Airtac SCJ40 Standard Cylinder SCJ40X100-75
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X100-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 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-75 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X100-75
The SCJ40X100-75 is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, giving you up to 75 mm of field-adjustable stroke-end control without replacing the unit. At 0.5 MPa, it delivers 628 N of push force and 528 N on the pull stroke, driven by a 16 mm diameter piston rod through PT1/4 ports.
With a 100 mm nominal stroke and a 185 mm body length, this tie-rod actuator fits where space is tight but stroke precision matters. The adjustable screw lets operators dial in the exact end position during commissioning or changeovers, while the 21 mm air cushion at each end protects the cylinder from impact wear.
Airtac SCJ40 Standard Cylinder SCJ40X100-75 Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X100-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 75 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 SCJ40X100-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ40X100-75 Is Used
Commissioning Fine-Tuning
Adjust the stroke end on a new assembly line to dial in the perfect actuator travel without mechanical rework, saving hours of setup time.
Format Changeovers
Quickly adapt the cylinder stroke for different product sizes on a packaging machine by turning the rear screw instead of swapping out hardware.
Wear Compensation
Take up mechanical play in clamping or pressing fixtures over time, maintaining consistent contact force without reprogramming the machine.
Is the Airtac SCJ40 Standard Cylinder SCJ40X100-75 the Right Cylinder?
Step up to the SCJ50 series if you need a push force of 982 N at 0.5 MPa, or down to the SCJ32 for a more compact 402 N class. If your application requires a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. For direct replacement, match the 40 mm bore, 100 mm nominal stroke, 75 mm adjust range, PT port thread, and basic mounting. For strokes of 100 mm or more, ensure the rod is aligned with the load to prevent side-loading and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ 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 SCJ40X100-75 FAQ
At the standard 0.5 MPa operating pressure, this cylinder generates 628 N of push force and 528 N of pull force. The maximum push force at 0.9 MPa is 1130 N.
A screw in the rear cap limits the piston's retraction, effectively shortening the stroke by up to 75 mm from the 100 mm nominal maximum. It sets the mechanical end position and does not regulate air pressure or speed.
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 SCJ40 Standard Cylinder SCJ40X100-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.