Airtac SCJ50 Standard Cylinder SCJ50X70-10TC
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X70-10TC 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, 70mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke70 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X70-10TC
The SCJ50X70-10TC is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, giving you 10 mm of field-adjustable stroke-end control. This 50 mm bore model delivers a substantial 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa), making it a robust actuator for tasks requiring fine positional tuning after installation.
Equipped with a TC centre trunnion mount and the TCM1 bracket, this cylinder is built to pivot, absorbing side loads in swinging applications. The 20 mm diameter piston rod and PT1/4 ports are standard for the 50 mm bore, and the 21 mm air cushion at each end ensures quiet, controlled deceleration throughout its adjustable range.
Airtac SCJ50 Standard Cylinder SCJ50X70-10TC Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X70-10TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 70 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 SCJ50X70-10TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SCJ50X70-10TC Is Used
Format Changeovers
Quickly adjust the end-stop for different product sizes on a packaging line without swapping the cylinder or adding external hard stops.
Diverter Gates
Fine-tune the open and closed positions of a material-handling diverter gate to ensure a perfect seal or alignment every time.
Clamping with Wear Compensation
Use the 10 mm adjustment to compensate for jaw or pad wear in a clamping fixture, maintaining consistent clamping force over the tool's life.
Is the Airtac SCJ50 Standard Cylinder SCJ50X70-10TC the Right Cylinder?
Select the SCJ50X70-10TC when your application demands a pivoting mount and the ability to dial in the stroke end precisely. If you need more force, stepping up to the 63 mm bore provides 1559 N of push force at the same pressure. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. A direct replacement must match the 50 mm bore, 70 mm nominal stroke, 10 mm adjustment range, PT port thread, and TC centre trunnion mounting configuration.
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 SCJ50X70-10TC FAQ
A screw in the rear cap allows you to shorten the cylinder's stroke end by up to 10 mm. The nominal 70 mm stroke is the maximum; you can reduce it anywhere within that 10 mm range to precisely set the piston's stopping point.
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The push force is higher because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 200 kgf.
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