Airtac SCJ100 Standard Cylinder SCJ100X350-100
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X350-100 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø100mm bore, 350mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke350 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X350-100
The SCJ100X350-100 is a double-acting, single-rod pneumatic cylinder from AirTAC's adjustable-stroke family, built around a robust 100 mm bore tie-rod body. Its defining feature is a rear-cap adjusting screw that provides up to 100 mm of stroke-end reduction, letting you fine-tune the piston stop position from 250 mm to the full 350 mm nominal stroke without swapping the cylinder. With a 25 mm piston rod and PT1/2 ports, this unit delivers a substantial 3927 N of push force at 0.5 MPa, scaling to 7068 N at the maximum operating pressure of 0.9 MPa.
This adjustable-stroke design is ideal for commissioning trials, format changeovers on packaging lines, and applications where the mechanical end-stop needs periodic take-up for wear. The cylinder body length A(SCJ) is 245 mm, and it includes a 29 mm air cushion for smooth deceleration. Operating on 40 µm filtered air from 0.15 to 1.0 MPa, the SCJ100X350-100 is a genuine AirTAC component built for reliable, repeatable motion control in demanding industrial environments.
Airtac SCJ100 Standard Cylinder SCJ100X350-100 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X350-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 350 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X350-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ100 Standard Cylinder SCJ100X350-100 Is Used
Commissioning & Process Tuning
During new machine bring-up, the 100 mm screw-adjustable stroke lets technicians precisely dial in the piston stop position without iterative cylinder swaps. The 350 mm nominal stroke provides a wide working envelope, while the rear screw enables fine sub-millimeter end-point corrections on the fly.
Format Changeovers on Packaging Lines
In carton erecting or case packing, switching between product sizes often requires a different push or stop position. The SCJ100X350-100 allows operators to quickly adjust the stroke end by up to 100 mm, accommodating multiple box formats with a single cylinder and eliminating the downtime of mechanical stop reconfiguration.
Wear Take-Up in Clamping & Pressing
For clamping fixtures or light press tools where tooling surfaces wear over time, the adjustable stroke acts as a built-in compensation mechanism. The 7068 N maximum push force at 0.9 MPa provides ample power, and the screw can be periodically advanced to maintain consistent clamp pressure and position as contact surfaces bed in.
Is the Airtac SCJ100 Standard Cylinder SCJ100X350-100 the Right Cylinder?
When selecting this cylinder, confirm that the 3927 N push force at 0.5 MPa meets your load requirements. If you need a higher force, stepping up to the SCJ125 bore provides 6136 N of push at the same pressure, while a step down to the SCJ80 bore delivers 2513 N. For applications where the stroke length is fixed and never needs field adjustment, the standard SC100X350 fixed-stroke cylinder is a simpler, cost-effective alternative. The 350 mm stroke is well within the 1500 mm maximum standard stroke for a 100 mm bore, but with longer strokes, always assess the rod for side-loading; an external guide rail or a guided cylinder should be used if the load is not perfectly axial.
As a direct replacement, match this model to another AirTAC SCJ adjustable-stroke cylinder with an identical 100 mm bore, 350 mm nominal stroke, and a 100 mm adjust range. The port thread must be PT, the mounting style must be basic (or match your existing FA/LB/TC accessory), and the unit must not include a magnet unless your sensor setup requires the -S option. This ensures dimensional and performance interchangeability without modifying your machine's end-stop settings.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ100 Standard Cylinder SCJ100X350-100 FAQ
The push force is generated using the full 100 mm bore area, producing 3927 N at 0.5 MPa, 5497 N at 0.7 MPa, and 7068 N at the maximum operating pressure of 0.9 MPa. Because this is a single-rod cylinder, the pull force is lower due to the 25 mm rod subtracting from the piston area, yielding 3681 N at 0.5 MPa. Always size your cylinder based on the lower pull force if the load is applied on the retract stroke.
No. Like all standard pneumatic cylinders, the SCJ100X350-100 will drift or drop its load if air pressure is lost, exhausted, or the directional control valve is centered. The adjustable-stroke screw sets the mechanical end-stop position for the stroke but does not act as a lock or brake. If you need to hold a load without live air pressure, you must add an external mechanical lock, a rod brake, or a pilot-operated check valve to the circuit.
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