Airtac SCJ100 Standard Cylinder SCJ100X350-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-30S 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, 350mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke350 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-30S
The SCJ100X350-30S is a double-acting, single-rod pneumatic cylinder that puts 3927 N of push force at your command at 0.5 MPa, rising to a substantial 7068 N at 0.9 MPa. Its defining feature is the rear-cap adjusting screw, which provides up to 30 mm of field-adjustable stroke-end reduction, letting you fine-tune the stopping position without swapping the cylinder or adding external hard stops.
This model integrates a built-in magnet, so you can directly clamp CMSG/DMSG/EMSG sensors onto the tie-rod barrel for reliable, non-contact position sensing. With a 25 mm rod, PT1/2 ports, and a 29 mm air cushion, it's built for demanding applications. The body length is 245 mm, and it handles strokes up to 1500 mm as standard.
Airtac SCJ100 Standard Cylinder SCJ100X350-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 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 SCJ100X350-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SCJ100X350-30S Is Used
Multi-Product Assembly Lines
Quickly adjust the stroke end for different product sizes on the same fixture, eliminating the need for mechanical stop changes and reducing format changeover time.
Press-Fit Depth Control
Fine-tune the final press depth of a bearing or bushing by adjusting the screw, compensating for part tolerance stack-ups without reprogramming a servo axis.
Wear Take-Up on Stops
Compensate for wear on a workpiece stop or clamp face over thousands of cycles. A simple turn of the screw restores the original precise stopping position.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-30S the Right Cylinder?
Choose the SCJ100X350-30S when you need to dial in a precise end position during commissioning or changeovers. If your force requirement is lower, stepping down to an 80 mm bore reduces push force to 2513 N at 0.5 MPa. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. For direct replacement, match a genuine AirTAC SCJ cylinder with a 100 mm bore, 350 mm nominal stroke, a 30 mm adjust range, PT ports, and a magnet. At this 350 mm stroke, be mindful of side loads; if the rod is not guided externally, consider adding a guide unit to prevent bending and premature seal wear.
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 SCJ100X350-30S FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force on the retract stroke is slightly lower at 3681 N (0.5 MPa) because the 25 mm piston rod reduces the effective piston area on that side.
A screw in the rear cap limits how far the piston can extend, shortening the stroke by up to 30 mm from the 350 mm nominal maximum. It only sets the stroke end position; it is not a lock. The piston will drift if air pressure is lost, so an external rod brake or pilot-operated check valve is required for load holding.
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