Airtac SCJ100 Standard Cylinder SCJ100X275-40S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X275-40S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 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-40 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X275-40S
The SCJ100X275-40S is a 100 mm bore, double-acting single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the retract position by up to 40 mm without swapping the unit. At 0.5 MPa it delivers 3927 N push and 3681 N pull, driven through a 25 mm rod and PT1/2 ports, making it a solid mid-range workhorse for positioning and clamping tasks.
This model includes a built-in magnet (suffix -S), so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for non-contact end-of-stroke sensing. The body length A(SCJ) is 245 mm, and the adjustable air cushion decelerates the piston smoothly at both ends, preserving cycle life in repetitive automation.
Airtac SCJ100 Standard Cylinder SCJ100X275-40S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X275-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 275 mm |
| Stroke adjustment | Up to 40 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 SCJ100X275-40S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ100X275-40S Is Used
Commissioning & Setup
During machine commissioning, the rear adjusting screw lets technicians dial in the exact retract end position on the fly, accommodating stack-up tolerances without machining new stops.
Wear Compensation
In high-cycle clamping or pressing, the 40 mm adjustment range can be used to take up mechanical wear on tooling or gripper pads over time, maintaining consistent clamping force without a PLC change.
Multi-Format Stops
Ideal for conveyor diverters or reject stations handling different product sizes; the stroke can be quickly shortened to match a new box length, reducing changeover downtime.
Is the Airtac SCJ100 Standard Cylinder SCJ100X275-40S the Right Cylinder?
Step up to the 125 mm bore SCJ125 if your fixture needs more than 3927 N push at 0.5 MPa (the 125 bore delivers 6136 N). For a simpler fixed-stroke solution where field adjustment is not required, the standard SC100 cylinder is the direct alternative. This SCJ100X275-40S is a direct dimensional replacement for another AirTAC SCJ100 adjustable-stroke cylinder of the same nominal stroke, 40 mm adjust range, PT ports, basic mounting, and magnet.
At a 275 mm stroke, the rod is well-supported within the guide bush, but if the load applies a side force or the mounting is not perfectly aligned, add an external linear guide or switch to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ100X275-40S FAQ
At the standard 0.5 MPa operating pressure, the cylinder produces 3927 N on the push stroke and 3681 N on the pull stroke. At the maximum operating pressure of 1.0 MPa, the push force reaches 7068 N. The pull force is lower because the 25 mm rod reduces the effective piston area on the return side.
You can replace a fixed-stroke SC100 with this SCJ100X275-40S only if you need the adjustable stroke feature and your machine can accommodate the slightly longer body length. The adjustable screw sets the stroke end within a 40 mm range from the nominal 275 mm. Ensure your mounting, port size (PT1/2), and magnet sensor requirement match this model.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ100 Standard Cylinder SCJ100X275-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.