Airtac SCJ100 Standard Cylinder SCJ100X700-100
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X700-100 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, 700mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke700 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X700-100
The SCJ100X700-100 is a double-acting, single-rod pneumatic cylinder from the AirTAC SCJ adjustable-stroke family. With a 100 mm bore and a nominal 700 mm stroke, it delivers a substantial push force of 3927 N at 0.5 MPa (up to 7068 N at 0.9 MPa). The defining feature is the rear-cap adjusting screw, which allows the stroke end position to be shortened by up to 100 mm, providing a critical field-adjustment range for commissioning and process fine-tuning without replacing the cylinder.
This model uses a 25 mm diameter piston rod, PT1/2 ports, and an M20x1.5 rod thread for robust mechanical connections. The cylinder body length (A dimension) is 245 mm, and it features an adjustable air cushion of 29 mm for smooth end-of-stroke deceleration. As a genuine AirTAC component, it is built for reliable industrial service with a speed range of 30-800 mm/s and an operating pressure of 0.15-1.0 MPa.
Airtac SCJ100 Standard Cylinder SCJ100X700-100 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X700-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 700 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 SCJ100X700-100
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SCJ100X700-100 Is Used
Process Commissioning & Fine-Tuning
During initial machine setup, the 100 mm adjustment screw allows engineers to precisely dial in the end-stop position for a large-scale clamping or pressing operation, eliminating the need for custom-length cylinders.
Product Format Changeover
On a heavy-duty packaging line, the adjustable stroke enables a quick mechanical changeover between different product sizes by simply altering the pusher's stop point, reducing downtime between batches.
Wear Compensation in Press Tools
In a long-stroke pressing fixture, the rear screw can be periodically advanced to compensate for wear on a pressing pad or tooling surface, maintaining consistent final pressure depth without disassembling the actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X700-100 the Right Cylinder?
Select the SCJ100X700-100 when a high-force actuator is needed and the application requires the ability to dial in the exact stroke end position on-site. The 100 mm of adjustment is ideal for accommodating variations in tooling or workpiece placement. If the required force is lower, stepping down to an SCJ80 bore (2513 N push at 0.5 MPa) can reduce air consumption and physical size. For a fixed, non-adjustable stroke, the standard SC100 series is a more economical choice.
For this 700 mm stroke length, be mindful of side loading on the extended rod. An external guide rail or a switch to a guided cylinder assembly is recommended if the load is not perfectly axial to prevent rod bending and premature seal wear. This cylinder is a direct replacement for another AirTAC SCJ100X700-100 with the same PT port thread and basic mounting configuration.
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 SCJ100X700-100 FAQ
The rear adjusting screw mechanically limits the piston's retraction stroke end, allowing you to shorten the effective stroke by up to 100 mm from the nominal 700 mm. It does not alter the cylinder's output force, which remains 3927 N push and 3681 N pull at 0.5 MPa, regardless of the screw's setting.
No. Like all standard pneumatic cylinders, it will drift or drop if air pressure is lost or the control valve is centered. The adjustable screw only sets the stroke end position; it is not a mechanical lock. To hold a load without air pressure, you must add an external rod brake or a pilot-operated check valve.
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