Airtac SCJ63 Standard Cylinder SCJ63X100-40TC
The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-40TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 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-40 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 28 mm
About the Airtac SCJ63 Standard Cylinder SCJ63X100-40TC
The SCJ63X100-40 is a 63 mm bore double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides a 40 mm field-adjustable stroke range, letting you fine-tune the end position without removing the cylinder. At 0.5 MPa it delivers 1559 N push and 1402 N pull, while at the maximum operating pressure of 0.9 MPa the push force reaches 2805 N, giving a useful force reserve for clamping and pressing tasks.
This model is configured with a TC centre trunnion mount (supplied with the TCM1 bracket, order code F-SC63TC) that allows the cylinder to pivot during operation, making it ideal for swinging or articulating machine sections. The 20 mm piston rod, M16x1.5 rod thread and PT1/4 ports are standard for the 63 bore, and the 28 mm air cushion decelerates the piston smoothly at both ends of the adjustable stroke.
Airtac SCJ63 Standard Cylinder SCJ63X100-40TC Technical Specifications
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-40TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 40 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 SCJ63X100-40TC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -40 | 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 SCJ63X100-40TC Is Used
Commissioning & Fine-Tuning
During machine setup, the 40 mm rear screw lets technicians precisely dial in the stroke end position for sensors, stops, or tooling alignment without swapping cylinders or machining spacer blocks.
Product Format Changeover
On packaging or assembly lines running multiple product sizes, operators can quickly adjust the cylinder stroke to match a new box height, pallet size, or component dimension, reducing changeover downtime.
Wear Compensation
In pressing or clamping stations where tooling or pads wear over time, the adjustable stroke end compensates for material loss, maintaining consistent contact pressure without reprogramming or mechanical rework.
Is the Airtac SCJ63 Standard Cylinder SCJ63X100-40TC the Right Cylinder?
Choose the SCJ63 when your application needs roughly 1500–2800 N of push force and the ability to dial in the stroke end on the machine. If you need more force, the 80 mm bore SCJ80 provides 2513 N push at 0.5 MPa; if you need less, the 50 mm bore SCJ50 delivers 982 N. The 40 mm adjustment range on this model is well suited to commissioning trials and format changeovers where the stop position may need several millimetres of tweaking.
A direct replacement must match the 63 mm bore, 100 mm nominal stroke, 40 mm adjustment range, PT ports, and the TC centre trunnion mounting. If your stroke is fixed and never needs field adjustment, the standard SC63X100 is a simpler, slightly shorter alternative. For strokes of 300 mm or longer, consider an external guide rail or a guided cylinder to protect the 20 mm rod from side-load bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-40)
- ✓ 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 SCJ63X100-40TC FAQ
At 0.5 MPa the cylinder produces 1559 N push and 1402 N pull. At the maximum operating pressure of 0.9 MPa, push force increases to 2805 N. Because it is a single-rod cylinder, push force is always greater than pull force due to the rod area on the return side.
Yes, provided the old unit is an AirTAC SCJ63 with a 100 mm nominal stroke, 40 mm adjustment range, PT ports, and TC centre trunnion mounting. The mounting bracket code is F-SC63TC and the trunnion ships with the cylinder. If your old cylinder has a different adjustment range or mounting style, confirm the suffix code before ordering.
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