Airtac SCJ50 Standard Cylinder SCJ50X150-100S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X150-100S 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, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke150 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X150-100S
The AirTAC SCJ50X150-100S is a double-acting, single-rod tie-rod cylinder featuring a rear-cap adjusting screw that provides up to 100 mm of field-adjustable stroke reduction. With a 50 mm bore, it delivers 1767 N of push force at 0.9 MPa, making it a robust solution for applications requiring fine end-position tuning without replacing the cylinder.
This model includes a built-in magnet (suffix -S), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the barrel for precise position feedback. The 20 mm piston rod and PT1/4 ports ensure solid mechanical and pneumatic connection, while the adjustable air cushion decelerates the piston smoothly at the stroke end.
Airtac SCJ50 Standard Cylinder SCJ50X150-100S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X150-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 150 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 SCJ50X150-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SCJ50X150-100S Is Used
Commissioning & Setup
Ideal for machine builders who need to fine-tune the actuator's end position on-site. The 100 mm adjustment range allows for rapid, tool-free optimization during initial system bring-up.
Format Changeovers
Perfect for packaging or assembly lines running multiple product sizes. Operators can quickly adjust the stroke end to match a new format without mechanical disassembly or swapping out the cylinder.
Wear Compensation
In clamping or pressing operations, the adjustable stroke can take up mechanical wear in tooling or workpieces over time, maintaining consistent contact force and cycle quality.
Is the Airtac SCJ50 Standard Cylinder SCJ50X150-100S the Right Cylinder?
Choose the SCJ50X150-100S when you need to dial in a precise end stop on a 150 mm nominal stroke, with the flexibility to shorten it by up to 100 mm. If the 982 N push force at 0.5 MPa is insufficient, stepping up to a 63 mm bore (SCJ63) provides 1559 N of push force. For applications where the stroke length is permanently fixed, the standard SC series is a simpler, more cost-effective alternative.
This cylinder is a direct replacement for an existing AirTAC SCJ50X150-100S with a magnet, PT ports, and basic mounting. For strokes of 300 mm or more, consider an external guide rail to prevent rod bending under side loads, or switch to a guided cylinder assembly for integrated support.
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 SCJ50X150-100S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The maximum push force at the 0.9 MPa operating limit is 1767 N. The pull force is lower because the 20 mm rod reduces the effective piston area on the return stroke.
A rear-cap screw sets the physical end stop for the piston, shortening the nominal 150 mm stroke by up to 100 mm. This is a mechanical end-position adjustment, not a mid-stroke lock. The cylinder will not hold a load if air pressure is lost; an external rod brake or pilot-operated check valve is required for load holding.
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