Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB 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, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke200 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB
The SCJ40X200-100 delivers 628 N of push force at 0.5 MPa from its 40 mm bore, with a substantial 100 mm rear-screw adjustment range that lets you fine-tune the stroke end position on the fly. The 16 mm diameter piston rod and 21 mm air cushion work together to handle deceleration smoothly, making it a practical choice for mid-force applications where the exact stopping point needs frequent tweaking.
This model is equipped with a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and the LB foot-mounting brackets (F-SC40LB) provide a stable, surface-mounted installation. The body length A(SCJ) is 185 mm plus stroke, and the PT1/4 port supplies ample flow for speeds up to 800 mm/s.
Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 200 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 SCJ40X200-100SLB
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 SCJ40X200-100SLB Is Used
Multi-Product Packing Stations
Operators adjust the stroke end by up to 100 mm to accommodate different box heights on the same line, eliminating mechanical stop changes and reducing changeover time.
Diverter Gate Positioning
The adjustable stroke allows fine-tuning of a diverter gate’s open position to match varying product widths, ensuring reliable sorting without jams or missed items.
Clamp Force & Wear Compensation
In a clamping fixture, the screw is periodically advanced to take up wear on contact pads, maintaining consistent clamping force without replacing the cylinder or adding shims.
Is the Airtac SCJ40 Standard Cylinder SCJ40X200-100SLB the Right Cylinder?
Choose the SCJ40X200-100 when you need a 40 mm bore’s force class—628 N push at 0.5 MPa—with the ability to dial back the stroke end by up to 100 mm during commissioning or format changes. If your load demands more force, stepping up to the 50 mm bore (SCJ50) provides 982 N push at the same pressure. For applications where the stroke is fixed and never needs field adjustment, the standard SC40X200 fixed-stroke cylinder is a simpler, cost-effective alternative.
As a direct replacement, match the bore (40 mm), nominal stroke (200 mm), and the -100 adjustable range, ensuring the port thread (PT) and LB foot mount are identical. The built-in magnet must also be present on the replacement unit to retain sensor functionality. For strokes of 200 mm, side-loading is generally manageable, but if the rod is subjected to off-axis forces, consider adding an external guide rail to prevent rod bending and premature seal wear.
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 SCJ40X200-100SLB FAQ
At the standard 0.5 MPa operating pressure, this 40 mm bore cylinder generates 628 N on the push stroke and 528 N on the pull stroke (due to the 16 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N.
Yes, if you need the adjustable stroke feature. The SCJ40X200-100 has the same bore, rod size, and port size as the SC40X200, but the body is slightly longer to house the rear adjusting screw. Ensure your mounting arrangement can accommodate the extra length, and match the LB foot mount and magnet sensor option for a drop-in upgrade.
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