Airtac SCJ100 Standard Cylinder SCJ100X275-30S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X275-30S 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, 275mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke275 mm
- Stroke adjust-30 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X275-30S
The SCJ100X275-30S delivers a substantial 3927 N of push force at 0.5 MPa, making it a workhorse for medium-to-heavy linear applications where the end position needs fine-tuning. Its 30 mm rear-screw adjustment range lets you dial in the exact stroke end on the machine without swapping the cylinder, which is particularly useful during commissioning or format changes.
This model includes a built-in magnet, so CMSG/DMSG/EMSG solid-state or reed sensors clamp directly onto the tie-rod barrel for non-contact position feedback. The 25 mm diameter piston rod and PT1/2 ports handle high flow, while the 29 mm air cushion at each end decelerates the 275 mm stroke smoothly.
Airtac SCJ100 Standard Cylinder SCJ100X275-30S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X275-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 275 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 SCJ100X275-30S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SCJ100X275-30S Is Used
Format Changeovers
Quickly adjust the stroke end stop for different product sizes on packaging or assembly machines, reducing downtime between batches.
Commissioning Trials
Fine-tune the actuator's end position during initial machine setup to perfectly align with tooling or stops without mechanical rework.
Wear Compensation
Take up mechanical play or wear in linkages over time by advancing the stroke end screw, maintaining precise positioning.
Is the Airtac SCJ100 Standard Cylinder SCJ100X275-30S the Right Cylinder?
Choose this 100 mm bore when the 80 mm bore's 2513 N push force at 0.5 MPa is insufficient for your load. If you need a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. For guided loads, pair this with an external guide or a guided cylinder to manage side forces. As a direct replacement, match the 100 mm bore, 275 mm nominal stroke, 30 mm adjust range, PT port thread, basic mount, and the -S magnet option.
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 SCJ100X275-30S FAQ
At 0.5 MPa (5 bar), it delivers 3927 N of push force and 3681 N of pull force. The push force is higher because the single piston rod reduces the effective area on the return stroke.
A screw in the rear cap lets you shorten the stroke end by up to 30 mm. It sets a mechanical stop for the piston, so the 275 mm nominal stroke is the maximum; you can field-adjust it down to 245 mm.
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Related AirTAC SCJ Adjustable-Stroke Cylinders
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