Airtac SCJ100 Standard Cylinder SCJ100X90-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X90-30S 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. Ø100mm bore, 90mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke90 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X90-30S
The AirTAC SCJ100X90-30S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, offering 3927 N of push force at 0.5 MPa (7068 N at the maximum 0.9 MPa operating pressure). The rear-cap adjusting screw provides up to 30 mm of stroke-end reduction, letting you fine-tune the piston stop position without removing the cylinder from the machine. This model features a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors.
With a 25 mm diameter piston rod, PT1/2 port threads, and a 29 mm air cushion, the SCJ100X90-30S is built for reliable deceleration and consistent cycling. The 245 mm body length (A dimension) houses the tie-rod construction, and the standard PT ports ensure straightforward plumbing. This cylinder is ideal for applications where the stroke length must be dialed in during commissioning or adjusted for different product formats.
Airtac SCJ100 Standard Cylinder SCJ100X90-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X90-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 90 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X90-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×90 | 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 SCJ100 Standard Cylinder SCJ100X90-30S Is Used
Commissioning & Setup
The 30 mm adjustment screw allows engineers to precisely set the stroke end during machine commissioning, eliminating the need to fabricate external hard stops for a 100 mm bore actuator.
Format Changeover
On packaging lines, the stroke can be quickly re-adjusted for different box or pallet sizes without swapping the cylinder, minimizing downtime during product changeovers.
Wear Compensation
In clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear in tooling, maintaining consistent clamp force and position over time.
Is the Airtac SCJ100 Standard Cylinder SCJ100X90-30S the Right Cylinder?
Select the SCJ100X90-30S when you need substantial force in the 100 mm bore class and the ability to trim the stroke end by up to 30 mm. If your force requirement is lower, stepping down to an SCJ80 bore reduces push force to 2513 N at 0.5 MPa, saving space and air consumption. For higher force, the SCJ125 bore provides 6136 N of push at the same pressure. A fixed-stroke SC100 cylinder is a simpler, more cost-effective choice if the stroke length will never need field adjustment.
For replacement, match this model with another AirTAC SCJ100 cylinder having a 90 mm nominal stroke, a 30 mm adjustment range, PT ports, and the -S magnet option. Since the nominal stroke is under 300 mm, side-loading and rod buckling are less of a concern, but always ensure the load is guided and aligned with the rod axis to maximize seal and bearing life.
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 SCJ100 Standard Cylinder SCJ100X90-30S FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 7068 N. Because it is a single-rod cylinder, the push force is greater than the pull force due to the area of the 25 mm rod.
A rear-cap screw lets you shorten the stroke end by up to 30 mm from the 90 mm nominal maximum. Choose the SCJ when you need to fine-tune the piston stop position on the machine, such as for setup, format changes, or wear take-up. Choose a fixed-stroke SC cylinder if your application has a single, unchanging stroke length, as it is a more economical option.
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