Airtac SCJ40 Standard Cylinder SCJ40X200-75
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X200-75 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, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke200 mm
- Stroke adjust-75 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X200-75
The SCJ40X200-75 is a double-acting, single-rod pneumatic cylinder with a 40 mm bore and a nominal 200 mm stroke, equipped with a rear-cap adjusting screw that provides up to 75 mm of field-adjustable stroke reduction. This allows machine builders to fine-tune the end position without changing the cylinder, making it ideal for commissioning, format changeovers, or compensating for tooling wear. At 0.5 MPa, it delivers 628 N of push force and 528 N on the pull stroke, with a 16 mm diameter piston rod and PT1/4 ports.
With a body length A of 185 mm, this SCJ model is slightly longer than a fixed-stroke SC of the same bore due to the integrated adjustment mechanism. The adjustable cushion decelerates the piston smoothly at stroke end, and the tie-rod construction ensures reliable service in general industrial automation. This genuine AirTAC cylinder is built for consistent performance across a wide range of positioning tasks.
Airtac SCJ40 Standard Cylinder SCJ40X200-75 Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X200-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 200 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 SCJ40X200-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SCJ40X200-75 Is Used
Commissioning & Setup
The 75 mm adjustment range lets technicians dial in the exact stroke end position during initial machine setup without swapping cylinders or fabricating custom mechanical stops.
Product Changeover
Quickly adapt the stroke for different product sizes on packaging or assembly lines. The rear screw makes format changes fast and repeatable, reducing downtime between batches.
Wear Compensation
As tooling or gripper pads wear over time, the adjustable stroke can be extended slightly to maintain precise contact and consistent part engagement without replacing the actuator.
Is the Airtac SCJ40 Standard Cylinder SCJ40X200-75 the Right Cylinder?
Select the SCJ40X200-75 when your application requires a 40 mm bore cylinder with a stroke that can be precisely shortened by up to 75 mm on the machine. If you need more push force, stepping up to a 50 mm bore provides 982 N at 0.5 MPa, while a 32 mm bore offers a more compact option at 402 N. For applications where the stroke length is fixed and never needs adjustment, the standard SC series is a simpler, more cost-effective alternative.
This model is a direct replacement for another AirTAC SCJ40X200-75 with PT ports and basic mounting. For a 200 mm nominal stroke, ensure the rod is adequately supported if significant side loads are present; an external guide rail or a guided cylinder should be used to prevent rod bending 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 SCJ40X200-75 FAQ
At 0.5 MPa operating pressure, the cylinder produces 628 N of push force and 528 N of pull force. The maximum push force at 0.9 MPa is 1130 N. The push force is higher than the pull force because the piston rod reduces the effective area on the return stroke.
A screw in the rear cap limits how far the piston can retract, effectively shortening the stroke end by up to 75 mm. It does not adjust the cylinder's force or speed. The nominal 200 mm stroke is the maximum achievable; the screw only reduces it from that maximum.
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 SCJ40X200-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.