Airtac SCJ100 Standard Cylinder SCJ100X80-50S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X80-50S 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. Ø100mm bore, 80mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke80 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X80-50S
The SCJ100X80-50S delivers substantial force in a field-adjustable package, generating 3927 N of push force and 3681 N of pull force at 0.5 MPa. The rear-mounted adjusting screw provides up to 50 mm of stroke-end reduction, allowing machine builders to fine-tune the stopping position without swapping the cylinder or adding external hard stops. This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors.
With a 25 mm rod and PT1/2 ports, this tie-rod cylinder handles demanding pneumatic tasks. The body length A is 245 mm, and the 29 mm air cushion at each end decelerates the piston smoothly. At the maximum operating pressure of 0.9 MPa, the push force reaches 7068 N, making it suitable for heavy pressing, clamping, or positioning applications where the stroke must be dialed in precisely during commissioning.
Airtac SCJ100 Standard Cylinder SCJ100X80-50S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X80-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X80-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SCJ100 Standard Cylinder SCJ100X80-50S Is Used
Commissioning Fine-Tuning
Dial in the exact end-of-stroke position during initial machine setup without changing cylinders or machining custom stops.
Format Changeovers
Quickly adjust the stroke for different product sizes on packaging or material handling lines, reducing downtime between batches.
Wear Compensation
Take up mechanical play or tooling wear over time by simply turning the rear screw, maintaining consistent clamping or pressing force.
Is the Airtac SCJ100 Standard Cylinder SCJ100X80-50S the Right Cylinder?
Choose the SCJ100X80-50S when you need a 100 mm bore cylinder with an adjustable stroke end. If your force requirement is lower, the 80 mm bore SCJ series offers 2513 N of push force at 0.5 MPa; for higher force, the 125 mm bore delivers 6136 N. If you do not require field adjustability, a fixed-stroke SC100X80 will be a simpler, slightly shorter alternative. For a direct replacement, match the 100 mm bore, 80 mm nominal stroke, 50 mm adjust range, PT port thread, and the integrated magnet option. This model uses the basic mounting style; foot (LB) or trunnion (TC) mounts can be added if needed.
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 SCJ100 Standard Cylinder SCJ100X80-50S FAQ
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 801 kgf.
A rear adjusting screw shortens the stroke end by up to 50 mm. It is a direct dimensional replacement for an SC100X80 if you match the bore, nominal stroke, port thread (PT), and add the magnet option.
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