Airtac SCJ50 Standard Cylinder SCJ50X50-50TC
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X50-50TC 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. Ø50mm bore, 50mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke50 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X50-50TC
The SCJ50X50-50TC delivers 982 N of push force at 0.5 MPa, driven by a 20 mm diameter piston rod through a PT1/4 port. Its defining feature is the 50 mm rear adjusting screw, which lets you shorten the stroke end anywhere within that range without replacing the cylinder—ideal for commissioning and fine-tuning.
This model includes a TC centre trunnion mount, supplied with the TCM1 bracket, allowing the cylinder to pivot as it strokes. The tie-rod body measures 194 mm in length (A dimension), and the adjustable air cushion provides smooth deceleration over the last 21 mm of travel.
Airtac SCJ50 Standard Cylinder SCJ50X50-50TC Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X50-50TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 50 mm |
| Stroke adjustment | Up to 50 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 SCJ50X50-50TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×50 | 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 SCJ50 Standard Cylinder SCJ50X50-50TC Is Used
Format Changeovers
Quickly adjust the stroke end to accommodate different product sizes on a packaging or assembly line without swapping the cylinder or adding external hard stops.
Clamp Stroke Tuning
Fine-tune the closing position of a pivoting clamp to account for part tolerances or tooling wear, ensuring consistent clamping force without over-stroking.
Diverter Gate Positioning
Set the exact open angle of a material-handling diverter gate by adjusting the cylinder's stroke end, directing flow reliably between two conveyor lanes.
Is the Airtac SCJ50 Standard Cylinder SCJ50X50-50TC the Right Cylinder?
Choose the SCJ50X50-50TC when you need to dial in a precise end position on a pivoting assembly. If 982 N of push force is marginal, the SCJ63 bore steps up to 1559 N; if it is excessive, the SCJ40 offers 628 N. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. This unit replaces any SCJ50X50-50TC with matching PT ports, centre trunnion mount, and 50 mm adjust range.
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 SCJ50 Standard Cylinder SCJ50X50-50TC FAQ
A screw in the rear cap limits how far the piston can retract. By turning the screw, you can shorten the stroke by up to 50 mm from its 50 mm nominal maximum. It adjusts the end position only and does not change the cylinder's force output.
The SC has a fixed stroke, while the SCJ adds a rear adjusting screw for field-adjustable stroke length. Choose the SCJ when you need to fine-tune the end position after installation, and the SC when a fixed, non-adjustable stroke is sufficient.
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