Airtac SCJ32 Standard Cylinder SCJ32X35-20S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X35-20S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø32mm bore, 35mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke35 mm
- Stroke adjust-20 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X35-20S
The SCJ32X35-20S is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that lets you fine-tune the stroke end by up to 20 mm without swapping the cylinder. With a 12 mm diameter rod and PT1/8 ports, it delivers 402 N of push force at 0.5 MPa, making it a compact workhorse for light automation tasks where commissioning adjustments or format changes are frequent.
This model includes a built-in magnet, so standard CMSG, DMSG, or EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The body length A(SCJ) is 182 mm, and the adjustable air cushion helps decelerate the piston smoothly within the 21 mm cushion zone, reducing noise and impact at the end of travel.
Airtac SCJ32 Standard Cylinder SCJ32X35-20S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X35-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 35 mm |
| Stroke adjustment | Up to 20 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 SCJ32X35-20S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×35 | Nominal (maximum) stroke length in mm. |
| -20 | 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 SCJ32X35-20S Is Used
Commissioning & Setup
Dial in the exact stopping position during machine commissioning by turning the rear adjusting screw, eliminating the need to shim or reposition the cylinder body.
Small-Part Ejectors
Fine-tune the ejector stroke on a packaging line to accommodate different product heights without changing the cylinder, using the 20 mm adjustment range.
Wear Take-Up
Compensate for mechanical wear in linkages or tooling over time by slightly extending the effective stroke, maintaining consistent operation without a cylinder swap.
Is the Airtac SCJ32 Standard Cylinder SCJ32X35-20S the Right Cylinder?
Choose the SCJ32X35-20S when you need a 35 mm nominal stroke that can be shortened by up to 20 mm in the field—ideal for dialling in precise end positions during machine setup. If your force requirement grows, stepping up to the 40 mm bore SCJ40 series provides 628 N of push at the same 0.5 MPa pressure, while still offering the same adjustable-stroke convenience.
For a direct replacement, match an AirTAC SCJ32 adjustable-stroke cylinder with a 35 mm nominal stroke, 20 mm adjust range, PT ports, and the -S magnet option. If your application demands a fixed, non-adjustable stroke, the standard SC32 series is a simpler alternative; if you need guidance against side loads, consider an external guide rail or a guided cylinder instead.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-20)
- ✓ 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 SCJ32X35-20S FAQ
A rear-cap adjusting screw limits the retract stroke end position. You can shorten the nominal 35 mm stroke by up to 20 mm in the field. It sets the mechanical stop point—it does not adjust force, speed, or cushioning.
At 0.5 MPa, the push force is 402 N and the pull force is 345 N (due to the 12 mm rod area). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 804 N.
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