Airtac SCJ50 Standard Cylinder SCJ50X80-100
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X80-100 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. Ø50mm bore, 80mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke80 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X80-100
The SCJ50X80-100 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. A rear-cap adjusting screw lets you shorten the effective stroke by up to 100 mm without removing the cylinder, making it ideal for commissioning trials or format changeovers where the exact stop position must be dialled in on the machine. The 50 mm bore delivers 982 N of push force at 0.5 MPa, and the 20 mm piston rod provides solid rigidity for linear pushing and positioning tasks.
Built on the proven SC tie-rod platform, this cylinder uses a PT1/4 port, M16x1.5 rod thread, and a 21 mm air cushion to decelerate the piston quietly at end of travel. The body length A(SCJ) is 194 mm, slightly longer than the fixed-stroke SC to house the adjusting mechanism. It operates on 40 µm filtered air from 0.15 to 1.0 MPa and handles ambient temperatures from -20 to +70 °C with the standard TPU seal.
Airtac SCJ50 Standard Cylinder SCJ50X80-100 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X80-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCJ50 Standard Cylinder SCJ50X80-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×80 | 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 SCJ50 Standard Cylinder SCJ50X80-100 Is Used
Commissioning & Setup
Dial in the exact retract stop during machine bring-up. The 100 mm adjustment range lets technicians fine-tune the end position without swapping cylinders or fabricating external hard stops.
Wear Compensation
In clamping or pressing fixtures, use the rear screw to take up mechanical wear on tooling or workpieces over time, maintaining consistent contact pressure without reprogramming the machine.
Product Changeover
Quickly adapt a stop or pusher stroke for different product sizes on a packaging or assembly line. The screw adjustment allows operators to change the stroke end in seconds.
Is the Airtac SCJ50 Standard Cylinder SCJ50X80-100 the Right Cylinder?
Choose the SCJ50X80-100 when you need to fine-tune the retract stop position across a 100 mm window. If your application requires a higher push force, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa; if space is tight, the 40 mm bore delivers 628 N. For a fixed, non-adjustable stroke, the standard SC50X80 is a simpler, lower-cost alternative. This cylinder is a direct dimensional replacement only for another AirTAC SCJ50 with an 80 mm nominal stroke, 100 mm adjust range, PT1/4 ports, and the same basic mounting configuration.
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 SCJ50 Standard Cylinder SCJ50X80-100 FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. Because this is a single-rod cylinder, the push force is always greater than the pull force due to the rod area on the piston.
Yes, this is a genuine AirTAC SCJ50X80-100, dimensionally identical to the original. It matches the 50 mm bore, 80 mm nominal stroke, 100 mm adjustment range, PT1/4 ports, and basic mounting. Ensure your existing mounting and rod-end attachment are compatible with the M16x1.5 rod thread.
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