Airtac SCJ40 Standard Cylinder SCJ40X100-100S
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X100-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø40mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke100 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X100-100S
The SCJ40X100-100S is a double-acting, single-rod pneumatic cylinder with a 40 mm bore and a nominal 100 mm stroke, featuring a rear-cap adjusting screw that provides a full 100 mm of field-adjustable stroke reduction. This allows the effective stroke end to be set anywhere between 0 and 100 mm without changing the cylinder, making it ideal for commissioning trials and format changeovers. The built-in magnet (S) allows direct mounting of CMSG/DMSG/EMSG sensors for precise end-of-stroke detection.
At 0.5 MPa operating pressure, this cylinder delivers 628 N of push force and 528 N of pull force, with a maximum push force of 1130 N at 0.9 MPa. The 16 mm diameter piston rod and PT1/4 port ensure robust, responsive actuation. The tie-rod construction houses a 21 mm air cushion, and the SCJ body length for this bore is 185 mm, providing a compact profile for space-constrained applications.
Airtac SCJ40 Standard Cylinder SCJ40X100-100S Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X100-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCJ40 Standard Cylinder SCJ40X100-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ40 Standard Cylinder SCJ40X100-100S Is Used
Commissioning & Setup
The 100 mm adjustment range lets technicians dial in the perfect stroke end-stop during initial machine setup without swapping out cylinders or machining external hard stops.
Product Changeover
Quickly adapt a pusher or stopper station for different product sizes on a packaging line by adjusting the rear screw, minimizing downtime between production runs.
Wear Compensation
In clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear in tooling over time, maintaining consistent contact force without reprogramming.
Is the Airtac SCJ40 Standard Cylinder SCJ40X100-100S the Right Cylinder?
Choose the SCJ40X100-100S when you need to fine-tune the end position of a 100 mm stroke on the fly. If your force requirements increase, stepping up to a 50 mm bore SCJ provides 982 N of push force at 0.5 MPa. For applications where the stroke is fixed and never needs adjustment, the standard SC40X100 fixed-stroke cylinder is a more economical alternative. If the load applies a significant side force, especially at this stroke length, consider an external guide rail or a guided cylinder to protect the rod bearing.
This model is a direct replacement for an existing AirTAC SCJ40X100-100S with a PT port, basic mounting, and a magnet. For a replacement with a different mounting style, select the appropriate SCJ40X100-100S with an FA, LB, or TC mounting suffix, using the corresponding F-SC40 mounting kit.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ40 Standard Cylinder SCJ40X100-100S FAQ
At the standard 0.5 MPa operating pressure, the push force is 628 N and the pull force is 528 N. The maximum push force at the 0.9 MPa upper limit is 1130 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
A rear-cap screw physically limits the piston's out-stroke, shortening the nominal 100 mm stroke by up to 100 mm. You can replace a fixed-stroke SC40 with this SCJ if you need field adjustability, but the SCJ body is slightly longer. The mounting, port, and magnet options must match your existing setup.
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