Airtac SCJ63 Standard Cylinder SCJ63X100-50TC
The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-50TC 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. Ø63mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Nominal stroke100 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 28 mm
About the Airtac SCJ63 Standard Cylinder SCJ63X100-50TC
This SCJ63X100-50TC double-acting, single-rod cylinder provides a nominal 100 mm stroke with a 50 mm rear adjusting screw, allowing you to fine-tune the stroke end position on the fly. The 63 mm bore delivers 1559 N of push force at 0.5 MPa, making it a robust choice for applications where the final stop point needs to be dialled in precisely during commissioning or changeovers.
The cylinder is configured with a centre trunnion (TC) mount for pivoting motion, supplied with the TCM1 bracket. It features a 20 mm piston rod, PT1/4 ports, and a 28 mm air cushion for smooth deceleration. The body length A(SCJ) is 197 mm, slightly longer than a fixed-stroke SC to accommodate the adjustment mechanism.
Airtac SCJ63 Standard Cylinder SCJ63X100-50TC Technical Specifications
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-50TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCJ63 Standard Cylinder SCJ63X100-50TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SCJ63 Standard Cylinder SCJ63X100-50TC Is Used
Commissioning & Setup
The 50 mm adjustment range lets technicians quickly dial in the exact end-stop position during machine commissioning without swapping cylinders or machining custom stops.
Format Changeovers
On packaging or assembly lines, the stroke can be easily re-adjusted to handle different product sizes or box formats, minimizing downtime between batches.
Wear Compensation
As tooling or gripper pads wear over time, the rear adjusting screw can be used to take up the slack and maintain precise positioning without replacing the actuator.
Is the Airtac SCJ63 Standard Cylinder SCJ63X100-50TC the Right Cylinder?
Choose the SCJ63 bore when your load requires the 1559 N push force at 0.5 MPa. If you need more force, step up to the 80 mm bore, which provides 2513 N at the same pressure. For a lighter, more compact solution, the 50 mm bore offers 982 N. The SCJ is ideal when you need field-adjustable stroke; if your stroke is fixed and never changes, a standard SC cylinder is a simpler, more cost-effective pick. This model is a direct replacement for another AirTAC SCJ63X100-50TC with a PT port, TC mount, and no magnet.
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 SCJ63 Standard Cylinder SCJ63X100-50TC FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The push force is higher because the single piston rod reduces the effective area on the return stroke.
A screw in the rear cap acts as an adjustable end-stop for the piston. You can shorten the effective stroke by up to 50 mm from the 100 mm nominal maximum. It does not change the cylinder's force or speed, only the stroke end position.
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