac SCJ32 Standard Cylinder SCJ32X170-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X170-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 170 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 SCJ32X170-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×170 | 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 SCJ32X170-50 Is Used
Commissioning & Setup
The 50 mm adjust range allows technicians to quickly fine-tune the end-stop position during initial machine commissioning without swapping out hard stops or cylinder bodies.
Small-Part Sorting
Adjust the stroke end to accommodate different product sizes on a sorting gate or diverter. The 170 mm nominal stroke handles a wide range of part widths.
Wear Compensation
In clamping or pressing fixtures, the screw can be advanced over time to compensate for pad wear or tooling changes, maintaining consistent contact force.
Is the Airtac SCJ32 Standard Cylinder SCJ32X170-50 the Right Cylinder?
Choose the SCJ32X170-50 when you need to dial in a precise stroke end on a 32 mm bore platform, especially during machine setup or for processes with variable tooling. If the 402 N push force at 0.5 MPa is insufficient, stepping up to a 40 mm bore (628 N push) provides more power. For applications that do not require stroke adjustment, a simpler fixed-stroke SC32X170 cylinder is a direct alternative. A genuine replacement must match the 32 mm bore, 170 mm nominal stroke, 50 mm adjust range, PT port thread, and basic mounting style.
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 SCJ32X170-50 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 804 N. The pull force is lower because the 12 mm rod reduces the effective piston area on the return stroke.
Yes, if your existing cylinder has a 32 mm bore, a 170 mm nominal stroke, and a 50 mm adjust range. Ensure the port thread (PT), mounting style (basic), and magnet option (none) match. This is a genuine AirTAC SCJ adjustable-stroke cylinder, not an ISO 15552 interchangeable type.
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