Airtac SCJ50 Standard Cylinder SCJ50X50-10H
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X50-10H is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø50mm bore, 50mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke50 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X50-10H
The SCJ50X50-10H is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, delivering a push force of 982 N at 0.5 MPa. Its rear adjusting screw provides a 10 mm range to fine-tune the stroke end position, making it ideal for commissioning and precise end-stop setting without changing the cylinder.
Built with a 20 mm diameter piston rod and PT1/4 ports, this model includes an H-suffix Viton (FKM) seal, extending its operating temperature range to 0–150 °C for demanding thermal environments. The body length is 194 mm, and it features an adjustable air cushion for smooth deceleration.
Airtac SCJ50 Standard Cylinder SCJ50X50-10H Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X50-10H |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 50 mm |
| Stroke adjustment | Up to 10 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 SCJ50X50-10H
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×50 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ50X50-10H Is Used
Commissioning Fine-Tuning
Adjust the stroke end by up to 10 mm on a new machine during initial setup to perfectly align the actuator with tooling or stops without swapping shims.
High-Temp Workholding
The Viton seals allow this cylinder to operate reliably in heated press or autoclave fixtures where standard seals would degrade, maintaining a 50 mm clamping stroke.
Wear Take-Up
Compensate for gradual wear on a mechanical stop in a conveyor diverter by slightly lengthening the cylinder's effective stroke via the rear screw.
Is the Airtac SCJ50 Standard Cylinder SCJ50X50-10H the Right Cylinder?
Choose the SCJ50X50-10H when you need to dial in a precise 50 mm nominal stroke with 10 mm of end adjustment. If more force is required, step up to the 63 mm bore which provides 1559 N of push at the same pressure. For applications needing a fixed, non-adjustable stroke, the standard SC series is a direct alternative. A direct replacement must match the 50 mm bore, 50 mm stroke, 10 mm adjust range, PT ports, and Viton seal material.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ50X50-10H FAQ
At 0.5 MPa, it provides 982 N of push force and 825 N of pull force due to the 20 mm rod reducing the piston area on the return stroke.
Yes, if you need stroke-end adjustability. The SCJ50X50-10H matches the 50 mm bore and 50 mm stroke of an SC, but adds a 10 mm adjustment screw. Ensure your mounting and port threads (PT) are compatible.
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