Airtac SCJ40 Standard Cylinder SCJ40X200-50
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X200-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 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-50 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X200-50
The SCJ40X200-50 is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly on the machine. Its rear-cap adjusting screw provides a 50 mm adjustable range, letting you dial in the exact stop position for a 200 mm nominal stroke without swapping cylinders or adding external hard stops.
This 40 mm bore cylinder delivers 628 N of push force and 528 N of pull force at 0.5 MPa, drawing air through PT1/4 ports. The 16 mm diameter piston rod and 21 mm air cushion work together for reliable deceleration, while the tie-rod construction keeps the 185 mm body length serviceable and robust in general automation tasks.
Airtac SCJ40 Standard Cylinder SCJ40X200-50 Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X200-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 50 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 SCJ40X200-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ40X200-50 Is Used
Commissioning & Setup
Fine-tune the end position during machine bring-up. The 50 mm screw adjustment lets technicians dial in the exact stop point for a pick-and-place arm without iterative cylinder changes.
Format Changeover
Quickly adapt a pusher or diverter stroke for a new product size on a packaging line. Operators adjust the rear screw to match the new box width, minimizing downtime between batches.
Wear Compensation
Take up mechanical play in a clamping or pressing fixture over time. As tooling wears, the stroke end can be extended slightly via the adjusting screw to maintain consistent clamp force and position.
Is the Airtac SCJ40 Standard Cylinder SCJ40X200-50 the Right Cylinder?
Step up to the SCJ50 bore (982 N push at 0.5 MPa) if this 40 mm cylinder's 628 N push force is marginal for your load. For applications that never need stroke adjustment, the fixed-stroke SC40X200 is a simpler, cost-effective alternative. This SCJ40X200-50 is a direct dimensional replacement only for another AirTAC SCJ40X200-50 with matching PT ports and basic mounting.
At a 200 mm stroke, rod deflection under side load is a real concern. If the load is not guided externally, add a guide rail or consider a guided cylinder to protect the rod bearing and seal from premature wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ40X200-50 FAQ
At 0.5 MPa, it generates 628 N pushing force and 528 N pulling force. The push force is higher because the single rod reduces the effective piston area on the return side. Maximum push force at 0.9 MPa is 1130 N.
Only if you specifically need the adjustable stroke feature. The SCJ body is slightly longer to house the adjusting screw. It is a direct replacement for another AirTAC SCJ40X200-50 with the same bore, stroke, 50 mm adjust range, and PT port thread.
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 SCJ40X200-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.