Airtac SCJ100 Standard Cylinder SCJ100X300-100S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X300-100S 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, 300mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke300 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X300-100S
The SCJ100X300-100S is a double-acting, single-rod pneumatic cylinder from AirTAC's SCJ series, featuring a rear-cap adjusting screw that provides a 100 mm field-adjustable stroke range. With a 100 mm bore and a 25 mm diameter piston rod, this model delivers a substantial push force of 3927 N at 0.5 MPa, making it suitable for heavy-duty positioning tasks where the end-of-stroke position needs fine-tuning without replacing the cylinder.
This unit includes a built-in magnet, allowing for direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise end-of-stroke detection. The body length A is 245 mm, and the standard air cushion is 29 mm, providing reliable deceleration for the 300 mm nominal stroke. The default port thread is PT1/2 and the seal material is TPU.
Airtac SCJ100 Standard Cylinder SCJ100X300-100S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X300-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 300 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 SCJ100X300-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SCJ100X300-100S Is Used
Format Changeovers
Quickly adjust the end-stop position on packaging or converting machines when changing product sizes, using the 100 mm screw range to avoid mechanical stop swaps.
Commissioning Trials
Fine-tune the actuator's stroke on a new assembly line to find the optimal pressing or insertion depth without needing multiple fixed-stroke cylinders.
Wear Compensation
Take up mechanical slack or tooling wear over time by advancing the rear screw, maintaining precise end-position on clamping or riveting fixtures.
Is the Airtac SCJ100 Standard Cylinder SCJ100X300-100S the Right Cylinder?
Select the SCJ100X300-100S when your application requires a powerful, field-adjustable stroke end position. The 100 mm adjustment range is ideal for commissioning or format changes on large machinery. If the 3927 N push force at 0.5 MPa is insufficient, stepping up to the 125 mm bore provides 6136 N. For a fixed-stroke solution without the rear screw, the standard SC100X300 is a direct alternative. A replacement must match the 100 mm bore, 300 mm nominal stroke, 100 mm adjust range, PT1/2 port, and the built-in magnet. For this 300 mm stroke, ensure the rod is guided externally if significant side loads are present to prevent bending.
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 SCJ100X300-100S FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N due to the 25 mm rod reducing the piston area on the retract side. Maximum force at 0.9 MPa is 7068 N push.
A screw in the rear cap limits the piston's outward travel. Turning it changes the stroke end position by up to 100 mm, allowing you to set a shorter effective stroke than the 300 mm nominal maximum without changing the cylinder body.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ100 Standard Cylinder SCJ100X300-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.