Airtac SCJ50 Standard Cylinder SCJ50X100-30SH
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-30SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø50mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke100 mm
- Stroke adjust-30 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X100-30SH
The SCJ50X100-30SH is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, delivering 982 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides up to 30 mm of stroke-end retraction, allowing operators to fine-tune the piston's stopping position without removing the cylinder or adding external hard stops. This model features a 20 mm diameter piston rod and an integrated magnet for sensor compatibility.
Built for high-temperature environments, the 'H' suffix specifies Viton (FKM) seals, extending the operating range from 0 to +150 °C. The PT1/4 port and M16x1.5 rod thread are standard. With a body length of 194 mm and a 21 mm air cushion, this tie-rod cylinder is a robust solution for applications requiring precise, repeatable end-position adjustment under hot conditions.
Airtac SCJ50 Standard Cylinder SCJ50X100-30SH Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-30SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 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 SCJ50X100-30SH
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ50X100-30SH Is Used
Hot-End Conveyor Stops
In ovens or drying lines, the 30 mm adjustment range allows operators to dial in the exact stop position for different product sizes, while the Viton seals withstand continuous high temperatures up to 150 °C.
Foundry Pattern Ejection
The adjustable stroke enables precise depth control for ejector pins in hot molding processes. The built-in magnet allows for end-of-stroke sensing with CMSG/DMSG sensors to confirm full retraction.
Thermoforming Trim Presses
Fine-tune the cutting stroke by up to 30 mm to compensate for tooling wear or material thickness changes without stopping production, leveraging the cylinder's 1767 N max push force at 0.9 MPa.
Is the Airtac SCJ50 Standard Cylinder SCJ50X100-30SH the Right Cylinder?
Choose the SCJ50X100-30SH when you need to commission a 50 mm bore actuator with on-machine stroke tuning up to 30 mm. If the 982 N push force at 0.5 MPa is insufficient, stepping up to a 63 mm bore provides 1559 N of push force. For a fixed-stroke application without adjustment, the standard SC series is a more economical choice. This cylinder is a direct replacement for another AirTAC SCJ of identical 50 mm bore, 100 mm nominal stroke, and 30 mm adjust range, provided the port thread, Viton seal, and magnet options match.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ50X100-30SH FAQ
At the standard 0.5 MPa operating pressure, the cylinder provides 982 N of push force and 825 N of pull force. The maximum push force at the 1.0 MPa operating limit is 1767 N.
A screw mechanism in the rear cap allows you to shorten the stroke end by up to 30 mm. This sets a new mechanical stop for the piston, reducing the effective stroke from the nominal 100 mm down to a minimum of 70 mm, without affecting the cylinder's force or speed.
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