Airtac SCJ80 Standard Cylinder SCJ80X100-50S
The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-50S 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. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Nominal stroke100 mm
- Stroke adjust-50 mm
- Port sizePT3/8
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SCJ80 Standard Cylinder SCJ80X100-50S
The SCJ80X100-50S is a double-acting, single-rod pneumatic cylinder that puts stroke-end tuning directly on the machine. A rear-cap adjusting screw provides a 50 mm range to shorten the nominal 100 mm stroke, letting you dial in the exact stop position without swapping cylinders or adding external hard stops. The built-in magnet allows CMSG/DMSG/EMSG sensors to clamp onto the tie-rod barrel for non-contact end-of-stroke sensing.
With an 80 mm bore and 25 mm piston rod, this cylinder delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa. At the maximum operating pressure of 0.9 MPa, push thrust reaches 4523 N. The adjustable air cushion is 28 mm long, and the PT3/8 ports keep flow rates high for speeds of 30-800 mm/s. Body length A(SCJ) is 239 mm, making it a compact choice for applications where stroke refinement is needed during commissioning or format changes.
Airtac SCJ80 Standard Cylinder SCJ80X100-50S Technical Specifications
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCJ80 Standard Cylinder SCJ80X100-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SCJ80 Standard Cylinder SCJ80X100-50S Is Used
Multi-Format Packaging
Adjust the push stroke end by up to 50 mm to accommodate different box or carton sizes on a packaging line without stopping production for a cylinder swap.
Clamping & Fixturing
Fine-tune the clamp stroke end to compensate for part tolerance variations or tooling wear, ensuring consistent clamping force without over-travel.
Commissioning & Setup
Dial in the exact actuator stroke during machine commissioning. The 50 mm adjustment range allows engineers to quickly find the optimal end position for a new process.
Is the Airtac SCJ80 Standard Cylinder SCJ80X100-50S the Right Cylinder?
Choose the SCJ80X100-50S when you need to fine-tune the stroke end position by up to 50 mm without changing the cylinder. If your force requirement is lower, stepping down to a 63 mm bore reduces push force to 1559 N at 0.5 MPa; for higher force, the 100 mm bore provides 3927 N. This adjustable-stroke model is ideal for commissioning trials and multi-product lines, but if your stroke is permanently fixed, a standard SC80X100 cylinder is a simpler, cost-effective alternative. For direct replacement, match the 80 mm bore, 100 mm nominal stroke, 50 mm adjust range, PT3/8 ports, basic mounting, and the -S magnet option. For strokes of 100 mm or more, ensure the rod is guided externally if significant side loads are present, or consider a guided cylinder to prevent rod bending and seal 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 SCJ80 Standard Cylinder SCJ80X100-50S FAQ
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N (pull is lower due to the 25 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force increases to 4523 N. The theoretical force at 1.0 MPa is 513 kgf.
A rear-cap screw lets you shorten the stroke end by up to 50 mm from the nominal 100 mm maximum. Choose the SCJ when you need to fine-tune the stop position on the machine for different setups, wear take-up, or commissioning. If your application uses a single, fixed stroke that never changes, the standard SC series is a more economical choice.
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