Airtac SCJ63 Standard Cylinder SCJ63X100-50H
The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-50H 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 SCJ63X100-50H
The SCJ63X100-50H is a double-acting, single-rod pneumatic cylinder with a 50 mm field-adjustable stroke range, letting you fine-tune the end position without swapping the unit. Its 63 mm bore delivers 1559 N of push force at 0.5 MPa, scaling up to 2805 N at 0.9 MPa, making it a robust actuator for mid-range automation tasks.
This model is built with Viton (FKM) seals, extending the operating temperature range to 0–150 °C for hot or chemically aggressive environments. The 20 mm diameter rod and 28 mm air cushion at each end provide smooth deceleration, while the rear adjusting screw precisely sets the stroke end within the 50 mm range.
Airtac SCJ63 Standard Cylinder SCJ63X100-50H Technical Specifications
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-50H |
|---|---|
| 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 SCJ63X100-50H
| 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 SCJ63X100-50H Is Used
Hot Press End-Stop Calibration
The 50 mm adjustment range and Viton seals allow precise setting of the pressing depth in heated platen machinery, compensating for thermal expansion of tooling without changing the cylinder.
Diverter Gate Positioning
Fine-tune the gate angle on a high-temperature conveyor sorting system. The adjustable stroke lets operators quickly correct the pusher's end position for different package sizes during changeovers.
Clamping Stroke Take-Up
In a welding fixture, use the rear screw to take up wear on clamp pads over time. The 50 mm range provides a long service life before needing to replace the consumable contact point.
Is the Airtac SCJ63 Standard Cylinder SCJ63X100-50H the Right Cylinder?
Choose the SCJ63X100-50H when you need to dial in a 100 mm nominal stroke on the machine. If you require more force, the 80 mm bore SCJ series offers 2513 N of push at 0.5 MPa. For applications where the stroke length is permanently fixed, a standard SC63X100 cylinder is a simpler, more cost-effective alternative. To replace this unit, match the 63 mm bore, 100 mm nominal stroke, 50 mm adjust range, PT port thread, and Viton seals. For strokes of 100 mm, side-loading is typically minimal, but for longer strokes, always consider an external guide rail.
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 SCJ63X100-50H FAQ
At the standard 0.5 MPa operating pressure, this double-acting cylinder provides 1559 N of push force and 1402 N of pull force. The maximum push force at 0.9 MPa is 2805 N.
A rear-cap adjusting screw allows you to shorten the stroke end by up to 50 mm. The nominal 100 mm stroke is the maximum; you can set any effective stroke between 50 mm and 100 mm directly on the cylinder.
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